SERVICE BULLETIN. The equivalent of this service bulletin has been incorporated on production airplanes and On. REASON

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Citation TITLE SERVICE BULLETIN SB560XL-73-02 ENGINE FUEL AND CONTROL - TRANSMITTAL OF PRATT & WHITNEY CANADA SERVICE BULLETIN PW500-72-30290 TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL -

1 Citation TITLE SERVICE BULLETIN SB560XL ENGINE FUEL AND CONTROL - TRANSMITTAL OF PRATT & WHITNEY CANADA SERVICE BULLETIN PW TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF EFFECTIVITY MODEL SERIAL NUMBERS 560XL (Excel) thru XL (XLS) thru The equivalent of this service bulletin has been incorporated on production airplanes and On. REASON Corrects the flameout condition when the engine operating mode is switched from auto to manual below 70% N2. DESCRIPTION This service bulletin transmits Pratt & Whitney Canada Service Bulletin PW , Revision 2 which installs a new hydromechanical fuel control unit. COMPLIANCE INFORMATIONAL. This service bulletin is for informational purposes only. A service bulletin published by Cessna Aircraft Company may be recorded as completed in an aircraft log only when the following requirements are satisfied: 1) The mechanic must complete all of the instructions in the service bulletin, including the intent therein. 2) The mechanic must correctly use and install all applicable parts supplied with the service bulletin kit. Only with written authorization from Cessna Aircraft Company can substitute parts or rebuilt parts be used to replace new parts. 3) The mechanic or airplane owner must use the technical data in the service bulletin only as approved and published. 4) The mechanic or airplane owner must apply the information in the service bulletin only to aircraft serial numbers identified in the Effectivity section of the bulletin. 5) The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations. No individual or corporate organization other than Cessna Aircraft Company is authorized to make or apply any changes to a Cessna-issued service bulletin, service letter, or flight manual supplement without prior written consent from Cessna Aircraft Company. Cessna Aircraft Company is not responsible for the quality of maintenance performed to comply with this document, unless the maintenance is accomplished at a Cessna-owned Citation Service Center. FLIGHT CREW OPERATIONS Refer to the attached Flight Crew Operation Summary. Jul 26/ XL Page 1 of 3 Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, KS 67277, U.S.A , Fax COPYRIGHT 2006

2 Citation APPROVAL SERVICE BULLETIN SB560XL FAA approval has been obtained on technical data in this publication that affects airplane type design. This information shall be considered an amendment to the Cessna Manufacturer's Maintenance Manual and should be completed within the scheduled time period. MANPOWER WORK PHASE MAN-HOURS Modification * MATERIAL - Cost and Availability NOTE: Refer to the attached Pratt & Whitney Canada Service Bulletin PW for the needed parts. * Refer to the attached Service Bulletin Supplemental Data sheet for man-hours, material cost and availability, and warranty information. CHANGE IN WEIGHT AND BALANCE Negligible REFERENCES Cessna Model 560XL Citation Excel FAA Approved Airplane Flight Manual (56XFM) Cessna Model 560XL Citation XLS FAA Approved Airplane Flight Manual (56XFMA) Pratt & Whitney Canada Service Bulletin PW Pratt & Whitney Canada CSPN PUBLICATIONS AFFECTED None ACCOMPLISHMENT INSTRUCTIONS 1. Prepare the airplane for maintenance. A. Make sure that all switches are in the OFF/NORM position. B. Disconnect electrical power from the airplane. (1) Disconnect the airplane battery. (2) Disconnect external electrical power. C. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" writtenonthem. 2. Do the attached Pratt & Whitney Canada Service Bulletin PW on both engines. 3. Update the FAA Approved Airplane Flight Manual. NOTE: The new configuration codes can not be used until P&WC Service Bulletin PW has been accomplished on both engines. A. (Airplanes thru that are using 56XFM Revision 12 or later.) Make sure that the pilots are aware to use Configuration Code BC, BE or BG as applicable. B. (Airplanes thru that are using 56XFMA Revision 2 or later.) Make sure that the pilots are aware to use Configuration Code AB. Jul 26/ XL Page 2

