# U/A Canada PT6A-21 - Type: Engine model (FAA registry) - Registry code: 61572 - Manufacturer (registry): U/A CANADA - Model: PT6A-21 - Engine type: Turbo-prop - Power: 550 hp - Data sheet: [TCDS E4EA](https://openairdocs.org/tcds/E4EA) (OpenAirDocs) - Holder: Pratt & Whitney Canada Corp. - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/u-a-canada-pt6a-21 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 2014-11-05](https://openairdocs.org/ad/2014-11-05): Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallops · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 18 more. Effective Aug 5, 2014 - [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13): Turbine Exhaust Ducts · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 20 more. Effective Dec 31, 2002 - [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997 - [AD 92-15-11](https://openairdocs.org/ad/92-15-11): Compressor Delivery Air Line (P3) Filter Assembly · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-21 and 7 more. Effective Aug 17, 1992 - [AD 80-08-12](https://openairdocs.org/ad/80-08-12): Fuel Pump Drive Coupling Splines · Pratt & Whitney Canada PT6A-11, PT6A-112, PT6A-135 and 24 more. Effective Apr 18, 1980 ## Information bulletins (advisory) (1) - [SAIB NE-12-04](https://openairdocs.org/saib/NE-12-04): Turbine/ Turboprop Engine: Reduction Gearbox. Issued Nov 1, 2011 ## 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 (310, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR G1IA20260702112](https://openairdocs.org/sdr/G1IA20260702112), Jul 2, 2026: FCU. FAULTED. DURING CRUISE FLIGHT, LEFT ENGINE STARTED TO SURGE THEN LOST PARTIAL POWER. DECLARED EMERGENCY WITH ATC AND PROCEEDED DIRECT TO KPHX UTILIZING ASYMMETRIC THRUST - [SDR 2026F00118](https://openairdocs.org/sdr/2026F00118), Jun 3, 2026: COMPRESSOR. FAULTED. LOSS OF TORQUE AND RPM TO THE PROP, CURRENTLY UNSURE IF PGB CAUSED ENGINE FAILURE OR IF THE ENGINE FAILED. AFTER SPINNING THE COMPRESSOR BY HAND IT WAS NOTED TH - [SDR YQSA20250205001](https://openairdocs.org/sdr/YQSA20250205001), Feb 4, 2025: WARNING MESSAGE. ACTIVATED. CRUISING AT FL230 WHEN ITT ON RIGHT SPIKED TO 900-1000 DEGREES C. TORQUE FELL SHORTLY AFTER DROPPING TO "0". RPM WAS 200RPM FROM PROP WINDMILLING. IDENTIFIED RI - [SDR 2024FA0000632](https://openairdocs.org/sdr/2024FA0000632), Aug 23, 2024: TRANSDUCER. FAILED. IN LATE JUNE 2023 AFTER LANDING AT WICK SCOTLAND ON A TRANSATLANTIC OUR FERRY PILOT NOTICED A SUBSTANTIAL AMOUNT OF OIL LEAKING OUT UNDER THE AIRCRAFT, TROUBLES - [SDR G1IA202312107053](https://openairdocs.org/sdr/G1IA202312107053), Dec 7, 2023: UNKNOWN. UNKNOWN. DURING OUR TRAINING FLIGHT WE NOTICED THE R OIL PRESSURE ANNUNCIATOR FLICKERING. THE RIGHT OIL PRESSURE GAUGE CONFIRMED LOW OIL PRESSURE WITH A READING HOVERING - [SDR G1IA20231207053](https://openairdocs.org/sdr/G1IA20231207053), Dec 7, 2023: UNKNOWN. UNKNOWN. DURING OUR TRAINING FLIGHT WE NOTICED THE R OIL PRESSURE ANNUNCIATOR FLICKERING. THE RIGHT OIL PRESSURE GAUGE CONFIRMED LOW OIL PRESSURE WITH A READING HOVERING - [SDR 2023F00340](https://openairdocs.org/sdr/2023F00340), Nov 29, 2023: MOTOR. ARCED. DURING A SCHEDULED INSPECTION THE ELECTRICAL CONNECTION ON AIR CONDITIONING COMPRESSOR DRIVE MOTOR WAS FOUND TO BE LOOSE AND SHOWED SIGNS OF ARCING. - [SDR QZJA20211018005](https://openairdocs.org/sdr/QZJA20211018005), Oct 