INDEX OF MANUALS, BULLETINS, AND SERVICE INFORMATION LETTERS for PRECISION AIRMOTIVE FUEL CONTROLS MSA FLOAT CARBURETORS 14800 40 th AVE NE MARYSVILLE, WA 98271 FORM 15-895V REV V DEC 14, 2006
The information contained in this publication references the latest published instructions regarding overhaul and maintenance of Precision Airmotive Fuel Controls as of the date of publication. We suggest you use this index as a guide to verify that your RS/RSA and MSA service information is complete and up to date. Should you find that you are missing published material or that manuals and bulletins are not to the latest revision, please contact the Product Support Department at Precision Airmotive LLC: Precision Airmotive LLC 14800-40 TH AVE NE Marysville, WA 98271 Telephone: (360) 651-8282 Telefax: (360) 651-8080 NOTE: The information contained in this index has been compiled by Precision Airmotive LLC in an effort to provide a historical record of service information relating to the RS/RSA and MSA fuel controls. This information is based on the records available at the time of publication. We will continue our efforts to locate information relating to our products. If you are aware of service information relating to these products which is not referenced in this index, or if you have any questions regarding the information in the index, we ask that you contact Precision Airmotive's Product Support Department at the above address. NOTE: Vertical black bands in the margin denote changes from the previous release.
FUEL INJECTION PUBLICATIONS Section Description Page 1. Component Maintenance - Manual Index 1 2. Operation and Service- Manual Index 2 3. Miscellaneous 3 A. Training Aids B. Instructions C. References 4. RS/RSA Service Bulletin Index 4 5. Special Service Bulletins 8 6. RS/RSA Bulletin Application List 9 7. Small Reciprocating Engine Service 12 Information Letters Index 8. Fuel Metering - General (Service 16 Information Letters) 9. Small Reciprocating Engine - Service 17 Information Letters (Early Series) 15-895V Page i
MSA FLOAT CARBURETORS CARBURETOR PUBLICATIONS Section Description Page 1. MSA Maintenance Manual Index 19 2. MSA Service Bulletin Index 19 3. MSA Service Information Letter Index 23 4. MSA Bulletin Application List 25 Page ii 15-895V
Form No. Description Date Change; Date 1. Component Maintenance- Manual Index: 15-318C Model RS-10B1 and RS-10ED2 10-1-76 Fuel Injectors 15-329C Model RS-10B2 Fuel Injector 2-15-87 (P/N 391783) 15-362C Model RS-10ED1 Fuel Injector 11-1-75 1; 7-15-77 15-368C Model RS-10FB1 Fuel Injector, 7-1-87 Air Bleed Nozzle Assembly, and Model FM-A1 Flowmeter Modulator Assembly 15-381G Model RSA-5AD1 Fuel Injector 2-15-88 1; 6-1-92 15-385A* RS-10B2 Service Manual 3-1-65 15-386 Overhaul Manual W/Illustrated 2-1-64 1; 5-1-66 Parts Catalog for Model RS-5BD1 Fuel Injector (P/L 2524114), Flow Divider Assembly (P/N 2524115), and Air Bleed Nozzle Assembly (P/N 2524107) 15-412A Model RS-5BD2 Fuel Injector 12-1-70 1; 6-1-77 15-419D Model RSA-5AB1 Fuel Injector 2-24-90 15-419C NOTE: Revision D was a change 5-30-85 which did not affect technical information. Both Revision C and Revision D are considered current manuals. 15-433D Model RSA-10AD1 Fuel Injection Servo 9-1-94 15-458G Model RSA-10ED1 Fuel Injector 8-15-88 1; 12-15-90 15-471E Model RSA-10DB1 Fuel Injector 2-1-89 1; 8-31-90 15-514 Overhaul Manual for Model RS-5BD1 3-1-69 1; 10-15-73 Fuel Injector (P/L 2524353), Flow Divider Assembly (P/N 2524092), and Air Bleed Nozzle Assembly (P/N 2524107) 15-515A Illustrated Parts Catalog for 10-15-73 Model RS-5BD1 Fuel Injector (P/L 2524353), Flow Divider Assembly (P/N 2524092), and Air Bleed Nozzle Assembly (P/N 2524107) 15-895V Page 1
MSA FLOAT CARBURETORS Form No. Description Date Change; Date 1. Component Maintenance- Manual Index (con t): 15-520B Model RSA-7AA1 Fuel Injector 6-15-85 2; 11-21-90 15-540D Flow Dividers Used with 12-16-04 RS/RSA Injectors 15-541E Air Bleed Nozzles Used With 6-1-85 RS/RSA Injectors 15-542C Model RSA-10DB2 Fuel Injector 8-15-88 15-543A Pressurizing Valve Kit 7-15-71 15-548A Discharge Nozzle Assembly 9-1-87 15-549B Distributor Valve Assembly 8-1-87 1; 1-7-94 15-633B Model RSA-7DA1 Fuel Injector 4-15-89 15-700A Model RSA-10ED2 Fuel Injector 8-1-85 15-900A Model RSA-5AD2 (P/N 2576540) 12-1-99 1; 11-7-03 2. Operation and Service - Manual Index: 15-338E Model RSA-5 and RSA-10AD1 Fuel 11-8-96 Injectors 15-388A Model RS-5BD2 Fuel Injection 3-1-65 15-394B Model RS-5 and RS-10 Fuel 9-1-69 Injectors 15-468B Model RSA-10DB1 and RSA-10ED1 2-1-73 Fuel Injectors 15-521B Model RSA-7AA1 Fuel Injector 1-1-90 15-583 Model RSA-10DB2 Fuel Injector 2-15-73 1; 3-15-76 15-596A Model RSA-7DA1 Operation and 10-15-76 Service Page 2 15-895V