3 Citation SERVICE BULLETIN SB560XL Make sure that the Flight Crew Operations Summary included with this service bulletin is given to the crew to inform them of the operational changes resulting from incorporation of this service bulletin. 5. Record that this service bulletin has been completed. A. Complete a Maintenance Transaction Report. B. Put a copy of the completed Maintenance Transaction Report in the airplane logbook. C. Send a copy of the completed Maintenance Transaction Report to: CESCOM, PO Box 7706, Wichita, KS MATERIAL INFORMATION NOTE: There are no Cessna provided parts required for the completion of this service bulletin. Refer to the attached Pratt & Whitney Canada Service Bulletin PW for the needed parts. Jul 26/ XL Page 3

5 Citation ATTACHMENT SB560XL FLIGHT CREW OPERATIONS SUMMARY This summary provides additional information for the flight crew regarding operational changes as a result of accomplishment of this service bulletin. Please remove this summary from the service bulletin and give it to the flight crew. This summary is informational only and does not supersede any information in the FAA Approved Airplane Flight Manual. The completion of Pratt & Whitney Canada Service Bulletin PW will correct the flameout condition that occurs when the engine is decelerated below 70% N2. The transition from electronic engine control mode to manual mode causes a sudden drop in fuel pressure. The drop in pressure causes the fuel pressure to be less than the deceleration minimum fuel flow limit. The new hydromechanical fuel control unit has improved internal sealing which eliminates the pressure drop when transitioning between auto and manual modes.

7 Citation TITLE SERVICE BULLETIN SUPPLEMENTAL DATA SB560XL ENGINE FUEL AND CONTROL - TRANSMITTAL OF PRATT & WHITNEY CANADA SERVICE BULLETIN PW TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF EFFECTIVITY MODEL SERIAL NUMBERS 560XL (Excel) thru XL (XLS) thru The equivalent of this service bulletin has been incorporated on production airplanes and On. MANPOWER WORK PHASE MAN-HOURS Modification Refer to P&WC CSPN MATERIAL - Cost and Availability NOTE: Refer to the attached Pratt & Whitney Canada Service Bulletin PW for the needed parts. * Please contact Citation Parts Distribution for current cost and availability of parts listed in this service bulletin. Phone at (Domestic) or (International). Send to: citationparts@cessna.textron.com or telefax at Based on availability and lead times, parts may require advanced scheduling. In cases where the required part(s) are available as exchange, order the exchange part and, upon completion, expedite the return of the removed core to avoid return penalties. Contact the Citation Parts Distribution Sales Desk for availability of exchange parts. Jul 27/ XL Page 1 of 1 Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, KS 67277, U.S.A , Fax COPYRIGHT 2006

9 BULLETIN INDEX LOCATOR TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF Compliance: CATEGORY 5 PRATT & WHITNEY CANADA SERVICE BULLETIN P&WC S.B. No R2 MODEL APPLICATION PW545A, PW545B Summary: There can be an engine flame out in the operation range of 60% to 70% N2 (High Pressure Compressor Rotor Speed) during the transfer from the engine electronic control mode to the manual mode. This is because of a sudden drop of the fuel flow below the minimum deceleration flow limit. Replace the HFC unit with a new one that has a better fuel flow deceleration. Feb 23/2005 Revision No. 2: Dec 05/2005 PW Cover Sheet 24-Hour Global Service USA & CANADA Other HELP DESK International... (IAC*) Fax Toll free where available (SIL GEN-027) * International Access Code Web Site...

11 Pratt & Whitney Canada Corp. 1000, Marie-Victorin Longueuil, Québec, Canada J4G 1A1 Tél December 2005 P&WC S.B. No R2 REVISION TRANSMITTAL SHEET TURBOFAN ENGINE MODEL PW500 SUBJECT: Pratt & Whitney Canada Service Bulletin No. PW , Rev. No. 2, dated Dec 05/2005 (P&WC S.B. No R2) HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF Replace your existing copy of this service bulletin with the attached revised bulletin. Destroy the superseded copy. Please retain this Revision Transmittal Sheet with the revised bulletin. SUMMARY: This revision is issued to: v Delete the statement that this service bulletin must be done on both engines of the aircraft at the same time. EFFECT OF REVISION ON PRIOR ACCOMPLISHMENT: None. NOTE: A black bar in the left margin indicates a change in that line of text or figure. REVISION HISTORY: Original Issue: Feb 23/2005 Revision No. 1: Sep 16/2005 Revision No. 2: Dec 05/2005

