BELL206 DGCANO Subject Reference Compliance Applicability INSPECTION OF ENGINE DROOP COMPENSTION & MODIFICATION THEREOF

Transcription

1 DGCA/BELL 206/1 DGCA/BELL 206/2 DGCA/BELL 206/3 DGCA/BELL 206/4 DGCA/BELL 206/5 DGCA/BELL 206/6 INSPECTION OF ENGINE DROOP COMPENSTION & MODIFICATION THEREOF INSPECTION & MODIFICATION OF THE FORWARD ENGINE MOUNT ATTACHMENT INSPECTION AND SAFETY WIRING OF EXHAUST STACK CLAMP PT.NO.N3657 INSPECTION OF CYCLIC CONTROL SYSTEM LEVER ASSEMBLE AND ADDITION OF SHIELD AUGUSTA-BELL S.B.NO BELL S.B.NO.206 A-1 AUGUSTA-BELL S.B.NO.206-7BELL S.B.NO.206 A-4 AUGUSTA BELL S.B.NO.206-3BELL S.B.NO.206 AUGUSTA BELL S.B.NO BELL S.B.NO.206 A2 MODIFICATION OF TAIL ROTOR PEDAL CONTROL AUGUSTA BELL S.B.NO.206 A-4 INSPECTION AND REPLACEMENT OF SWAGED ENDS OF CYCLE AND COLLECTIVE CONTROL TUBES AUGUSTA BELL S.B.NO AND BELL S.B.NO.206-A-6 DGCA/BELL 206/7 REWORK OF BELLCRANK P/N AUGUSTA BELL S.B.NO AND BELL SERVICE LETTER NO.206-A- 27 DGCA/BELL 206/8 DGCA/BELL 206/9 REPLACEMENT OF FUEL SYSTEM CHECK VALVE P/N 446-4AD-6 REPLACEMENT OF EXHAUST STOCK CLAMP P/N N.3657 AUGUST BELL S.B.NO FAA.AD. NO

2 DGCA/BELL 206/10 DGCA/BELL 206/11 DGCA/BELL 206/12 DGCA/BELL 206/13 DGCA/BELL 206/14 DGCA/BELL 206/15 DGCA/BELL 206/16 DGCA/BELL 206/17 DGCA/BELL 206/18 PROVISION FOR ADJUSTMENTS OF LOWER RIM LIMITATION ENGINE GOVERN INSPECTION OF MAIN ROTOR BLADES RETENTION BOLT P/N INSECTION OF MAGNESIUM TAIL BOOM PT.NO A&3 INTERIM OPERATING RESTRICTION ON ALLISON ENGINE INSPECTION OF TAIL ROTOR CONTROL TUBE ASSYM FOR WEAR INSPECTION AND REPLACEMENT OF TRANSMISSION SPIDER PT INSPECTION OF PITCH LINK ASSY P/N FOR DEFORMATION OF ENDS DUE OVER TORQUING INSPECTION OF TRANSMISSION AMOUNT SPINDLE P/N OR 3 BELL SERVICE LETTER NO.206-A-7 AUGUST BELL S.B.NO ITALIAN A.D.NO.68/167/AB2 06A- 13 ITALIAN A.D.NO.68/167/AB2 06A- 14 ITALIAN A.D.NO /AB2 06-A-17 AUGUSTA BELL S.B.NO.BT B.T ,DATED B.T ,DT A.D. NO.70-64/AB/206-A- 16 AUGUSTA TECHNICAL BULLETIN NO.B.T AUGUSTA BELL TECHNICAL BULLETIN NO.BT INSPECTION AND REPLACEMENT OF CYCLIC AUGUSTA BELL CONTROL BELL CRANK SUPPORT ASSY.PT.NO.206- S.B.NO &6

