# Pratt & Whitney Canada PW126A - Type: Engine model (FAA registry) - Registry code: 52125 - Manufacturer (registry): P&W CANADA - Model: PW126A - Engine type: Turbo-prop - Power: 2,396 hp - Data sheet: [TCDS E20NE](https://openairdocs.org/tcds/E20NE) (OpenAirDocs) - Holder: Pratt & Whitney Canada Corp. - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-canada-pw126a 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 2013-15-08](https://openairdocs.org/ad/2013-15-08): First-stage PT blades · Pratt & Whitney Canada PW118A, PW118B, PW119B and 15 more. Effective Sep 17, 2013 - [AD 2012-26-08](https://openairdocs.org/ad/2012-26-08): Propeller shafts · Pratt & Whitney Canada PW118, PW118A, PW118B and 20 more. Effective Feb 15, 2013 - [AD 2004-20-01](https://openairdocs.org/ad/2004-20-01): Bypass valve cover · Pratt & Whitney Canada PW123, PW123AF, PW123B and 10 more. Effective Nov 5, 2004 - [AD 2003-16-04](https://openairdocs.org/ad/2003-16-04): Fuel heaters · Pratt & Whitney Canada PW118, PW118A, PW118B and 19 more. Effective Sep 10, 2003 - [AD 98-14-02](https://openairdocs.org/ad/98-14-02): Fuel Manifold Transfer Tubes · Pratt & Whitney Canada PW118, PW118A, PW118B and 17 more. Effective Aug 31, 1998 - [AD 97-17-05](https://openairdocs.org/ad/97-17-05): Gas Generator Case Drain Ports · Pratt & Whitney Canada PW118, PW118A, PW118B and 17 more. Effective Sep 9, 1997 - [AD 94-11-11](https://openairdocs.org/ad/94-11-11): Intercompressor Case · Pratt & Whitney Canada PW118A, PW123, PW124B and 2 more. Effective Jul 25, 1994 - [AD 92-17-14](https://openairdocs.org/ad/92-17-14): Fuel Pump · Pratt & Whitney Canada PW123, PW124B, PW125B and 1 more. Effective Nov 18, 1992 - [AD 91-24-03](https://openairdocs.org/ad/91-24-03): Turbomachinery Magnetic Chip Detector · Pratt & Whitney Canada PW123, PW124B, PW125B and 1 more. Effective May 26, 1992 - [AD 91-06-02](https://openairdocs.org/ad/91-06-02): Turbomachinery Magnetic Chip Detector · Pratt & Whitney Canada PW118, PW118A, PW120 and 6 more. Effective Mar 29, 1991 Historical (superseded or no longer in force): - [AD 2012-11-14](https://openairdocs.org/ad/2012-11-14) (historical): Propeller shafts · Pratt & Whitney Canada PW118, PW118A, PW118B and 20 more. Effective Jul 20, 2012 ## Registered aircraft None registered with this engine model now. ## NTSB investigations (2) 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 CHI97LA285](https://openairdocs.org/ntsb/CHI97LA285), Sep 7, 1997: British Aerospace BAE-ATP (N855AW), Peru, IL, no damage. Probable cause: sudden/unexpected encounter with clear air turbulence. - [NTSB CHI93IA140](https://openairdocs.org/ntsb/CHI93IA140), Apr 11, 1993: British Aerospace BAE-ATP (N855AW), Oshkosh, WI, incident, no damage. Probable cause: an inoperative engine nacelle anti-ice system, and ice