13 PRATT & WHITNEY CANADA SERVICE BULLETIN P&WC S.B. No R2 TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF 1. Planning Information A. Effectivity PW545A Engines which are before and include Serial No. PCE-DB0763 PW545B Engines which are before and include Serial No. PCE-DD0125 B. Concurrent Requirements None. C. Reason (1) Problem There can be an engine flame out in the operation range of 60% to 70% N2 (High Pressure Compressor Rotor Speed) during the transfer from the engine electronic control mode to the manual mode. (2) Cause There can be a rapid drop of the fuel flow below the minimum deceleration flow limit due to a sudden opening of the leakage paths by the transfer valve. (3) Solution D. Description Replace the hydromechanical fuel control unit with a new one that has a better fuel flow deceleration. The hydromechanical fuel controls is replaced with a new or modified one. E. Compliance CATEGORY 5 - P&WC recommends to do this service bulletin when the engine is disassembled and access is available to the necessary subassembly (i.e. module, accessories, components, or build groups). Do all spare subassemblies. NOTE: DELETED F. Approval D.O.T./D.A.A. approved. G. Weight and Balance None. P&WC No. D5479A, Feb 23/2005 PW Revision No. 2: Dec 05/ Pratt & Whitney Canada Corp. Page 1 of 7 PRINTED IN CANADA

14 P&WC S.B. No R2 PRATT & WHITNEY CANADA SERVICE BULLETIN TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF 1. Planning Information (Cont d) H. Electrical Load Data Not changed. I. Software Accomplishment Summary Not applicable. J. References Applicable PW500 Technical Manuals Hamilton Sundstrand S.B. No. JFC K. Publications Affected Applicable PW500 Technical Manuals L. Interchangeability and Intermixability of Parts Interchangeability - Refer to Para. 2.D. Intermixability - Not applicable. 2. Material Information A. Industry Support Information Not applicable. B. Material - Cost and Availability You can get the procurable parts listed in Para. 2.D. from any Pratt & Whitney Canada Parts Distribution Center. The estimated total cost of new parts needed to replace old parts is $Quote (US, 2005). The new parts are available. C. Manpower Once you have access to the part, an estimate of 5.0 man-hours is required to include this service bulletin at maintenance. Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 2 of 7

15 PRATT & WHITNEY CANADA SERVICE BULLETIN P&WC S.B. No R2 TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF D. Material Necessary for Each Engine The quantity of materials listed in this section is on a per engine basis. Est. Unit List Price New P/N Keyword Old P/N Qty ($US, 2005) Instructions Disposition For PW545A Engines: Fuel Control, Hydromechanical Supplier Code: P&WC P/N 30J (A)(C) Fuel Control, Hydromechanical Supplier Code: P&WC P/N 30J For PW545B Engines: Fuel Control, Hydromechanical Supplier Code: P&WC P/N 30J Fuel Control, Hydromechanical Supplier Code: P&WC P/N 30J Quote (A)(B) (A)(C) Quote (A)(B) (A) ONE WAY INTERCHANGEABLE - (ATA 200 Explanation Code 01): The old part can only replace the old part; the new part can replace the old and the new part. (B) To get the new part it is possible to make a modification to the old part, or you can get the new part from any Pratt & Whitney Canada Distribution Center. Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 3 of 7

16 P&WC S.B. No R2 PRATT & WHITNEY CANADA SERVICE BULLETIN TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF New P/N Keyword Old P/N Qty (C) Send the old serviceable part for modification to: Hamilton Sundstrand Dock W One Hamilton Road Windsor Locks, CT USA or ACS - Accessories Services 333 rue D Auvergne Longueuil, Quebec Canada J4H 3Y3 Est. Unit List Price ($US, 2005) Instructions Disposition E. Reidentified Parts The following list of parts can be reworked: OLD P/N NEW P/N F. Tooling - Price and Availability Not applicable. 3. Accomplishment Instructions A. Remove the parts listed under Old P/N in Para. 2.D., Material Information. Refer to the instructions in the applicable Overhaul Manual (Ref. Chapter ) or Maintenance Manual (Ref. Chapter ). B. Send the old serviceable hydromechanical fuel control for modification (Ref. Para. 2.D). C. Install the parts listed under New P/N in Para. 2.D., Material Information. Refer to the instructions in the applicable Overhaul Manual (Ref. Chapter ) or Maintenance Manual (Ref. Chapter ). D. Write accomplishment of P&WC S.B. No in the engine logbook. 4. Appendix A. Refer to Figures 1 and 2 for the parts progression of the hydromechanical fuel control. Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 4 of 7