3 DGCA/BELL 206/19 DGCA/BELL 206/20 DGCA/BELL 206/21 DGCA/BELL 206/22 DGCA/BELL 206/23 DGCA/BELL 206/24 DGCA/BELL 206/25 DGCA/BELL 206/26 ADDITION OF EXHAUST STACK CLIPS PT.NO REPLACEMENT OF ROUND HEAD SCREWS TO FLUSH HEAD SCREW IN LEFT AND RIGHT CONSOLE-ACCESS PANEL LOWER GEAR BOX AND OIL OUTLET MAGNETIC PLUGS ONE TIME INSPECTION OF TAIL ROTOR GEAR BOX CASE FOR CRACKS AND BALANCE CORROSION PROTECTION OF MAIN ROTOR BLADE BUTT END INSPECTION OF MAST BOOT FOR BROKEN OR SEPARATED SIRE RINGS INSTALLATION OF IMPROVED FIREWELL SEAL P/N REPLACEMENT OF EXISTING SOLID VOLTAGE REGULATOR WITH CARBON PILE TYPE DGCA/BELL 206/27 INSTALLATION WITH EBOXYLITE 814 COMPRESSOR PC FILTER AUGUSTA BELL S.B.NO AUGUSTA BELL S.B.NO ITALIAN AD NO /ALLISON AUGUSTA BELL S.B.NO AUGUSTA BELL S.B.NO AUGUSTA BELL S.B.NO TECH.BUL NO (BELL S.L.NO REV.A) FAA-AD TECH.B ASL-101-ISSUE 2

4 DGCA/BELL 206/28 DGCA/BELL 206/29 TO PROVIDE MORE POSITIVE METHOD OF CHIL DETECTION INSPECTION OF MAIN ROATOR BLADES FOR CRACKS AND CORROSION BELL S.B.NO.206-A-17 BELLETIN TECHNICO NO.BT (REV.B.DT ) DGCA/BELL 206/30 GROUNDING OF COLLECTIVE LEVER AUGUSTA BELLETIN NO.BT 206-A-50 DGCA/BELL 206/31 DGCA/BELL 206/32 DGCA/BELL 206/33 INSTALLATION OF A PLACARD PROHIBITING THE FLIGHT OF HELICOPTER IN FALLING/BLOWING SHOW TO DETECT AND PREVENT POSSIBLE CORROSION AND FATIGUE CRACKS IN THE MAIN ROTOR BLADE SPAR INSPECTION OF THE STRAP, P/N AND24 DGCA/BELL 206/34 TO DETECT CRACKS IN THE STRAPS P/N AND 24 AND MATING SUPPORT FITTING P/N &3 DGCA/BELL 206/35 INSTALLATION OF MAIN ROTOR RETENTION STRAP FITTINGS DGCA/BELL 206/36 INSPECTION OF VERTICAL FIN P/N , -5, -7 AND -9 FAA.AD , DATED REGISTRO AERONAUTICO ITALIAN A.D FAA.AD DATED BELL S.B.NO , REV.A DATED FAA.AD FAA.AD PRESCRIZIONE D1 AERONAUTICLITY BELLETIN TECHNICO NO.B.T REV.B, REGIST AERONAUTICS ITALION A.D.NO.73-51

