# Pratt & Whitney PT6A-28 series

- Type: Engine model (FAA registry)
- Registry code: 52142
- Manufacturer (registry): P & W
- Model: PT6A-28
- Engine type: Turbo-prop
- Power: 680 hp
- Installed in: 25 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-pt6a-28-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 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 2011-25-12](https://openairdocs.org/ad/2011-25-12): Sun gear · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Dec 28, 2011
- [AD 2011-20-51](https://openairdocs.org/ad/2011-20-51): Gears · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Nov 1, 2011
- [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 90-12-05](https://openairdocs.org/ad/90-12-05): Engine Overhaul · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 3 more. Effective May 30, 1990
- [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
- [AD 75-06-01](https://openairdocs.org/ad/75-06-01): Gearbox Deterioration · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 11 more. Effective Apr 1, 1977
- [AD 75-11-04](https://openairdocs.org/ad/75-11-04): Reduction Gearbox Engine Distress · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 8 more. Effective May 20, 1975
- [AD 69-23-06](https://openairdocs.org/ad/69-23-06): Fuel Pumps · Pratt & Whitney Canada PT6A-20, PT6A-27, PT6A-28 and 4 more. Effective Nov 15, 1969

## 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 (25)

- [N100BA](https://openairdocs.org/aircraft/N100BA): [Bemidji Aviation Services Inc](https://openairdocs.org/faa-owner/BEMIDJI%20AVIATION%20SERVICES%20INC), [Bemidji, MN](https://openairdocs.org/faa-place/MN/Bemidji), built 1968, S/N U12
- [N111JF](https://openairdocs.org/aircraft/N111JF): [Joyce Aviation Inc](https://openairdocs.org/faa-owner/JOYCE%20AVIATION%20INC), [Winston Salem, NC](https://openairdocs.org/faa-place/NC/Winston%20Salem), built 1981, S/N 31T8120012
- [N113SH](https://openairdocs.org/aircraft/N113SH): [Hill Lawrence E](https://openairdocs.org/faa-owner/HILL%20LAWRENCE%20E), [Marion, MT](https://openairdocs.org/faa-place/MT/Marion), built 1970, S/N B-18
- [N118MD](https://openairdocs.org/aircraft/N118MD): [Alpine Aviation Inc](https://openairdocs.org/faa-owner/ALPINE%20AVIATION%20INC), [Provo, UT](https://openairdocs.org/faa-place/UT/Provo), built 1969, S/N U-118
- [N123T](https://openairdocs.org/aircraft/N123T): [Patey Michael J](https://openairdocs.org/faa-owner/PATEY%20MICHAEL%20J), [Spanish Fork, UT](https://openairdocs.org/faa-place/UT/Spanish%20Fork), built 2008, S/N 00060024
- [N13FP](https://openairdocs.org/aircraft/N13FP): [Safeco Leasing LLC](https://openairdocs.org/faa-owner/SAFECO%20LEASING%20LLC), [Port Alsworth, AK](https://openairdocs.org/faa-place/AK/Port%20Alsworth), S/N B-44
- [N156G](https://openairdocs.org/aircraft/N156G): [Alliance Air Parts Acquisitions Corp](https://openairdocs.org/faa-owner/ALLIANCE%20AIR%20PARTS%20ACQUISITIONS%20CORP), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1975, S/N LW-156
- [N32P](https://openairdocs.org/aircraft/N32P): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1966, S/N LM-31
- [N3700M](https://openairdocs.org/aircraft/N3700M): [Boeing Co](https://openairdocs.org/faa-owner/BOEING%20CO), [Berkeley, MO](https://openairdocs.org/faa-place/MO/Berkeley), built 1980, S/N LW-340
- [N3GC](https://openairdocs.org/aircraft/N3GC): [Texas Air & Space Museum](https://openairdocs.org/faa-owner/TEXAS%20AIR%20%26%20SPACE%20MUSEUM), [Amarillo, TX](https://openairdocs.org/faa-place/TX/Amarillo), built 1973, S/N LJ-576
- [N7198Y](https://openairdocs.org/aircraft/N7198Y): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1972, S/N LU-02
- [N80Y](https://openairdocs.org/aircraft/N80Y): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1967, S/N LM-79
- [N827KB](https://openairdocs.org/aircraft/N827KB): [Arkansas Air Partners LLC](https://openairdocs.org/faa-owner/ARKANSAS%20AIR%20PARTNERS%20LLC), [Jonesboro, AR](https://openairdocs.org/faa-place/AR/Jonesboro), built 1978, S/N LW-287
- [N84G](https://openairdocs.org/aircraft/N84G): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1967, S/N LM-33
- [N87Q](https://openairdocs.org/aircraft/N87Q): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1967, S/N LM-60
- [N904H](https://openairdocs.org/aircraft/N904H): [Bohanon Air LLC](https://openairdocs.org/faa-owner/BOHANON%20AIR%20LLC), [Jonesboro, AR](https://openairdocs.org/faa-place/AR/Jonesboro), built 1979, S/N LW-239
- [N90D](https://openairdocs.org/aircraft/N90D): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1970, S/N LU-10
- [N90PH](https://openairdocs.org/aircraft/N90PH): [Triple R Spraying LLC](https://openairdocs.org/faa-owner/TRIPLE%20R%20SPRAYING%20LLC), [Dumas, TX](https://openairdocs.org/faa-place/TX/Dumas), built 1973, S/N LW-60
- [N91S](https://openairdocs.org/aircraft/N91S): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1972, S/N LU-15
- [N92B](https://openairdocs.org/aircraft/N92B): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1970, S/N LM-132
- [N93J](https://openairdocs.org/aircraft/N93J): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1970, S/N LM-128
- [N95S](https://openairdocs.org/aircraft/N95S): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1971, S/N LM-125
- [N96S](https://openairdocs.org/aircraft/N96S): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1970, S/N LU-13
- [N97D](https://openairdocs.org/aircraft/N97D): [Dynamic Avlease Inc](https://openairdocs.org/faa-owner/DYNAMIC%20AVLEASE%20INC), [Bridgewater, VA](https://openairdocs.org/faa-place/VA/Bridgewater), built 1970, S/N LM-137
- [N998LM](https://openairdocs.org/aircraft/N998LM): [Armstrong Airlines Inc](https://openairdocs.org/faa-owner/ARMSTRONG%20AIRLINES%20INC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 1980, S/N 31T-8120006

