# Pratt & Whitney JT9D-70A - Type: Engine model (FAA registry) - Registry code: 51550 - Manufacturer (registry): P & W - Model: JT9D-70A - Engine type: Turbo-fan - Power: 51,140 lb thrust - Data sheet: [TCDS E3NE](https://openairdocs.org/tcds/E3NE) (OpenAirDocs) - Holder: Pratt & Whitney - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-jt9d-70a Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2021-09-10](https://openairdocs.org/ad/2021-09-10): Turbine Engine Compressor Section · Pratt & Whitney JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 27, 2021 - [AD 2005-05-13](https://openairdocs.org/ad/2005-05-13): High pressure turbine (HPT) second stage airseals · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Apr 14, 2005 - [AD 2000-23-14](https://openairdocs.org/ad/2000-23-14): No. 4 Bearing Area · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 11 more. Effective Jan 19, 2001 - [AD 98-21-22 R1](https://openairdocs.org/ad/98-21-22-R1): High Pressure Compressor Disks · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 8 more. Effective Jan 18, 2000 - [AD 99-14-08](https://openairdocs.org/ad/99-14-08): Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Sep 13, 1999 - [AD 99-11-09](https://openairdocs.org/ad/99-11-09): Diffuser Case Rear Rail · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Jul 26, 1999 - [AD 99-04-05](https://openairdocs.org/ad/99-04-05): Rear Skirt Ddiffuser Case Inspection · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Apr 12, 1999 - [AD 97-25-10 R1](https://openairdocs.org/ad/97-25-10-R1): (HPT) Disks · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 5 more. Effective Jul 29, 1998 - [AD 96-25-10](https://openairdocs.org/ad/96-25-10): Design Turbine Exhaust Case · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Feb 18, 1997 - [AD 94-15-16](https://openairdocs.org/ad/94-15-16): Engine Control System Accessories · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 9 more. Effective Oct 14, 1994 - [AD 93-15-04](https://openairdocs.org/ad/93-15-04): Fuel Nozzle And Support Assembly · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Nov 19, 1993 - [AD 93-14-20](https://openairdocs.org/ad/93-14-20): Vane Cluster Assembly · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Aug 27, 1993 - [AD 86-09-01 R1](https://openairdocs.org/ad/86-09-01-R1): Turbine Vane Antirotation Pin Failure · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-59A and 9 more. Effective Jul 6, 1988 - [AD 78-16-05](https://openairdocs.org/ad/78-16-05): Sixth Stage Turbine Disks · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Sep 12, 1978 - [AD 76-24-03](https://openairdocs.org/ad/76-24-03): Fan Blades · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Dec 30, 1976 - [AD 76-12-03](https://openairdocs.org/ad/76-12-03): Sixth Stage Turbine Disk · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Jun 22, 1976 - [AD 73-16-05](https://openairdocs.org/ad/73-16-05): Fourth and Fifth Stage Turbine Discs · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Aug 15, 1973 Historical (superseded or no longer in force): - [AD 2012-04-15](https://openairdocs.org/ad/2012-04-15) (historical): Engine · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective Apr 23, 2012 - [AD 2007-05-17](https://openairdocs.org/ad/2007-05-17) (historical): Airworthiness Limitations Section (ALS) · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-7 and 15 more. Effective Apr 12, 2007 - [AD 2002-10-07](https://openairdocs.org/ad/2002-10-07) (historical): High Pressure Turbine (HPT) Second Stage Airseals · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 1 more. Effective Jun 27, 2002 - [AD 2002-08-11](https://openairdocs.org/ad/2002-08-11) (historical): Airworthiness