# Pratt & Whitney JFTD12A-5A - Type: Engine model (FAA registry) - Registry code: 51504 - Manufacturer (registry): P & W - Model: JFTD12A-5A - Engine type: Turbo-shaft - Power: 4,800 hp - Data sheet: [TCDS E15EA](https://openairdocs.org/tcds/E15EA) (OpenAirDocs) - Holder: Erickson Incorporated DBA Erickson Air-Crane - Installed in: 8 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-jftd12a-5a 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 97-02-13](https://openairdocs.org/ad/97-02-13): Disk rupture · Pratt & Whitney Division JFTD12A-4A (T73P-1) and JFTD12A-5A (T73-P-700). Effective Apr 4, 1997 - [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 ## Registered aircraft (8) - [N178AC](https://openairdocs.org/aircraft/N178AC): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1971, S/N 64097 - [N600HX](https://openairdocs.org/aircraft/N600HX): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1968, S/N 64081 - [N610HX](https://openairdocs.org/aircraft/N610HX): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1967, S/N 64F5001 - [N715HT](https://openairdocs.org/aircraft/N715HT): [U S Leaseco Inc](https://openairdocs.org/faa-owner/U%20S%20LEASECO%20INC), [Aurora, OR](https://openairdocs.org/faa-place/OR/Aurora), built 1969, S/N 69-18470 - [N716HT](https://openairdocs.org/aircraft/N716HT): [U S Leaseco Inc](https://openairdocs.org/faa-owner/U%20S%20LEASECO%20INC), [Aurora, OR](https://openairdocs.org/faa-place/OR/Aurora), built 1969, S/N 69-18484 - [N718HT](https://openairdocs.org/aircraft/N718HT): [U S Leaseco Inc](https://openairdocs.org/faa-owner/U%20S%20LEASECO%20INC), [Aurora, OR](https://openairdocs.org/faa-place/OR/Aurora), built 1969, S/N 69-18467 - [N721HT](https://openairdocs.org/aircraft/N721HT): [U S Leaseco Inc](https://openairdocs.org/faa-owner/U%20S%20LEASECO%20INC), [Aurora, OR](https://openairdocs.org/faa-place/OR/Aurora), built 1969, S/N 69-18466 - [N722HT](https://openairdocs.org/aircraft/N722HT): [US Leaseco Inc](https://openairdocs.org/faa-owner/US%20LEASECO%20INC), [Aurora, OR](https://openairdocs.org/faa-place/OR/Aurora), built 1969, S/N 69-18468 ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports (3) 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. - [Incident 20131116023269I](https://openairdocs.org/incident/20131116023269I), Nov 16, 2013: Erickson S64F (N171AC), Houston, TX, No damage. A lift occurred on November 16, 2013, where the crew and aircraft dropped an empty sling harness from the aircraft causing minor building damage in the safe… - [Incident 20110607013519I](https://openairdocs.org/incident/20110607013519I), Jun 7, 2011: Erickson S64F (N237AC), Plaster City, CA, No damage. On June 7, 2011, a san diego gas & electric SK-64F , N237AC, an Erickson air crane, operating under external load certificate no. 85DL967M,was performing an… - [Incident 20020521012449I](https://openairdocs.org/incident/20020521012449I), May 21, 2002: Skrsky CH54B (N716HT), Corvallis, OR. (-23) The rotorcraft approached the east end of taxiway alpha to land on the ramp when another aircraft radioed intent to taxi onto runway 27 via taxiway… ## Service difficulty reports (32) As reported by operators and repair stations, by the model named in the report. - [SDR JYDR20201013282](https://openairdocs.org/sdr/JYDR20201013282), Oct 13, 2020: ATTACH BOLT. BROKEN. PILOTS SUDDENLY FELT A VIBRATION AND HEARD A HOWLING NOISE. THEY RETURNED TO THE LANDING SITE AND SHUT DOWN. AT INSPECTION, MAINTENANCE FOUND 1 OF 3 NAS628-15 B - [SDR JYDR20201008218](https://openairdocs.org/sdr/JYDR20201008218), Oct 7, 2020: ENGINE. OVERTEMP. AIRCRAFT WAS ON SHORT FINAL AT 50 FT AGL WHEN NR 1 ENGINE LOW SPEED CHIME CAME ON. PILOT NOTED DECREASING N1 RPM WITH RISING T% (ROLLBACK). PROPER ENGINE IDENTI - [SDR JYDR20180713190](https://openairdocs.org/sdr/JYDR20180713190), Jul 11, 2018: DISC. CRACKED. DURING INSPECTION IAW AD 97-02-13 USING AMOC LETTER. 