## NTSB investigations (3)

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 ERA23LA237](https://openairdocs.org/ntsb/ERA23LA237), May 18, 2023: Beech 65-A90-1 (N80Y), Petersburg, WV, substantial damage. Probable cause: The flight crew’s failure to ensure that the landing gear were properly configured before landing.
- [NTSB GAA19CA550](https://openairdocs.org/ntsb/GAA19CA550), Sep 16, 2019: Pzl Okecie PZL104 (N123T), Reno, NV, substantial damage. Probable cause: The pilot's failure to maintain bank control during takeoff in gusting crosswind conditions, resulting in a loss of control in flight and subsequent impact with terrain.
- [NTSB CEN11WA424](https://openairdocs.org/ntsb/CEN11WA424), May 18, 2011: Beech E-90 (N46BM), Bournemouth, United Kingdom, substantial damage

## FAA accident and incident reports (11)

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 20230518005649A](https://openairdocs.org/incident/20230518005649A), May 18, 2023: Beech 65-A90-1 (N80Y), Petersburg, WV, Substantial damage. Aircraft was engaged in touch-and-go training at W99. On approach, landing gear was not extended. Aircraft landed gear-up and skidded off the runway.
- [Incident 20220831010119I](https://openairdocs.org/incident/20220831010119I), Aug 31, 2022: Beech 99A (N118MD), Salt Lake City, UT, Minor damage. During the departure climb-out the commercial rated pilot was instructed by ATC to make a right hand standard rate turn. The packages in the nose cargo…
- [Accident 20190915013179A](https://openairdocs.org/incident/20190915013179A), Sep 15, 2019: Eads Pzl Warszawa-Okecie Sa PZL-104MA WILGA 2000 (N123T), Reno, NV, Substantial damage. Pilot attempted to depart the runway during a severe and direct crosswind. The aircrafts unusual suspension contributed by allowing the windward wing to be…
- [Incident 20190714015919I](https://openairdocs.org/incident/20190714015919I), Jul 14, 2019: Beech B90 (N75SC), Chester, SC, No damage, 1 fatal. On 07/14/2019 at approximately 2:45 pm, skydiver amie begg jumped out of Beechcraft king air b 90 TN N75SC. The skydiver deployed her parachute at…
- [Incident 20181213023509I](https://openairdocs.org/incident/20181213023509I), Dec 13, 2018: Beech E-90 (N737LC), Russellville, AR, Minor damage. On December 13, 2018, at 0900 CST, a Hawker Beech BE-90, N737LC, registered to executive aviation services management, LLC (EV4A), experienced smoke in the…
- [Incident 20160423004909I](https://openairdocs.org/incident/20160423004909I), Apr 23, 2016: Beech B90 (N75SC), Chester, SC, Minor damage. Airman was conducting parachute operations on date of incident and had flown approximately 6 flight hours at time of event. After jumpers exited aircraft at…
- [Incident 20120603009769I](https://openairdocs.org/incident/20120603009769I), Jun 3, 2012: Eads Pzl Warszawa-Okecie Sa PZL-104MA WILGA 2000 (N123T), Houston, TX, Minor damage. Aircraft was on the last leg of a ferry flight from mansfield, MA. To kefd. According to ATC statements upon touchdown on runway 22 the aircraft bounced a…
- [Incident 20120519010419I](https://openairdocs.org/incident/20120519010419I), May 19, 2012: Beech E-90 (N382TW), Green Bay, WI, Minor damage. On may 19, 2012, at 2317CDT, a Beechcraft model BE-90, N382TW, on approach to outagamie county airport, appleton, WI reported a problem with the left main…
- [Incident 20070814018429I](https://openairdocs.org/incident/20070814018429I), Aug 14, 2007: Beech E90 (N90PH), Santa Maria, CA, Minor damage. (-23) Aircraft struck bird during takeoff. Returned to field for inspection of damage. Aircraft flown to victorville for repairs.
- [Incident 19940125008099I](https://openairdocs.org/incident/19940125008099I), Jan 25, 1994: Cessna 650 (N84G), New Orleans, LA. Narrative: during our investigation the pilot stated that the low hydraulic pressure light came on as he approached New Orleans international airport. On the…
- [Incident 19860201008989I](https://openairdocs.org/incident/19860201008989I), Feb 1, 1986: Beech E90 (N382TW), Carlsbad, NM, Minor damage. Turbine blade separation on left engine en route. Uneventful landing.

