# Pratt & Whitney JT12A-8 - Type: Engine model (FAA registry) - Registry code: 52052 - Manufacturer (registry): P & W - Model: JT12A-8 - Engine type: Turbo-jet - Power: 3,300 lb thrust - Data sheet: [TCDS 1E9](https://openairdocs.org/tcds/1E9) (OpenAirDocs) - Holder: Erickson Incorporated DBA Erickson Air-Crane - Installed in: 12 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-jt12a-8 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 71-24-05](https://openairdocs.org/ad/71-24-05): Compressor Rotor Discs · Pratt & Whitney Division JFTD12A-4A (T73P-1), JFTD12A-5A (T73-P-700), JT12A-6 and 2 more. Effective May 31, 1974 - [AD 71-17-06](https://openairdocs.org/ad/71-17-06): Stage 2, 3, 7 and 8 Compressor Rotor Discs · Pratt & Whitney Division J60-P-5B, JT12A-6, JT12A-6A and 1 more. Effective Aug 17, 1971 - [AD 56-06-02](https://openairdocs.org/ad/56-06-02): Cylinder Flange Attaching Stud · Pratt & Whitney Division Double Wasp CA15, Double Wasp CA17, Double Wasp CA18 and 115 more ## Registered aircraft (12) - [N11LX](https://openairdocs.org/aircraft/N11LX): [N492a LLC](https://openairdocs.org/faa-owner/N492A%20LLC), [Goodyear, AZ](https://openairdocs.org/faa-place/AZ/Goodyear), built 1974, S/N 306-75 - [N141SL](https://openairdocs.org/aircraft/N141SL): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1978, S/N 306-141 - [N211BR](https://openairdocs.org/aircraft/N211BR): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1972, S/N 282-99 - [N265SC](https://openairdocs.org/aircraft/N265SC): [Sunshine Aero Industries Inc](https://openairdocs.org/faa-owner/SUNSHINE%20AERO%20INDUSTRIES%20INC), [Crestview, FL](https://openairdocs.org/faa-place/FL/Crestview), built 1973, S/N 282-117 - [N33JW](https://openairdocs.org/aircraft/N33JW): [Bj Aviation LLC](https://openairdocs.org/faa-owner/BJ%20AVIATION%20LLC), [Beaver Meadows, PA](https://openairdocs.org/faa-place/PA/Beaver%20Meadows), built 1974, S/N 306-92 - [N378D](https://openairdocs.org/aircraft/N378D): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 1975, S/N 306-101 - [N39CB](https://openairdocs.org/aircraft/N39CB): [Redstar Air Shows Inc](https://openairdocs.org/faa-owner/REDSTAR%20AIR%20SHOWS%20INC), [Discovery Bay, CA](https://openairdocs.org/faa-place/CA/Discovery%20Bay), built 1976, S/N 306-116 - [N40GT](https://openairdocs.org/aircraft/N40GT): [Sunshine Aero Industries Inc](https://openairdocs.org/faa-owner/SUNSHINE%20AERO%20INDUSTRIES%20INC), [Crestview, FL](https://openairdocs.org/faa-place/FL/Crestview), built 1973, S/N 282126 - [N48DD](https://openairdocs.org/aircraft/N48DD): [Redstar Air Shows Inc](https://openairdocs.org/faa-owner/REDSTAR%20AIR%20SHOWS%20INC), [Discovery Bay, CA](https://openairdocs.org/faa-place/CA/Discovery%20Bay), built 1979, S/N 306146 - [N607CF](https://openairdocs.org/aircraft/N607CF): [Redstar Air Shows Inc](https://openairdocs.org/faa-owner/REDSTAR%20AIR%20SHOWS%20INC), [Discovery Bay, CA](https://openairdocs.org/faa-place/CA/Discovery%20Bay), built 1976, S/N 306-118 - [N64DH](https://openairdocs.org/aircraft/N64DH): [Sunshine Aero Industries Inc](https://openairdocs.org/faa-owner/SUNSHINE%20AERO%20INDUSTRIES%20INC), [Crestview, FL](https://openairdocs.org/faa-place/FL/Crestview), built 1965, S/N 282-52 - [N7KG](https://openairdocs.org/aircraft/N7KG): [Tulsa Technology Center School District No 18](https://openairdocs.org/faa-owner/TULSA%20TECHNOLOGY%20CENTER%20SCHOOL%20DISTRICT%20NO%2018), [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa), built 1973, S/N 282-111 ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB WPR15MA243](https://openairdocs.org/ntsb/WPR15MA243), Aug 16, 2015: North American Rockwell NA265-60SC (N442RM), San Diego, CA, substantial damage, 5 fatal. Probable cause: The local