Limitations Section (ALS) - Critical Life-Limited Parts · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 28, 2002 - [AD 2000-01-13](https://openairdocs.org/ad/2000-01-13) (historical): Pratt & Whitney Division JT9D-7, JT9D-70A, JT9D-7A and 13 more. Effective Feb 23, 2000 - [AD 99-08-12](https://openairdocs.org/ad/99-08-12) (historical): Maintenance Program, Mandatory Inspections · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective May 13, 1999 ## Information bulletins (advisory) (2) - [SAIB NE-02-30](https://openairdocs.org/saib/NE-02-30): . Issued Jun 3, 2002 - [SAIB NE-02-01](https://openairdocs.org/saib/NE-02-01): . Issued Oct 5, 2001 ## Registered aircraft None registered with this engine model now. ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports None matched to aircraft with this engine model. ## Service difficulty reports (50) As reported by operators and repair stations, by the model named in the report. - [SDR P5CA0501419](https://openairdocs.org/sdr/P5CA0501419), Dec 15, 2005: TRANSMITTER. FAILED. ON TAKEOFF ROLL, CREW REPORTED NR 3 ENGINE EPR WOULD NOT ADVANCE ABOVE 1.2 EPR, FULL TRAVEL OF THROTTLE HAD NO EFFECT. TAKEOFF ABORTED AT 80 KTS IAS EPR ON NR 3 - [SDR PDCA0501420](https://openairdocs.org/sdr/PDCA0501420), Dec 12, 2005: TRANSMITTER. FAILED. ON CLIMB, NR 3 ENGINE EPR STARTED DECREASING AT FL310 EPR IND., ON DESCENT IT READ HIGH (1.24 AT 150 WITH THRUST LEVERS IDLE) (CORRECTIVE ACTION) REPLACED EPR T - [SDR P5CA0501389](https://openairdocs.org/sdr/P5CA0501389), Aug 26, 2005: SWITCH. OUT OF ADJUST. NR 2 ENGINE REVERSER UNSTOW. ADJUSTED NR 2 REVERSER STOW SWITCH PER MM 78-31-00. - [SDR P5CA0501362](https://openairdocs.org/sdr/P5CA0501362), Jun 10, 2005: CLAMP. FAILED. NR 1 ENGINE FIRE WARNING SOUNDED ON DESCENT. CLOSED THRUST AND START LEVER, LIGHT WENT OUT. FIRE HANDLE WAS NOT PULLED. REPLACED CLAMP TO HIGH STAGE VALVE. OPS - [SDR P5CA0501377](https://openairdocs.org/sdr/P5CA0501377), Jun 10, 2005: CLAMP. FAILED. CREW REPORTED NR 1 ENGINE FIRE WARNING SOUNDED ON DESCENT. CLOSED THRUST AND START LEVER, LIGHT WENT OUT. FIRE HANDLE WAS NOT PULLED. REPLACED CLAMP TO HIGH STA - [SDR P5CA0501331](https://openairdocs.org/sdr/P5CA0501331), Mar 20, 2005: DOOR. MISSING. ON POST FLIGHT NR 3 ENGINE REVERSER PANEL MISSING. ACCOMPLISHED INTERIM REPAIR PER SRM 51-00-04 AND SRM 51-40-16, ALSO GMM 3-17-1. TRANSFERRED TO C/O ITEM 921-1 - [SDR P5CA0501324](https://openairdocs.org/sdr/P5CA0501324), Feb 22, 2005: ENGINE. MALFUNCTIONED. CREW REPORTED NR 1 ENGINE WOULD NOT MAKE TAKEOFF EPR. INSPECTED NR 1 ENGINE PER MM 71-00-00, OPENED MEL 77-4-1 FOR EPR UNRELIABLE. - [SDR P5CA0501308](https://openairdocs.org/sdr/P5CA0501308), Jan 21, 2005: THRUST REVERSER. INOPERATIVE. NR 4 ENGINE THRUST REVERSER WOULD NOT DEPLOY AFTER LANDING. NR 4 ENGINE THRUST REVERSER DEACTIVATED PER MEL 78-01-2A. REF MM 78-31-00. - [SDR P5CA0401279](https://openairdocs.org/sdr/P5CA0401279), Nov 17, 2004: INDICATOR. NO INDICATION. NR 3 ENGINE HAS NO EPR INDICATION WHEN ACCELERATING. TRANSFERRED TO DMI 33386 PER MEL 77-04-1. - [SDR P5CA0401266](https://openairdocs.org/sdr/P5CA0401266), Oct 30, 2004: STARTER. MALFUNCTIONED. NR 1 ENGINE WOULD NOT TURN ON, PYLON VALVE & START VALVE INDICATES OPEN. REPLACED STARTER, OPS CHECK OK PER AMM 80-11-00. - [SDR P5CA0401242](https://openairdocs.org/sdr/P5CA0401242), Oct 4, 2004: FLAP. MALFUNCTIONED. NR 2 LEFT LEADING EDGE WOULD NOT COME UP PNEUMATICALLY, OK ELECTRICALLY. RECYCLED FLAPS PNEUMATICALLY, NO HELP. TRANSFERRED TO DMI 33203. - [SDR P5CA0401191](https://openairdocs.org/sdr/P5CA0401191), Sep 9, 2004: ACTUATOR. MALFUNCTIONED. AFTER PUSHBACK, ON ENGINE START NR 1 ENGINE FUEL CONDITION ACTUATOR CIRCUIT BREAKER