15, 2021: BRAKE CALIPER. CRACKED. AT KSAC ON 10-15-2021, AT 15:24 THE CREW TAXIED TO RUNWAY 20, UPON RECEIVING TAKEOFF CLEARANCE THE CREW TAXIED TO RUNWAY 20AND APPLIED POWER WITH THE BRAKES HEL - [SDR G1IA2021070163014](https://openairdocs.org/sdr/G1IA2021070163014), Jun 23, 2021: FCU. BINDING. UNCOMMANDED VARIATIONS IN #1 ENGINE POWER WITHOUT MOVEMENT OF THE POWER LEVER. REMOVED FUEL CONTROL UNIT AND BENCH CHECKED. FOUND FCU DRIVESHAFT TO BE BINDING I - [SDR G1IA20210513007](https://openairdocs.org/sdr/G1IA20210513007), May 13, 2021: SEAL. LEAKING. LOSS OF OIL PRESSURE ON THE LEFT ENGINE. REPLACED ENGINE DRIVEN FUEL PUMP ACCESSORY DRIVE SEAL. REPLACED PRIMARY GOVERNOR DUE TO LOW OIL PRESSURE. AIRCRAFT RETU - [SDR G1IA20210322771PD](https://openairdocs.org/sdr/G1IA20210322771PD), Mar 20, 2021: FUEL CONTROL. MALFUNCTIONED. UPON APPROACH TO LANDING THE LEFT ENGINE PROPELLER WAS OBSERVED TO ENTER AN OVERSPEED CONDITION FROM 1900 TO 2420 RPM. THE ENGINE WAS SHUT DOWN AS A PRECAUTION - [SDR 2020FA0000427](https://openairdocs.org/sdr/2020FA0000427), Sep 29, 2020: DPU. FAULTED. AIRCRAFT ENROUTE TO PICK-UP PASSENGER RECEIVED "DPU FAIL" IN BOTH EADI/EHSI DISPLAY. PILOT DIVERTED TO KVJI AS PRECAUTION ACTION. AIRCRAFT LANDED WITHOUT ANY IS - [SDR G1IA2020091109447](https://openairdocs.org/sdr/G1IA2020091109447), Sep 9, 2020: ADAPTER. FUMES. CIRCULATION OF SMOKE FUMES IN COCKPIT DURING CRUISE. PILOT OBSERVED USB CHARGING ADAPTER PLUGGED INTO CIGARETTE LIGHTER QUIT WORKING AROUND THE SAME TIME. AIRCR - [SDR G1IA2018100900001](https://openairdocs.org/sdr/G1IA2018100900001), Oct 2, 2018: UNKNOWN. ODOR. DURING CRUISE AT FL120 FROM KE91 TO KFLG PILOT AND CREW NOTED AN UNUSUAL SMELL, REPORTED AS A "HOT GLUE GUN SMELL". PILOT MADE A PRECAUTIONARY LANDING AT KINW W - [SDR G1IA2017021600002](https://openairdocs.org/sdr/G1IA2017021600002), Feb 15, 2017: BLOWER MOTOR. FUMES. THE PILOT REPORTS DURING A FLIGHT FROM KRQE TO KPHX, DURING CRUISE PORTION OF FLIGHT, AN ELECTRICAL BURNING SMELL AND FUMES WERE NOTED IN THE COCKPIT, WITH LIGH - [SDR G1IA201702160001](https://openairdocs.org/sdr/G1IA201702160001), Feb 15, 2017: BLOWER MOTOR. MALFUNCTIONED. THE PILOT REPORTED DURING A FLIGHT FROM KE91 TO KINW, DURING CRUISE PORTION OF FLIGHT, AN ELECTRICAL BURNING SMELL AND FUMES WERE NOTED IN THE COCKPIT AND CABIN - [SDR G1IA20170209947AM](https://openairdocs.org/sdr/G1IA20170209947AM), Feb 9, 2017: RELAY. STUCK. PILOT REPORTED, ENROUTE AT APPROXIMATELY 300 FEET BELOW LEVEL OFF AT 11,000 FEET THE AUTOPILOT WAS DISCONNECTED AND FOUND INVERTER INOPERATIVE. SELECTED NR 2 IN - [SDR G1IA201702011079D](https://openairdocs.org/sdr/G1IA201702011079D), Feb 1, 2017: MOTOR. FUMES. THE PILOT REPORTED DURING A FLIGHT, DURING CRUISE PORTION OF FLIGHT, AN ELECTRICAL BURNING ODOR AND FUMES WERE NOTED IN THE COCKPIT, WITH LIGHT SMOKE OBSERVED. - [SDR G1IA2017020100001](https://openairdocs.org/sdr/G1IA2017020100001), Jan 27, 2017: BLOWER MOTOR. FAILED. THE PILOT REPORTS WHILE RELOCATING THE AIRCRAFT FROM KLND TO KOGD. DURING CRUISE PORTION OF FLIGHT, NOTED HEATER BLOWER MOTOR STOPPED WORKING, AND SHORTLY THERE - [SDR 2016F00197](https://openairdocs.org/sdr/2016F00197), Oct 1, 2016: ENGINE. FLAMED OUT. PILOT REPORTED RT ENGINE FLAMEOUT AFTER LEVELING OFF FOR CRUISE AT 11,000 FT. FAILED RESTART. SUCCESSFUL LANDING. - [SDR