# Pratt & Whitney Canada PT6T-3 series

- Type: Engine model (FAA registry)
- Registry code: 52103
- Manufacturer (registry): P&W CANADA
- Model: PT6T-3 SERIES
- Engine type: Turbo-prop
- Power: 900 hp
- Data sheet: [TCDS E22EA](https://openairdocs.org/tcds/E22EA) (OpenAirDocs)
- Holder: Pratt & Whitney Canada Corp.
- Installed in: 17 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-canada-pt6t-3-series

The registry names only the engine series, so ADs for every model in the series are matched.

## 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 79-11-03](https://openairdocs.org/ad/79-11-03): Automatic Fuel Control · Pratt & Whitney Canada PT6T-3 and PT6T-6. Effective May 31, 1979
- [AD 78-17-05](https://openairdocs.org/ad/78-17-05): Automatic Fuel Control Unit · Pratt & Whitney Canada PT6T-3, PT6T-3A and PT6T-6. Effective Aug 31, 1978
- [AD 76-02-08](https://openairdocs.org/ad/76-02-08): Fuel Pump · Pratt & Whitney Canada PT6T-3, PT6T-3A and PT6T-6. Effective Feb 5, 1976

## Registered aircraft (17)

- [N1026Y](https://openairdocs.org/aircraft/N1026Y): [Kuwait International Aircraft Leasing Inc](https://openairdocs.org/faa-owner/KUWAIT%20INTERNATIONAL%20AIRCRAFT%20LEASING%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2005, S/N 36391
- [N143PH](https://openairdocs.org/aircraft/N143PH): [Western USA Solutions Inc](https://openairdocs.org/faa-owner/WESTERN%20USA%20SOLUTIONS%20INC), [Kodiak, AK](https://openairdocs.org/faa-place/AK/Kodiak), S/N 33134
- [N16920](https://openairdocs.org/aircraft/N16920): [Temsco Helicopters Inc](https://openairdocs.org/faa-owner/TEMSCO%20HELICOPTERS%20INC), [Ketchikan, AK](https://openairdocs.org/faa-place/AK/Ketchikan), built 1977, S/N 30865
- [N17LA](https://openairdocs.org/aircraft/N17LA): [San Juan Aviation LLC](https://openairdocs.org/faa-owner/SAN%20JUAN%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1992, S/N 36044
- [N18LA](https://openairdocs.org/aircraft/N18LA): [County Of Los Angeles Fire Department](https://openairdocs.org/faa-owner/COUNTY%20OF%20LOS%20ANGELES%20FIRE%20DEPARTMENT), [Pacoima, CA](https://openairdocs.org/faa-place/CA/Pacoima), built 1992, S/N 36043
- [N212AH](https://openairdocs.org/aircraft/N212AH): [Aspen Helicopters Inc](https://openairdocs.org/faa-owner/ASPEN%20HELICOPTERS%20INC), [Oxnard, CA](https://openairdocs.org/faa-place/CA/Oxnard), built 1979, S/N 30959
- [N212TH](https://openairdocs.org/aircraft/N212TH): [Cougar Aviation LLC](https://openairdocs.org/faa-owner/COUGAR%20AVIATION%20LLC), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), built 1980, S/N 31109
- [N219MG](https://openairdocs.org/aircraft/N219MG): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 1998, S/N 36218
- [N233LC](https://openairdocs.org/aircraft/N233LC): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2000, S/N 36269
- [N281SD](https://openairdocs.org/aircraft/N281SD): [City Of San Diego](https://openairdocs.org/faa-owner/CITY%20OF%20SAN%20DIEGO), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego), built 1980, S/N 31147
- [N411DE](https://openairdocs.org/aircraft/N411DE): [U S Department Of Energy](https://openairdocs.org/faa-owner/U%20S%20DEPARTMENT%20OF%20ENERGY), [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas), built 1991, S/N 36030
- [N470QL](https://openairdocs.org/aircraft/N470QL): [Vertol Systems Co Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20CO%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1989, S/N 33200
- [N621FC](https://openairdocs.org/aircraft/N621FC): [Florida Depart Of Agriculture And Consumer Svcs](https://openairdocs.org/faa-owner/FLORIDA%20DEPART%20OF%20AGRICULTURE%20AND%20CONSUMER%20SVCS), [Tallahassee, FL](https://openairdocs.org/faa-place/FL/Tallahassee), built 1991, S/N 35034
- [N624FC](https://openairdocs.org/aircraft/N624FC): [Florida Forest Service - Fp/Ac](https://openairdocs.org/faa-owner/FLORIDA%20FOREST%20SERVICE%20-%20FP%2FAC), [Tallahassee, FL](https://openairdocs.org/faa-place/FL/Tallahassee), built 1993, S/N 35060
- [N816SS](https://openairdocs.org/aircraft/N816SS): [Hilcorp Equipment LLC](https://openairdocs.org/faa-owner/HILCORP%20EQUIPMENT%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1982, S/N 31209
- [N82W](https://openairdocs.org/aircraft/N82W): [Weyerhaeuser Nr Co](https://openairdocs.org/faa-owner/WEYERHAEUSER%20NR%20CO), [Eugene, OR](https://openairdocs.org/faa-place/OR/Eugene), built 1981, S/N 31177
- [N853QA](https://openairdocs.org/aircraft/N853QA): [Heli-Consignment Inc](https://openairdocs.org/faa-owner/HELI-CONSIGNMENT%20INC), [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago), built 1977, S/N 30815