OPENED. REMOVED AND REPLACED NR 1 FUEL CONDITION ACTUATOR, ALL OPS NORMAL. - [SDR P5CA0401192](https://openairdocs.org/sdr/P5CA0401192), Sep 9, 2004: WARNING LIGHT. ILLUMINATED. NR 2 ENG THRUST REVERSER UNLOCK LIGHT ILLUMINATED ON FORWARD ANNUNCIATOR PANEL ON POWER UP FOR TAKEOFF. REPEATED THRUST REVERSER LIGHT ON FLIGHT ENGINEER PANEL. - [SDR P5CA0401183](https://openairdocs.org/sdr/P5CA0401183), Aug 28, 2004: SEAL. LEAKING. DURING CRUISE, NR 1 ENG OIL QTY GRADUALLY DECREASED, OIL PRESSURE & TEMP NORMAL, CLOSELY MONITERED OIL QTY, WHEN ZERO OIL PRESSURE INDICATED, GAUGE FLUCTUATED & - [SDR P5CA0401182](https://openairdocs.org/sdr/P5CA0401182), Aug 27, 2004: LINE. LEAKING. VIA PHONE PATCH, CREW REPORTS 0 PSI/0 QTY ON NR 1 HYDRAULIC SYSTEM. INSTALLED TEMP FLEX LINE PER MM 20-11-18 & GMM 3-17-1, PLACED ITEM ON COI 921-163. LINE IS L - [SDR P5CA0401178](https://openairdocs.org/sdr/P5CA0401178), Aug 24, 2004: FILTER. DAMAGED. NR 2 ENGINE COMPRESSOR STALL. VISUAL INSPECTION, REMOVED AND REPLACED FUEL & OIL FILTER, ENGINE IDLE RUN ACCEPTABLE PER AMM 71-00-00. - [SDR P5CA0401135](https://openairdocs.org/sdr/P5CA0401135), Aug 8, 2004: CLAMP. DAMAGED. NR 3 ENGINE HIGH STAGE VALVE WILL NOT OPEN AT ALTITUDE WITH THRUST LEVER CLOSED. REPLACED CLAMP ON HIGH STAGE VALVE, OPERATIONAL CHECK & LEAK CHECK OK PER MM 36 - [SDR P5CA0401134](https://openairdocs.org/sdr/P5CA0401134), Aug 4, 2004: LIGHT. INOPERATIVE. TAT, SAT, IB FLAPS AND P-10 PANEL LIGHTS OUT, ALSO BACKGROUND HSI, CLOCK AND AIR SPEED IND. TRANSFERED TO DMI NR 32904 IAW MEL 33-1. - [SDR P5CA0401132](https://openairdocs.org/sdr/P5CA0401132), Jul 31, 2004: STRUCTURE. DAMAGED. NR 3 THRUST REVERSER DAMAGED. PERFORMED INTEAM REPAIR IAW SRM 54-07-00. THRUST REVERSER REPAIR PLACARD ON COI NR 162. TRANSFERED TO DMI NR 32887 T/R DEACTIVATED - [SDR P5CA0401124](https://openairdocs.org/sdr/P5CA0401124), Jul 27, 2004: WEB. CRACKED. WEB CRACK FOR CENTER WEIGHT, LT OB ELEVATORS OB ACTUATOR ELEV STA 256. REMOVED CRACKED WEB IAW SRM 51-30-02, FABRICATED WEB IAW SRM 55-20-02, INSTALLED WEB IAW - [SDR P5CA0401128](https://openairdocs.org/sdr/P5CA0401128), Jul 26, 2004: PACKING. LEAKING. NR 4 ENGINE IN OIL QTY DROPPED FROM 10.5 GAL BEFORE START TO 8.5 GAL AT IDLE. ON APPROACH INDICATION WENT TO ZERO WITH PRESSURE FLUXUATION B/W 40 AND 25 PSI. RE - [SDR P5CA0401121](https://openairdocs.org/sdr/P5CA0401121), Jul 12, 2004: KEELBEAM. CORRODED. CORROSION ON KEELBEAM 2 PLACES, AT BS 1332 AND STA 1319 RT SIZE. REMOVED CORROSION AND FOUND OUT OF LIMITS. REPAIRED IAW MA NR A5349-01-02, WORK ACCOMPLISH ON T - [SDR P5CA0401122](https://openairdocs.org/sdr/P5CA0401122), Jul 6, 2004: SEAT TRACK. CORRODED. CORROSION UPPER DECK SEAT TRACK BS 540-580 RBL 46.65-WL 310. REMOVED AND REPLACED SEAT TRACK FROM BS 530-660, IAW SRM 53-10-05-53-30-08-53-30-02. - [SDR P5CA0401175](https://openairdocs.org/sdr/P5CA0401175), Jun 29, 2004: SEAT TRACK. CRACKED. SEAT TRACK CORRODED & CRACKED B/W STA 580-560 LBL 62 UPPER DECK. REMOVED DAMAGE SECTION OF SEAT TRACK FROM STA 530-620 IAW SRM 51-30-08. NEW SECTION OF SEAT TRA - [SDR P5CA0401176](https://openairdocs.org/sdr/P5CA0401176), Jun 29, 2004: STIFFENER. CORRODED. STIFFENER CORRODED ON O/B SIDE ELEV, STA 406-5 LEFT HORIZONTAL STAB. REMOVED CORROSION FOUND OUT OF LIMIT PER SRM 55-20-01. REMOVED AND REPLACED STIFFENER AS PE - [SDR P5CA0401127](https://openairdocs.org/sdr/P5CA0401127), Jun 18, 2004: SKIN. DELAMINATED. LT IB AILERON DELAMINATED LOWER SIDE WBL500 2 PLACES. REPAIR 2EA DAMAGED AREA WITH FIBER GLASS IAW SRM 51-40-15, APPLIED CONDUCTIVELY COATING, PRIMED AND PAINTE - [SDR P5CA0401126](https://openairdocs.org/sdr/P5CA0401126), Jun 17, 2004: SKIN. ERODED. LT WING IB FORE FLAP UPPER TRAILING EDGE WBL235 EROSION MIDDLE