5 DGCA/BELL 206/37 INSPECTION OF IDLER ASSEMBLY P/N DGCA/BELL 206/38 INSPECTION OF HEATER FUEL LINE P/N FOR EVIDENCE OF CHAFING DGCA/BELL 206/39 DGCA/BELL 206/40 DGCA/BELL 206/41 DGCA/BELL 206/42 INSPECTION AND REPLACEMENT OF PYLON SUPPORT LINK ONE TIME INSPECTION OF HYDRAULIC SERVO ACTUATOR SERVO VALVE DRIVE LOCKNUT INSPECTIONOF TAILBOOM SKIN SPLICE RIVETS IN AREA FROM ST N.3000(7620) TO 341 (8661,4) ON L.H. SIDE INSPECTIONAND REPLACEMENT OF HYDRAULIC ACTUATOR PISTON ASSEMBLY P/N DGCA/BELL 206/43 MAIN ROTOR PITCH LINK TUBES P/N AND INSPECTION OF DGCA/BELL 206/44 SWASH PLATE BEARING P/N INSPECTION OF DGCA/BELL 206/45 RECTIVATION OF ROTOR BRAKE SYSTEM MAGNETIC PARTICLE INSPECTION OF ROTOR BRAKE ASSEMBLY P/N AND REWORK OF DRILL HOLES IN DISC SLOTS (ROTOR BRAKE KIT P/N ) ITALIAN A.D.NO.73-3.S.B.NO BELLETINO TECHNICO NO.BT B.T , REV.A BULLETINO TECHNICO NO.BT , DT. MAY,26,73 RAI A.D BOLLETINO TECHINO NO.BT REV.8 RAI.A.D.NO REV.2 BOLLETINO TECHNICO NO.BT , REV.A REV.AD.NO F.A.A.AD DT BOLLETINO TECHNICO NO.BT RAI.AD RAI.AD.NO B.T. NO , DATED REV.1, DATED

6 DGCA/BELL 206/46 INSPECTION OF HEATER FUEL LINE P/N FOR INTERFERENCE WITH AIRPLANE AT STN.3429 W/L 1618,B/L 305 MM DGCA/BELL 206/47 DGCA/BELL 206/48 DGCA/BELL 206/49 DGCA/BELL 206/50 DGCA/BELL 206/51 DGCA/BELL 206/52 DGCA/BELL 206/53 DGCA/BELL 206/54 INSPECTION AND REPLACEMENT OF VERTICAL FIN SUPPORT FORGINGS P/N & 418 BT.NO , DT RAI AD.NO BT.NO RAI A.D SO SPECIFY THE RETIREMENT LIFE FOR MAIN B.T.NO DRAA ROTOR HUB RETENTION STRAP FITTINGS P/N 206- A.D.NO AND PINS P/N TO IMPROVE CORROSION PROTECTION OF MAIN B.T.No ROTOR HUBS P/N AND P/N INSPECTION OF TAIL ROTOR GEAR BOX ASSEMBLY P/N TO ASSURE PROPER INSTALLATION OF TAIL ROTOR SHAFT RETAINING NUT COTTER PIN DELETED INSPECTOR AND REPLACEMENT OF STARTER GENERATOR RETAINING CLAMP 'T' BOLTS INSPECTION OF HORIZONTAL STABILIZER, P/N (ALL DASH NUMBERS) DAILY INSPECTION OF NAS= D BOLTS IN FLIGHT CONTROL SYSTEM B.T.NO B.T.NO REV.B.RAI.A.D. AB , REV.2 B.T REV.C RAI.A.D.NO REV.4 B.T

7 DGCA/BELL 206/55 FALSE FUEL QUANTITY INDICATION AT HIGH AIR SPEED AND VERT1 LINE RAI A.D. A.B ,REV.1 B.T REV.A DGCA/BELL 206/56 REPLACEMENT OF BEARING HING SCREW B.T , REV. A, RAI.A.D.NO DGCA/BELL 206/57 INSPECTION OF PARTICLE SEPERATOR P/N DGCA/BELL 206/58 DEFECTIVE MAIN ROTOR GRIP P/N , S.L.NO.J ,61,75-78, ,06-12,14-40,41,44,-53 DGCA/BELL 206/59 DGCA/BELL 206/60 DGCA/BELL 206/61 DGCA/BELL 206/62 DGCA/BELL 206/63 INSPECTION OF REWORK OF MAIN ROTOR HUV VOKE P/N ,-1,-5,-9, 13 INSPECTIONOF HYDRAULIC SYSTEM AND HYDRAULIC ACTUATORS P/N , -003, - 007, , -013, 015 & P/N , -5, -11, P/N , -7, -9 REPLACEMENT OF CORRODED TUBE ASSEMBLIES O/N AND P/N DUE TO CORROSION INSTALLATION OF HORIZONTAL STABILIZER STOP KIT P/N DELETED BT REV.A.2 RAI.A.D CABLE FROM AUGUSTA BELL DT. SEPTEMBERR, 13, 74 BT RAI.A.D FAA NO BT REV.B, RAI.A.D , REV.2 B.T B.T