Form No. Description Date Change; Date 3. Miscellaneous: A. Training Aids 15-810B Troubleshooting Techniques 1-1-90 Precision Airmotive Fuel Metering System 15-812B RSA Fuel Injection System 1-1-90 Training Manual 15-816B RS/RSA Memory Jogger 3-8-90 15-901C Installation Troubleshooting Chart 4-30-02 B. Instructions 15-888* Bendix Master (P/N 2550925) 8-15-87 C. References 15-537B* Interchangeability and Cross 10-1-78 Reference List RSA Fuel Injection Systems Basic Number vs Injector Parts List 15-725A* Active List-Fuel Metering 5-1-84 Equiptment for Reciprocating and Turbine Engines 15-761* Fuel Metering Application 12-1-82 List - Reciprocating and Turbine Engines 15-769B Fuel Metering Certification 2-22-86 List NOTE: All current manuals, Service Bulletins, and Service Information Letters are available in a full set; Form# 15-600. Service Publications no longer available are indicated by an asterisk (*) 15-895V Page 3
4. RS/RSA Service Bulletin Index: No. Date Rev. Amend: Date Subject RS * 1 7-26-62 Nozzle Shields RS * 2 8-23-62 Idle Link Pins RS * 3 11-21-62 Manual Mixture Control Modification RS * 4 12-26-62 In-line Fuel Strainer RS * 5 1-23-63 Instn. Boost Pump Relief Valve RS * 6 3-25-63 RS-10ED1 Modification to -4 RS * 7 5-27-63 RS-10B2 A/C Fuel Strainer RS * 8 5-20-63 Improved Link Pins RS * 9 6-8-63 Test Fitting RS * 10 11-25-63 1 P/N 2524145-1 Only RS * 11 3-27-68 2 MIL-4343B Lube RS * 12 11-27-63 1 AMC Rework RS-10FB1 RS * 13 2-6-64 Removal of Nozzle Screens (SI 1186) RS * 14 6-24-64 Throttle Shaft Bushing RS * 15 5-5-66 1 New Mixture Control Valve RS-10ED1 RS * 16 9-14-64 Installing Nozzle Screen RS * 17 12-14-64 Flow Dividers RS * 18 9-1-66 4 Superseded by S.B. #27 (SB 305B)(A.D. 67-22-06) RS * 19 7-1-65 2524145 2524213 only RS 20 8-17-71 2 Troubleshooting Fuel in Air Side (SI 1166) RS * 21 CANCELLED RS * 22 1-15-68 2 RS-10FB1 Modified to -6 RS * 23 1-10-67 Idle Link Adjustment RS * 24 5-7-68 Nozzle Rework NOTE: All current Service Bulletins are available in a full set; Form# 15-SBSET. Service Publications no longer available are indicated by an asterisk (*) Page 4 15-895V
4. RS/RSA Service Bulletin Index: (Continued) No. Date Rev. Amend: Date Subject RS * 25 4-5-68 RS-10FB1 Nozzle Roll Pins RS * 26 5-6-70 1 Installation of Throttle Stop RS * 27 9-10-69 2 Diaphragm Assembly Modification RS * 28 9-18-69 2 Diaphragm Assembly Modification RS * 29 11-20-69 1 Regulator Stem Travel RS * 30 10-20-70 2 RSA-10AD1 Modified to -6 RS * 31 10-26-70 1 RSA-10DB1 Modified to -5 RS * 32 6-30-70 RSA-7AA1 Removal of Nonmetallic Washer RS * 33 5-19-71 RSA-10DB1 Modification to -6 RS * 34 5-19-71 RSA-10DB2 Modification to -2 RS * 35 5-18-71 RSA-10AD1 Modification to -7 (SI 1244) RS * 36 5-14-71 RSA-7AA1 Modification to -3 RS * 37 9-28-71 RSA-10DB1 Modification to -7 (SI 1247) RS * 38 10-17-73 1 2524199-5 2524254-3 Replacement AMC RS * 39 4-10-72 RSA-7AA1 rework of Idle Valve Lever RS * 40 1-31-73 Bypass Filter Assembly RS * 41 4-7-73 1 Letter "T" Inspection of Air Diaphragm (A.D. 73-10-02) RS * 42 5-23-74 RSA-10DB1 Modification to -8 RS 43 12-16-74 Flow Dividers Modification to -2 (SB 382) (A.D. 75-09-15) RS 44 8-12-76 Modification of 2524307-3 RSA-5AB1 RS 45 10-11-79 1 RSA-10ED1 Modification to 2524648-A NOTE: All current Service Bulletins are available in a full set; Form# 15-SBSET. Service Publications no longer available are indicated by an asterisk (*) 15-895V Page 5
4. RS/RSA Service Bulletin Index: (Continued) No. Date Rev. Amend; Date Subject RS 46 7-19-78 1;6-21-79 RSA-10AD1 Bellows Seal Modification 2;7-20-82 RS 47 10-1-77 Delrin Mixture Control Bushing Rework RS 48 1-8-79 2 100% Replacement of Strainers RS 49 1-11-78 RSA-7AA1 Mix Control Shaft Pinhole RS 50 2-15-78 Idle Mixture Shaft Inspection RS 51 5-15-78 RSA-10 Fuel Pressure Fitting Rework RS 52 1-8-79 3 1;7-20-82 RSA-5 Old Bellows Change (SB 428) 2;12-21-82 (A.D. 78-23-10) RS 53 1-8-79 3 1;12-21-82 RSA-7AA1 Bellows Change (SB 429) (A.D. 78-23-10) RS 54 1-8-79 3 1:9-13-79 RSA-10DB1/10DB2, RSA-10ED1/10ED2 3;12-21-82 Bellows Change (SB 430) (A.D. 78-23-10) RS 55 1-15-80 1 1;12-21-82 RSA-5AB1 Modification to Bellows Seal RS 56 1-15-79 1 RSA-5AB1 Modification to Bellows Seal RS 57 2-1-79 1 RSA-5 & -10 Diaphragm Inspection (SB 433)(A.D. 79-04-05) RS 58 8-14-80 3 2;12-21-82 RSA-10D & E Modification to Bellows Seal RS 59 2-14-80 1 1;7-14-80 RSA-7AA1 Modification to Bellows Seal 3;12-21-82 RS 60 1-15-79 1 1;7-20-82 RSA-5AB1 Modification to Bellows Seal RS 61 2-14-80 1 2;12-21-82 RSA-5AD1 Modification to Bellows Seal RS 62 4-15-81 2 RS-10 Series Mixture Control Shaft Modification (AD 81-03-05) RS 63 8-1-79 RSA-10 Diaphragm Inspection (SB445) RS 64 Not Published RS 65 1-30-80 Mixture Control Shaft Seal RS 66 3-18-80 1 2;6-20-80 Idle Valve Assembly Change RSA-10 (SB 441) NOTE: All current Service Bulletins are available in a full set; Form# 15-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 6 15-895V