ingestion. ## FAA accident and incident reports (5) 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 19980409022949I](https://openairdocs.org/incident/19980409022949I), Apr 9, 1998: N855AW, Chicago, IL, Minor damage. On pushback rt engine running ground crew unhooked aircraft without signal to set brakes or chocks. Struck tug. - [Accident 19970906044549A](https://openairdocs.org/incident/19970906044549A), Sep 6, 1997: Bag ATP (N855AW), Peru, IL, 2 fatal. Severe turbulence at cruise 2 flight attendants injured. Cat at night. Scattered thin clouds. Seat belt sign off. (-23) the aircraft encountered severe… - [Incident 19920707028399I](https://openairdocs.org/incident/19920707028399I), Jul 7, 1992: Bag BAE146100A (N855AW), Peoria, IL. Left engine fire warning on descent. Secured engine. Landed safely. Fire warning system failed to disclose cause. - [Incident 19910719041309I](https://openairdocs.org/incident/19910719041309I), Jul 19, 1991: Bag ATP (N855AW), Appleton, WI. Overheat on cabin floor due to loose clamp on airconditioning system. Diverted for landing. - [Incident 19910218010709I](https://openairdocs.org/incident/19910218010709I), Feb 18, 1991: Bac 146300A (N855AW), Green Bay, WI. Smoke in cockpit. Lost all radios after takeoff. Continued to destination. Microphone select switch shorted. ## Service difficulty reports (75, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR CA140630001](https://openairdocs.org/sdr/CA140630001), Jun 2, 2014: FUEL CONTROL. MALFUNCTIONED. (CAN) DURING APPROACH, THE LT ENGINE LOST POWER AND THE CREW ELECTED TO SHUT IT DOWN BEFORE MAKING AN UNEVENTFUL SINGLE ENGINE LANDING. POST FLIGHT TROUBLESHOOT - [SDR CA140602023](https://openairdocs.org/sdr/CA140602023), May 23, 2014: ENGINE. FLAMED OUT. (CAN) IN THE CLIMBOUT, THE FLIGHT ENCOUNTERED SOME ICE AND TO TURBURLENCES AND THE LT ENGINE SUDDENLY FLAMED OUT. AUTO RE-LIGHT ACTIVATED END THE ENGINE RE-LIT - [SDR CA131216010](https://openairdocs.org/sdr/CA131216010), Dec 11, 2013: ENGINE. POWER LOSS. (CAN) ON CLIMBING, WHEN PASSING FL70, ENGINE TORQUE STARTED TO FLUCTUATE INDUCING LARGE YAW MOMENTS. THE CREW IMMEDIATELY REDUCED ENGINE POWER AND LEVELED OFF A - [SDR CA120827010](https://openairdocs.org/sdr/CA120827010), Aug 21, 2012: ENGINE. FAILED. (CAN) DURING A DOMESTIC REVENUE FLIGHT, A LOUD BANG WAS REPORTEDLY HEARD AND ITT INCREASE BEFORE THE ENGINE WAS SHUTDOWN BY THE CREW. - [SDR CA090911011](https://openairdocs.org/sdr/CA090911011), Aug 21, 2009: ENGINE. SEIZED. (CAN) ON TAKEOFF ROLL ENGINE TEMPERATURE WAS SEEN TO INCREASE AND TAKEOFF WAS ABORTED. SUBSEQUENT INSPECTION INDICATED SEIZURE OF ALL ROTORS. THE ENGINE WILL BE - [SDR CA080711010](https://openairdocs.org/sdr/CA080711010), Jul 5, 2008: CONNECTOR. CONTAMINATED. (CAN) DURING FLIGHT, THE ENGINE TORQUE STARTED TO FLUCTUATE BETWEEN 