# U/A Canada PT6A-34B

- Type: Engine model (FAA registry)
- Registry code: 61579
- Manufacturer (registry): U/A CANADA
- Model: PT6A-34B
- Engine type: Turbo-prop
- Power: 750 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-34b

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 2022-08-13](https://openairdocs.org/ad/2022-08-13): Turbine Section · Pratt & Whitney Canada PT6A-34, PT6A-34B, PT6A-34AG and 2 more. Effective May 27, 2022
- [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 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 (9)

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

- [SDR CA190604021](https://openairdocs.org/sdr/CA190604021), Jun 4, 2019: BLADE. DAMAGED. (CAN) THIS ENGINE WAS EXPERIENCING POOR PERFORMANCE AT ALTITUDE. THE DETAILS OF THE POOR PERFORMANCE WERE NOT REPORTED. THE OPERATOR`S TROUBLESHOOTING INCLUDED 
- [SDR 2018FA0000420](https://openairdocs.org/sdr/2018FA0000420), Apr 18, 2018: TURBINE BLADES. FRACTURED. A. AT END OF A 3 HOUR MISSION, AT 5000 FEET MSL, AIRCREW REPORTED A LOUD BANG FROM THE RIGHT ENGINE, FOLLOWED BY SUDDEN NOSE RIGHT YAW AND AIRFAME VIBRATIONS. A
- [SDR 2019FA0000006](https://openairdocs.org/sdr/2019FA0000006), Jul 26, 2017: DISK. FRACTURED. THE FLEET REPORTED DISCREPANCY WAS CONFIRMED. THE LOUD BANG HEARD BY THE PILOT WAS THE CATASTROPHIC FAILURE OF THE CT DISK ASSEMBLY BROUGHT ON BY THE FAILURE OF
- [SDR 2018FA0000423](https://openairdocs.org/sdr/2018FA0000423), Oct 8, 2015: TURBINE BLADES. FRACTURED. A. THE LEFT ENGINE EMITTED A PUFF OF SMOKE AND SEIZED IN FLIGHT. THE AIRCREW COMPLETED EMERGENCY PROCEDURES TO SECURE THE ENGINE AND RETURNED TO BASE. FOLLOWING
- [SDR 2018FA0000422](https://openairdocs.org/sdr/2018FA0000422), Feb 11, 2015: TURBINE BLADES. FRACTURED. A. DURING TOUCH-AND-GO MANEUVERS, AFTER ADDING POWER FOR TAKEOFF, THE AIRCREW HEARD A "POP" FROM THE LEFT ENGINE IMMEDIATELY FOLLOWED BY A CAUTION LIGHT FOR THE
- [SDR CA150224012](https://openairdocs.org/sdr/CA150224012), Feb 2, 2015: START VALVE. MALFUNCTIONED. (CAN) HAD TWO DIFFERENT FLAME OUTS, WHICH WERE ATTRIBUTED TO THE START CONTROL VALVE. VALVE SENT FOR INVESTIGATION.
- [SDR CA150224013](https://openairdocs.org/sdr/CA150224013), Feb 2, 2015: START VALVE. MALFUNCTIONED. (CAN) REPORTED THROUGH THEIR MAINTENANCE PROVIDER, THAT THEY HAD TWO DIFFERENT FLAME OUTS, WHICH THEY HAVE ATTRIBUTED TO THE START CONTROL VALVE. VALVE, SENT FO
- [SDR CA120224011](https://openairdocs.org/sdr/CA120224011), Feb 18, 2012: PUSH-PULL ROD. WORN. (CAN) SIGNIFICANT WEAR ON THE ELEVATOR TRIM TAB PUSH-PULL ROD.
- [SDR CA100608004](https://openairdocs.org/sdr/CA100608004), May 17, 2010: TURBINE BLADES. FAILED. POWER LOSS WHILE ON A TRAINING FLIGHT, THE CREW HEARD A LOUD NOISE FOLLOWED BY ENGINE POWER LOSS. A SINGLE ENGINE LANDING FOLLOWED. GROUND INSP FOUND DENTS AND 

## STCs that may be installed (OpenAirDocs) (12)

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 SE00002EN](https://openairdocs.org/stc/SE00002EN): Instructions for Continued Airworthiness for the PT6A-34, -34AG, -34B, -36, -114, -114A, -116, -135, and -135A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. MORE Company Inc
- [STC SE02170AT](https://openairdocs.org/stc/SE02170AT): Installation of Pc Safety Valve Kit. Bell Helicopter Textron 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 SE09286SC](https://openairdocs.org/stc/SE09286SC): Installation of an alternate gas generator case. Airforce Turbine Service
- [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 SE539NE](https://openairdocs.org/stc/SE539NE): Modification of compressor turbine sealing segments to incorporate honeycomb material on the inside diameter thereby providing an abradable surface for turbine blade contact. 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

## PMA parts (OpenAirDocs) (508, 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
- [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
- [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
- [3007355CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150958507420260217165221.0001): Spacer, Adjusting. Core Parts LLC · PMA PQ05326NM · Replaces 3007355 · 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
- [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
- [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
- [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
- [3110741-02CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169885030720250605164146.0001): Ring, Retaining, Compressor Turbine. CORE PARTS LLC · PMA PQ05326NM · Replaces 3110741-02 · Oct 31, 2024
- [218794ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136891010120241022133827.0001): Washer, CRES. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 218794 · Oct 3, 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
- [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
- [RM3022375](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197353719220230503123945.0001): Seal, Plain. Rimark Manufacturing · PMA PQ10018NE · Replaces 3022375 · Apr 19, 2023
- [RM3022374](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109994811820230503123941.0001): Seal, Plain. Rimark Manufacturing · PMA PQ10018NE · Replaces 3022374 · Apr 19, 2023
- [540-1407-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149574330120240306163319.0001): Valve, Bleed (Small PT6). Honeywell International Inc. · PMA PQ1222NM · Replaces 3049038-02 · Apr 14, 2023
- [206684ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193915393720230321122918.0001): Gasket, Propeller Governor Mounting. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 206684 · Mar 16, 2023
- [3018176CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141519552120230126122635.0001): Washer, Key. CORE PARTS LLC · PMA PQ05326NM · Replaces 3018176 · Feb 4, 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
- [3008676CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117155957820230717173023.0001): Bearing, Sleeve,Flanged. CORE PARTS LLC · PMA PQ05326NM · Replaces 3008676 · Jan 16, 2023
- [3006523CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113721863120230717173021.0001): Bearing, Sleeve,Flanged. CORE PARTS LLC · PMA PQ05326NM · Replaces 3006523 · Jan 16, 2023

All of them: https://openairdocs.org/engine/u-a-canada-pt6a-34b/pma.md

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