4. RS/RSA Service Bulletin Index: (Continued) No. Date Rev. Amend;Date Subject RS 67 Not Published RS 68 * 8-20-79 1;8-29-79 Stem Crimp (Superseded by RS-71) 2;9-6-79 (SB443)(A.D. 79-21-08 and A.D.79-26-03) RS 69 * 8-20-79 1;8-30-79 Stem Crimp (Superseded by RS-71) RS 70 * 8-20-79 1;8-30-79 Stem Crimp (Superseded by RS-71) RS 71 2-18-80 1 1;7-14-80 All RSA - Locktite for Stem Nut 2;7-20-82 RS 72 11-15-80 RS-10ED1 New Ball valve and Seat RS 73 11-15-80 Distributor Valve - New Ball Valve and Seat RS 74 8-15-86 1 RS-10FB1 Nozzle - New Ball Valve and Seat RS 75 10-25-80 Modification 2524624-1 to -2 RS 76 12-15-86 1 RS Series Diaphragm Change to Flourosilicone RS 77 11-15-86 2 Two Piece Nozzle Assembly (SI 1414) RS 78 2-4-81 RSA-5 2524712-7 Modification to -8 RS 79 2-4-81 RSA-10 2524791-4 Modification to -5 RS 80 5-15-81 RS-5 Mixture Control Shaft Seal RS 81 6-15-81 RS-5 New Distributor Seat and Needle Assembly RS 82 9-18-81 RSA-5AD1 2524359-8 Mod to -9 RS 83 1-4-85 1 RSA-7 Enrichment Jet Change to -58 RS 84 12-14-84 RSA-7 New AMC Bellows RS 85 6-20-83 1;8-10-83 RSA-10ED1 Diaphragm 2541803 2;1-3-84 (SB 467)(A.D. 83-22-04) RS 86 12-23-83 1;12-1-84 RSA-5 New Fuel Diaphragm 2541801 RS 87 9-18-85 RSA-10AD1 New Fuel Diaphragm 2541801 RS 88 6-10-83 1;8-10-83 RSA-10ED1 Diaphragm 2541803 2;11-10-83 (SB 467)(A.D. 83-22-04) RS 89 9-18-85 RSA-7 New Fuel Diaphragm 2541802 NOTE: All current Service Bulletins are available in a full set; Form# 15-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. 15-895V Page 7
4. RS/RSA Service Bulletin Index: (Continued) No. Date Rev. Amend;Date Subject RS 90 6-18-85 Removal of Constant Effort Spring on P/L 2524896 PRS 91 2-28-89 RSA-7AA1 Enrichment Valve Setting PRS 92 5-26-89 RSA-7AA1 O-Ring Contamination (A.D. 89-13-02) PRS 93 6-30-89 RSA-7AD1 O-Ring Contamination PRS 94 9-21-89 1;6-25-90 RSA-7AA1 Modification to -10 PRS 95 9-21-89 RSA-10ED1 P/L 2549038-1 Modification to -2 PRS 96 5-14-90 2524232-2 Flow Divider Recall PRS 97 11-11-91 1 RS/RSA Overhaul Periods PRS 98 11-18-91 Rubber Center Body Seals PRS 99 10-21-92 Unauthorized Parts In Fuel Injection Systems PRS 100 6-7-93 Goode Engineering Diaphragm Recall. PRS 101 7-19-93 Nozzle Assy Recall 2541946, 2524917-1, 2524923-1. PRS 102 9-14-93 Unapproved Parts In RSA Fuel Injection Systems. (Consolidated) PRS 103 5-12-98 RSA-10 Fuel Diapgragm Assy, P/N 2541803 PRS 104 1-31-00 Australian Av-Gas Contamination PRS 105 11-12-04 1 Servo Metered Fuel Pressure Port Leakage PRS 106 11-10-04 1 Servo Recall - P/N 2524273-12 5. Special Service Bulletins: SSB* 315 CANCELLED SSB* 316 5-15-69 Modification of RSA-5AD1 SSB* 317 9-1-85 1 Modification of Bendix Fuel Injectors and Carburetors (SI 1378) SSB* 318 3-15-81 2 Overhaul Periods for Carburetors and Fuel Injectors (SI 1404) MA * 2500 2-27-68 RS-5BD1 Modification Numbers shown in () are Lycoming Service Bulletins (SB) or Service Instructions (SI) that correspond to the Bendix Bulletin. NOTE: All current Service Bulletins are available in a full set; Form# 15-SBSET. Page 8 15-895V
Service Publications indicated by an asterisk (*) are considered obsolete. 6. RS/RSA BULLETIN APPLICATION LIST S.B. # INJECTOR MODEL SUBJECT R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S A A A A A A A A A 5 5 1 1 1 1 1 5 5 7 7 1 1 1 1 1 B B 0 0 0 0 0 A A A D 0 0 0 0 0 D D B B E E F B D A A A D D E E 1 2 1 2 D D B 1 1 1 1 D B B D D 1 2 1 1 1 2 1 2 RS 1* X X Nozzle shields RS 2* X Idle link pins RS 3* X Man.M.C.mod. RS 4* X In line strainer RS 5* X Boost pump relief valve RS 6* X Mod to issue 4 RS 7* X A/C fuel strainer RS 8* X X X X X X X X X X X X X Improved link pins RS 9* X X X Test fitting RS 10* X P/L 2524145-1 RS 11* X X X X X X X X X X X X X X X X MIL-4343B lube RS 12* X AMC rework RS 13* X X Nozzle screen removal RS 14* X Throttle shaft bushings RS 15* X New M.C. valve RS 16* X Instn. nozzle screen RS 17* X X X Flow dividers RS 18-4* X X Superseded by RS-27 RS 19* X 2524145, 4213 only RS 20-2 X X X X X X Troubleshooting RS 21* CANCELLED RS 22-2* X Mod to -6 RS 23* X X Idle link adj. RS 24* X X X Nozzle rework RS 25* X Nozzle roll pins RS 26-1* X X X X X X Instn. of thr. stop RS 27-2* X X X Diaphragm assy. mod. RS 28-2* X X Diaphragm assy. mod. 15-895V Page 9