SECTION. REMOVED DAMAGE, APPLIED FIBERGLASS OVERLAY IAW SRM 51-40-15, APPLIED ANTISTATIC TO REPAI - [SDR P5CA0401123](https://openairdocs.org/sdr/P5CA0401123), Jun 15, 2004: KEELBEAM. CORRODED. RT KEEL BEAM CORROSION FROM BS 1310 TO BS 1342. LT KEEL BEAM CORROSION FROM STA 1310 TO STA 1340. REPAIR IAW POLAR MA NR A5349-01-02. - [SDR P5CA0401057](https://openairdocs.org/sdr/P5CA0401057), Mar 11, 2004: WARNING LIGHT. ILLUMINATED. N4 T/R ARMED LIGHT ON DURING TAXI. OPENED MEL 78-06-A, CONFIRMED REVERSER STOWED. - [SDR P5CA0401058](https://openairdocs.org/sdr/P5CA0401058), Mar 11, 2004: TRANSMITTER. FAILED. NR 1 ENG WOULD NOT PRODUCE TAKEOFF THRUST OF 1.53 EPR. DROPPED TO 1.45 EPR AT FWD THROTTLE STOP. ABORTED T/O. REPLACED EPR TRANSMITTER PER MM 77-11-02. ENGINE G - [SDR P5CA0401053](https://openairdocs.org/sdr/P5CA0401053), Mar 9, 2004: SEAL. BROKEN. LEFT WING L/E OVERHEAT LIGHT ON. REPLACED BROKEN SEALS ON L/E DUCT INBOARD OF NR 2 ENG AND BY THE NR 3 PDU OPS AND LEAK CHECK OK PER MM 36-11-01 AND 26-18-01. - [SDR P5CA0401054](https://openairdocs.org/sdr/P5CA0401054), Mar 8, 2004: FAN BLADE. BROKEN. NR 3 ENG HAS ONE FAN BLADE TIP BENT, A SECOND FAN BLADE TIP BLADE FOUND DAMAGED & BROKEN. TWO BLADES REPLACED. - [SDR P5CA0401055](https://openairdocs.org/sdr/P5CA0401055), Mar 8, 2004: INTAKE. DELAMINATED. NR 2 ENG INBOARD OUTSIDE FAN COWL REQ UPGRAGE, INTERNAL 84 X 20 INCH AREA DELAMINATED BEYOND LOCAL REPAIR. REPLACED COWLING. - [SDR P5CA0401040](https://openairdocs.org/sdr/P5CA0401040), Feb 17, 2004: CLAMP. FAILED. WHILE IN CLIMB FL 29-30 NR 2 ENG FIRE WARNING ON HANDLE AND BOTH FIRE LOOPS CAME ON. ENG SHUT DOWN AND A/C DIVERTED TO NRT. REMOVED AND REPLACED NOSE COWL ANTI- - [SDR P5CA0300962](https://openairdocs.org/sdr/P5CA0300962), Oct 8, 2003: THRUST REVERSER. DEPLOYED. NR 2 ENG THRUST REVERSER DEPLOYED ON T/O ROLL AT 80 KTS. NR 2 ENG T/R DEACTIVATED PER DDPG 78-1 AND MM 78-31-00. ACCOMPLISHED HIGH ENERGY STOP HEAT DAMAGE CONDI - [SDR P5CA0300946](https://openairdocs.org/sdr/P5CA0300946), Sep 20, 2003: SKIN. DELAMINATED. ON MX PREFLIGHT, ON NR 3 ENG INSIDE REVERSER AREA FOUND DELAMINATION. PERFORMED REPAIR WITHIN 10 CYC - COI 921-150 ISSUED. - [SDR P5CA0300785](https://openairdocs.org/sdr/P5CA0300785), Mar 31, 2003: TUBE. RUPTURED. NR 4 ENG 13TH STAGE TURBINE CASE COOLING DUCT RUPTURED AND BLEW THRU LT REVERSER HALF. REPLACED 13TH STAGE COOLING DUCT & LT REVERSER HALF. - [SDR P5CA0200668](https://openairdocs.org/sdr/P5CA0200668), Mar 18, 2002: SWITCH. FAULTY. OIL FILTER BYPASS LIGHT ON NR 3 ENGINE ILLUMINATED DURING CRUISE ON AIRWAY A450 EN ROUTE FROM GUM TO HNL AT 1715Z. NR 3 ENGINE SHUT DOWN IAW ABNORMAL PROCEDURE - [SDR P5CA0200662](https://openairdocs.org/sdr/P5CA0200662), Mar 8, 2002: TAILPIPE. CRACKED. FOUND NR 1 ENGINE TAIL PIPE INNER SLEEVE, CRACK APPROX 1 INCH LONG AT 6 O'CLOCK POSITION AND APPROX 18 INCHES FROM FWD CONE L/E. CRACK IS 6.5 INCH LONG FOUND ON - [SDR P5CA0000184](https://openairdocs.org/sdr/P5CA0000184), Apr 15, 2000: FLANGE. CRACKED. NR 4 ENG R FLANGE CRACK AT 7 O''CLOCK POSITION ON LIGHTENING HOLE. NR 2 ENG TURBINE COOLING CRACKED AT 10 O''CLOCK POSITON. REPAIRED PER MM 72-09-71, REP 8. - [SDR P5CA0000185](https://openairdocs.org/sdr/P5CA0000185), Apr 15, 2000: SUPPORT BRACKET. CRACKED. NR 3 ENG TURBINE CASE WALL COOLING DUCT SUPPORT BRACKET AT 2:30 & 7 O'CLOCK POS CRACK NR 4 ENG RT L DUCT LOWER DOOR LATCH PANEL HINGE LOOSE. REPLACED PER EM 72- - [SDR P5CA0000186](https://openairdocs.org/sdr/P5CA0000186), Apr 15, 2000: FLANGE. CRACKED. NR 2 ENG R FLANGE CRACK AT 05:00 & 06:00 O''CLOCK POSITIONS. NR 2 ENG COOLING TURBINE CRACKED AT 10:00 O''CLOCK POSITION. REPAIRED PER EM 72-53-01 REP 24. - [SDR P5CA9801574](https://openairdocs.org/sdr/P5CA9801574), Oct 