controller's (LC) failure to properly identify the aircraft in the pattern and to ensure control instructions provided to the intended Cessna on downwind were being performed before turning… ## FAA accident and incident reports (15) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20150816023142A](https://openairdocs.org/incident/20150816023142A), Aug 16, 2015: North American Rockwell NA265-60SC (N442RM), San Diego, CA, Destroyed, 4 fatal. On August 16, 2015 at approximately 1100 hrs pacific time, two aircraft, a Cessna 172, N1285U, and an experimental sabreliner, (sabre 60), N442RM, collided… - [Incident 20110409005899I](https://openairdocs.org/incident/20110409005899I), Apr 9, 2011: North American NA-265-60 (N71CC), Ft. Lauderdale, FL, Minor damage. Aircraft repositioning from kfxe to kpbi for passenger pick-up. On approach to kpbi gear left gear light did not illuminate on landing gear actuation. Captain… - [Incident 20070928023269I](https://openairdocs.org/incident/20070928023269I), Sep 28, 2007: Rkwell NA26560 (N59K), Cedar Rapids, IA, No damage. (-23) Due to loss of cabin pressurization, the pilot initiated an emergency descent resulting in a loss of standard separation from an aircraft traveling in… - [Incident 20060807021019I](https://openairdocs.org/incident/20060807021019I), Aug 7, 2006: Rkwell NA26560 (N468RB), Valparaiso, IN. (-23) During climb and shortly after established on course, the gyro flag on the left HSI appeared, and the heading function failed on all associated heading… - [Incident 20030302004289I](https://openairdocs.org/incident/20030302004289I), Mar 2, 2003: Rkwell NA26540 (N430MP), Reno, NV. (-23) On landing rollout, the aircraft experienced a hydraulic system failure which resulted in loss of brakes and directional control. The aircraft ran off… - [Incident 19990604042229I](https://openairdocs.org/incident/19990604042229I), Jun 4, 1999: Rkwell NA26560 (N234DC), Chicago, IL, Minor damage. (-23)On landing at mdw airport runway 4L the first officer applied thrust reverse and braking. The thrust reversres deployed and then emergency stowed. As a… - [Incident 19961121042189I](https://openairdocs.org/incident/19961121042189I), Nov 21, 1996: Rkwell NA26560 (N921MB), Bloomington-Nor, IL, Minor damage. Reported left brake locked on landing roll. Stopped facing 180 from landing direction. No anomalies found. - [Incident 19950130005039I](https://openairdocs.org/incident/19950130005039I), Jan 30, 1995: Rkwell NA26560 (N39CB), Orlando, FL, Minor damage. Narrative: on January 30, 1995 at 9:15 EST, NA-265-60, N39CB, owned by dxs services ran off the taxiway during taxi for takeoff. The crew reported they had… - [Incident 19941020039159I](https://openairdocs.org/incident/19941020039159I), Oct 20, 1994: Rkwell NA26560 (N15HF), Dyersburg, TN, Minor damage. Ground looped into mud trying tturn off on taxiwaty. Wet runway. Thrust reversers not deployed. Landed long and fas - [Incident 19931109048029I](https://openairdocs.org/incident/19931109048029I), Nov 9, 1993: Rkwell NA26560 (N48WS), Indianapolis, IN, Minor damage. Aircraft veered off runay on rollout. Sustained a flat tire. Antiskid detector may have become disconnected. - [Incident 19921221052679I](https://openairdocs.org/incident/19921221052679I), Dec 21, 1992: Rkwell NA26560 (N113T), Syracuse, NY. NR2 engine oil pressure light on. Shut engine down. Landed at destination. Self locking nut on oil screen loose. - [Incident 19911119058329I](https://openairdocs.org/incident/19911119058329I), Nov 19, 1991: Rkwell NA26540 (N61RH), Santa Monica, CA, Minor damage. Pilot taxied into a parked aircraft while conducting ground operations. - [Incident 19910623029159I](https://openairdocs.org/incident/19910623029159I), Jun 23, 1991: Rkwell NA26560 (N113T), Lexington, KY, Minor damage. Smoke in cockpit. Precautionary landing at airport. Resistor in baggage lighting system failed. - [Incident 19900120003919I](https://openairdocs.org/incident/19900120003919I), Jan 20, 1990: Rkwell NA26560 (N33JW), Syracuse, NY. Hydraulic problem on climb. Returned. Up limit switch out of adjustment due to worn linkage. - [Incident 19890302011779I](https://openairdocs.org/incident/19890302011779I), Mar 2, 1989: Rkwell NA26560 (N71CC), Rifle, CO. Landed and slid off wet slippery runway. ## Service difficulty reports (18) As reported by operators and repair stations, by the model named in the report. - [SDR 2008FA0000663](https://openairdocs.org/sdr/2008FA0000663), Aug 26, 2008: PUMP. WORN. AFTER TAKEOFF THE PILOT COULD NOT ADJUST THE LT ENGINE POWER OUTPUT. ENGINE REMAINED AT TAKEOFF POWER WHILE POWER LEVER WAS RETARDED TO IDLE. PILOT RETURNED TO - [SDR 2008FA0000188](https://openairdocs.org/sdr/2008FA0000188), Mar 10, 2008: ACTUATOR. BYPASSING. LT MLG ACTUATOR BYPASSING ON RETRACTION CAUSING INTERFERENCE WITH IB DOOR ROLLERS. NO EXTERNAL FAILURE INDICATION. UPON TEARDOWN, IT WAS DISCOVERED THAT THE CYL - [SDR 2007FA0001032](https://openairdocs.org/sdr/2007FA0001032), Oct 22, 2007: DUCT. DEFORMED. ATTACHING SLEEVE SLID OFF OF DUCT CAUSING LOSS OF PRESSURIZATION. EMERGENCY PRESSURIZATION FUNCTIONED NORMALLY. CLAMPS TIGHTENED TOO TIGHT AND DEFORMED FIBERGLA - [SDR UVVR200600001](https://openairdocs.org/sdr/UVVR200600001), Feb 21, 2006: NUT. CRACKED. WHILE PERFORMING MAINTENANCE ON AIRCRAFT, IT WAS DISCOVERED THAT APPROXIMATELY 10 NUTS ON EACH WING THAT SECURES UPPER WING PLANK TO REAR SPAR UPPER FLANGE, FRO - [SDR 20010306CW009](https://openairdocs.org/sdr/20010306CW009), Jan 29, 2001: TURBINE WHEEL. CRACKED. DISK TT 3140.1 TC 2697 MAX ALLOWABLE OPER. TIME IS 8000 HR AND 8000 CYCLES.DURING OVERHAUL OF ENGINE AND PERFORMING FLUORESECENT PENETRANT INSPECTION, THE SECON - [SDR 96ZZZX4331](https://openairdocs.org/sdr/96ZZZX4331), Aug 8, 1996: COMPRESSOR. BINDING. COMPRESSOR VERY DIFFICULT TO ROTATE, IINTERNAL BINDING COULD BE FELT WHEN ROTATING BY HAND WITH SHORT SPOOL DOWN TIME. NO FOD NOTED, NO DAMAGE OR VISUAL DEFECTS - [SDR 96ZZZX4342](https://openairdocs.org/sdr/96ZZZX4342), Jul 11, 1996: LOCK. MISSING. METAL-TO-METAL CONTACT, BIND, BLADE RUB. INVESTIGATION FINDINGS: AN INDUCTION TEST RUN COULD NOT BE ACCOMPLISHED DUE TO RUBBING CONDITION. THE ENGINE AND COMRPE - [SDR 96ZZZX3906](https://openairdocs.org/sdr/96ZZZX3906), Jul 10, 1996: COMPRESSOR. BINDING. COMPRESSOR VERY DIFFICULT TO ROTATE AND SPOOL DOWN VERY SHORT. INTERNAL BINDING COULD BE FELT WHEN ROTATING BY HAND. THIS IS A MULTI-STAGE UNIT, SO VISUAL INSPE - [SDR 96ZZZX4323](https://openairdocs.org/sdr/96ZZZX4323), Jul 1, 1996: LOCK. MISSING. INTERNAL BLADE RUBBING, BINDING, AND LOCKING UP. AN INDUCTION TEST RUN WAS PEFORMED ON 6-20-96. DURING THE TEST, VIBRATION OF 3.8 MIL AT 75 PERCENT WAS NOTED. ( - [SDR 96ZZZX4034](https://openairdocs.org/sdr/96ZZZX4034), Jun 21, 1996: COMPRESSOR. BINDING. COMPRESSOR VERY DIFFICULT TO ROTATE AND SPOOL DOWN VERY SHORT. INTERNAL BINDING COULD BE FELT WHEN ROTATING BY HAND. THIS IS A MULTI 9-STAGE UNIT, SO VISUAL INS - [SDR 96ZZZX4035](https://openairdocs.org/sdr/96ZZZX4035), Jun 14, 1996: COMPRESSOR. BINDING. COMPRESSOR VERY DIFFICULT TO ROTATE AND SPOOL DOWN VERY SHORT. INTERNAL BINDING COULD BE FELT WHEN ROATING BY HAND. THIS IS A MULTI 9-STAGE UNIT, SO VISUAL INSP - [SDR 96ZZZX3523](https://openairdocs.org/sdr/96ZZZX3523), Jun 11, 1996: COMPRESSOR. BINDING. COMPRESSOR VERY DIFFICULT TO ROTATE AND SPOOL DOWN VERY SHORT. INTERNAL BINDING COULD BE FELT WHEN ROTATING BY HAND. THIS IS A MULTI-STAGE UNIT, SO VISUAL INSPE - [SDR 96ZZZX3051](https://openairdocs.org/sdr/96ZZZX3051), May 