8 DGCA/BELL 206/64 REMOVAL OF ROTOR BRAKE DISC B.T DGCA/BELL 206/65 EROSION OF THE PUMP AND RESERVOIR HOUSING (PRESSURE REGULATOR VALVE ASSEMBLY P/N B.T DGCA/BELL 206/66 REPLACEMENT OF CABIN ROOF STRAPS P/N 206- B.T.NO & -24 WITH STRAPS P/N REV.A,R,R.A.I.A.D & /REV.1 DGCA/BELL 206/67 DGCA/BELL 206/68 DGCA/BELL 206/69 DGCA/BELL 206/70 INSPECTION OF THE MAIN ROTOR GRIP ASSEMBLY P/N INSPECTIONOF TRANSMISSION MOUNT SPINDLE P/N OR 3 INSPECTION OF TAIL ROTOR CONTROL TUBE ASSEMBLY P/N INSPECTION OF TAIL ROTOR DRIVE INSTALLATION IN CORPORATING CLAMP TYPE BEARING HANGERS DGCA/BELL 206/71 LIFE IMITATION OF TAIL ROTOR YORE P/N & P/N DGCA/BELL 206/72 INSTALLATION OF EPOXY RESIN COATED FLANGED BUSHING ROTOR HUB PILLOW BLOCKS. P/N INTO MAIN B.T.NO RAI B.T RAI.A.D. AB , REV.1 B.T , REV, A, RAI REV 2 B.T RAI.A.D.A.B B.T & RAI.A.B B.T & FAA

9 DGCA/BELL 206/73 DGCA/BELL 206/74 DGCA/BELL 206/75 DGCA/BELL 206/76 DGCA/BELL 206/77 DGCA/BELL 206/78 DGCA/BELL 206/79 DGCA/BELL 206/80 DGCA/BELL 206/81 INSPECTION OF RIVETS P/N MMS 20600AD SECURING THE UPPER & LOWER HINGS OF PASSENGER DOORS TO FUSELAGE STRUCTURE MANDATORY RETIREMENT OF MAIN ROTOR BLADES P/N INSPECTION/REPLACEMENT OF THE HYDRAULIC SERVE ACTUATOR SUPPORTER ASSEMBLY P/N INSPECTION OF THE MAIN ROTOR BLADES TENSION FOR STRAPS P/N & REDUCTION OF LIFE OF STRAPS INSTALLATION OF TARER WHAHER UNDER HYDRAULIC SERVO ACTUATORS ASSEMBLY P/N 206 TO ASSIGN A NEW RETIREMENT LIFE FOR TENSION TORSION STAPS P/N REPLACEMENT OF STRAPS FITTINGS P/N TO PROVIDE IMPROVED TAIL ROTOR DRIVE SHAFT BEARING WHICH ALLOW RELUBRIFICATION INSPECTION OF OIL COOLER BLOWER IMPELLER P.T.NO REPLACEMENT OF TAIL ROTOR DRIVE SHIFT CKLAMP TYPE HEARING HANGERS WITH SHINES B.T DT BELL.S.B.NO DT BELL S.B.NO A.D BELL S.B BELL.TECH.NO DT F.A.A.A.D B.T REV.A, DT B.T.NO B.T.NO AIRWORTHINESS DIRECTOR NO /AB