30, 1998: R RAIL. CRACKED. #3 ENGINE R RAIL CRACKED LEFT SIDE AT 7 OCLOCK POSITION. WELDED, STRESS RELIEVED IAW PW MM 72-53-01. - [SDR P5CA9801586](https://openairdocs.org/sdr/P5CA9801586), Oct 30, 1998: RAIL. CRACKED. NR 2 ENGINE R-RAIL CRACK FOUND AT 6 O'CLOCK POSITION. WELDED AND STRESS RELIEVED IAW PW MM 72-53-01. - [SDR P5CA9701856](https://openairdocs.org/sdr/P5CA9701856), Dec 28, 1997: VANE CONTROL. FAILED. NR 4 ENGINE HAD COMPRESSOR STALL AFTER THROTTLES RETARDED AT TOP OF DESCENT. EGT INCREASED TO 490 DEGREES. INFLIGHT SHUT DOWN ACCOMPLISHED. INFLIGHT START ATTEM - [SDR UIEA9702](https://openairdocs.org/sdr/UIEA9702), May 3, 1997: PS4 LINE. BROKEN. CREW REPORTS, EXPERIENCED NR 3 ENGINE FAILURE AT FL 410. DESCENDED TO FL 350, ATTEMPTED UNSUCCESSFUL RESTART. DESCENDED FURTHER TO FL 310. ATTEMPTED TWO UNSUCCE - [SDR UIEA9610](https://openairdocs.org/sdr/UIEA9610), Aug 30, 1996: PS4 TUBE. BROKEN. EN ROUTE GRV-MEX - FLIGHT NR VG986 - NR 3 ENGINE FLAMEOUT FL 310. AIRCRAFT DIVERTED TO MAO DUMPED 40K FUEL. INSPECTION REVEALED A BROKEN PS4 TUBE TO THE FUEL CO - [SDR 95FDEA01888](https://openairdocs.org/sdr/95FDEA01888), Dec 10, 1995: TT2 SENSOR. FAILED. IN-FLIGHT SHUTDOWN NR 2 ENGINE, ENGINE NOT RESPONDING TO THROTTLE MOVEMENT AT FL 370 IAS 250 (ATC REQ) NO TURB, ENG WAS RESTARTED AT FL 290, DESCENT AND APPROAC - [SDR 95FDEA01385](https://openairdocs.org/sdr/95FDEA01385), Sep 19, 1995: ENGINE. FLAMED-OUT. WHILE AT FL 410 ENCOUNTED SEV TURB, ENG 2 WENT TO IDLE AND NR 3 FLAMED-OUT, COULD NOT MX ALT OR A/S DESC TO FL 280. ENG NR 2 CAME BACK AFTER 2 MIN AND NR 3 WAS - [SDR 95FDEA01386](https://openairdocs.org/sdr/95FDEA01386), Sep 18, 1995: COMPRESSOR. STALLED. JFK-FRA - EN ROUTE AT FL 330 1408Z, NR 1 ENG EXPERIENCED A COMPRESSOR STALL. AFTER 2 MILD BUMPS, THE ENG PARA WOUND DOWN, NO OVERTEMP PRESENT. AFTER CHECKLIST P ## STCs that may be installed (OpenAirDocs) (3) Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SE00024EN](https://openairdocs.org/stc/SE00024EN): Installation of oil tank filler neck check valve. Helicopter Support Inc Services Div - [STC SE497NE](https://openairdocs.org/stc/SE497NE): Installation of oil tank filler neck check valve assembly. Aviation Components Support - [STC SE435NE](https://openairdocs.org/stc/SE435NE): Installation of an oil tank filler opening shuttle valve. Stockbridge William D ## PMA parts (OpenAirDocs) (963, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [WF335297](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132393134320250602133021.0001): Filter Element, Oil. Donaldson Company Inc · PMA PQ2432CE · Replaces 815189, Alternate: AD-B863F-65Y4 · May 23, 2025 - [739951KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153223182920251125233836.0001): Nut Option. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 739951 · Feb 20, 2024 - [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149540485520240306163131.0001): Bleed Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 728244 · Apr 7, 2023 - [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120575539320231218190434.0001): Bleed Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 728244 · Apr 7, 2023 - [787V500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199627737420230914183247.0001): Air Cooling Shutoff Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 770051 Rev. B (10-26-77) · Mar 29, 2023 - [684V800](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188649902420230914183251.0001): Thermostat Flow Control. Honeywell International Inc. · PMA PQ1222NM · Replaces 756796 Rev. B (8-22-90) · Mar 29, 2023 - [426V600](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183757188420230914183253.0001): Solenoid Bleed Override Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 655005 Rev. C (8-23-90) · Mar 29, 2023 - [666V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181891677520230914183252.0001): Fuel Check Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 706354 Rev. C (8-6-90) · Mar 29, 2023 - [941V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162411062720230914183248.