## NTSB investigations (9)

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 GAA15CA230](https://openairdocs.org/ntsb/GAA15CA230), Aug 17, 2015: Bell 412 (N412LA), Whittier, CA, substantial damage. Probable cause: The pilot's failure to appropriately monitor the helicopter's fuel supply, resulting in fuel exhaustion, loss of engine power, and an autorotation with a hard landing.
- [NTSB FTW04IA217](https://openairdocs.org/ntsb/FTW04IA217), Aug 19, 2004: Bell 412 (N22347), South Pass 65, incident, minor damage. Probable cause: The failure and separation of the tail rotor gearbox for undetermined reasons.
- [NTSB FTW04LA133](https://openairdocs.org/ntsb/FTW04LA133), May 23, 2004: Bell 412 (N555BA), San Antonio, TX, substantial damage. Probable cause: The pilot's failure to maintain clearance with the parked helicopter while performing a hovering turn.
- [NTSB SEA03LA012](https://openairdocs.org/ntsb/SEA03LA012), Nov 22, 2002: Bell 212 (N82W), Longview, WA, substantial damage. Probable cause: The pilot's failure to maintain clearance from trees while landing. A contributing factor was trees.
- [NTSB FTW00LA192](https://openairdocs.org/ntsb/FTW00LA192), Jul 3, 2000: Ayres S2R-G10 (N4061H), Brownfield, TX, substantial damage. Probable cause: The loss of engine power due to the blocked engine intake, which resulted from ingesting birds. Factors were the lack of suitable terrain for the forced landing and the pilot's intentional ground…
- [NTSB BFO94FA071](https://openairdocs.org/ntsb/BFO94FA071), Apr 22, 1994: Bell 412/SP (N70AM), Bluefield, VA, destroyed, 4 fatal. Probable cause: THE PILOT'S FAILURE TO INTERCEPT THE FINAL APPROACH COURSE, AND HIS IMPROPER EXECUTION OF THE INSTRUMENT APPROACH PROCEDURE. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE WEATHER CONDITIONS,…
- [NTSB LAX93T#A02](https://openairdocs.org/ntsb/LAX93T%23A02), Mar 31, 1993: Bell 412 (N412LA), Topanga, CA, no damage
- [NTSB SEA84LA012](https://openairdocs.org/ntsb/SEA84LA012), Oct 20, 1983: Bell 212 (N82W), Coos Bay, OR, substantial damage
- [NTSB FTW83IA053](https://openairdocs.org/ntsb/FTW83IA053), Dec 2, 1982: Bell 412 (N2258F), Intercoastal Ci, LA, incident, no damage