17 PRATT & WHITNEY CANADA SERVICE BULLETIN P&WC S.B. No R2 TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF BASIC (P/N 30J ) PW545A ENGINES SB30054 (P/N 30J ) Various Changes See SB30054 CC 3 PRC SB30087 (P/N 30J ) Bleed Orifice Check Valve More Resistant to Contamination CC 5 PRC SB30079 (P/N 30J ) Hardcoat Finish on P.R.V. Bore CC 8 PRC SB30087 (P/N 30J ) Bleed Orifice Check Valve More Resistant to Contamination CC 5 PRC SB30080 (P/N 30J ) Increased Air Flow L.P.T. Module CC 3 PRC SB30087 (P/N 30J ) Bleed Orifice Check Valve More Resistant to Contamination CC 5 PRC SB30277 SEE SHEET SB30272 (P/N 30J ) One Piece Steel P.R.V. CC 6 PRC 02 NOTE: (P/N ) is the P&WC Part Number SEE SHEET 2 C96926 PW545A Hydromechanical Fuel Control - Parts Progression of Figure 1 (Sheet 1 of 2) Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 5 of 7

18 P&WC S.B. No R2 PRATT & WHITNEY CANADA SERVICE BULLETIN TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF FROM SHEET SB SB30277 (P/N 30J ) New Droop Valve Bracket Seal CC 5 PRC SB30279 (P/N 30J ) Stainless Steel Regenerative Wheel CC 5 PRC SB30290 (P/N 30J ) Better Deceleration Fuel Flow CC 5 PRC 02 NOTE: (P/N ) is the P&WC Part Number C PW545A Hydromechanical Fuel Control - Parts Progression of Figure 1 (Sheet 2) Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 6 of 7

19 PRATT & WHITNEY CANADA SERVICE BULLETIN P&WC S.B. No R2 TURBOFAN ENGINE HYDROMECHANICAL FUEL CONTROL - REPLACEMENT/MODIFICATION OF (P/N 30J ) Basic SB30279 (P/N 30J ) Stainless Steel Regenerative Wheel CC 5 PRC SB30290 (P/N 30J ) Better Deceleration Fuel Flow CC 5 PRC 02 PW545B Hydromechanical Fuel Control - Parts Progression of Figure 2 C Feb 23/2005 PW Revision No. 2: Dec 05/2005 Page 7 of 7

21 A01XXX NO Page 1 of 3 COMMERCIAL SUPPORT PROGRAM NOTIFICATION PROGRAM NAME: PW545A Fuel Control Unit (FCU) Upgrade. SPECIAL PROGRAM ALLOWANCE APPLICABILITY: PW545A engines in accordance with the Pratt & Whitney Canada Corp. (P&WC) Service Bulletin (SB) 30272, 30277,30279, PROGRAM DESCRIPTION: This Commercial Support Program (CSP) offers assistance to the Operator to comply with SB 30272, 30277,30279, PW500 FCU Upgrade. PROGRAM DURATION: This program will terminate on 31 December REFERENCE DOCUMENT: P&WC SB Steel Pressure Regulating Valve for contamination resistance P&WC SB P&WC SB P&WC SB Improved droop valve seal for cold start operation Steel Regenerative wheel for installation impact resistance Transfer Mode Valve change to address the possibility of flameout in the event of switching from auto to manual mode at low N2 speed. COVERAGE: This CSP offers: Exchange parts and consumables listed under section 2D of the REFERENCE DOCUMENT are available through this Commercial Support Program at a fixed price to the operator, depending on engine operating hours. An upgrade exchange price of $18,000* is offered for FCU with up to 2,500 hours where the FCU is exchanged for the purpose of incorporating the modifications. An upgrade exchange price of $25,000* is offered for FCU with up to 5,000 hours where the FCU is exchanged for the purpose of incorporating the modifications. Price is pro-rated between 2,500 5, 000 hours using the following formula: Price = $18,000* +($2.80* x (FCU total time 2,500)), to a maximum of $25,000*. ( if FCU total time is not available, consider it is above 5000 hrs). Operators who elect to participate in this program at an on-wing maintenance event (e.g. Hot Section Inspection) are eligible to claim for 10 hour R&I labor allowance. * 2005 $USD Prices, subject to escalation. Note: Units repaired under first run warranty will receive the upgrade modifications at no additional charge. Date Issued: 23 December, 2005 QUESTIONS OR CONCERNS MAY BE ADDRESSED TO THE: MANAGER, WARRANTY ADMINISTRATION TEL. (450) , FAX (450) IN THE EVENT OF A CONFLICT BETWEEN THE PROVISIONS OF THIS DOCUMENT AND OTHER NOTIFICATIONS, THIS NOTIFICATION SHALL PREVAIL.