## Service difficulty reports (944, newest 50)

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

- [SDR 2024FA0000739](https://openairdocs.org/sdr/2024FA0000739), Sep 26, 2024: GPS. DEFECTIVE. WHILE ENROUTE TO KLVS FROM KGUY, THE GARMIN GNS530W SCREEN SHUT OFF. WHILE TROUBLESHOOTING, A STRONG ELECTRICAL SMELL FILLED THE CABIN. THE AIRCRAFT DIVERTED TO
- [SDR TIMA20220110010](https://openairdocs.org/sdr/TIMA20220110010), Aug 31, 2022: DOOR. UNSECURE. AFTER LOADING THE AIRCRAFT PILOT DID A FINAL WALK AROUND WHERE HE COMPLETED HIS CHECKLIST THAT ALL LATCHES WERE PUSHED IN AND LOCKED TO THE BEST OF MY KNOWLEDGE
- [SDR T4OR2022071400002](https://openairdocs.org/sdr/T4OR2022071400002), Jul 14, 2022: BRAKE ASSY. BROKEN. DURING LANDING ROLL-OUT BRAKING, THE LEFT BRAKE PEDAL WENT MOST OF ITS TRAVEL WITH LITTLE BRAKING EFFECT. IT WAS DISCOVERED THE LEFT BRAKE TORQUE PLATE WAS CRAC
- [SDR KCQA20211130](https://openairdocs.org/sdr/KCQA20211130), Nov 17, 2021: ENGINE. FAILED. PILOT REPORTS "RH ENGINE SN PC-51404 FAILURE ON TAKEOFF ROLL. ALL ANNUNCIATORS WERE EXTINGUISHED AND ENGINE INSTRUMENTS IN THE GREEN. AS I BEGAN MY ROLLOUT AND 
- [SDR KCQA202110412255](https://openairdocs.org/sdr/KCQA202110412255), Oct 21, 2021: DOUBLER. CRACKED. REMOVED THE CRACKED BULKHEAD DOUBLER P/N 115-440026-3 S/N NSN AT FUSELAGE STATION TO 428.335 AT THE VERTICAL STABILIZER LOWER ATTACH BOLTS. INSTALLED A NEW BULK
- [SDR 2021F00000](https://openairdocs.org/sdr/2021F00000), Oct 14, 2020: DRAG FITTING. FAILED. DURING LANDING RT MAIN LANDING GEAR DRAG LEG FITTING FAILED.
- [SDR KCQA2020093000001](https://openairdocs.org/sdr/KCQA2020093000001), Sep 30, 2020: FIRE DETECTOR. FALSE ACTIVATION. IN FLIGHT, PILOT RECEIVED FIRE INDICATION ON ENGINE NR 1 WHILE ON FINAL APPROACH. NO EVIDENCE OF FIRE WAS PRESENT AND WARNING EXTINGUISHED AFTER A FEW MINUTES. 
- [SDR 2022FA0000771](https://openairdocs.org/sdr/2022FA0000771), Jan 29, 2020: ENGINE. MALFUNCTIONED. ON 29TH JANUARY 2020, WHILE IN THE CRUISE AT 16000FT, THE PILOT REPORTED HEARING A INCREASING WHISTLING SOUND FROM THE PORT ENGINE WHICH STARTED STARTED TO LOSE
- [SDR CA190604005](https://openairdocs.org/sdr/CA190604005), May 19, 2019: ENGINE. SHUTDOWN. (CAN) BEFORE TAKEOFF, THE PILOT REPORTED THAT THE ENGINE EXPERIENCED UN-COMMANDED ENGINE SHUTDOWN TOGETHER WITH A LOUD NOISE. THE TAKEOFF WAS ABORTED AND THE AI