## FAA accident and incident reports (18)

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 20230524004322I](https://openairdocs.org/incident/20230524004322I), May 24, 2023: Bell 412 (N412DE), Indianapolis, IN, Minor damage. On may 24, 2023, [privacy data omitted] was assigned a public operations mission working a grid search just northeast of the [privacy data omitted]. Mission…
- [Incident 20170624015209I](https://openairdocs.org/incident/20170624015209I), Jun 24, 2017: Ayres Corporation S2R-G10 (N4061H), Deer Creek, MN, Minor damage. A thrush S2R-G10 agriculture aircraft was climbing out immediately following a spray pass preparing to enter the next pass. During the climb out, the engine…
- [Accident 20150816022059A](https://openairdocs.org/incident/20150816022059A), Aug 16, 2015: Bell 412 (N412LA), Montebello, CA, Destroyed. This transport category helicopter was dispatched as the command ship for the "montibello hills fire" on Sunday 08/16/2015. It was being operated under part 91…
- [Incident 20040819023639I](https://openairdocs.org/incident/20040819023639I), Aug 19, 2004: Bell 412 (N22347), Venice, LA, Minor damage. (-23) The aircraft lost the tail rotor and the tail rotor gearbox in cruise flight over the gulf of Mexico. The pilot executed an autorotational landing to the…
- [Accident 20040523013099A](https://openairdocs.org/incident/20040523013099A), May 23, 2004: Bell 412 (N555BA), San Antonio, TX, Substantial damage. (-23) On may 23, 2004, at approximately 1605 CDT, a Bell 412 helicopter, N555BA, sustained substantial damage when its tail rotor struck a parked helicopter…
- [Accident 20021122031969A](https://openairdocs.org/incident/20021122031969A), Nov 22, 2002: Bell 212 (N82W), Longview, WA, Substantial damage. (-23) During hover operation main rotor blades struck top of tree causing damage to both blades.
- [Accident 20000703008809A](https://openairdocs.org/incident/20000703008809A), Jul 3, 2000: Ayres S2RG10 (N4061H), Plains, TX, No damage. (-23) Pilot was spraying under state boweevil contract. During application, several doves were spooked out of a field, many of which were hit by the aircraft.…
- [Incident 19990625025139I](https://openairdocs.org/incident/19990625025139I), Jun 25, 1999: Bell 412 (N2148K), Morgan City, LA, Minor damage. (-23) The pilot's crew door came off the aircraft in cruise flight. The aircraft was landed safely on an offshore platform in the gulf of Mexico. Investigation…
- [Incident 19960529040999I](https://openairdocs.org/incident/19960529040999I), May 29, 1996: Bell 412 (N2148K), Lafayette, LA, Minor damage. Landed. Throttle to ground idle. Aft cross tube broke. Aircraft rolled. Broken section stopped rollover. Tube bent.
- [Incident 19950816031019I](https://openairdocs.org/incident/19950816031019I), Aug 16, 1995: Bell 412 (N2148K), Morgan City, LA. Governor failed NR2 engine. Used manual. Returned to Morgan City.
- [Incident 19950517028799I](https://openairdocs.org/incident/19950517028799I), May 17, 1995: Bell 412 (N3893N), Sabine, TX. Pulling pitch to lift to hover. Needles split. Aborted. Replaced governor on NR2 engine.
- [Incident 19950504018629I](https://openairdocs.org/incident/19950504018629I), May 4, 1995: Bell 412 (N3893N), Sabine, TX, Minor damage. Narrative: on may 4, 1995, at 5:41 am, Bell helicopter, model 412, N3893N, operated by petroleum helicopters, inc. (phi), was en route to an offshore platform…
- [Incident 19941125047769I](https://openairdocs.org/incident/19941125047769I), Nov 25, 1994: Bell 412 (N3893N), Lafayette, LA. During hover for takeoff lost NR1 engine max power 85 percent. N1 increasing. Shutdown. Governor fuel control.
- [Accident 19940422009029A](https://openairdocs.org/incident/19940422009029A), Apr 22, 1994: Bell 412 (N70AM), Bluefield, WV, Destroyed, 4 fatal. Impacted 150 yards below mountain top on ILS approach in dense fog. No mechanical defects found. Below glide slope.
- [Incident 19890826054989I](https://openairdocs.org/incident/19890826054989I), Aug 26, 1989: Bell 212 (N5010F), Gulf Of Mexico, LA, Minor damage. Vibration during cruise. Landed safely. Hangar assembly under combining gearbox had deteriorated. Bracket broken.
- [Incident 19881108066499I](https://openairdocs.org/incident/19881108066499I), Nov 8, 1988: Bell 212 (N5010F), New Iberia, LA. Simulated climbout with one engine at idle. Other engine quit. Entered autorotation and recovered. Cause unknown.
- [Accident 19831020055129A](https://openairdocs.org/incident/19831020055129A), Oct 20, 1983: Bell 212 (N82W), Coos Bay, OR, Substantial damage. Picked up to hover with fertilizer bucket attached. Long line snagged a skid. Lost control. Helicopter rolled over.
- [Incident 19821202070569I](https://openairdocs.org/incident/19821202070569I), Dec 2, 1982: Bell 412 (N2258F), Intracoastal Ci, LA. Loud noise and vibration. Made emergency landing, found main rotor yoke flex plate had cracked. AD on item not due.