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 773627 Rev. C (4-12-84) · Mar 29, 2023 - [941V200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138315515420230914183245.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 5001987-01 Rev. D (8/20/90) · Mar 29, 2023 - [787V900](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129148698520230914183249.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 777835 Rev. A (8/90) · Mar 29, 2023 - [787V300](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179052864220240223164806.0001): Shut-Off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 746357 Rev. A 2-8-74 · Mar 23, 2023 - [DEC01- 056-533](https://drs.faa.gov/browse/excelExternalWindow/E52CBA5DDCD311F186258629005AC28B.0001): Gasket - .093 Free Height. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces ST1111-33 ST1121-33 ST1141-33 · Nov 16, 2020 - [733726WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID213268376120210611172313.0001): Pin, Shoulder Headless, 0.156 X 0.100 X 0.300 X 6.720. Wencor LLC · PMA PQ1370NM · Replaces 733726 · Oct 15, 2020 - [715118WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129247679920210611172135.0001): Pin, Straight Headed, .1705 X .305, Slab. Wencor LLC · PMA PQ1370NM · Replaces 715118 · Oct 15, 2020 - [M770354](https://drs.faa.gov/browse/excelExternalWindow/5BFC3294592D814B862585E4003A0124.0001): Spacer-#1&2 Bearing. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 770354 · Sep 9, 2020 - [K29109-5-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199222314220240703182956.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638834 · Apr 1, 2020 - [H29117-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194053167920240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 662141 · Apr 1, 2020 - [H29118-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192129229120240703182937.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618097 · Apr 1, 2020 - [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191799248720240703182941.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020 - [H22-5PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191412436920240703182916.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 395037 · Apr 1, 2020 - [H50361-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189842981620240703183046.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 760552 · Apr 1, 2020 - [F5231-4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188658819220240703182924.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 501558 · Apr 1, 2020 - [K1000X4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188589440020240703183043.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 753965 · Apr 1, 2020 - [F39244-3BC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183518510320240703183036.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 746922 · Apr 1, 2020 - [K3031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182584152620240703183020.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707838 · Apr 1, 2020 - [H29220-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181296887920240703182959.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639299 · Apr 1, 2020 - [H29605-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178996417420240703183009.