- [SDR CA190108022](https://openairdocs.org/sdr/CA190108022), Jan 3, 2019: LINE. LEAKING. (CAN) CREW REPORTED A HIGHER FUEL CONSUMPTION ON LH ENGINE AS PER QUANTITY INDICATOR BUT FUEL FLOW WERE NORMAL ON BOTH ENGINES. DURING INVESTIGATION, MAINTENANC
- [SDR KCQA20181206](https://openairdocs.org/sdr/KCQA20181206), Dec 6, 2018: FIRE WARNING. FALSE INDICATION. PILOT RECEIVED A FIRE WARNING ON THE LT ENGINE. PERFORMED ENGINE FIRE PROCEDURE IAW COCKPIT CHECKLIST, VERIFIED FALSE WARNING. AFTER A SHORT PERIOD OF TIME WARN
- [SDR TIMA2018102500001](https://openairdocs.org/sdr/TIMA2018102500001), Oct 22, 2018: OIL SYSTEM. LOW PRESSURE. DURING CRUISE, PILOT NOTED LEFT ENGINE LOW OIL PRESSURE WARNING ILLUMINATED, AND VERIFIED WITH LOW OIL PRESSURE ON THE GAUGE. PILOT SHUT DOWN THE ENGINE AND RET
- [SDR KCQA2018090400001](https://openairdocs.org/sdr/KCQA2018090400001), Sep 4, 2018: FIRE DETECTOR. FALSE ACTIVATION. IN FLIGHT PILOT RECEIVE FIRE INDICATION ON NR 1 ENGINE. ENGINE SHUTDOWN IAW EMERGENCY PROCEDURES. DURING EXAMINATION OF ENGINE AND NACELLE NO EVIDENCE OF FIRE W
- [SDR 2019F00061](https://openairdocs.org/sdr/2019F00061), Aug 13, 2018: BOOT. DETACHED. 08-11-2018 THE AIRCRAFT HAD A PROPELLER DE-ICE BOOT REPLACED THAT HAD FALLEN OFF. 08-12-2018 ON A FLIGHT, THE BOOT DETACHED FROM THE PROPELLER AND WAS REPAIRED.
- [SDR CA180117004](https://openairdocs.org/sdr/CA180117004), Jan 16, 2018: BRACKET. CRACKED. (CAN) DURING ROUTINE MAINTENANCE DISCOVERED FLAP TRACK BRACKET CRACKED AT REAR OF SLOT. (TC NR 20180117004).
- [SDR CA160307007](https://openairdocs.org/sdr/CA160307007), Mar 4, 2016: STARTER. MALFUNCTIONED. (CAN) RIGHT STARTER REMAINED ENERGIZED.
- [SDR CA160205009](https://openairdocs.org/sdr/CA160205009), Feb 3, 2016: RELAY. FAILED. (CAN) DURING TAKEOFF, THE NR 1 INVERTER FAILED. NR 2 INVERTER WAS SELECTED BY CREW BUT IT WAS ALSO FAILED. WITH THIS DOUBLE FAILURE CREW LOST MOST OF ENGINES IN
- [SDR CA160129007](https://openairdocs.org/sdr/CA160129007), Jan 29, 2016: NUT. LOOSE. (CAN) DURING A SCHEDULED FUEL PUMP INSPECTION, THE STARTER GENERATOR AS BEEN REMOVED TO GIVE MORE ACCESS TO THE ENGINE FUEL PUMP. THE MECHANIC DISCOVER THAT SOM
- [SDR CA160128002](https://openairdocs.org/sdr/CA160128002), Jan 26, 2016: TERMINAL. UNSECURE. (CAN) WHILE COMPLETING AD CF-1981-25R6, IT WAS WAS NOTED AFTER REMOVING WING PANEL INBOARD OF RT NACELLE, THAT 2 WIRES (P83D0 P83B0) WERE DISCONNECTED FROM THE 
- [SDR JIKA2016012201](https://openairdocs.org/sdr/JIKA2016012201), Jan 18, 2016: FLEX HOSE. LEAKING. ON CLIMB OUT, THE PILOT REPORTED THAT AFTER THE CABIN BLEED HEAT WAS TURNED ON, THE COCKPIT RAPIDLY FILLED WITH SMOKE. THE PILOT TURNED THE BLEED HEAT OFF & COM