## Service difficulty reports (421, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2026FA0000648](https://openairdocs.org/sdr/2026FA0000648), Aug 17, 2026: COUPLING. CRACKED. CRACKED AROUND METAL ON COUPLING
- [SDR 2025FA0000642](https://openairdocs.org/sdr/2025FA0000642), Sep 12, 2025: STATIC INVERTER. OVERHEATED. THE CREW CAME OUT FOR A TRAINING FLIGHT, STARTED THE AIRCRAFT JUST FINE AND IDLED ON DECK FOR A FEW MINUTES. UPON TAKE OFF THE #1 INVERTER SWITCH TURNED ITSELF 
- [SDR RV1R2020010800019](https://openairdocs.org/sdr/RV1R2020010800019), Sep 30, 2019: ELASTOMER. FAILED. FAILED ELASTOMER FOUND DURING REMOVAL FOR MAST SEAL REPLACEMENT. THIS PART CAN ONLY BE INSPECTED WITH MR HUB DISASSEMBLED AND THE ONLY REQUIREMENT FOR THIS INSP
- [SDR 2019FA0000239](https://openairdocs.org/sdr/2019FA0000239), Aug 1, 2019: BELLCRANK. LOOSE. THE HELICOPTER EXPERIENCED A TORQUE AND RPM FLUCTUATION SHORTLY AFTER TAKE-OFF. A FAULTY AUTOMATIC FUEL CONTROL UNIT WAS REPLACED. DURING THE ENGINE RIGGING PRO
- [SDR CA190622001](https://openairdocs.org/sdr/CA190622001), Jun 14, 2019: AMPLIFIER. FAILED. (CAN) IT WAS REPORTED TO BELL:DURING BUCKETING OPERATIONS AT APPROX 300 FEET ABOVE GROUND LEVEL, THE PILOT OBSERVED THAT THE #2 ENGINE FIRE LIGHT HAD ILLUMINATE
- [SDR QMLA2016072516085](https://openairdocs.org/sdr/QMLA2016072516085), Jul 25, 2016: WINDSHIELD. CRACKED. ON NR 1 ENGINE START UP THE CO-PILOT WINDSCREEN CRACKED APPROX. 28" ALONG THE LOWER EDGE. THE PILOT SHUT DOWN THE ENGINE AND WROTE UP THE DISCREPANCY. MECHANICS
- [SDR CA160126003](https://openairdocs.org/sdr/CA160126003), Jan 25, 2016: HANGER ASSY. CRACKED. (CAN) CRACKS WERE FOUND ON EACH BOLT HOLE THAT CONNECTS THE TAIL ROTOR DRIVESHAFT HANGER BEARING AND COUPLING ASSY, PN 212-040-600-009 TO THE TAIL BOOM HANGER F
- [SDR CA151110008](https://openairdocs.org/sdr/CA151110008), Nov 3, 2015: FILTER. FAILED. (CAN) DURING A ROUTINE 100 HR P3 FILTER INSPECTION THE ENGINEER REMOVED THE P3 FILTER FROM THE POWER SECTION AND NOTICED THE SCREEN MATERIAL HAD SEPARATED FROM 
- [SDR CA151103005](https://openairdocs.org/sdr/CA151103005), Oct 26, 2015: CARGO HOOK. FAILED. (CAN) INADVERTENT RELEASE OF A LOAD DURING LONGLINE OPERATION. SUSPECT THAT THE SWIVEL USED DID NOT OPERATE CORRECTLY AND IN TURN ALLOWED THE LONGLINE TO TWIST 
- [SDR CA150911005](https://openairdocs.org/sdr/CA150911005), Sep 2, 2015: ENGINE. POWER LOSS. (CAN) WHILE ON APPROACH THE ACFT LOST POWER FROM NR 2ENGINE. CREW MADE A EMERGENCY CALL OUT AND TOOK APPROPRIATE EMERGENCY ACTION TO STABILIZE THE FLIGHT FOR SI
- [SDR CA150820005](https://openairdocs.org/sdr/CA150820005), Aug 12, 2015: FUEL CONTROL. MALFUNCTIONED. (CAN) ACFT WAS LANDING WHEN 1 OF ITS ENGINES LOST POWER. PILOT THEN LANDED THE ACFT UNEVENTFULLY. P3 LINE WAS FOUND BROKEN. THE TUBING WAS REPLACED AND ACFT RET
- [SDR CA150727014](https://openairdocs.org/sdr/CA150727014), Jul 24, 2015: CLUTCH. SLIPPED. (CAN) ON HOIST OPERATION, THE RESCUE SPECIALIST REPORTED A SLIPPAGE FROM THE HOIST CABLE WHILE DESCENDING ON THE SITE. THE UNIT IS NOT INCLUDED IN THE LIST OF A