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 649734 · Apr 1, 2020 - [K39369-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178897652920240703183039.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 751935 · Apr 1, 2020 - [F5031-3BCPW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174223066620240703183026.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 714847 · Apr 1, 2020 - [F50030-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174206753420240703183035.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 744380 · Apr 1, 2020 - [CN39971-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173827076120240703183014.0001): Nut, gangchannel,S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677824 · Apr 1, 2020 - [MF39839-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172863478620240703183032.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 743080 · Apr 1, 2020 - [K29109-4-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171047886120240703182951.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638671 · Apr 1, 2020 - [MK1031-4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169137431020240703183037.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 750691 · Apr 1, 2020 - [MF29748-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168182111020240703182934.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 596295 · Apr 1, 2020 - [K39085-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165068875520240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 650410 · Apr 1, 2020 - [CN52502-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162355773120240703183050.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 800826 · Apr 1, 2020 - [MK1031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152243115020240703183022.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707842 · Apr 1, 2020 - [H29112-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151789073520240703182938.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618103 · Apr 1, 2020 - [F29964-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149905483120240703182948.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 637285 · Apr 1, 2020 - [H29819-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149068996020240703182944.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 624998 · Apr 1, 2020 - [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147186387620240703182942.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020 - [MF29122-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145687999320240703182955.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638676 · Apr 1, 2020 - [MK2000-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145184507620240703183029.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 715018 · Apr 1, 2020 - [F49342-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140951668720240703183024.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 711481 · Apr 1, 2020 - [H19942-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135730084120240703182923.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 490276 · Apr 1, 2020 - [H29220-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133424321720240703183000.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639335 · Apr 1, 2020 - [F2000-4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132519874020240703183023.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 710826 · Apr 1, 2020 - [K2000-4CW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131587197820240703183042.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 751942 · Apr 1, 2020 All of them: https://openairdocs.org/engine/pratt-whitney-jt9d-70a/pma.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.