- [SDR CA160203013](https://openairdocs.org/sdr/CA160203013), Jan 17, 2016: OIL SYSTEM. LEAKING. (CAN) THE AIRCRAFT WAS FORCED TO RETURN TO THE DEPARTURE AIRPORT FOLLOWING THE PRESENCE OF SMOKE IN THE COCKPIT. THE AIRCRAFT LANDED SAFELY. THE SMOKE IN COCKPI
- [SDR CA160115001](https://openairdocs.org/sdr/CA160115001), Jan 11, 2016: CONTROL PANEL. BURNED. (CAN) AFTER HAVING COMPLETED HIS COCKPIT PRE-FLIGHT CHECKS AND WITH ALL ELECTRICAL POWER TURNED OFF, THE PILOT WENT OUTSIDE AND WAS PERFORMING HIS EXTERNAL ACFT
- [SDR CA160106011](https://openairdocs.org/sdr/CA160106011), Jan 4, 2016: CHANNEL. CRACKED. (CAN) PRIOR TO DEPARTURE FROM BASE THE CREW WAS UNABLE TO CLOSE THE CABIN DOOR. MAINTENANCE INVESTIGATION REVEALED A 14" CRACK IN THE CABIN ENTRANCE DOOR CHANNE
- [SDR CA160107006](https://openairdocs.org/sdr/CA160107006), Dec 28, 2015: SUPPORT. CRACKED. (CAN) DURING VISUAL INSPECTION IN THE ELEVATOR TORQUE TUBE AREA, THE RT ELEVATOR TORQUE TUBE SUPPORT WAS FOUND CRACKED. THE TORQUE TUBE AND SUPPORT ASSY WAS REP
- [SDR CA151126002](https://openairdocs.org/sdr/CA151126002), Nov 24, 2015: SKIN. TORN. (CAN) ON PRE-FLIGHT INSPECTION, THE FLIGHT CREW NOTICED A LARGE TEAR ON THE OTBD SECTION OF THE RT AILERON. THE TEAR STEMMED FROM THE OVERLAP BETWEEN THE L/E AN
- [SDR CA151102003](https://openairdocs.org/sdr/CA151102003), Oct 26, 2015: TORQUE TUBE. CRACKED. (CAN) TORQUE TUBE FOUND CRACKED. THOSE BEEN REPLACED IN THE LAST 4 YEARS. ON ATTACHMENT YOU WILL FOUND PICTURE AND THE LIST OF ACFT AFFECTED WITH THE SAME REPLA
- [SDR CA151016003](https://openairdocs.org/sdr/CA151016003), Oct 13, 2015: VOLT REGULATOR. FAILED. (CAN) ON ACFT SHORT COMING IN TESTING PROCEDURES WAS DISCOVERED WHILE FOLLOWING THE MM FOR THE ADJUSTMENT OF THE VOLTAGE REGULATORS FOR THE GENERATORS. WHEN THE
- [SDR CA151009007](https://openairdocs.org/sdr/CA151009007), Oct 8, 2015: BOLT. CRACKED. (CAN) DEFECT INDICATIONS WERE NOTED DURING LIQUID PENETRANT INSPECTION OF BOTH FORWARD UPPER AND LOWER WING ATTACHMENT BOLTS ON THE LT AND RT SIDES WHILE COMPLE
- [SDR CA151006005](https://openairdocs.org/sdr/CA151006005), Oct 5, 2015: BLADE. FAILED. (CAN) ENGINE WAS SENT FOR INVESTIGATION AND REPAIR AFTER AN IN-FLIGHT SHUTDOWN INCIDENT. THE INCIDENT STARTED WITH A LOUD NOISE FROM THE ENGINE WITH A SUBSEQUEN