CA160314009](https://openairdocs.org/sdr/CA160314009), Mar 14, 2016: INTERCOSTAL. CRACKED. (CAN) DURING AN INSPECTION OF THE PRESSURIZED AREAS OF THE CABIN, BOTH DOOR HANDLE SUPPORT INTERCOSTAL BRACKETS WERE FOUND CRACKED. ONE BRACKET HAD A 1/2 INCH C - [SDR CA160315016](https://openairdocs.org/sdr/CA160315016), Feb 15, 2016: RIB. CRACKED. (CAN) DURING A SCHEDULED INSPECTION OF THE LT ELEVATOR, THE INBOARD RIB WAS FOUND TO BE CRACKED. IT IS BELIEVED THAT THE REASON THE RIB WAS CRACKED WAS DUE TO T - [SDR CA160301002](https://openairdocs.org/sdr/CA160301002), Feb 11, 2016: ENGINE. MALFUNCTIONED. (CAN) THE AIRCRAFT WAS DEPARTING WHEN THE RIGHT ENGINE HAD AN ISSUE DURING LIFT OFF. THE AUTO FEATHER SYSTEM DID NOT FEATHER THE AFFECTED PROPELLER. AN EMERGENC - [SDR CA160121020](https://openairdocs.org/sdr/CA160121020), Jan 19, 2016: WASHER. WRONG PART. (CAN) SUSPECT UNAPPROVED PART. FLAT WASHER P/N 35-105111-3 LOT#M3286BX QTY 1 AND LOT#212191 QTY 3 RECEIVED BY TRANSPORT CANADA, AIRCRAFT SERVICES STORES. ALL 4 - [SDR CA150923006](https://openairdocs.org/sdr/CA150923006), Sep 21, 2015: LOCK. MISSING. (CAN) DURING PREPARATION FOR RUN-UP IT WAS NOTICED THAT THE PILOT OXYGEN MASK WAS HALFWAY OUT OF IT`S STORAGE POUCH. WHILE RE-STOWING THE MASK IT WAS NOTICED TH - [SDR CA150910003](https://openairdocs.org/sdr/CA150910003), Aug 28, 2015: ENGINE. POWER LOSS. (CAN) IT WAS REPORTED THAT THE ACFT HAD JUST DEPARTED AIRPORT AND WAS CLIMBING THROUGH 300 FT, WHEN A LOUD NOISE WAS HEARD FROM 1 OF THE ENGINES. THE PROPELLER - [SDR VIB420150805001](https://openairdocs.org/sdr/VIB420150805001), Aug 6, 2015: VANE. BROKEN. THIRD STAGE VANE AND SHROUD FAILURE IN NR 1 ENGINE. - [SDR CA160120006](https://openairdocs.org/sdr/CA160120006), Aug 1, 2015: ENGINE. POWER LOSS. (CAN) THE ACFT IMPACTED AIRPORT TERRAIN DURING AN EMERGENCY LANDING ATTEMPT. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE AND 3 OF THE 4 INJURED OCCUPANTS ONBOARD - [SDR 7AJA2015031500001](https://openairdocs.org/sdr/7AJA2015031500001), Mar 15, 2015: BRAKE. BROKEN. AIRCRAFT TOOK OFF FROM AIRPORT WITH NO INDICATION OF ANY DIFFICULTIES IN FLIGHT AND UNEVENTFUL LANDING. UPON PARKING ACFT, PILOT PERFORMED POST FLIGHT INSPECTIO - [SDR 7AJA201503020001](https://openairdocs.org/sdr/7AJA201503020001), Mar 1, 2015: PANEL. BURNED. PILOT SMELLED BURNING ODOR AND SAW SMOKE IN COCKPIT IN FLIGHT, 20 MINS FROM DESTINATION. PILOT OPENED ADF CB IN ASSUMING IT WAS THAT CB THAT WAS SMOKING. INSPEC - [SDR CA150227002](https://openairdocs.org/sdr/CA150227002), Feb 26, 2015: MASTER CYLINDER. UNSERVICEABLE. (CAN) PART INSTALLED IN ACFT, WAS UNABLE TO BLEED BRAKE ON RT PILOT SIDE. WOULD PULL FLUID FROM RESERVOIR, & RETURN FLUID TO RESERVOIR THROUGH SAME LINE. INTERN - [SDR CA150213012](https://openairdocs.org/sdr/CA150213012), Feb 12, 2015: SCREW. BENT. (CAN) RUDDER PEDAL FALLS FULL FORWARD WITHIN THE ADJUSTMENT RANGE. FOUND THE RUDDER PEDAL ADJUSTING LEVER STOP (SCREW - MS24693-S30) BENT. THIS ALLOWED THE ADJU - [SDR 7AJD2015FA0000062](https://openairdocs.org/sdr/7AJD2015FA0000062), Feb 3, 2015: WARNING LIGHT. FALSE ACTIVATION. DURING TAXI PILOT OBSERVED ALL ANNUNCIATOR LIGHTS ILLUMINATED WHILE TAXING OUT FOR DEPARTURE, ACFT RETURNED TO PARKING UNEVENTFULLY. - [SDR CA141201007](https://openairdocs.org/sdr/CA141201007), Nov 24, 2014: ACTUATOR. FAILED. (CAN) SHORTLY AFTER SCHEDULED MAIN GEAR ACTUATOR REPLACEMENT