10 DGCA/BELL 206/82 DGCA/BELL 206/83 DGCA/BELL 206/84 DGCA/BELL 206/85 DGCA/BELL 206/86 DGCA/BELL 206/87 DGCA/BELL 206/88 DGCA/BELL 206/89 DGCA/BELL 206/90 INSPECTION OF FLIGHT CONTROL LOWER BEARING FOR ADEQUATE STAKE INSPECTION OF SWASH PLATE SUPPORT ASSEMBLY INSPECTION AND RETIREMENT LIFE ON MAIN ROTOR YOKE PT NO BELL ALART S.B.NO INSPECTION INTERVAL OF MAIN INPUT DRIVE SHAFT ASSEMBLY P.T.No INSPECTION AND REPAIR OF LONGERON PT. NO INSPECTION OF TAIL ROTOR BLADE PT NO INSPECTION / REPLACEMENT OF MAIN ROTOR TRUNION PT NO & PT INSPECTION OF TAIL ROTOR GEAR BOX PT.NO TAIL ROTOR CONTROL SYSTEM RIGGING PROCEDURE B.T.NO B.T.NO ASB (BELL) AND BELL ASB AS S.B FAA.AD B.T.NO FAA.AD & B.T.NO B.T.NO B.T.NO B.T.NO

11 DGCA/BELL 206/91 DGCA/BELL 206/92 DGCA/BELL 206/93 DGCA/BELL 206/94 SERVICE LIFE OF MAIN ROTOR TENSION TORSION STRAP ASSEMBLY MODIFICATION OF BULK HEAD FRAME PT.NO TORQUE INSPECTION OF AUGUST BUT PT.NO OR PT.NO RETIREMENT LIFE OF TAIL ROTOR BLADES OT.NO & 7 B.T.NO B.T.NO B.T.NO FAA.AD NO DGCA/BELL 206/95 RETIREMENT LIFE OF MAIN ROTOR TRUMMOR CF DGCA/BELL 206/96 INSPECTION OF HORIZONTAL STABILIZER ASSEMBLIES FAA.AD DGCA/BELL 206/97 INSPECTION OF TAIL ROTOR BLADES FAA.AD.NO & B.T.ALERT S.B.NO DGCA/BELL 206/98 INSPECTIONOF TAIL ROTOR GEARBOX B.T. ALERT S.B.NO DGCA/BELL 206/99 INSPECTION OF ENGINE TO TRANSMISSION RIVERSHAFT P/N R.A.I.A.D.NO /AB ANDAUGUSTA B.T.NO

12 DGCA/BELL 206/100 DGCA/BELL 206/101 DGCA/BELL 206/102 INSPECTION AND PROCESSING OF MAIN ROTOR MAST ASSEMBLY SEAL, P/N AIR INDUCTION TAIRING, INSPECTION OR REMOVAL OF INSPECTION OF TAIL ROTOR FLASH LIP BLICK AREA FOR SERVICEABILITY BELL HELICOPTER ALERT S.B.NO AND RAI.A.D.NO.84/73/AB BOLLETINO TECHNICO NO REV A F.A.A. A.D & R.A.I.A.D.NO.86-24/AB REV 2 BELL ALERT BULLETIN REV B B.T DGCA/BELL 206/103 INSPECTION OF MAIN ROTOR BLOCK FAA.A.D BELL A.S.B. 206L DGCA/BELL 206/104 DGCA/BELL 206/105 INSTALLATTION OF SPRING PIN ASAY IN THE QUICK DISCONNECT OF DUAL CONTROLS P/N ENGINE OIL PRESSURE HOSE ASSEMBLY P/N E000D200 HELICOPTER OF MAIN ROTOR BLADE RETEARNING NUTS P/N WITH NOW METALLIC FEATUR-INSPECTION DGCA/BELL 206/106 MAIN ROTOR BLADE RETARNING NUTS P/N WITH NON METALLIC FEATUR INSPECTION DGCA/BELL 206/107 PILOTS CYCLE CONTROL STIC ASSEMBLY P/N ,-1101 & P/N & CO PILOTS STIC P/N INSPECTION OF B.T.NO & BELL S.B REV.A B.T.NO B.T.NO B.T.NO & BELL A.S.B FAA AD