- [SDR CA150709001](https://openairdocs.org/sdr/CA150709001), Jun 26, 2015: BEARING. SEPARATED. (CAN) THE QUALITY OF RIDE IN THE HELICOPTER DEGRADED AND THE HUMS SYSTEM ALSO HAD INDICATED AN ISSUE. DURING THE INVESTIGATION, IT WAS FOUND THAT THE PIVOT BEAR
- [SDR CA150710012](https://openairdocs.org/sdr/CA150710012), Jun 25, 2015: ENGINE. FAILED. (CAN) DURING APPROACH AT 400-500 FT ALTITUDE, PILOT HEARD A BANGING SOUND, NR 2 ENGINE OIL PRESSURE DROPPED, TEMPERATURE WAS RAISING, CHIP LIGHT ILLUMINATED. PI
- [SDR CA150529005](https://openairdocs.org/sdr/CA150529005), May 27, 2015: CROSSTUBE. BROKEN. (CAN) CROSS TUBE BROKE AT LT AIRFRAME SUPPORT, UNDER THE STEEL WEAR PLATES.
- [SDR CA150602010](https://openairdocs.org/sdr/CA150602010), May 16, 2015: ENGINE. OVERTEMP. (CAN) REPORTED THAT DURING A TRAINING FLIGHT, ENGINE NR 1 OVERTEMPED WHEN GOVERNOR WAS SWITCHED FROM AUTO TO MAN WITH N1 AT 70 PERCENT. GROUND INSPECTION PERFOR
- [SDR CA150325021](https://openairdocs.org/sdr/CA150325021), Mar 19, 2015: PACKING. LEAKING. (CAN) DURING A ROUTINE PASSENGER FLIGHT, AT FULL THROTTLE, AN OIL PRESSURE CAUTION WARNING CAME ON FOLLOWED BY AN ITT SURGE ABOVE 900 DEG C. CREW ELECTED TO SHU
- [SDR CA141202017](https://openairdocs.org/sdr/CA141202017), Nov 8, 2014: COMPRESSOR. DAMAGED. (CAN) ACFT CAME BACK FROM A FLIGHT FOR REFUEL. ENGINE START AFTER THE REFUEL WAS OK. AS THE PILOT STARTED PULLING THE COLLECTIVE, THE LT PS WAS SURGING/VIBRATIO
- [SDR CA141202002](https://openairdocs.org/sdr/CA141202002), Nov 3, 2014: ENGINE. MAKING METAL. (CAN) BEFORE TAKEOFF, PILOT REPORTED THAT THE CHIP DETECTOR CAUTION LIGHT WAS ILLUMINATED, THUS THE PILOT PROCEEDED TO SHUTDOWN THE ENGINE AND THE FLIGHT WAS AB
- [SDR 9EKA20141030012](https://openairdocs.org/sdr/9EKA20141030012), Oct 29, 2014: OIL COOLER. CRACKED. DURING 1000 HOUR INSPECTION OF OIL COOLERS MULTIPLE CRACKS ON VANE WELDS WERE FOUND.
- [SDR CA140917001](https://openairdocs.org/sdr/CA140917001), Sep 16, 2014: PRESSURE SWITCH. LEAKING. (CAN) DURING POST FLIGHT INSPECTION NR 1 ENGINE DECK WAS FOUND TO HAVE FOIL/OIL RESIDUE ON IT BUT NO SOURCE OF THE LEAK WAS FOUND. WITH THE INDUCTION COWL REMOV
- [SDR CA140908028](https://openairdocs.org/sdr/CA140908028), Sep 4, 2014: YOKE. UNSERVICEABLE. (CAN) DURING THE DAILY INSPECTION IT WAS NOTICED THAT 1 TAIL ROTOR YOKE FEATHERING BEARING OUTER RACE STAKE HAD FAILED. UPON FURTHER INVESTIGATION ALL 4 TAIL RO
- [SDR CA140721023](https://openairdocs.org/sdr/CA140721023), Jul 19, 2014: FITTING. CRACKED. (CAN) WHILE PERFORMING A DAILY INSPECTION OF THE ACFT, THE AME NOTICED A THIN BLACK LINE ON THE OUTER END OF THE DRAG BRACE FITTING. AFTER FURTHER INVESTIGATION
- [SDR CA140716009](https://openairdocs.org/sdr/CA140716009), Jul 13, 2014: CROSSTUBE. CRACKED. (CAN) PILOT ON FIRE FIGHTING OPERATIONS HEARD LOUD SNAP SOUND ON LANDING AND ABORTED THE TAKE-OFF. HIGH FORWARD CROSSTUBE FOUND CRACKED OTBD OF LT SADDLE FITTIN
- [SDR CA140710003](https://openairdocs.org/sdr/CA140710003), Jul 8, 2014: TORQUE TUBE. SHEARED. (CAN) DURING A NORMAL APPROACH OF 75% TORQUE THE PILOT NOTICED THE MAST TORQUE INCREASE TO OVER 110% WHILE THE ENGINE TORQUES REMAINED UNCHANGED. HE LANDED IN A