6 CRACKS WERE FOUND AT THE TIE BOLT THROUGH HOLES. CRACKS WERE FOUND WITH BOTH FPI AND EDDY CURRENT. AD STA - [SDR JYDR20160422098](https://openairdocs.org/sdr/JYDR20160422098), Apr 21, 2016: BEARING RACE. CRACKED. FOUND HORIZONTAL HINGE PIN INNER BEARING RACE CRACKED DURING REPAIR. MRH HAD 292.3 HRS. REMAINING TO O/H. MFG HAS BEEN INFORMED. - [SDR CA150511015](https://openairdocs.org/sdr/CA150511015), May 9, 2015: SOLENOID. DEFECTIVE. (CAN) UNCOMMANDED INADVERTENT RELEASE OF LOWER HOOKS. - [SDR JYDR2013110800239](https://openairdocs.org/sdr/JYDR2013110800239), Nov 8, 2013: SERVO. WORN. DURING A SCHEDULED MAIN GEAR BOX CHANGE, THE LT LATERAL PRIMARY SERVO WAS FOUND TO HAVE A SEVERELY WORN BOLT AND BUSHING AT THE LOWER PIVIT FOLLOW UP ARM. SERVO - [SDR JYDR2013110801239](https://openairdocs.org/sdr/JYDR2013110801239), Nov 8, 2013: SERVO. WORN. DURING A SCHEDULED MAIN GEAR BOX CHANGE, THE LT LATERAL PRIMARY SERVO WAS FOUND TO HAVE A SEVERELY WORN BOLT AND BUSHING AT THE LOWER PIVIT FOLLOW UP ARM. SERVO - [SDR 2009FA0000042](https://openairdocs.org/sdr/2009FA0000042), Jan 8, 2009: NUT. CRACKED. DURING THE DISASSEMBLY OF THE MRH, 1 NUT WAS FOUND CRACKED. THE NUT IS CRACKED THROUGH ON ONE SIDE AND RUNS THE LENGTH OF THE NUT. THE UNT IS ONE OF (2) THAT SE - [SDR 2006FA0000951](https://openairdocs.org/sdr/2006FA0000951), Sep 8, 2006: AXLE. CRACKED. (REF NR: MDR06-091) UPON DISASSEMBLY, AXLE WAS FOUND TO BE CRACKED AND RUNS AROUND THE CIRCUMFERENCE. THE TRACTURE APPEARS TO ROIGINATE IN THE WELD ON THE CENTE - [SDR JYD2006F00000](https://openairdocs.org/sdr/JYD2006F00000), Dec 9, 2005: BEARING. SPALLED. BEARING OUTER RACE SPALLED AND CRACKED. SPALLING AND CRACK ARE ON NR1 BEARING ROW ONLY. CRACK IS APPROXIMATELY 2.25 INCHES LONG. PROBABLE CAUSE IS UNKNOWN. THE - [SDR 2005FA0000820](https://openairdocs.org/sdr/2005FA0000820), Apr 13, 2005: TURBINE BLADES. BROKEN. COMPRESSOR ASSY WAS REMOVED FROM AC FOR FAILING VIBRATION ANALYSIS. DURING THE PRELIMINARY INSPECTION IT WAS NOTED THAT A PIECE OF 2ND STAGE TURBINE BLADE OUTER - [SDR 2005FA0000818](https://openairdocs.org/sdr/2005FA0000818), Mar 2, 2005: DUCT. CRACKED. NR 1 ENGINE REMOVED FROM ACFT, DUE TO 5 INCH AXIAL BULGE AT OUTER TURBINE CASE, 2-3 OCLOCK POSITION WITH APPROX .5625 INCH HORIZONTAL CRACK RUNNING THROUGH CENT - [SDR 2005FA0000817](https://openairdocs.org/sdr/2005FA0000817), Feb 14, 2005: THRUST WASHER. WORN. MAIN GEAR BOX, SN A6051 REMOVED FOR BRASS CONTAMINATION. UPON DISASSEMBLY DISCOVERED BRASS MATERIAL WAS FROM SECOND STAGE PLANETARY THRUST WASHERS. 