- [SDR CA150903008](https://openairdocs.org/sdr/CA150903008), Sep 3, 2015: CONTROL CABLE. CORRODED. (CAN) DURING AND INSPECTION IN THE LT WING ROOT AREA, IT WAS NOTED THAT THE AILERON TRIM AND AILERON PRIMARY CABLES WERE HEAVILY CORRODED. ONLY LITTLE HAND PRES
- [SDR CA150731003](https://openairdocs.org/sdr/CA150731003), Jul 27, 2015: ENGINE. POWER LOSS. (CAN) PILOTS REPORTED THE RT ENGINE LOST POWER WITH T5 INCREASE MORE THAN 730 DEGREES CELSIUS WHEN TAKE OF POWER WAS APPLIED. THE ACFT RETURNED TO ITS PARKING F
- [SDR CA150930011](https://openairdocs.org/sdr/CA150930011), Jul 6, 2015: LIMIT SWITCH. FAULTY. (CAN) GEAR WOULD NOT RETRACT.
- [SDR CA150708004](https://openairdocs.org/sdr/CA150708004), Jul 4, 2015: BONDING STRAP. CRUSHED. (CAN) DURING A TRAINING FLIGHT SMOKE WAS OBSERVED IN THE CABIN. AIRCRAFT LANDED, MAINTENANCE FOUND THE FLAPS CIRCUIT BREAKER HAD POPPED AND THE FLAP MOTOR WAS U
- [SDR CA150618004](https://openairdocs.org/sdr/CA150618004), Jun 15, 2015: SOCKET. INTERMITTENT. (CAN) AFTER GEAR DOWN SELECTION, FLIGHT CREW DID NOT GET A GREEN LIGHT INDICATION OF RIGHT MAIN GEAR BEING DOWN & LOCKED. NO GEAR IN TRANSIT LIGHT WERE ILLUMINA
- [SDR CA150618005](https://openairdocs.org/sdr/CA150618005), Jun 11, 2015: TORQUE KNEE. BROKEN. (CAN) AFTER TOUCHDOWN THE PILOTS FELT A VIBRATION, ACFT STOPPED THEN TAXIED TO THE RAMP & IT WAS FOUND THAT THE LT MLG, UPPER & LOWER TORQUE LINK WERE FOUND BRO
- [SDR CA150511007](https://openairdocs.org/sdr/CA150511007), May 10, 2015: TORQUE LINK. BROKEN. (CAN) UPON LANDING, PILOT FELT LIKE HE HAD A FLAT. NO FLAT NOTED BUT UPON INSPECTION, IT WAS NOTED THAT THE RT MLG UPPER TORQUE LINK WAS FOUND TO BE BROKEN IN H
- [SDR CA150428006](https://openairdocs.org/sdr/CA150428006), Apr 24, 2015: PRESSURE SWITCH. INTERMITTENT. (CAN) HYDRAULIC PRESSURE SWITCH INTERMITENT, FOUND DIRTY, LOCATED IN LT WHEEL WELL AREA, CLEANED AND TESTED, RE-INSTALLED AND PERFORMED 18 GEAR CYLCES THROUGHOU
- [SDR CA150417014](https://openairdocs.org/sdr/CA150417014), Apr 14, 2015: B-NUT. SPLIT. (CAN) DURING ROUTINE MAINTENANCE, SOME OIL LOSS, CLEANED AND TUBE B-NUT FOUND SPLIT.
- [SDR KCQA2015040901](https://openairdocs.org/sdr/KCQA2015040901), Apr 9, 2015: DISPLAY. MALFUNCTIONED. PILOT PRIMARY FLIGHT DISPLAY (PFD), DISPLAYED A TURN IN THE OPPOSITE DIRECTION PROVIDED MISLEADING AND INACCURATE DATA TO THE PILOT IN COMMAND DURING A TURN AFT
- [SDR CA150407007](https://openairdocs.org/sdr/CA150407007), Mar 31, 2015: RADIO. MALFUNCTIONED. (CAN) CREW HAD A FAILURE OF RADIO`S AND WERE UNABLE TO CONTACT ATC CREW CYCLED AVIONICS MASTER SYS ALL TESTED SERVICEABLE. FLIGHT CONTINUED WITH NO FURTHER PROB