- [SDR CA140701013](https://openairdocs.org/sdr/CA140701013), Jun 28, 2014: OIL SYSTEM. FAILED. THE ENGINE NR 2 LOST OIL IN FLIGHT. THE PILOT PERFORMED AN IFSD OF ENGINE NR 2 AND AN UNEVENTFUL EMERGENCY LANDING WITH 1 ENGINE INOPERATIVE (OEI). ON GROUND TR
- [SDR SAJF2014062603020](https://openairdocs.org/sdr/SAJF2014062603020), Jun 16, 2014: ENGINE. LEAKING. DURING FLIGHT AFTER 5 HOURS AFTER TAKEOFF, THE PILOT OBSERVED LOW OIL QTY ON NR 2 ENG & NORMAL OIL PRESS WAS MAINTAINED. AFTER INTERVAL DISCUSSION, PILOT CHOSE 
- [SDR CA140602018](https://openairdocs.org/sdr/CA140602018), May 8, 2014: GEARBOX. MAKING METAL. (CAN) THE PILOT SHUTDOWN THE ENGINES AND ABORTED THE TAKEOFF DUE TO A CHIP DETECTOR INDICATION ON THE COMBINING GEARBOX.
- [SDR CA140826021](https://openairdocs.org/sdr/CA140826021), Mar 23, 2014: COTTER PIN. OBSTRUCTED. (CAN) DURING A TRAINING FLIGHT, PILOTS NOTICED THAT ENGINE NR 2 FAIL WARNING LIGHT APPEARED. ITT WAS 136 CELSIUS. PILOTS STARTED EMERGENCY PROCEDURE AND THE HEL
- [SDR CA140305006](https://openairdocs.org/sdr/CA140305006), Mar 5, 2014: BEARING. FAILED. (CAN) ON A COMBINING GEAR BOX REMOVAL, AME NOTICED A LARGE AMOUNT OF BLACK FRETTING MATERIAL BETWEEN THE C BOX AND BLOWER JOINT FLANGE. ONCE CLEANED UP THE AME 
- [SDR CA140224024](https://openairdocs.org/sdr/CA140224024), Feb 13, 2014: BEARING. FAILED. (CAN) ON C BOX REMOVAL THE OIL COOLER BLOWER ON NR 2 SIDE HAD BOTH FWD AND REAR BEARINGS BEGINNING TO FAIL. GREASE HAD BEEN EJECTED FROM FWD BEARING ALONG WITH 
- [SDR CA131216016](https://openairdocs.org/sdr/CA131216016), Dec 13, 2013: FRAME. CRACKED. (CAN) WHILE SCHEDULED MAINTENANCE WAS CARRIED OUT ON THE STABILIZER BAR, THE CENTER FRAME WHICH HAS 111.3 HRS REMAINING TO IT`S SCHEDULED RETIREMENT LIFE OF 10,
- [SDR CA131216002](https://openairdocs.org/sdr/CA131216002), Dec 3, 2013: COUPLING. LOOSE. (CAN) THE PILOT REPORTED THAT BOTH POWER SECTION CHIP LIGHTS CAME ON IN FLIGHT. HE DECLARED AN EMERGENCY AND LANDED. MAINTENANCE FOUND A LITTLE FUZZ ON BOTH CHI
- [SDR CA131118006](https://openairdocs.org/sdr/CA131118006), Nov 5, 2013: GEAR. FAILED. (CAN) THE ACFT RETURNED TO BASE WITHOUT COMPLETING ITS MISSION DUE TO ENGINE NR 2 CHIP WARNING. THE AFFECTED POWER SECTION WAS APPARENTLY SHUTDOWN. POST FLIGHT 
- [SDR CA131007008](https://openairdocs.org/sdr/CA131007008), Sep 29, 2013: FUEL HEATER. LEAKING. (CAN) SIGNIFICANT FUEL LEAK NOTED ON NR 1 ENGINE DURING GROUND OPERATIONS. LEAK CONFIRMED AS CRACKED WELD ON OIL TO FUEL HEATER.
- [SDR CA130920017](https://openairdocs.org/sdr/CA130920017), Sep 20, 2013: BEARING. BROKEN. (CAN) UPON DISASSEMBLY OF POWER TURBINE, THE NR 4 MAIN BEARING WAS FOUND WITH 2 OF THE 4 MOUNTING CORNERS BROKEN OFF AND A 3RD CRACKED. THERE WAS SOME WEAR ON T
- [SDR CA130911017](https://openairdocs.org/sdr/CA130911017), Sep 4, 2013: ENGINE. SHUTDOWN. (CAN) JUST AFTER TAKEOFF, THE PILOT ELECTED TO PERFORM AN ENGINE SHUTDOWN. THE REASON OF THE FORCED ENGINE SHUTDOWN IS UNKNOWN.