S.B. # INJECTOR MODEL SUBJECT R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S A A A A A A A A A 5 5 1 1 1 1 1 5 5 7 7 1 1 1 1 1 B B 0 0 0 0 0 A A A D 0 0 0 0 0 D D B B E E F B D A A A D D E E 1 2 1 2 D D B 1 1 1 1 D B B D D 1 2 1 1 1 2 1 2 RS 29-1* X X X X X X Reg. stem travel RS 30-2* X Mod. to -6 RS 31* X Mod. to -5 RS 32* X Remove non-met washer RS 33* X Mod. to -6 RS 34* X Mod. to -2 RS 35* X Mod. to -7 RS 36* X Mod. to -3 RS 37* X Mod. to -7 RS 38-1* X Replacement of AMC RS 39* X Rwk of idle valve lever RS 40* X X X X Bypass filter RS 41-1* X X X Ltr T insp of diaphragm RS 42* X Mod. to -8 RS 43 Flow dividers mod. -2 RS 44 X 2524307-3 mod. RS 45-1 X 2524648 A mod. RS 46-1 X Bellows type seal RS 47 X X X X X X M.C. stem bushing RS 48 X X X X X X X X X X X X X X 100% Filter replacement RS 49 X Mod. of M.C. assy RS 50 X X X X X X Insp. "O" ring groove RS 51 X X Rwk fuel pressure fitting RS 52-3 X X X Bellows type seal RS 53-3 X Bellows type seal RS 54-3 X X X X Bellows type seal RS 55-1 X Bellows type seal RS 56-1 X 2524712-1 mod. Page 10 15-895V
S.B. # INJECTOR MODEL SUBJECT R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S A A A A A A A A A 5 5 1 1 1 1 1 5 5 7 7 1 1 1 1 1 B B 0 0 0 0 0 A A A D 0 0 0 0 0 D D B B E E F B D A A A D D E E 1 2 1 2 D D B 1 1 1 1 D B B D D 1 2 1 1 1 2 1 2 RS 57-1 X X X Insp. fuel diaphragm RS 58-3 X X X Bellows type seal RS 59-1 X Bellows type seal RS 60-1 X Bellows type seal RS 61-1 X Bellows type seal RS 62-1 X X X X X Mix. cont. shaft mod. RS 63 X X X Fuel Diaphragm Insp. RS 64 CANCELLED RS 65 X X X X X X X Mix. cont. shaft mod RS 66-1 X X Idle valve assy mod RS 67 CANCELLED RS 68* X X X X X X X Crimp reg stem RS 69* X Crimp reg stem RS 70* X Crimp reg stem RS 71-1 X X X X X X X X X Lock-tite stem nut RS 72 X New ball valve RS 73 Distributor Valve Series New ball valve seat RS 74 X New ball valve seat RS 75 X P/L 2524624 mod to -2 RS 76 X X X X X X X Fluorosilicone diaph. RS 77-1 X X X X X X X X X Two piece nozzle assy RS 78 X P/L 2524712 mod to -8 RS 79 X P/L 2524791 mod to -5 RS 80 X X Mix cont shaft seal mod RS 81 X X Dist needle seat mod RS 82 X P/L 2524359 mod to -9 RS 83-1 X New enrichment jet -58 RS 84 X New AMC bellows 15-895V Page 11
S.B. # INJECTOR MODEL SUBJECT R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S A A A A A A A A A 5 5 1 1 1 1 1 5 5 7 7 1 1 1 1 1 B B 0 0 0 0 0 A A A D 0 0 0 0 0 D D B B E E F B D A A A D D E E 1 2 1 2 D D B 1 1 1 1 D B B D D 1 2 1 1 1 2 1 2 RS 85 X X X X Fuel diaphragm 2541803 RS 86-1 X X Fuel diaphragm 2541801 RS 87 X Fuel diaphragm 2541801 RS 88 X X X X Reference for RS-85 RS 89 X X Fuel diaphragm 2541802 RS 90 X Removal of C.E. spring PRS 91 X Enrich valve setting mod PRS 92 X O-ring contamination PRS 93 X O-ring contamination PRS 94 X 2524347-9 to -10 PRS 95 X 2549038-1 to -2 PRS 96 Flow Divider Rework PRS 97 X X X X X X X X X X X X X X X X RS/RSA Overhaul Periods PRS 98 X X X X X X X Center Body Seals PRS 99 X X X X X X X X X X X X X X X X Unauthorized Parts PRS 100 X X X X Goode Eng. Diaph recall PRS 101 Air Bleed Nozzle Series Nozzle Assembly Recall PRS 102 X X X Unauthorized Parts PRS 103 X X X X Fuel Diaphragm 2541803 PRS 104 X X X X X X X X X X X X X X X X Av-Gas Contamination PRS 105 X X X X X X X Fuel Port Leakage PRS 106 X Recall 2524273-12 7. Small Reciprocating Engine - Service Information Letters: No. Date Rev. Amend;Date Subject 1* 11-30-76 Torque Requirement for Mixture Lever Stop Hold Down Screw, Reduction of 2* 12-21-76 Tooling for Calibration of RSA-7AA1 and RSA-7DA1 NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 12 15-895V
7. Small Reciprocating Engine - Service Information Letters: (Continued) No. Date Rev Amend;Date Subject 3* 2-2-77 Metering Head Split at Idle 4* 1-7-80 Enrichment Valve, RSA-7AA1 and RSA-7DA1 5* 6-30-79 Lubrication of Mixture and Idle Valves 6* 10-5-79 1 Diaphragm Assembly, Inspection 7* 8-15-79 1 New Center Body Seal. (Ref. RS-46, 55, 58, 59, 60 and RS-61) 8* 9-18-79 P/L 2524275-11 Diaphragm Change 9 5-15-80 1 1 Service Limits 2; 10-25-80 3; 5-15-81 4; 7-17-81 5; 5-15-82 6; 3/31/83 10 1-9-80 RSA Center Body vs. Center Body Assembly 11* 1-9-80 RS Service Bulletins 12* 1-9-80 RS Bulletin No. 63 dated 8-1-79 13 2-7-80 RSA Regulator Brass Hex Plug P/N 383493 14 4-10-80 2 Flow Bench Calibration 15* 3-14-80 RS and RSA Mixture Control Stem 16 9-15-87 2 RS and RSA Manual Mixture Control Leakage 17 2-5-82 1 Tooling Change for All Injectors 18 9-1-85 1 Calibration Flow Limits (New) 19 1-31-86 1 Material Change to Flourosilicone 20 6-15-81 1; 1-20-83 AMC Flow Test Specs 21 11-30-85 Hardcoated Aluminum Manual Metering Control Valves 22 9-1-85 1 Identification Plates NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete. 15-895V Page 13