13 DGCA/BELL 206/108 DGCA/BELL 206/109 DGCA/BELL 206/110 TAIL GEAR FOR ATTACHMENT HOUR INSPECTION OF ALTIMETER, MALFUNCTION OF SETTING MECHANISM INSPECTION OF OIL COOLER BLOWER IMPELLER LEG MOUNTING FOR CRACKS B.T.NO RAI.AD.NO.86-66/A FAA.AD BELL AUGUSTA B.T.NO BELL ALERT S.B.NO DGCA/BELL 206/111 TO PREVENT FAILURE OF THE T/R PITCH LINKS FAA.AD.NO & RAI.AD.NO.87-2 DGCA/BELL 206/112 REPLACEMENT OF MAIN ROTOR MAST ASSEMBLY RAI.A.D.NO & BELL S.B.NO FAA AD.NO DGCA/BELL 206/113 INSPECTION OF THE TAIL ROTOR YOKE ASSEMBLY FAA.AD.NO DGCA/BELL 206/114 DGCA/BELL 206/115 DGCA/BELL 206/116 VISUAL INSPECTION OF MAIN ROTOR SERIAL NUMBER INSPECTION AND REPLACEMENT OF TAIL ROTOR BLADE ASSEMBLIES INSTALLATION OF FLOW RESTRICTES ON EMERGENCY FLOAT SYSTEM FAA.AD.NO R1 BELL ASB AND FAA AD.NO FAA EMERGENCY AD AND FAA.AD R1 FAA.AD

14 DGCA/BELL 206/117 SOLOY ENGINE RPM SENSOR TC.AD.CF DGCA/BELL 206/118 DGCA/BELL 206/119 REMOVAL FROM SERVICE AND REPLACEMENT OF CERTAIN MAIN TRANSMISSION SUNGERARS AND MATING SPUR GEARS. INSPECTION / MODIFICATION OF VERTICAL FIN SUPPORT FAA.AD FAA.AD DGCA/BELL 206/120 TRUNION MASTER SPLINE FAA.AD(PRIORITY) AND BHTI ASB L DGCA/BELL 206/121 DGCA/BELL 206/122 DGCA/BELL 206/123 DGCA/BELL 206/124 DGCA/BELL 206/125 ONE TIME INSPECTION FOR CRAKES IN PORTION OF M/R BLADE TRAILING EDGE & INBOARD TRAINTAP AND REPLACEMENT IF NECESSARY INITIAL AND REPETITIVE INSPECTION OF SWASHPLATE FOR CRACK IN SWASHPLET SUPPORT ANY TO PREVENT MISALIGNMENT OF THE T/R DRIVE SHEFT HANGER BEARING SUPPORT BRACKET TO PREVENT THE FUEL VALVE SWITCH FROM BEING INADVERTEULY PLACED OFF POSITION, WHICH COULD RESULT IN AN ENGINE FAILURE TO PREVENT THE FAILURE OF THE CROSS TUBES AND LOSS OF CONTROL OF HELICOPTER FAA.AD FAA.AD & ASB REV.B FAA.AD FAA.AD CANADIAN AD. CF95-17

15 DGCA/BELL 206/126 DGCA/BELL 206/127R1 DGCA/BELL 206/128 DGCA/BELL 206/129 TO PREVENTING FALSE LOW NATURE INDICATION, WHICH COULD RESULT IN OVERHEATING OF ENGINE TURBINE AND THERMAL FATIGUE DAMAGE TO THE TURBINE WHEEL TO PREVENT FAILURE OF THE TAILBOOM AND LOSS OF CONTROL OF THE HELICOPTER TO PREVENT FATIGUE FAILURE OF THE MAST OR TRUNION TO LIFE LIMITATION OF COLLECTIVE IDLER LINK AND THE COLLECTIVE LEVER CANADIAN AD CF96-13 & FAA AD FAA AD R1 FAA.AD CF BELL DGCA/BELL 206/130 CRACKED TAIL BOOM SKIN CF R4 DGCA/BELL 206/131 DGCA/BELL 206/132 TO PREVENT A POSSIBLE CATASTRAPHIC FAILURE OF THE CROSS TUBE ASSEMBLIES ACCOMPLISH TO ENSURE ADEQUATE CLEARANCE BETWEEN THE COLLECTIVE LEVER IN THE SWASHPLATE OUTER RING CR CF DGCA/BELL 206/133 PARTICLE SEPARATOR / INTAKE DEFLECTOR TC AD CF R1 DGCA/BELL 206/134 CHIP DETECTOR ASSEMBLY TC AD CF