- [SDR CA131104006](https://openairdocs.org/sdr/CA131104006), Jul 23, 2013: BEARING. WORN. (CAN) POWER SECTION WAS REMOVED FROM OPERATORS ACFT DUE TO METAL GENERATION. THIS ENGINE HAD A TSN OF 1415.93 AND WAS IN FOR ITS FIRST SHOP VISIT SINCE MFG. THE
- [SDR CA130815004](https://openairdocs.org/sdr/CA130815004), Jul 20, 2013: ROD END. WORN. (CAN) BEARING LINER GONE, EXCESSIVE WEAR BETWEEN BALL AND BEARING OUTER HSG.
- [SDR CA130726004](https://openairdocs.org/sdr/CA130726004), Jul 19, 2013: BLADE. DEBONDED. (CAN) WHILE CARRYING OUT A 25 HOUR INSPECTION, PERFORMED A TAP TEST WITH A BELL TAP HAMMER, FOUND THE EROSION STRIP PARTIALLY DEBONDED. TAIL ROTOR HUB AND BLADE
- [SDR CA130410013](https://openairdocs.org/sdr/CA130410013), Apr 10, 2013: FUEL LINE. CHAFED. (CAN) DURING A AFCU REPLACEMENT ON NR 1 ENGINE, THE FUEL TUBE, FROM AFCU TO MFCU WAS FOUND CHAFING ON BRAKET, PN 412-060-024-101, PARTS OF TB 212-11-211.
- [SDR CA130416012](https://openairdocs.org/sdr/CA130416012), Apr 4, 2013: ENGINE. SHUTDOWN. (CAN) IN PREPARATION OF THE ENGINE SHUTDOWN, ENGINES THROTTLES WERE BROUGHT DOWN TO FLIGHT IDLE, APPROXIMATELY 80 PERCENT NR, ALLOWING FOR COOLING PERIOD. ALL O
- [SDR CA130327004](https://openairdocs.org/sdr/CA130327004), Mar 18, 2013: INVERTER. FAILED. (CAN) DURING A TRAINING FLIGHT THE INVERTER FAILURE NR 2 WARNING LIGHT CAME ON. AT APPROXIMATELY THE SAME TIME SMOKE WAS DETECTED IN THE CABIN. EMERGENCY WAS DE
- [SDR CA130128024](https://openairdocs.org/sdr/CA130128024), Jan 28, 2013: WIRE. CHAFED. (CAN) PILOT REPORTED LATERAL CYCLIC IMPULSES FELT IN ALL FLIGHT REGIMES WITH AUTO PILOT SELECTED ON ONLY. EXTENSIVE TROUBLESHOOTING WAS CARRIED OUT OVER A 3 WEE
- [SDR CA130117002](https://openairdocs.org/sdr/CA130117002), Dec 31, 2012: BLADES. BROKEN. (CAN) AFTER TAKING OFF FROM HELIPAD AT 400 FT ABOVE GROUND LEVEL, AN ABNORMAL NOISE SIMILAR TO ENGINE SURGE NOISE WAS HEARD BY PILOTS FOLLOWED BY ODOR OF FUEL I
- [SDR CA121206003](https://openairdocs.org/sdr/CA121206003), Dec 4, 2012: FITTING. WORN. (CAN) UPON PURGING WITH GREASE OF THE MAIN ROTOR GRIP IT WAS NOTICED THAT GREASE WOULD NOT COME OUT OF THE VENT FITTING AT THE TOP OF THE GRIP. THE ROTOR HUB WA
- [SDR CA121115006](https://openairdocs.org/sdr/CA121115006), Nov 10, 2012: LINK. FAILED. (CAN) DURING 600 HR INSPECTION OF ACFT, LIFT LINK BEARINGS WERE FOUND SPINNING WITHIN BORE. OEM HAS NO REQUIRED INSPECTION OF THIS COMPONENT AND THIS IS NOT AN 
- [SDR CA121022005](https://openairdocs.org/sdr/CA121022005), Sep 27, 2012: LINE. BROKEN. (CAN) THIS HELICOPTER HAS EXPERIENCED ITS SECOND BROKEN P3 AIR LINE, IN 600 HOURS ON ENGINE NR 1. THE PREVIOUS EVENT WAS WITH PS TH0727 IN THE SAME POSITION ON 
- [SDR CA120824003](https://openairdocs.org/sdr/CA120824003), Aug 22, 2012: TRANSISTOR. FAILED. (CAN) WHEN THE DIM FUNCTION ON THE CONSOLE IS UTILIZED FOR THE INSTRUMENT LIGHTING, THE CIRCUIT BREAKER TRIPS. TRANSISTOR, PN 130-007-1 USED IN THE SYS HAS FOUN
- [SDR CA120808006](https://openairdocs.org/sdr/CA120808006), Jul 30, 2012: BEARING CAGE. MAKING METAL. (CAN) MIDDLE BEARING OUTTER RACE SPALLING. BEARING CAGE BROKEN.