7. Small Reciprocating Engine - Service Information Letters: (Continued) No. Date Rev Amend;Date Subject 23 7-20-83 Replacement Fuel Diaphragms 24 1-15-86 2541801 for Aerobatic Aircraft 25 1-31-86 RSA Regulator Disassembly 26 12-8-86 Inspection Bullet-type Venturies 27 4-29-87 100% Replacement Parts 28 4-4-88 Modification of RSA-7DA1 Air Diaphragm 29 2-15-88 RS/RSA Announcement 30 5-31-88 Publication 31 5-25-89 1 RSA-7AA1 O-ring Contamination 32 6-30-89 RSA-7DA1 O-ring Contamination 33 10-8-90 P/N 2524666 AMC New Flow Test Limits 34 10-22-92 Unathorized Parts In Fuel Injection Systems 35 9-1-94 Alternate Flow Bench Test Fluid MIL-C-7024 Type II 36 11-1-94 RSA-10ED1 Fuel Injection System P/L 2549038-3 37 11-1-94 RSA-10DB1 Fuel Injection System P/L 2549056-2 38 11-1-94 RSA-10AD1 Fuel Injection System P/L 2524175-11 39 11-26-02 2 RSA-5AB1 Fuel Injection System P/L 2524858-5 40 9-1-04 1 RSA-5 Fuel Injection Servo Installation in Updraft Configuration 41 5-5-97 RSA-10DB1 Fuel Injection System P/L 2524275-16 42 7-15-97 RSA-5AB1 Fuel Injection System P/L 2576507-1 thru 3 43 3-31-98 Service Information for RSA-5AD1; P/L 2576522-1 44 9-4-01 1 Service Information for RSA-5AD1; P/L 2576524-2 45 9-14-99 2 Rework Instructions for RSA-5AD1 Fuel Injection Servo Installed on Slingsby T-3A Aircraft 46* 9-22-99 1 2576540-4 Throttle Friction 47 10-22-04 2 Service Information for RSA-10ED1; P/L 2576546-2 NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 14 15-895V
7. Small Reciprocating Engine - Service Information Letters: (Continued) No. Date Rev Amend;Date Subject 48 10-22-04 1 Service Information for RSA-5AD1; P/L 2576536-2 49 1-6-00 Service Information for RSA-5AD1; P/L 2549050-3 50 10-22-04 1 Service Information for RSA-5AD1; P/L 2576544-2 51 1-20-00 Service Information for RSA-5AD1; P/L 2576558-1 52 1-6-00 Service Information for RSA-5AD1; P/L 2576568-1 53 1-6-00 Service Information for RSA-5AD1; P/L 2576538-1 54* 1-28-00 Incorporated into Manual 15-540D 55 1-20-00 Identification and Cure Dating of Rubber Products 56* 9-28-00 2576540-5 Throttle Friction 57 9-22-00 Discrepant 2541564 Mixture Control Valves 58 12-8-00 Idle Speed Screw for RSA-7DA1; P/L 2524624 59 8-15-01 2 2576540-4 and 2576540-5 Throttle Friction 60 8-17-01 2576540-6 Servo - Boost Pump Pressure Interaction 61 9-4-01 Service Information for RSA-5AD1; P/L 2576596-2 62 12-20-01 Overhaul Kits for RSA-5 and RSA-10 Fuel Injection Servos 63 10-22-04 1 Service Information for RSA-10ED1; P/L 2576562-2 64 3-20-02 Service Information for RSA-10ED1; P/L 2576554-2 65 10-22-04 1 Service Information for RSA-5AD1; P/L 2576592-1 66 4-29-02 Optional Idle Valve for RSA-5AD1; P/L 2576596-2 67 11-20-02 Idle Speed and Mixture Adjustments for RSA Fuel Injection Systems 68 8-14-02 Availability of alternate RSA-5 Main Body and Regulator Cover 69 11-21-02 Service Information for RSA-10AD1; P/L 2576566-1 70 11-21-02 Service Information for RSA-5AD1; P/L 2576608-1 NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete. 15-895V Page 15
7. Small Reciprocating Engine - Service Information Letters: (Continued) No. Date Rev Amend;Date Subject 71* 4-8-03 Replaced By SIL RS-48 R1 72 5-27-03 Service Information for RSA-5AD1; P/L 2576586-1 73 6-16-03 Shipping Caps, Plugs, O-Rings, for RS/RSA Components 74 8-2-05 3 Service Information Letter for RSA-10AD1; P/L 2576630-4 75 12-2-04 1 Service Information Letter for RSA-5AD1; P/L 2524450-9 76 11-12-04 Service Information Letter for RSA-7DA1; P/L 2524624-7 77 12-2-04 Service Information Letter for RSA-7DA1; P/L 2576514-1 78 1-6-05 Service Information Letter for RSA-10DB1; P/L 2576542-1 79 1-5-05 Service Information Letter for RSA-5AB1; P/L 2576628-1 80 1-6-05 Service Information Letter for RSA-10 Servos 81 8-2-05 2 Conversion Information for RSA-10AD1; P/L 2576630 82 12-12-06 Cleaning of Contaminated Fuel Injection Systems 83 12-12-06 Service Information Letter for RSA-10AD1; P/L 2524311-10 PAC-1 9-14-06 6 Warranty Repair of Precision Airmotive RSA Fuel Injection Systems and MSA Float Carburetors 8. Fuel Metering - General (Service Information Letters): No. Date Rev Amend;Date Subject 56 * 10-4-72 Cleaning Matched Fuel Metering Assemblies 57 * 2-16-73 Warranty Procedures - Air Diaphragm 2529470 60 * 10-11-76 Analysis of British Naphtha 63 * 12-8-81 Treatment of Cover Assembly 69 * 12-8-86 Use of Non-Certified (Bogus) Parts 70 * 4-1-86 1 TBO of Bendix Fuel Metering Devices (Originally Published as S.E.C. #1) 71 * 12-8-86 Fuel Contamination 72 * 12-8-86 Special Advisory NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 16 15-895V