THE GEAR WAS FOUND RETRACTING SLOWLY IN FLIGHT. AT ONE POINT THE GEAR STALLED OUT AND HAD TO BE CYC - [SDR 7AJA20141116009](https://openairdocs.org/sdr/7AJA20141116009), Nov 16, 2014: UNKNOWN. MALFUNCTIONED. CRUISING AT 16000 FEET, THE CABIN TEMP KNOB BECAME LOOSE & WAS UNUSABLE. PULLED THE KNOB OFF SO WOULDN'T LOSE IT. MOVED THE CABIN TEMP MODE SELECTOR SWITCH TO M - [SDR CA141107006](https://openairdocs.org/sdr/CA141107006), Nov 7, 2014: DOUBLER. CRACKED. (CAN) WHILE UNDERGOING REPAIR FOR THE LT ELEVATOR CRACKED INBD CLOSE OUT RIB, THE STA 36.18 DOUBLER, FOR LT ELEVATOR FRONT SPAR, PN 50-610000-387, WAS FOUND TO - [SDR CA141107008](https://openairdocs.org/sdr/CA141107008), Nov 6, 2014: RIB. CRACKED. (CAN) WHILE COMPLYING WITH A COMPANY FLEET CAMPAIGN CN-681-55-20-035 CONSISTING OF A BORESCOPE INSPECTION OF THE ELEVATOR TORQUE TUBE ATTACHMENT, A CRACK WAS DI - [SDR CA141104004](https://openairdocs.org/sdr/CA141104004), Nov 3, 2014: RIB. CRACKED. (CAN) WHILE THE ACFT WAS DOWN FOR MAINTENANCE, ALL GEAR REPLACEMENT, LEFT ELEVATOR CLOSE OUT RIB FOUND WITH TWO SIMILAR CRACKS AT THE TORQUE TUBE ATTACHMENT. ON - [SDR CA141029007](https://openairdocs.org/sdr/CA141029007), Oct 29, 2014: BRACKET. CRACKED. (CAN) DURRING INSPECTION OF AIRCRAFT IT WAS FOUND THAT A CRACK WAS EMINATING FROM AN ATTACH BOLT HOLE FOR ATTACHING TORQUE TUBE. IT WAS NOTED UPPON DISSASSEMBLY - [SDR CA141024016](https://openairdocs.org/sdr/CA141024016), Oct 23, 2014: STRUCTURE. CRACKED. (CAN) WHILE REPLACING LT OTBD HORIZONTAL STABILIZER ELEVATOR BEARING PLATES 50-620000-352 & 50-620000-354, DUE TO LOOSENESS, NUMEROUS CRACKED PARTS WERE FOUND O - [SDR CA141010013](https://openairdocs.org/sdr/CA141010013), Oct 10, 2014: PISTON. CRACKED. (CAN) ACTUATOR PISTON FOUND CRACKED WITH APPROXIMATELY A 4.5" CRACK EMANATING FROM THE ROLL PIN HOLE THAT RETAINS PLUG, PN 50-521196-1. - [SDR CA140929008](https://openairdocs.org/sdr/CA140929008), Sep 29, 2014: DOUBLER. CRACKED. (CAN) DURING MAINTENANCE THE FORWARD DOUBLER AT THE FORWARD EMERGENCY EXIT BULKHEAD FS 196 WAS FOUND CRACKED COMPLETELY THROUGH. DOUBLER REPLACED. - [SDR CA140822005](https://openairdocs.org/sdr/CA140822005), Aug 20, 2014: FEEDER CABLE. CHAFED. (CAN) DURING A DAILY INSPECTION IT WAS NOTICED THAT THE RT ENGINE STARTER GENERATOR WIRING HARNESS WAS CHAFING AGAINST THE IGNITOR BOX. AFTER REMOVING THE HARNE - [SDR CA140414002](https://openairdocs.org/sdr/CA140414002), Apr 11, 2014: FILTER. DIRTY. (CAN) DURING THE OPS-1 INSPECTION AND FOLLOWING THE "SCHEDULED INSPECTION PROGRAM", PHASE 1, MAINTENANCE PRACTICES, LJ-1063 AND AFTER, ITEM F.11.A. PERFORM THE - [SDR LJEA20140320001](https://openairdocs.org/sdr/LJEA20140320001), Mar 17, 2014: FUEL CONTROL. FAULTY. DURING DESCENT REDUCED POWER LEVERS TO IDLE, RT ENG WOULD NOT DECREASE BELOW 80 PERCENT N1, 500 PDS TORQUE, NORMAL SETTINGS 63 PERCENT & 100 PDS. INFORMED TOWER - [SDR CA140227003](https://openairdocs.org/sdr/CA140227003), Feb 27, 2014: POWERPACK. FAILED. (CAN) THE PILOTS REPORTED THAT WHEN THEY SELECTED GEAR UP THE SELECTOR WENT UP BUT THE GEAR DID NOT MOVE. THE 60 AMP MOTOR CIRCUIT BREAKER WAS FOUND TO BE POPPE - [SDR CA140212004](https://openairdocs.org/sdr/CA140212004), Feb 11, 2014: PISTON. CRACKED. (CAN) WHILE DOING ROUTINE MAINTENANCE, WE RETRACTED THE FLAPS AND HEARD A CHATTERING SOUND AT THE TOP OF THE TRAVEL. THE FLAPS WERE