16 DGCA/BELL 206/135R1 THE UNSAFE CONDITION AS FAILURE OF A DRIVESHAFT DUE TO CRACKING OF THE FLEX FRAME ON THE FORWARD END OF THE DRIVESHAFT. THIS CONDITION COULD RESULT IN LOSS OF DRIVE TO THE MAIN ROTOR SYSTEM AND A EMERGENCY FORCED LANDING. FAA AD supersedure FAA AD DGCA/BELL 206/136 TP PREVEENT FAILURE OF THE TAIL ROTOR YOKE FAA AD DGCA/BELL 206/137 TO PREVENT FAILURE OF THE TRUNNION DUE TO FATIGUE CRACKS FAA AD R1 DGCA/BELL 206/138 KAFLEX DRIVE SHAFT TC AD CF R2 DGCA/BELL 206/139 MAGNETIC BRAKE TC AD CF DGCA/BELL 206/140(R3) TAIL ROTOR BLADE TRAILING EDGE SKIN CRACKS FAA AD DGCA/BELL 206/141(R1) FREE WHEEL LUBRICATION TC AD CF (R1) DGCA/BELL 206/142 TAIL ROTOR BLADE TC AD CF

17 DGCA/BELL 206/143 LOW FUEL LEVEL DETECTOR TC AD CF DGCA/BELL 206/144 DOOR HANDLE TC AD CF DGCA/BELL 206/145 FUEL DISTRIBUTION SYSTEM TC AD CF R3 DGCA/BELL 206/146 TORQUE INDICATOR REPLACEMENT TC AD CF DGCA/BELL 206/147 DGCA/BELL 206/148 POWER TURBINE RPM STEADY STATE OPERATION AVOIDANCE INSPECTION OF FORGED VERTICAL STABILIZER SUPPORTS AND VERTICAL STABILIZER DGCA/BELL 206/149(R1) MAIN ROTOR LATCH BOLTS - REMOVAL FROM SERVICE TC AD CF R1 TC AD CF TC AD CF (R1) DGCA/BELL 206/150 TRANSMISSION PYLON SUPPORT SPINDLE TC AD CF R1 DGCA/BELL 206/151 HORIZONTAL STABILIZER----MANUFACTURING FLAWS TC AD CF

18 DGCA/BELL 206/152R1 DGCA/BELL 206/153 POWER TURBINE RPM STEADY STATE OPERATION AVOIDANCE DISC ASSEMBLIES ---- TAIL ROTOR DRIVESHAFT (THOMAS COUPLING) TC AD CF R2 TC AD CF DGCA/BELL 206/154R1 CYCLIC CONTROL LEVER ASSEMBLY INSTALLATION TC AD CF R1 DGCA/BELL 206/155 BEARINGS IN FLIGHT CONTROLS TC AD CF DGCA/BELL 206/156 MAIN ROTOR PITCH HORN BEARING TC AD CF DGCA/BELL 206/157 TAILBOOM ATTACHMENT FITTING TC AD CF DGCA/BELL 206/158 HYDRAULIC SYSTEM TC AD CF DGCA/BELL 206/159 DGCA/BELL 206/160 NON -- CONFORMING TAIL ROTOR DISC ASSEMBLY TO PREVENT LOSS OF A BLADE TIP WEIGHT,LOSS OF A BLADE,AND LOSS OF CONTROL OF THE HELICOPTER TC AD CF FAA AD