34 OUT OF 36 - [SDR 2005FA0000340](https://openairdocs.org/sdr/2005FA0000340), Jan 10, 2005: BEARING RACE. CRACKED. (MDR05-072) THE MRH SLEEVE AND SPINDLE ASSY DEVELOPED AN OIL LEAK WHILE ON AIRCRAFT AND WAS NOTED DURING ROUTE INSPECTION. UPON REMOVAL AND REPLACEMENT WITH A S - [SDR JYDRMDR04069](https://openairdocs.org/sdr/JYDRMDR04069), Dec 6, 2004: HOUSING. CRACKED. MGB WAS REMOVED FOR MAIN SHAFT REPLACEMENT AND OVERHAUL. AFTER DISASSEMBLY OF GEAR BOX, THE UPPER HOUSING WAS LOCALLY BLENDED, ETCHED UNDER THE INPUTS AND INSPE - [SDR MDR03032](https://openairdocs.org/sdr/MDR03032), Oct 2, 2004: BLEED VALVE. OBSTRUCTED. NR 1 ENG OIL PRESS WAS INDICATING LOWER THAN NR 2 ENG. PRESS INDICATED 45 PSI. ADJUSTED PRESS VALVE TO INCREASE CHECK AT NEXT FLT. NR 1 ENG WAS STARTED, INDICAT - [SDR 2004F00286](https://openairdocs.org/sdr/2004F00286), Jul 13, 2004: DUCT. CRACKED. DURING DISASSEMBLY OF N1 SECTION, IT WAS NOTICED THAT THERE WAS A LARGE PIECE OF MATERIAL WEDGED IN BETWEEN TWO 1ST STAGE BLADES. UPON FURTHER DISASSEMBLY/INVES - [SDR MDR03039](https://openairdocs.org/sdr/MDR03039), Dec 15, 2003: ATTACH ANGLE. CRACKED. DURING A SCHEDULED INSPECTION, LT ATTACH ANGLE, PN 6420-66340-105, WAS FOUND CRACKED AT STA 767.8 LBL 5.5, WL 177.1. THE CRACK ORIGINATED AT THE BOTTOM HUCK FAS - [SDR 98ZZZX2255](https://openairdocs.org/sdr/98ZZZX2255), Apr 24, 1998: BLADE. FRACTURED. ON 4-24-98, AIRCRAFT WAS ON A FIRE FIGHTING MISSION. DURING CLIMB-OUT, A LOUD 'BANG' SOUND OCCURRED, FOLLOWED BY A LEFT YAW. THE LOAD OF WATER WAS JETTISONED AN - [SDR 98ZZZX68](https://openairdocs.org/sdr/98ZZZX68), Dec 9, 1997: CASE. CRACKED. WHILE INSTALLED, AFT FLANGE OF CASE SN 225 FRACTURED 360 DEGREES WITHIN THE FLANGE WELD JOINT. FRACTURING OF AFT FLANGE ASSY ELIMINATED THE AFT MOUNT FROM ENG S - [SDR 97ZZZX4464](https://openairdocs.org/sdr/97ZZZX4464), Sep 30, 1997: BEARING. FAILED. BEARING REMOVED FROM ENG DURING OVERHAUL WITH TT OF 1691.6 HRS. DURING OVERHAUL, BEARING WAS INSPECTED AND 2 UNUSUAL CONDITIONS FOUND: BALLS EXHIBITED SEVERE SC - [SDR 970326](https://openairdocs.org/sdr/970326), Mar 13, 1997: AIR SEAL. CRACKED. ON MARCH 13, 1997, COMPRESSOR ASSY S/N 677775 WAS SCHEDULED FOR AN OVERHAUL, W.O. NR 25419. TEAR DOWN WAS COMPLETED ON MARCH 14, 1997, WITH NO PROBLEMS. THE AIR - [SDR 97ZZZX853](https://openairdocs.org/sdr/97ZZZX853), Feb 11, 1997: BEVEL GEARSHAFT. CRACKED. FOUND CRACK INDICATIONS DURING FMPI INSIDE SQUARE DRIVE OF GEARSHAFT. INDICATORS APPEAR SHARP. A WELL DEFINED CRACK-TYPE INDICATION IS SEEN INSIDE CORNERS OF SH - [SDR 97ZZZX854](https://openairdocs.org/sdr/97ZZZX854), Feb 11, 1997: BEVEL GEARSHAFT. CRACKED. FOUND CRACK INDICATIONS DURING FMPI INSIDE SQUARE DRIVE OF GEARSHAFT. INDICATORS APPEAR SHARP. A WELL DEFINED CRACK-TYPE INDICATION IS SEEN INSIDE CORNERS OF SH - [SDR 97ZZZX855](https://openairdocs.org/sdr/97ZZZX855), Feb 11, 1997: BEVEL GEARSHAFT. CRACKED. FOUND CRACK INDICATIONS DURING FMPI INSIDE SQUARE DRIVE OF GEARSHAFT. INDICATORS APPEAR SHARP. A WELL DEFINED CRACK-TYPE INDICATION IS SEEN INSIDE CORNERS OF SH - [SDR 97ZZZX856](https://openairdocs.org/sdr/97ZZZX856), Feb 11, 1997: BEVEL GEARSHAFT. CRACKED. FOUND CRACK INDICATIONS DURING FMPI INSIDE SQUARE DRIVE OF GEARSHAFT. INDICATORS APPEAR SHARP. A WELL DEFINED CRACK-TYPE INDICATION IS SEEN INSIDE CORNERS OF SH - [SDR 96ZZZX5190](https://openairdocs.org/sdr/96ZZZX5190), Jun 25, 1996: TABLOCK. MISSING. TABLOCK FOUND MISSING AT POST-FLIGHT INSPECTION ON 6-25-96. THE LAST OVERHAUL WAS PERFORMED BY SABRELINER. WHEN INSPECTING THE COMPRESSOR THROUGH THE INLET, CON - [SDR 96ZZZX5191](https://openairdocs.org/sdr/96ZZZX5191), Apr 26, 1996: TABLOCK. MISSING. TABLOCK FOUND MISSING AT PRE-FLIGHT INSPECTION CONDUCTED ON 4-26-96. THE LAST OVERHAUL PERFORMED BY EAC ON 8-4-94. WHEN