9. Small Reciprocating Engine - Service Information Letters: (Early Series) No. Date Rev. Subject 1 * 5-1-70 General Introduction to This Series SIL's 2 * 6-4-70 Information on New RSA-10DB2 Parts List 3 * 6-3-70 Information on New RSA-7AA1 Parts List 4 * 6-9-70 Calibration of P/L 2524163 (Piper Navajo) 5 * 9-15-70 Lube of Fuel Diaphragm Stem 6 * 11-9-70 Flow Bench Calibration 7 * 2-10-71 Blue "O" Rings 8 * 2-21-72 Center Body Seals 9 * 3-14-72 Pressurizing Valve Seat (TIO-541 Engine) 10 * 10-29-73 2 New Design Pop-Off Strainers 11 * 1-29-73 Precalibration Adjustment Procedures 12 * 8-8-73 Regulator Adjustment Procedures 13 * 7-19-74 RSA-10ED1 P/L 2524273-5 14 * 10-2-74 Servo Seat Shim (Seat P/N 2529184) 15 * 10-25-74 RSA-10DB1 P/L 2524275-7/8 Calib. Limits 16 * Not Published 17 * 10-21-75 RSA-10AD1 P/L 2524510C Calibration Limits 18 * 10-21-75 Information on RSA-7AA1 Overhaul Manuals 19 * 10-21-75 Information on RSA-5/RSA-10 Overhaul Manuals 20 * 11-26-75 AInformation on RSA-7AA1 Overhaul Manuals 21 * 2-1-79 C RS/RSA Overhaul Manuals Information 22 * 2-1-79 B RSA-5AD1 Manual Mixture Control 23 * 12-16-75 Change P/L 2524633 A to B 24 * 5-6-76 RSA-5AB1 Basic P/L 2524716 NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete 15-895V Page 17
Small Recprocating Engine - Service Information Letters: (Early Series) - (Continued) No. Date Rev. Subject 25 * 6-16-76 Information on "To Be Released" RS-44 Bulletin 26 * 7-1-76 Inspection of Bushing Assy. P/N 2529188 27 * 7-19-76 Fuel Inlet Strainer Plug Rework 28 * 7-15-76 RS-5/10 Overhaul Manual Change 29 * 9-8-76 RSA-7DA1 Modification 30 * 9-21-76 AMC P/N 2524040C Test Spec Change 31 * 9-21-76 RSA-10ED1 Air Diaphragm P/N 2539616 32 * 10-20-76 Identification of P/N 2539616 Air Diaph. 33 * 11-1-76 RSA-10AD1 Test Spec for 2524175 34 * 2-8-77 RSA-10ED1 Overhaul Manual Change 35 * 2-24-77 Replacement of Screw P/N 319-S-354 36 * 3-15-77 Ref. S.I.L. 35 37 * 5-5-77 Change 1 to RS-10FB1 Overhaul Manual 38 * 7-21-77 Revised T.S. for P/L 2524163-7 39 * 2-21-78 1 Use of Alternate Fuel Strainers 40 * 8-8-77 Revised Test Spec for 2524216/262 41 * 2-21-78 1 Revised T.S. for P/L 2524712 42 * 2-21-78 Replacement of Mixture Shaft Bushing 43 * 8-14-78 RSA-5, 7 and 10 - Insp. of Fuel Diaph. 44 * 5-22-79 Revised Assembly Procedure for Lever Assy. NOTE: This series of S.I.L.s discontinued with number 44. These are listed for reference only as they have been made obsolete by superseding bulletins, manual revisions and the current series of RSA S.I.L.s. NOTE: All current Service Information Letters are available in a full set; Form# 15-SILSET. Service Publications indicated by an asterisk (*) are considered obsolete Page 18 15-895V
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 1. MSA Manual Index: Form No. Description Rev; Date Change; Date (1) MSAFSM Maintneance/Overhaul Manual C; 6/23/06 1; 9/14/06 - All Models (2) MSAOH-1* Service Manual and Illustrated MARCH 93 Parts List. Models MA3A, MA3PA, MA3SPA, and MA4SPA. (3) MSAOH-2* Service Manual and Illustrated MARCH 93 Parts List. Modelsl MA4-5 MA4-5AA, MA5, MA6AA. (4) MSAOH-3* Service Manual and Illustrated MARCH 93 Parts List. Model HA, carb assembly numbers A10-5045 and A10-5045-4 only. (5) MSAOH-4* Service Manual and Illustrated MARCH 93 Parts List. Model HA (6) MSATC-1 Installation Troubleshooting Chart 3; 12/3/03 (7) MSATC-2 Carburetor Trouble Shooting Chart 1; 4/30/02 (8) MSAHBK-1 MSA Float Carburetor Handbook and 1; 9/10/02 Trouble shooting Techniques 2. MSA Service Bulletin Index: No. Date Rev Amend Subject #4-59* 2-20-59 Solid Rubber MA 4-5 Floats #7-59* 4-27-59 Aircraft Service Tools-Prices #10-59* 6-1-59 1 Carburertors for Continental #A11-59* 12-1-59 Aircraft Service Tools-Prices #12-59* 9-9-59 Installation of Floats MA4-5 #5-60* 5-16-60 Proper Float Drop Models MA4-5, MA4-5AA And MA-6 Carburetors #8-60* 6-29-60 New Serial Numbering System #9-60* 6-27-60 Up-dating Long-lok features to Eliminate Safetying #10-60* 6-27-60 Long-lok Parts A11-60* Identifying Long-lok Float Valve 15-895V Page 19
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 2. MSA Service Bulletin Index: (Continued) No. Date Rev Amend Subject #12-60* 10-3-60 Cotter Pin Safety Added To Pump Link #13-60* 10-3-60 Servicing The Automatic Altitude Carburetor #15-60* 11-3-60 Up-dating Aircraft Carburetors #16-60* 11-8-60 Factory Standards A17-60* 11-10-60 A18-60* 12-22-60 SB A13-60 Servicing Automatic Altitude Carburetors In Field Seats for MA-4-5 A1-61* 2-20-61 P/N A16-31 Body To Bowl Gasket A2-61* 2/61 Field conversion 10-4025-11 to 10-4025-12 A3-61* 5-24-61 Float Valve And Seat Assemblies A4-61* 6-23-61 Converting 10-4401 to 10-4401-1 A5-61* 10-9-61 Automatic Altitude Bellows Assembly A6-61* 10-25-61 Change To Solid Rubber Float A7-61* 11-24-61 Replacement of Catalog Pages A1-62* 2-19-62 P/N 10-3339 No Longer Available A2-62* 3-25-62 New Float Valve & Seat A3-62* 3-22-62 New Parts Lists/Price Correction A4-62* 4-2-62 Float Bracket Mounting A5-62* 4-4-62 Aircraft Service Tools M-3, M-7 A6-62* 4-9-62 Aircraft Service Tools/Prices A7-62* 4-16-62 Float Bracket Mounting A8-62* 4-24-62 Viton-tipped Float Valve Precautionary Procedures A9-62* 6-14-92 Carburetor Overhaul Frequency A10-62* 6-14-62 A11-62* 7-2-62 Improved Installation Long-lok Field Modification 10-3878 into 10-3878-M Page 20 15-895V