All 421: https://openairdocs.org/engine/pratt-whitney-canada-pt6t-3-series/reports.md

## 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 SE1123GL](https://openairdocs.org/stc/SE1123GL): Installation of a Shadin Co Digital Fuel Flow Transducer. Shadin Avionics
- [STC SE00022EN](https://openairdocs.org/stc/SE00022EN): Installation of Oil Tank Filler Neck Check Valve. Helicopter Support Inc Services Div
- [STC SE659NE](https://openairdocs.org/stc/SE659NE): Installation of oil tank filler neck check valve, P/N TSA-76A. Aviation Components Support

## PMA parts (OpenAirDocs) (521, 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.

- [ST3277-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199989902020260311145336.0001): Gasket, Starter Generator. Core Parts LLC · PMA PQ05326NM · Replaces ST3277-01 · Feb 26, 2026
- [ST3278-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116739255220260311145337.0001): Gasket, Engine Accessory Drive. Core Parts LLC · PMA PQ05326NM · Replaces ST3278-01 · 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
- [3109585-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117456133120260217165221.0001): Spacer, Oil Slinger. Core Parts LLC · PMA PQ05326NM · Replaces 3109585-01 · Feb 11, 2026
- [3010880CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111084696520260108163216.0001): Gasket, Igniter. CORE PARTS LLC · PMA PQ05326NM · Replaces 3010880 · Oct 16, 2025
- [3105840-01CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100430581820260108163101.0001): Seal, Turbine Blade. CORE PARTS LLC · PMA PQ05326NM · Replaces 3105840-01 · Jul 14, 2025
- [3034508WFC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168792409620250624152910.0001): Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3034508 3036376, Alternate: 11-11064… · Jun 2, 2025
- [WF334552](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147857861520250602133017.0001): Compressor Air Filter. Donaldson Company Inc · PMA PQ2432CE · Replaces 3029268, Alternate: 3028856, 3029267… · May 23, 2025
- [3034508WFC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123684652020250602133047.0001): Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3029315, 3015330, 3029316, 3020291… · May 23, 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
- [WF336238](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112708987520250602133027.0001): Compressor Air Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3038142, P-1139 · May 23, 2025
- [3014422AA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157889633320250310190842.0001): Packing with Retainer. Aero Attitude, LLC · PMA PQ00001CB · Replaces PWC 3014422 · Feb 25, 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
- [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
- [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
- [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
- [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
- [2524999-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186366461620240306163320.0001): Governor, Free Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 3045144-01 · Apr 14, 2023
- [3244735-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144892661020240306163320.0001): Fuel Control Automatic. Honeywell International Inc. · PMA PQ1222NM · Replaces 3118773-05 · Apr 14, 2023
- [3244865-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105135407120240306163320.0001): Control Torque. Honeywell International Inc. · PMA PQ1222NM · Replaces 3054938-01 · Apr 14, 2023
- [3012675CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172835041720230717162244.0001): Nut, Self-Locking, Hex. CORE PARTS LLC · PMA PQ05326NM · Replaces 3012675 · Jan 23, 2023
- [3012414CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168780316620230717162242.0001): Nut, Self-Locking, 12 Point. CORE PARTS LLC · PMA PQ05326NM · Replaces 3012414 · Jan 23, 2023
- [3015234CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160866993420230717162557.0001): Nut, Self-Locking, Shank. CORE PARTS LLC · PMA PQ05326NM · Replaces 3015234 · Jan 23, 2023
- [3244881-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196665779220241002190409.0001): Control-Torque Universal. Honeywell International Inc. · PMA PQ1222NM · Replaces 3054939-02 · Jan 20, 2023
- [3244708-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184466062420241002190411.0001): Valve, Fuel Press Rglt. Honeywell International Inc. · PMA PQ1222NM · Replaces 3020373 · Jan 20, 2023
- [3244885-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177386663920241002190409.0001): Governor, Free Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 3054401-01 · Jan 20, 2023
- [3244736-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176197315920241002190412.0001): Fuel Control Manual. Honeywell International Inc. · PMA PQ1222NM · Replaces 3031803 · Jan 20, 2023
- [3244735-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163561707220241002190411.0001): Fuel Control - Automatic. Honeywell International Inc. · PMA PQ1222NM · Replaces 3118773-05 · Jan 20, 2023
- [3244883-12](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156591850820241002190410.0001): Fuel Control Automatic. Honeywell International Inc. · PMA PQ1222NM · Replaces 3118098-12 · Jan 20, 2023
- [3244706-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145837251220241002190411.0001): Control Torque. Honeywell International Inc. · PMA PQ1222NM · Replaces 3054933-01 · Jan 20, 2023
- [3244883-13](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139667544820241002190410.0001): Fuel Control - Automatic. Honeywell International Inc. · PMA PQ1222NM · Replaces 3118098-12 · Jan 20, 2023
- [3244885-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113961541820241002190410.0001): Governor-Free Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 3054401-02 · Jan 20, 2023
- [540-1407-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111492413120241002190411.0001): Valve, Compressor Bleed. Honeywell International Inc. · PMA PQ1222NM · Replaces 3049038-03 · Jan 20, 2023
- [3244884-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110385298020241002190409.0001): Fuel Control Manual. Honeywell International Inc. · PMA PQ1222NM · Replaces 3118099-03 · Jan 20, 2023

All of them: https://openairdocs.org/engine/pratt-whitney-canada-pt6t-3-series/pma.md

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