INSPECTING THE COMPRESSOR THROUGH THE IN - [SDR 96ZZZX5313](https://openairdocs.org/sdr/96ZZZX5313), Jan 26, 1996: TABLOCK. MISSING. TABLOCK FOUND MISSING AT HIDDEN DAMAGE INSPECTION CONDUCTED ON COMPRESSOR BEING PROCESSED INTO THE REPAIR STATION ON 1-26-96. THE LAST OVERHAUL WAS PERFORMED BY - [SDR 96ZZZX5192](https://openairdocs.org/sdr/96ZZZX5192), Dec 2, 1995: TABLOCK. MISSING. ENGINE FAILED INTERNALLY AT FIRST LIFT-OFF OF THE DAY. TABLOCK FOUND MISSING 12-2-95. THE LAST OVERHAUL PERFORMED BY EAC ON 1-6-94. WHEN INSPECTING COMPRESSOR T - [SDR 96ZZZX5193](https://openairdocs.org/sdr/96ZZZX5193), Aug 22, 1995: TABLOCK. MISSING. ENGINE REMOVED FOR HSI. TABLOCK FOUND MISSING AT HIDDEN DAMAGE INSPECTION CONDUCTED ON COMPRESSOR BEING INDUCTED IN REPAIR STATION ON 8-22-95. THE LAST OVERHAUL - [SDR 95ZZZX2154](https://openairdocs.org/sdr/95ZZZX2154), Jan 24, 1995: DISK. PITTED. P AND W SB 1508, REQUIRES ALL ENGINES TO BE COMPLETELY DISASSEMBLED TO CONDUCT A CORROSION INSPECTION EVERY 7 YEARS. SERIOUS CORROSION PITTING FOUND WHEN CONVER ## PMA parts (OpenAirDocs) (388, 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. - [745112TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194317500420260616140917.0001): Rivet–Split, Fillister. Source Manufacturing Inc · PMA PQ1549CE · Replaces 745112 · Apr 10, 2026 - [790450TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194257482820260616140919.0001): Bearing, Sleeve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 790450 · Apr 10, 2026 - [417637TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192285882020260616140920.0001): Gearshaft, Main Oil Pump. Source Manufacturing Inc · PMA PQ1549CE · Replaces 417637 · Apr 10, 2026 - [659330CL1TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190668690320260616140918.0001): Counterweight. Source Manufacturing Inc · PMA PQ1549CE · Replaces 659330CL1 · 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 - [501267TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184063503120260616140919.0001): Ring, Retaining. Source Manufacturing Inc · PMA PQ1549CE · Replaces 501267 · 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 - [575188TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176624874620260616140920.0001): Seal, Air – Free Turbine Inlet. Source Manufacturing Inc · PMA PQ1549CE · Replaces 575188 · Apr 10, 2026 - [426273TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176409759220260616140917.0001): Seal Ring. Source Manufacturing Inc · PMA PQ1549CE · Replaces 426273 · 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 - [501268TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169474205220260616140919.0001): Ring, Retaining. Source Manufacturing Inc · PMA PQ1549CE · Replaces 501268 · 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 - [659330CL2TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147446137020260616140918.0001): Counterweight. Source Manufacturing Inc · PMA PQ1549CE · Replaces 659330CL2 · Apr 10, 2026 - [394708TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147428463920260616140919.0001): Gasket. Source Manufacturing Inc · PMA PQ1549CE · Replaces 394708B · 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 - [587509TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133473561820260616140920.0001): Seal, Air – Free Turbine Rotor. Source Manufacturing Inc · PMA PQ1549CE · Replaces 587509 · Apr 10, 2026 - [673000TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131823038620260616140918.0001): Plug. Source Manufacturing Inc · PMA PQ1549CE · Replaces 673000 · Apr 10, 2026 - [431579TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127677931820260616140913.0001): Coupling. Source Manufacturing Inc · PMA PQ1549CE · Replaces 431579 · Apr 10, 2026 - [668736TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125327944020260616140920.0001): Gearshaft. Source Manufacturing Inc · PMA PQ1549CE · Replaces 668736 · 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 - [419881TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119326239520260616140918.0001): Bolt. Source Manufacturing Inc · PMA PQ1549CE · Replaces 419881 · Apr 10, 2026 - [407395TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117839264120260616140915.0001): Washer, Key. Source Manufacturing Inc · PMA PQ1549CE · Replaces 407395 · Apr 10, 2026 - [406102TMT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114716142420260616140920.0001): Gasket, Valve. Source Manufacturing Inc · PMA PQ1549CE · Replaces 406102B · 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 - [575183](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113978756220250926210552.0001): Seal – Air Free Turbine, 2-Stage. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 575183 · Aug 26, 2025 - [544180SMI](https://drs.faa.gov/browse/excelExternalWindow/E105A386FAD257298625847400613394.0001): Cam Seal. Source Manufacturing Inc · PMA PQ1549CE · Replaces 544180 · Dec 22, 2018 - [332060AA](https://drs.faa.gov/browse/excelExternalWindow/F990FC5037493FB5862580CE00749166.0001): Bolt. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 332060 · Feb 1, 2017 - [370211AA](https://drs.faa.gov/browse/excelExternalWindow/F23F8CE181A9172686257FAE006ADEE6.0001): Retaining Ring. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 370211 · Feb 1, 2017 - [370211AA](https://drs.faa.gov/browse/excelExternalWindow/F22C862CDD0D7237862580CE00749323.0001): Retaining Ring. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 370211 · Feb 1, 2017 - [411826AA](https://drs.faa.gov/browse/excelExternalWindow/F0926053A616657F862580CE007491C7.0001): Ring, Retaining. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 411826 · Feb 1, 2017 - [468246AA](https://drs.faa.gov/browse/excelExternalWindow/ED8BE46A2C2C1DA586257FAE006ADE04.0001): Spacer Assembly, 2nd to 3rd Stage. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 468246 · Feb 1, 2017 - [468246AA](https://drs.faa.gov/browse/excelExternalWindow/EC3D1CA7F8187563862580CE007491AD.0001): Spacer Assembly, 2nd to 3rd Stage. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 468246 · Feb 1, 2017 - [390997AA](https://drs.faa.gov/browse/excelExternalWindow/EB53BDA30894015C862580CE007491B3.0001): Pin, Vane Retaining. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 390997 · Feb 1, 2017 - [405871AA](https://drs.faa.gov/browse/excelExternalWindow/E8DD4DEA9F77BE16862580CE00749126.0001): Spacer. Able Aerospace Services, Inc. · PMA PQ2487NM · Replaces 405871 · Feb 1, 2017 - [374416AA](https://drs.faa.gov/browse/excelExternalWindow/E0DC21BBD3B3643586257FAE006ADE6E.0001): Seal, Fuel Nozzle. Able Engineering and Component Services, Inc. · PMA PQ2487NM · Replaces 374416 · Feb 1, 2017 All of them: https://openairdocs.org/engine/pratt-whitney-jftd12a-5a/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.