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 2. MSA Service Bulletin Index: (Continued) No. Date Rev Amend Subject A12-62* 11-7-62 Improved Seal Manual Mixture Control A1-63* 1-18-63 New Float Valve Assy A233-606 A2-63* 1-24-63 Economizer Settings A4-63* 10-3-63 Improved Venturi MA4-5 Carbs (A.D. 63-22-03) A5-63* Safety Wire Added To Bowl/Body A6-63* 12-20-63 Float Valve/Mechanical Attachment A1-64* 7-27-92 Positive Retraction Float Valve A2-64* 12-23-92 Changes Condensed Catalog MS-371 A1-65* 7-26-65 AD Admendment 39-91 A2-65 9-2-65 Carburetor replacement of LYC O-540-A1A engine A1-66* 3-2-66 AD 64-27-2 Revision A2-66 3-16-66 Removal Throttle opening spring A3-66* 5-23-66 Replacement Of Main Venturi A1-67* 3-8-67 A29-182 Float Valve Clip A2-67* 8-17-67 Checking Float Clearance A3-67* 10-23-67 M-509 & M-510 Tools-Gages A4-67* 12-8-67 New Throttle Shaft Bushings A5-67 12-18-67 Pump inlet check valve redesign A1-69 11-17-69 Required inspection of drain plugs (A.D. 69-24-03) A1-71 11-15-71 Improved Method Securing Cam Lever A1-73* 2-15-73 Updated Parts Lists/Exploded View A1-76 5-26-76 Carburetor Cleaning A1-78 9/78 Improved Retaining Method Mixture Control Assembly A2-78 10/78 Sealing Pump & Economizer Rods 15-895V Page 21
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 2. MSA Service Bulletin Index: (Continued) No. Date Rev Amend Subject A1-79 2/79 HA-6 P/N A10-5206-1 (A.D. 79-15-02) A2-79 4/79 Possible Carburetor Contamination (A.D. 79-08-06) A1-81 9-20-81 Float Shaft & Bracket Wear A1-82 7/82 HA series Drain Plugs A1-84* 5/84 A Carburetor Floats (Superseded by MSA-1) A1-86* 9-9-86 Time Between Overhaul Periods (Superseded by MSA-3) A1-87 10/87 Carburetor Return And Inspection (A.D. 88-02-04) A1-88 8/88 Possible Loose 62-226 Pins A1-90* A2-90* One Piece Primary & Main Venturi Carburetor Floats MSA-1 11-11-91 1 Composite Float Replacement MSA-2 10-10-95 3 One Piece Venturi (A.D. 98-01-06) MSA-3 11-18-91 1 TBO Periods MSA-4 7-27-92 Consolidated Fuel Systems Service Bulletin CF 1-92 & Airworthiness Directive 92-15-16 MSA-5 10-21-92 Unathorized Parts In Float Carburetors MSA-6 4-6-94 Improved Retaining Method for Mix. Cont. HA-6 (A.D.95-25-04) MSA-7 10-11-94 Carburetor Nozzle Replacement 0-200A engines MSA-8 7-10-95 Carburetor Nozzle Replacement 0-300 or C-145 MSA-9 10-10-95 Carburetor Nozzle Replacement C-75, C-85 & C-90 MSA-10 1-19-96 Casting Flaw MA-4-5 Throttle Bodies. MSA-11 1-31-00 Australian Av-Gas Contamination MSA-12 7-20-06 Complete Revision of Carburetor Maintenance Manual NOTE: All current Service Bulletins are available in a full set; Form# MSA-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete Page 22 15-895V
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 3. MSA Service Information Letter Index: No. Date Rev Amend Subject 8-21-86 * Superseded by 2-25-92 9-15-87 * Superseded by 3-6-92 10-15-90 Availability of Repair Parts 2-25-92 1 Carburetor Parts List Kits 3-6-92 Throttle Shaft Repair Kits 10-21-92 Unauthorized Parts In Float Carburetors 11-01-94 Introduction of Advanced Polymer Floats for HA-6 carburetors MS-1 9-18-96 New Lubricant for HA-6 Pump Linkage Rods MS-2 5-19-97 1 Conversion Information For 10-6035-11 Carburetors MS-3 3-5-98 1 Conversion Information For 10-6030-1 Carburetors MS-4 7-18-02 1 Introduction Of Advanced Polymer Floats For MA Series Carburetors MS-5 1-6-00 Torque Specifications for MA Carburetor Drain Plugs MS-6 3-23-01 New throttle Body to Bowl Screws for Small MA Series Carburetors MS-7 7-20-02 New Throttle Body to Bowl Gasket for Model HA-6 Carburetors MS-8 1-2-03 New Pump Plunger Assy for Model MA-4SPA Carburetors MS-9 6-29-04 New Idle Tube Assembly for Model MA-4-5 Carburetors, Part Numbers 10-3878 & 10-6054 MS-10 7-7-04 New Idle Tube Assembly and Economizer Setting for Model MA-4-5 Carburetors, Part Numbers 10-5193, 10-5288 & 10-6102 MS-11 9-21-04 New Float for Small MA Carburetors MS-12 2-24-06 Poor Idle Cutoff-Fuel Leakage After Shutdown MS-13 8-9-06 1 New Accelerator Pump Discharge Check Valve MS-14 5-10-06 New Float for HA-6 Carburetors 15-895V Page 23
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 3. MSA Service Information Letter Index (Con t): No. DateRev Amend Subject MS-15 9-20-06 1 New Float for Large MA Carburetors PAC-1 9-14-06 6 Warranty Repair of Precision Airmotive RSA Fuel Injection Systems and MSA Float Carburetors NOTE: All current Service Bulletins are available in a full set; Form# MSA-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 24 15-895V