- [SDR CA150324012](https://openairdocs.org/sdr/CA150324012), Mar 24, 2015: TUBE. DISLODGED. (CAN) THE PILOT OF THE ACFT ABORTED TAKEOFF WHEN HE RECEIVED AN OVERTORQUE INDICATION FROM THE RT ENGINE. WHILE TAXIING BACK TO THE TERMINAL, THE PILOT TRIED TO
- [SDR CA150224002](https://openairdocs.org/sdr/CA150224002), Feb 3, 2015: ENGINE. UNRESPONSIVE. (CAN) ENGINE WOULD NOT DECELERATE ON APPROACH. NO THROTTLE RESPONSE ON APPROACH AFTER 2HR FLIGHT. SUSPECT FROZEN P3 LINE.
- [SDR CA150119008](https://openairdocs.org/sdr/CA150119008), Jan 16, 2015: HOUSING. FAILED. (CAN) DURING APPROACH THE CREW SELECTED GEAR DOWN AND THE GEAR WOULD NOT EXTEND. THEY MANUALLY EXTENDED THE GEAR BUT THE NOSE WOULD NOT FULLY GO DOWN. AFTER ATT
- [SDR CA150116003](https://openairdocs.org/sdr/CA150116003), Jan 14, 2015: ENGINE. MALFUNCTIONED. (CAN) ENGINE WOULD NOT DECELERATE ON APPROACH, NO THROTTLE RESPONSE ON APPROACH AFTER 2HR FLIGHT, SUSPECT FROZEN P3 LINE (TC# 20150116003)
- [SDR CA141219003](https://openairdocs.org/sdr/CA141219003), Dec 17, 2014: GEARBOX. MAKING METAL. (CAN) SHORTLY AFTER TAKEOFF, THE LEFT PROPELLER AUTO FEATHERED. THE ENGINE WAS NOT SHUTDOWN AS THE PROP WAS ALREADY FEATHERED. THE CREW LANDED SAFELY. INVESTIGA
- [SDR CA141205008](https://openairdocs.org/sdr/CA141205008), Dec 4, 2014: BEARING. FAILED. (CAN) AIRCRAFT TOOK OFF, DURING CLIMB APPROX. 7000` AGL CREW NOTED AN ODOR IN THE CABIN. THE CABIN THEN STARTED TO FILL WITH SMOKE. THE CREW REQUESTED A RETURN.
- [SDR CA141208007](https://openairdocs.org/sdr/CA141208007), Nov 20, 2014: SHAFT. CRACKED. (CAN) DETAILED INSPECTION OF BOLTED CONNECTION AT RT INBOUND FLAP ACTUATOR - REVEALED A CRACK- RUNNING FROM THE RIVET HOVE DOWN THE LENGTH OF THE SHAFT APPROX. 
- [SDR CA141014010](https://openairdocs.org/sdr/CA141014010), Oct 11, 2014: HINGE BRACKET. CRACKED. (CAN) THE RIGHT HAND HORIZONTAL STABILIZER HINGE BRACKET WAS FOUND CRACKED DURING VISUAL INSPECTION. THE INSPECTION WAS BEING COMPLETED DUE TO OTHER COMPANY AIR
- [SDR CA141003005](https://openairdocs.org/sdr/CA141003005), Oct 2, 2014: TORQUE KNEE. CRACKED. (CAN) DURING REGULAR ACFT INSPECTION, A CRACK WAS FOUND ON THE LT MLG TORQUE KNEE UPPER LINK.
- [SDR CA140929006](https://openairdocs.org/sdr/CA140929006), Sep 26, 2014: WIRE. MISROUTED. (CAN) ON GEAR DOWN SELECTION ON APPROACH, THE CREW EXPERIENCED A DOUBLE GENERATOR FAILURE WHICH LEFT THE GEAR ONLY PARTIALLY EXTENDED. THE GENERATORS WOULD NOT 