19 DGCA/BELL 206/161R2 DGCA/BELL 206/162 DGCA/BELL 206/163 DGCA/BELL 206/164 DGCA/BELL 206/165 DGCA/BELL 206/166 FATIGUE CRACKING OF A MAIN ROTOR BLADE WHICH COULD RESULT IN FAILURE OF A MAIN ROTOR BLADE AND LOSS OF CONTROL OF THE HELICOPTER TO PREVENT UNFILTERED TURBINE OUTLET TEMP(TOT) INDICATOR OVER TEMPERATURE WARNING LIGHT,WHEN ILLUMINATED,CREATING GLARE AND REFLECTIONS THAT COULD DEGRADE THE PILOTS VIEW THROUGH NIGHT VISION GOGGLES AND COULD RESULT IN LOSS OF CONTROL OF THE HELICOPTER ROTORCRAFT SERVO SYSTEM UNSAFE CONDITION AS LOOSE OR MISALIGNED PARTS OF THE SERVO.THIS CONDITION COULD RESULT IN FAILURE OF THE SERVO AND LOSS OF CONTROL UNSAFE CONDITION AS AN INOPERATIVE CONTROL BOX ASSEMBLY.THIS CONDITION COULD RESULT IN A DISABLED AUTO RELIGHT SYSTEM,FAILURE OF THE ENGINE TO RELIGHT AFTER A FLAMEOUT. FAILURE OF A BEARING AND THE LEVER ASSEMBLY IN WHICH IT IS INSTALLED AND LOSS OF CONTROL OF THE HELICOPTER UNSAFE CONDITION AS CERTAIN CAPS BEING MANUFACTURED WITHOUT A LUBRICATION CHANNEL TO ALLOW OIL FLOW INTO THE AFT BEARING SUPPORT ASSEMBLY,WHICH COULD RESULT IN FAILURE OF THE FREEWHEEL UNIT & FAA AD FAA AD FAA AD FAA AD FAA AD FAA AD

20 DGCA/BELL 206/167 DGCA/BELL 206/168 DGCA/BELL 206/169 DGCA/BELL 206/170 DGCA/BELL 206/171 DGCA/BELL 206/172 LOSS OF CONTROL OF THE HELICOPTER UNSAFE CONDITION AS INCORRECTLY INSTALLED FLOAT INFLATION HOSES,WHICH COULD RESULT IN FAILURE OF THE EMERGENCY FLOATS TO INFLATE FULLY DURING AN EMERGENCY DEFINES THE UNSAFE CONDITION AS A THIRD STAGE TURBINE VIBRATION,WHICH COULD RESULT IN TURBINE FAILURE,ENGINE POWER LOSS,AND LOSS OF CONTROL OF THE HELICOPTER UNSAFE CONDITION AS A CRACK IN A TAILBOOM ATTACHMENT FITTING,WHICH COULD RESULT IN LOSS OF THE TAILBOOM AND LOSS OF CONTROL OF THE HELICOPTER FAA AD FAA AD FAA AD DEFINES THE UNSAFE CONDITION AS THE FAA AD MANUFACTURE OF AN M/R BLADE WITH AN OVERSIZED SPAR SPACER.THIS CONDITION COULD RESULT IN FAILURE OF AN M/R BLADE AND LOSS OF CONTROL OF THE HELICOPTER THE UNSAFE CONDITION AS A THIRD STAGE TURBINE VIBRATION, WHICH COULD RESULT IN TURBINE FAILURE, ENGINE POWER LOSS, AND LOSS OF CONTROL OF THE HELICOPTER FAA AD THIS AD DEFINES THE UNSAFE CONDITION AS FAA AD CORROSION OF A TT STRAP. THIS CONDITION COULD RESULT IN FAILURE OF THE TT STRAP AND

21 LOSS OF CONTROL OF THE HELICOPTER.