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS 4. CARBURETOR SERVICE BULLETIN APPLICATION TABLE S.B. # CARBURETOR MODEL SUBJECT M M M M M M M M M M H A A A A A A A A A A A 3 3 3 4 4 4 5 5 6 6 6 A P S S - - A A A P P 5 5 A A A A A A #4-59* X Solid Rubber MA4-5 Floats #7-59* X X X X X X X X X X Aircraft Service Tools/Prices #10-59* X X Carburetors for Continental #11-59* X X X X X X X X X X Aircraft Service Tools/Prices #12-59* X Installation of A30-629 MA4-5 #5-60* X X X Proper float drop #8-60* X X X X X X X X X X New Serial Numbering System #9-60* X X X X X X X X X X Up-dating Long-lok Features #10-60* X X X X X X X X X X Long-lok Parts A11-60* X X X X X X X X X X Identify Long-lok Float Valve #12-60* X X X X X X Cotter Pin Safety #13-60* X X Servicing Automatic Altitude #15-60* X X X X X X X X X X Up-dating Aircraft Carburetors #16-60* X X X X X X X X X X Factory Standards A17-60* X X Automatic Altitude in Field A18-60* X X X X Shaft Seal Inspection A1-61* X X X Body to Bowl Gasket A2-61* X 10-4025-12 Field Conversion A3-61* X X X X X X X X X X Float Valve & Seat Assy A4-61* X 10-4401-1 Field Conversion A5-61* X 10-3847 Bellows Change A6-61* X X X X Change to Solid Rubber Float A7-61* X Replacement of Catalog Pages A1-62* 10-3339 no longer available A1-69* X X X X X X X X X Required inspection of plugs A2-62* X X X X New Float Valve & Seat A3-62* X New Parts List/Prices A4-62* X X X X X X X X X X Float Bracket Mounting A5-62* X X X X X X X X X Aircraft Service Tool M3, M7 A6-62* X X X X X X X X X X Aircraft Service Tools/Prices NOTE: All current Service Bulletins are available in a full set; Form# MSA-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. 15-895V Page 25
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS S.B. # CARBURETOR MODEL SUBJECT M M M M M M M M M M H A A A A A A A A A A A 3 3 3 4 4 4 5 5 6 6 6 A P S S - - A A A P P 5 5 A A A A A A A7-62* X X X X X X X X X X Float Mounting Bracket A8-62* X X X X X X X X X X Viton-tipped Float Valve A9-62* X X X X X X X X X X Frequency Carburetor Overhaul A10-62* X X X X X X X X X X Improved Installation Long-lok A11-62* X 10-3878-M Field Modification A12-62* X X X X Seal Manual Mixture Control A1-63* X X X X New Float Valve Assy 233-606 A2-63* X X X X Economizer Settings A4-63* X X Improved Venturi MA4-5 A5-63* X X X X X X X X X X Bowl & Body Safety Wire A6-63* X X X X Float Valve/Mechanical Attach A1-64* X X X X Pos. Retraction Float/Valve A2-64* X Catalog Changes MS-371 A1-65* X X X AD Admendment 39-91 A2-65* X Carb Replacement Lycoming 0-540-A1A engine A1-66* X X X AD 64-27-2 Revision A2-66* X X Throttle Spring Removal A3-66* X X X X X Replacement of Main Venturi A1-67* X X X A29-182 Float Valve Clip A2-67* X X X X X X X X Checking Float Clearance A3-67* X X X X X X X X X X M-509 & M-510 Tools & Gages A4-67* X X X X Throttle Shaft Bushings A5-67 X X X X Pump Inlet Check Valve Redesign A1-71 X Method Securing Cam Lever A1-73* X X X X X X X X X X X Parts List/Exploded View NOTE: All current Service Bulletins are available in a full set; Form# MSA-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. Page 26 15-895V
INDEX OF MANUALS, BULLETINS AND SERVICE INFORMATION LETTERS FOR MSA FLOAT CARBURETORS S.B. # CARBURETOR MODEL SUBJECT M M M M M M M M M M H A A A A A A A A A A A 3 3 3 4 4 4 5 5 6 6 6 A P S S - - A A A P P 5 5 A A A A A A A1-76 X X X X X X X X X X X Carburetor Cleaning A1-78 X Retaining Method Mix. Control A2-78 X Sealing Pump & Economizer Rods A1-79 X HA-6 P/N A10-5206-1 A2-79 X Possible Carb Contamination A1-81 X Float Shaft & Bracket Wear A1-84* X X X X X X X X X X X Carburetor Floats A1-84A* X X X X X X X X X X X Carburetor Floats A1-86* X X X X X X X X X X X TBO Periods A1-87 X Carb Return and Inspection A1-88 X X X X X X Possible Loose 62-226 Pins A1-90* X X X X Primary & Main Venturi A2-90* X X X X X X X X X X X Carburetor Floats MSA-1 X X X X X X X X X X X Composite Float Replacement MSA-2 X X X X One Piece Venturi MSA-3 X X X X X X X X X X X Time Between Overhaul MSA-4 X X X X Consolidated Fuel Systems SB MSA-5 X X X X X X X X X X X Unauthorized Parts MSA-6 X Retaining Method Mix Cont MSA-7 X Nozzle Replacement, O-200 MSA-8 X Nozzle Replacement, O-300 C-145 MSA-9 X Nozzle Replacement, C-75, C-85, C-90 MSA-10 X Casting Flaw, MA-4-5 MSA-11 X X X X X X X X X X X Av-Gas Contamination MSA-12 X X X X X X X X X X X Complete Revision of Carburetor Maintenance Manual NOTE: All current Service Bulletins are available in a full set; Form# MSA-SBSET. Service Publications indicated by an asterisk (*) are considered obsolete. 15-895V Page 27