DEPLOYED AND WE NOTICED A CR - [SDR CA140131002](https://openairdocs.org/sdr/CA140131002), Jan 30, 2014: TUBE. WORN. (CAN) DURING A ROUTINE PRE-FLIGHT INSPECTION OF THE OIL LEVEL ON THE LEFT ENGINE, THE FIRST ONE CHECKED, INDICATED THAT OIL NEEDED TO BE ADDED. DURING THE ADDIT - [SDR 7AJA20131227008](https://openairdocs.org/sdr/7AJA20131227008), Dec 24, 2013: ENGINE. MALFUNCTIONED. PILOT REPORTED THAT WHILE IN ROUTE, SMELLED WHAT HE THOUGHT WOULD BE ENG OIL SMOKE. HE WAS CLOSE TO DESTINATION AT THE TIME SO HE SHUT OFF THE ENG BLEED VLVS & - [SDR CA131205002](https://openairdocs.org/sdr/CA131205002), Nov 29, 2013: ARM. SEPARATED. (CAN) PILOT REPORTED THAT THE RT ENGINE ICE FAIL LIGHT CAME ON IN FLIGHT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THAT THE ACTIVATION ARM HAD SEPARATED FROM All 310: https://openairdocs.org/engine/u-a-canada-pt6a-21/reports.md ## STCs that may be installed (OpenAirDocs) (18) 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 SE000EN](https://openairdocs.org/stc/SE000EN): Engines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 4, dated 8/16/95. MORE Company Inc - [STC SE10947SC](https://openairdocs.org/stc/SE10947SC): The conversion of the Pratt & Whitney Canada, Model PT6A-21 to a PT6A-28 turboprop engine. Prime Turbines - [STC SE02837NY](https://openairdocs.org/stc/SE02837NY): The conversion of the Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-28 engine to be done. Rocky Mountain Aircraft - [STC SE02290NY](https://openairdocs.org/stc/SE02290NY): Conversion of a Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-27 or -28 engine. Vector Aerospace Engine Services Atlantic Inc - [STC SE00014EN](https://openairdocs.org/stc/SE00014EN): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. Pratt & Whitney Engine Services Inc - [STC SE00020EN](https://openairdocs.org/stc/SE00020EN): Installation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1. Pratt & Whitney Engine Services Inc - [STC SE2960SO](https://openairdocs.org/stc/SE2960SO): Installation of an oil filler cap safety adapter. Jet Avion Corporation - [STC SE615GL](https://openairdocs.org/stc/SE615GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SE01805NY](https://openairdocs.org/stc/SE01805NY): Installation of Fuel Nozzle Adapters using studs and nuts. Atlantic Turbines International Inc - [STC SE09257SC](https://openairdocs.org/stc/SE09257SC): Convert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration. Covington Aircraft Engines, Inc - [STC SE659NE](https://openairdocs.org/stc/SE659NE): Installation of oil tank filler neck check valve, P/N TSA-76A. Aviation Components Support - [STC SE1122EA](https://openairdocs.org/stc/SE1122EA): Repair of combustion chamber small exit duct, P/N 3012060. Airwork Corporation - [STC SE1269EA](https://openairdocs.org/stc/SE1269EA): Stripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc. Airwork Corporation - [STC SE386NE](https://openairdocs.org/stc/SE386NE): Installation of Turbo Products PMA parts. Audco Corporation - [STC SE5601SW](https://openairdocs.org/stc/SE5601SW): Replacement splined end and oil mist lubrication on accessory drive gearshaft. Aviall of Texas, Inc - [STC SE1165EA](https://openairdocs.org/stc/SE1165EA): Assembly and installation of AW10262 wet spline starter gear seal. Airwork Corporation - [STC SE4607SW](https://openairdocs.org/stc/SE4607SW): Revise