22 Commercial Support Program No Page 2 of 3 ORDER INSTRUCTIONS: For Operators To obtain an exchange FCU, the Operator must submit a Purchase Order 30 days prior to the date required to the address listed under "REWORK FACILITY. Exchange units will be shipped to the participating maintenance facility specified on the Purchase Order. Please ensure that the engine model, engine serial number, engine hours/cycles (TTSN/TCSN/TTSO) and this program number are clearly indicated on all documents submitted. Please be advised that this CSP does not cover charges for repair of damage caused by improper operation, improper maintenance, mishandling, induced failure or accident. The Operator will be contacted by the rework facility with an estimate of any additional charges should this occur, and the credit will be adjusted accordingly. Should any additional charges be eligible for warranty consideration, a warranty claim may be filed with P&WC Warranty Administration with the supporting documents. P&WC owned or affiliated Service Centers (Shop) If the Operator decides to have this CSP incorporated by a Shop, it is the Shop's responsibility to verify with the Operator that the part covered by this CSP has not already been ordered by the Operator. To obtain an exchange FCU, submit a Purchase Order 30 days prior to the date required to the address listed under "REWORK FACILITY. CLAIM INSTRUCTIONS: For Operators A warranty claim must be submitted through the source of supply (P&WC PDC or P&WC Warranty Administration) for: - The 10 hours R&I labour allowance. For Shops A warranty claim must be submitted through P&WC Warranty Administration for: (HSI & UR removals only) - The 10 hours R&I labour allowance. - The 2 hours of Administration fee Please ensure that the engine model, engine serial number, hours/cycles (TTSN/TCSN/TTSO) and this CSP number are clearly indicated on all documents submitted. NOTE: Failure to comply with the preceding instructions may delay or void the warranty claim and/or the offered CSP coverage. P&WC may refuse any claim for coverage under this program that is received more than one hundred and eighty (180) days after compliance with this program. Date Issued: 23 December, 2005

23 Commercial Support Program No Page 3 of 3 REWORK FACILITIES: Removed part is to be shipped to the following address. Please ensure that the engine model, engine serial number, engine hours/cycles (TTSN/TCSN/TTSO) and this CSP number are clearly indicated on all documents submitted to: Pratt & Whitney Component Solutions (PWCS) Citation Parts Distribution 4905 Stariha Dr SW Boulevard Muskegon, Michigan Wichita, Kansas U.S.A. U.S.A. Att. David Christopher Att. Jeff Webber Ref.: CSP no Ref.: CSP no Note: Failure to return the exchange core may result in the issuance of an invoice for the cost of the exchange unit. Core units are to be returned within 10 days of receipt of the exchange unit. Failure to comply may result in issuance of an invoice for $ USD per day for each day exceeding the 10 day return period. Date Issued: 23 December, 2005

ALERT SERVICE LETTER ASL

Citation TITLE ALERT SERVICE LETTER ASL550-72-29 ENGINE - TRANSMITTAL OF P&WC SERVICE DOCUMENTS - INTERCOMPRESSOR BLEED VALVE/SERVO-VALVE-INSPECTION/REPLACEMENT OF EFFECTIVITY MODEL SERIAL NUMBERS 550