13, 1996: BLADE. BROKEN. SECOND STAGE TURBINE ROTOR BLADE FAILURE IN-FLIGHT, WITHOUT INCIDENT. ENGINE TT, 11,164.7 HRS, CYCLES, 8,081, TSO, 330.9 HRS, TTHSI, 330.9 HRS, TOTAL PART TIME - [SDR 96ZZZX3823](https://openairdocs.org/sdr/96ZZZX3823), Apr 8, 1996: TURBINE. FAILED. CLIMBING THROUGH 5,000 FEET, THE CREW HEARD AND FELT A LOUD REPORT FOLLOWED IMMEDIATELY BY THE LT ENGINE FIRE WARNING LIGHT. THE LT ENGINE SPEED ROLLED BACK TO - [SDR 96ZZZX1359](https://openairdocs.org/sdr/96ZZZX1359), Feb 9, 1996: BLADE. RUB. DURING INSPECTION OF ENGINE, SN P673149NB, A CRACKED INLET GUIDE VANE PROMPTED REMOVAL OF INLET CASE FOR REPAIRS. WITH CASE REMOVED, A COMPRESSOR BLADE RUB, WHI - [SDR 96ZZZX1360](https://openairdocs.org/sdr/96ZZZX1360), Feb 9, 1996: BLADE. OVERLAP. DUE TO CORROSION DMG DISCOVERED ON RT ENG, CUSTOMER ELECTED TO DISASSEMBLE LT ENG FOR CORROSION INSP, & SUBSEQUENT COMPR OVERHAUL PER P&WA. UPON DISASSEMBLY OF - [SDR 96ZZZX1635](https://openairdocs.org/sdr/96ZZZX1635), Feb 9, 1996: VANE. PLATING PEEL. REPORTED CAUSE FOR REMOVAL OF ENGINE FROM AIRCRAFT WAS TURBINE BLADE FAILURE. INVESTIGATION FINDINGS: ENGINE DISASSEMBLED AS NECESSARY AND REPAIRED DUE TO TURBI - [SDR 95ZZZX5314](https://openairdocs.org/sdr/95ZZZX5314), Aug 28, 1995: GUIDE VANE. BURNED. ENGINE RECEIVED FOR CORR & HOT SECT INSP PER SB 1508. ENG OPERATED TO 1,227 HRS TIME SINCE LAST HOT SECT INSP. ENG SUFFERED LOSS OF 3 EA NOZZLE GUIDE VANES COMP ## PMA parts (OpenAirDocs) (193, 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. - [80888TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196237341020260616140917.0001): Gear, Driver – Control. Source Manufacturing Inc · PMA PQ1549CE · Replaces 80888 · Apr 10, 2026 - [745112TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194317500420260616140917.0001): Rivet–Split, Fillister. Source Manufacturing Inc · PMA PQ1549CE · Replaces 745112 · Apr 10, 2026 - [71080TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189780568720260616140915.0001): Washer, Key. Source Manufacturing Inc · PMA PQ1549CE · Replaces 71080 · Apr 10, 2026 - [560890TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188247252220260616140913.0001): Seal, Air – 1st Stage Turbine. Source Manufacturing Inc · PMA PQ1549CE · Replaces 560890 · Apr 10, 2026 - [370915TMT, 370915-05TMT, 370915-10TMT, 370915-15TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182531854620260616140912.0001): Spacer, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 370915 · Apr 10, 2026 - [406123TMT, 406123-05TMT, 406123-10TMT, 406123-15TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180036331320260616140913.0001): Spacer, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 406123 · Apr 10, 2026 - [491975TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179798830320260616140915.0001): Washer. Source Manufacturing Inc · PMA PQ1549CE · Replaces 491975 · Apr 10, 2026 - [446-3-90TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178360562220260616140916.0001): Screw, Machine – Flathead. Source Manufacturing Inc · PMA PQ1549CE · Replaces 446-3-90 · Apr 10, 2026 - [406119TMT, 406119-05TMT, 406119-10TMT, 406119-15TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175682255220260616140912.0001): Spacer, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 406119 · Apr 10, 2026 - [80890TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167266528020260616140917.0001): Shaft, Control Drive Gear. Source Manufacturing Inc · PMA PQ1549CE · Replaces 80890 · Apr 10, 2026 - [390940TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166143657520260616140915.0001): Gearshaft, Main Oil Pump. Source Manufacturing Inc · PMA PQ1549CE · Replaces 390940 · Apr 10, 2026 - [586986TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157738458620260616140910.0001): Valve, Fuel Dump. Source Manufacturing Inc · PMA PQ1549CE · Replaces 586986 · Apr 10, 2026 - [388505TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155399131420260616140914.0001): Adjuster Housing. Source Manufacturing Inc · PMA PQ1549CE · Replaces 388505 · Apr 10, 2026 - [373221TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155001386020260616140910.0001): Plug, Guide. Source Manufacturing Inc · PMA PQ1549CE · Replaces 373221 · Apr 10, 2026 - [370779TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153540178020260616140911.0001): Washer, Key. Source Manufacturing Inc · PMA PQ1549CE · Replaces 370779 · Apr 10, 2026 - [586987TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153079269020260616140911.0001): Strip, Extension – Fuel Dump Valve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 586987 · Apr 10, 2026 - [695847TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148803224420260616140914.0001): Stator, Fuel Nozzle. Source Manufacturing Inc · PMA PQ1549CE · Replaces 695847 · Apr 10, 2026 - [397229TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143631943920260616140911.0001): Spring, Helical Compression. Source Manufacturing Inc · PMA PQ1549CE · Replaces 397229 · Apr 10, 2026 - [384240TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140794862620260616140909.0001): Liner. Source Manufacturing Inc · PMA PQ1549CE · Replaces 384240 · Apr 10, 2026 - [80904TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126014310520260616140916.0001): Washer, Thrust. Source Manufacturing Inc · PMA PQ1549CE · Replaces 80904 · Apr 10, 2026 - [370917TMT, 370917-05TMT, 370917-10TMT, 370917-15TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125200865820260616140912.0001): Spacer, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 370917 · Apr 10, 2026 - [545073TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120704003420260616140914.0001): Adjuster. Source Manufacturing Inc · PMA PQ1549CE · Replaces 545073 · Apr 10, 2026 - [71078TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119886479520260616140913.0001): Impeller Assembly, Shaft and Pin. Source Manufacturing Inc · PMA PQ1549CE · Replaces 71078 · Apr 10, 2026 - [407395TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117839264120260616140915.0001): Washer, Key. Source Manufacturing Inc · PMA PQ1549CE · Replaces 407395 · Apr 10, 2026 - [49902TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107187630520260616140915.0001): Gear, Impeller Driven. Source Manufacturing Inc · PMA PQ1549CE · Replaces 49902 · Apr 10, 2026 - [384249TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106832901220260616140910.0001): Valve Assembly. Source Manufacturing Inc · PMA PQ1549CE · Replaces 384249 · Apr 10, 2026 - [414471TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106828924920260616140916.0001): Pin. Source Manufacturing Inc · PMA PQ1549CE · Replaces 414471 · Apr 10, 2026 - [586989TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104968989020260616140911.0001): Spring, Garter – Fuel Dump Valve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 586989 · Apr 10, 2026 - [394809TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104597897620260616140914.0001): Spacer Seal. Source Manufacturing Inc · PMA PQ1549CE · Replaces 394809 · Apr 10, 2026 - [370916TMT, 370916-05TMT, 370916-10TMT, 370916-15TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100260108120260616140912.0001): Spacer, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 370916 · Apr 10, 2026 - [80884TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100162069420260616140916.0001): Shaft, Main Drive. Source Manufacturing Inc · PMA PQ1549CE · Replaces 80884 · Apr 10, 2026 - [3036376GF](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187641607320230829140955.0001): Filter Element. Global Filtration, Inc. · PMA PQ0993SW · Replaces Pratt and Whitney Canada Corp… · May 19, 2023 - [370077AA](https://drs.faa.gov/browse/excelExternalWindow/A3BF0CF5444E6F11862580CE00749445.0001): Bearing. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 370077 · Feb 1, 2017 - [668725AA](https://drs.faa.gov/browse/excelExternalWindow/A3B359745C596D3D862580CE007494A1.0001): Seal. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 668725 · Feb 1, 2017 - [547559AA](https://drs.faa.gov/browse/excelExternalWindow/9BE81050B0084DE7862580CE007494A0.0001): Bumper. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 547559 · Feb 1, 2017 - [547559AA](https://drs.faa.gov/browse/excelExternalWindow/84293E5DDAC7669D86257FAE006ADFC2.0001): Bumper. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 547559 · Feb 1, 2017 - [370077AA](https://drs.faa.gov/browse/excelExternalWindow/72540DB1300F83EC86257FAE006ADF8B.0001): Bearing. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 370077 · Feb 1, 2017 - [668725AA](https://drs.faa.gov/browse/excelExternalWindow/435A2A0EBAD9F36D86257FAE006ADFC4.0001): Seal. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 668725 · Feb 1, 2017 - [80890TMT](https://drs.faa.gov/browse/excelExternalWindow/9ED2464D45F0AD5A862579A0005E5B5F.0001): Shaft, Control Drive Gear. TMT Research Development Inc · PMA PQ3975CE · Replaces 80890 · Dec 26, 2011 - [80888TMT](https://drs.faa.gov/browse/excelExternalWindow/B6B2EFD625A5D1218625799F006D1E2F.0001): Gear, Driver-Control. TMT Research Development Inc · PMA PQ3975CE · Replaces 80888 · Nov 8, 2011 - [745112TMT](https://drs.faa.gov/browse/excelExternalWindow/9FF112045998D6F88625799F006D1DF4.0001): Rivet-Split, Fillister. TMT Research Development Inc · PMA PQ3975CE · Replaces 745112 · Nov 8, 2011 - [745112TMT](https://drs.faa.gov/browse/excelExternalWindow/FDE18028E8763CBE8625799F006D1E66.0001): Rivet-Split, Fillister. TMT Research Development Inc · PMA PQ3975CE · Replaces 745112 · Oct 5, 2011 - [80888TMT](https://drs.faa.gov/browse/excelExternalWindow/DA01DF997287987B8625799F006D1E98.0001): Gear, Driver-Control. TMT Research Development Inc · PMA PQ3975CE · Replaces 80888 · Oct 5, 2011 - [80884TMT](https://drs.faa.gov/browse/excelExternalWindow/F46F23518AC6D39B86257910006413D0.0001): Shaft, Main Drive. TMT Research Development Inc · PMA PQ3975CE · Replaces 80884 · Jul 18, 2011 - [80904TMT](https://drs.faa.gov/browse/excelExternalWindow/E150B228285F0344862577A400569753.0001): Washer, Thrust. TMT Research Development Inc · PMA PQ3975CE · Replaces 80904 · Jun 2, 2010 - [414471TMT](https://drs.faa.gov/browse/excelExternalWindow/BC68850E7C51B9E986257736006F365D.0001): Pin. TMT Research Development Inc · PMA PQ3975CE · Replaces 414471 · Mar 10, 2010 - [446-3-90TMT](https://drs.faa.gov/browse/excelExternalWindow/6B37474A72A7FB1D86257736006F3688.0001): Screw - Machine - Flathead. TMT Research Development Inc · PMA PQ3975CE · Replaces 446-3-90 · Mar 10, 2010 - [390940TMT](https://drs.faa.gov/browse/excelExternalWindow/7741F9D353CC1F4A86257632006B606A.0001): Gearshaft, Main Oil Pump. TMT Research Development Inc · PMA PQ3975CE · Replaces 390940 · Jun 8, 2009 - [388505TMT](https://drs.faa.gov/browse/excelExternalWindow/CF3473818F5EEA06862574A6005C2149.0001): Housing. TMT Research Development Inc · PMA PQ3975CE · Replaces Pratt & Whitney 388505 · Oct 13, 2007 - [545073TMT](https://drs.faa.gov/browse/excelExternalWindow/4B30521F736E593286257552004CB9EE.0001): Adjuster. TMT Research Development Inc · PMA PQ3975CE · Replaces 545073 · Jul 4, 2007 All of them: https://openairdocs.org/engine/pratt-whitney-jt12a-8/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.