the starter-generator drive spline to provide lubrication with engine oil. Aviall of Texas, Inc - [STC SE4570SW](https://openairdocs.org/stc/SE4570SW): Revise accessory drive spline, P/N 3008181. Aviall of Texas, Inc ## PMA parts (OpenAirDocs) (462, 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. - [3005293CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122934446820260909150736.0001): Insert, Fuel Control Drive Shaft. Core Parts LLC · PMA PQ05326NM · Replaces 3005293 · Aug 17, 2026 - [3006718LA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175946795220260805155436.0001): STRIP, INSULATING. LanAir Research and Development Inc · PMA PQ1031NE · Replaces 3006718 · Jul 24, 2026 - [3019136CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186981497620260728184309.0001): Ring, Plastic. Core Parts LLC · PMA PQ05326NM · Replaces 3019136 · Jul 10, 2026 - [3012928CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185594574320260728184309.0001): Spacer, Stepped. Core Parts LLC · PMA PQ05326NM · Replaces 3012928 · Jul 10, 2026 - [3045951-02AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135029382220260722151307.0001): Detector, Chip, Magnetic. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3045951-02 · May 27, 2026 - [3012457KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180930006920260616142156.0001): Seal, Ring, Non-Metallic. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3012457 · Mar 24, 2026 - [3012456KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167574484520260616142156.0001): Seal, Ring, Non-Metallic. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3012456 · Mar 24, 2026 - [ST3277-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199989902020260311145336.0001): Gasket, Starter Generator. Core Parts LLC · PMA PQ05326NM · Replaces ST3277-01 · Feb 26, 2026 - [3028815CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119353433120260311145425.0001): Sleeve, Propeller Shaft, Oil Transfer. Core Parts LLC · PMA PQ05326NM · Replaces 3028815 · Feb 26, 2026 - [ST3276-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101621452020260311145336.0001): Gasket, Four-Hole. Core Parts LLC · PMA PQ05326NM · Replaces ST3276-01 · Feb 26, 2026 - [3012456ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183964715720260330191202.0001): Seal, Ring, Non-Metallic. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3012456 · Feb 11, 2026 - [3007355CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150958507420260217165221.0001): Spacer, Adjusting. Core Parts LLC · PMA PQ05326NM · Replaces 3007355 · Feb 11, 2026 - [3012457ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117485990820260330191202.0001): Seal, Ring, Non-Metallic. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3012457 · Feb 11, 2026 - [3010671RM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180066927420260204181356.0001): Washer, Flat. Rimark Manufacturing · PMA PQ10018NE · Replaces 3010671 · Jan 28, 2026 - [3010880CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111084696520260108163216.0001): Gasket, Igniter. CORE PARTS LLC · PMA PQ05326NM · Replaces 3010880 · Oct 16, 2025 - [3026652ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100977584220260121175611.0001): Seal, Plain. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3026652 · Sep 10, 2025 - [3034292WFC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166533215020250624152909.0001): Disposable Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3034292, 3034293, 3958257-01, 3028419… · Jun 2, 2025 - [3034507WFC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141045710620250624152910.0001): Cleanable Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3017383, 3020967, 3022069, 3022070… · Jun 2, 2025 - [3034393WFC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100181403420250624152909.0001): Disposable Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3034393, 3033315, 3059257-01, 3028419… · Jun 2, 2025 - [WF344763](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115254655320250602133049.0001): Nozzle Cover, Machined. Donaldson Company Inc · PMA PQ2432CE · Replaces 3120869-01, Alternate: 3019491… · May 23, 2025 - [3115091-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180857219920250923184724.0001): Ball, Plastic, 0.750. CORE PARTS LLC · PMA PQ05326NM · Replaces 3115091-01 · Feb 13, 2025 - [3058971-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110906306720250923184724.0001): Valve Assy, Oil Filler Tube. CORE PARTS LLC · PMA PQ05326NM · Replaces 3058971-01 · Feb 13, 2025 - [3049871-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134847727520260108162918.0001): Washer, Key. CORE PARTS LLC · PMA PQ05326NM · Replaces 3049871-01 · Jan 17, 2025 - [3116033-01ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183380911920250127211157.0001): Gasket, Eight-Hole. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3116033-01 · Dec 18, 2024 - [3012414AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169774044220250106202801.0001): Nut, Self-Locking, 12 Point. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3012411 · Dec 10, 2024 - [3012414AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164469161820250106202800.0001): Nut, Self-Locking, 12 Point. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3012413 · Dec 10, 2024 - [3012414AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152753542620250106202759.0001): Nut, Self-Locking, 12 Point. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3012414 · Dec 10, 2024 - [3012414AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117377138920250106202801.0001): Nut, Self-Locking, 12 Point. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3012412 · Dec 10, 2024 - [218794ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136891010120241022133827.0001): Washer, CRES. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 218794 · Oct 3, 2024 - [3211-058ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178851531420240926215418.0001): Shim, Nonlaminated. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 3211-058 · Sep 11, 2024 - [3010671CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189963175420241202221129.0001): Washer, Flat. CORE PARTS LLC · PMA PQ05326NM · Replaces 3010671 · Aug 22, 2024 - [3012675AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196954661720240919140845.0001): Nut, Self-Locking, Hex. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3012675, 3005816, 3012674, 3028286… · Aug 7, 2024 - [3015234AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130436253520240919140838.0001): Nut, Self-Locking, Shank. Aero Attitude, LLC · PMA PQ00001CB · Replaces 3015234, 3015233, 3015232, 3016299… · Aug 7, 2024 - [3006523CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132375139220240509162259.0001): Bearing, Sleeve, Flanged. CORE PARTS LLC · PMA PQ05326NM · Replaces 3006523 · Mar 25, 2024 - [3008676CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120421035120240509162301.0001): Bearing, Sleeve, Flanged. CORE PARTS LLC · PMA PQ05326NM · Replaces 3008676 · Mar 25, 2024 - [3003987CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125662034220231204145325.0001): Pin, Lock. CORE PARTS LLC · PMA PQ05326NM · Replaces 3003987 · Aug 1, 2023 - [3016598CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189342823620231204151230.0001): Washer, Key. CORE PARTS LLC · PMA PQ05326NM · Replaces 3016598 · Jul 26, 2023 - [ST6202-011CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121242960820241204145238.0001): Packing, Preformed. CORE PARTS LLC · PMA PQ05326NM · Replaces ST6202-011 · Jun 15, 2023 - [3005290CLACP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171588224920250611143002.0001): Weight, Balance, Compressor. CORE PARTS LLC · PMA PQ05326NM · Replaces 3005290CLA · May 19, 2023 - [3005290CLECP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142064254420250611143003.0001): Weight, Balance, Compressor. CORE PARTS LLC · PMA PQ05326NM · Replaces 3005290CLE · May 19, 2023 - [3005290CLDCP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141205886020250611143003.0001): Weight, Balance, Compressor. CORE PARTS LLC · PMA PQ05326NM · Replaces 3005290CLD · May 19, 2023 - [3005290CLBCP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118455233520250611143003.0001): Weight, Balance, Compressor. CORE PARTS LLC · PMA PQ05326NM · Replaces 3005290CLB · May 19, 2023 - [3005290CLCCP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103292467820250611143003.0001): Weight, Balance, Compressor. CORE PARTS LLC · PMA PQ05326NM · Replaces 3005290CLC · May 19, 2023 - [CH92106-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182950761420231024191314.0001): Exciter-Ignition. Champion Aerospace LLC · PMA PQ1287CE · Replaces Champion… · May 12, 2023 - [CH92106-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182423481520231024191312.0001): Exciter-Ignition. Champion Aerospace LLC · PMA PQ1287CE · Replaces Pratt & Whitney Canada … · May 12, 2023 - [CH92106-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170076831020231024191315.0001): Exciter-Ignition. Champion Aerospace LLC · PMA PQ1287CE · Replaces Unison10-381550-110-381550-49047840-190… · May 12, 2023 - [TA3057-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161272206620230515183738.0001): Turbine Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · May 5, 2023 - [TA3057-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146529815220230515183804.0001): Turbine Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · May 5, 2023 - [3244745-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174285154120241024194519.0001): Fuel Control Turboprop. Honeywell International Inc. · PMA PQ1222NM · Replaces 3244745-4 · May 2, 2023 - [RM3022375](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197353719220230503123945.0001): Seal, Plain. Rimark Manufacturing · PMA PQ10018NE · Replaces 3022375 · Apr 19, 2023 All of them: https://openairdocs.org/engine/u-a-canada-pt6a-21/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.