All 944: https://openairdocs.org/engine/pratt-whitney-pt6a-28-series/reports.md

## STCs that may be installed (OpenAirDocs) (25)

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 SE10552SC](https://openairdocs.org/stc/SE10552SC): Conversion of Pratt & Whitney Canada Corp. Model PT6A-27 or -28 to a Model PT6A-34 turboprop engine. Prime Turbines LLC
- [STC SE02170AT](https://openairdocs.org/stc/SE02170AT): Installation of Pc Safety Valve Kit. Bell Helicopter Textron Inc
- [STC SE02688NY](https://openairdocs.org/stc/SE02688NY): This modification would incorporate improved compressor components into the Pratt & Whitney PT6A-28 engine from the PT6A-135A engine. Standard Aero Limited
- [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 SE02273NY](https://openairdocs.org/stc/SE02273NY): Conversion of a Pratt & Whitney Canada PT6A-27 or PT6A-28 engine to operate as a PT6A-34 engine. Atlantic Turbines International Inc
- [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 SE00691NY](https://openairdocs.org/stc/SE00691NY): Conversion of engine models PT6A-27 and -28 to Model PT6A-34 as described in Temporary Overhaul Data Revision. Standard Aero Limited
- [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 SE7677SW](https://openairdocs.org/stc/SE7677SW): Modifiy the P&W Canada PT-6A-27, -28, -15AG to the PT6A-34 configuration. Airforce Turbine Service
- [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 SE241NE](https://openairdocs.org/stc/SE241NE): Conversion of engine Models PT6A-27 and -28 to 01/157/3. Airwork Corporation
- [STC SE5601SW](https://openairdocs.org/stc/SE5601SW): Replacement splined end and oil mist lubrication on accessory drive gearshaft. Aviall of Texas, Inc
- [STC SE79NE](https://openairdocs.org/stc/SE79NE): Conversion to an aircooled compressor turbine vane ring configuration. Airwork Corporation
- [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
- [STC SE12CE](https://openairdocs.org/stc/SE12CE): Installation of Gits Brothers Manufacturing Company dipstick filler cap assembly P/N 02297-2000. Gits Brothers Mfg Co

## PMA parts (OpenAirDocs) (934, 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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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
- [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

All of them: https://openairdocs.org/engine/pratt-whitney-pt6a-28-series/pma.md

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