60% TO 120% AND THE ENGINE SHUT ITSELF DOWN. TROUBLESHOOTING REVEALED HEAVY CONTAMINATION ON - [SDR CA080814001](https://openairdocs.org/sdr/CA080814001), Jul 3, 2008: ENGINE. FLAMED OUT. (CAN) THE ENGINE FLAMED OUT AND THEN RELIT (AUTO RELIGHT) WITHIN 2 SEC. THE OCCURRENCE HAPPENED APPROXIMATELY 10 MIN. AFTER ENCOUNTERING SEVERE WEATHER INCLUDIN - [SDR CA070914003](https://openairdocs.org/sdr/CA070914003), Jul 18, 2007: TUBE. FRACTURED. (CAN) THE ENGINE SHUTDOWN UNCOMMANDED IN CRUISE. SUBSEQUENT INSPECTION REVEALED A FRACTURED FUEL CONTROL P3 AIR SUPPLY TUBE. (TC NR 20070914003) - [SDR CA061219014](https://openairdocs.org/sdr/CA061219014), Nov 9, 2006: SEAL. LEAKING. (CAN) DURING CRUISE, THE ENGINE OIL PRESSURE BEGAN TO FLUCTUATE IN THE RED BAND. THE ENGINE WAS SHUTDOWN IN FLIGHT AND THE AIRCRAFT RETURNED TO POINT OF DEPARTU - [SDR FDKA200608207](https://openairdocs.org/sdr/FDKA200608207), Aug 15, 2006: ENGINE. LACK OF LUBE. FDM 6179 ALB. THE AIRCRAFT ABORTED TAKEOFF DUE TO A NR 1 ENGINE OIL PRESSURE WARNING. CONTRACT MX SERVICED NR 1 ENGINE WITH 3 QUARTS OF OIL. PERFORMED ENGINE RU - [SDR CA060410006](https://openairdocs.org/sdr/CA060410006), Apr 6, 2006: CYLINDER. CORRODED. AT DISASSEMBLY BY FIRST AIR MAINTENANCE SERVICES (EASA APPROVAL NR 145-7030) THE OUTER CYLINDER WAS FOUND TO HAVE SEVERE CORROSION, VIRTUALLY PERFORATED AND ASS - [SDR CA051006010](https://openairdocs.org/sdr/CA051006010), Sep 12, 2005: COOLER. DAMAGED. (CAN) THE ENGINE LOW OIL PRESSURE WARNING ANNUNCIATED AND THE ENGINE WAS SHUTDOWN IN FLIGHT. SUBSEQUENT INSPECTION REVEALED THE PRESENCE OF FUEL IN THE ENGINE O - [SDR CA050621016](https://openairdocs.org/sdr/CA050621016), Jun 14, 2005: ENGINE. SHUTDOWN. (CAN) THE ENGINE EXPERIENCED AN IN-FLIGHT SHUTDOWN UNDER UNKNOWN CIRCUMSTANCES. MFG WILL MONITOR THE INCIDENT AND ADVISE OF ROOT CAUSE, ONCE DETERMINED. - [SDR QXEA200500837](https://openairdocs.org/sdr/QXEA200500837), May 3, 2005: VALVE. STICKING. PDX - AFTER TAKEOFF WITH BLEEDS ON AND HEAT IN A WARM SETTING, COULD SMELL ODOR AND SMOKE DETECTOR IN LAVATORY WENT OFF, FLIGHT ATTENDANT RESET ALARM ONCE, SMOK - [SDR UF6A991201](https://openairdocs.org/sdr/UF6A991201), Dec 4, 1999: OIL CAP. DISLODGED. ORD - FLT 5712 - THE NR 2 ENGINE LOW PRESSURE ILLUMINATED AND PRESSURE DROPPED BELOW RED LINE. NR 2 ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED AND FOUND OIL CA - [SDR UF6A991103](https://openairdocs.org/sdr/UF6A991103), Nov 4, 1999: FILTER. DIRTY. CAK - FLT 5712 - THE NR 1 ENGINE OIL FILTER CWP ILLUMINATED DURING TAKEOFF. MAINTENANCE REMOVED AND REPLACED THE OIL PRESSURE AND SCAVENGE FILTERS. POWER ASSURA - [SDR UF6A991016](https://openairdocs.org/sdr/UF6A991016), Oct 12, 1999: FUEL CONTROL. FAILED. SBN - FLT 5751 - DURING CRUISE, THE NR 1 ENGINE TORQUE BEGAN TO SURGE PLUS/MINUS 5 PERCENT. TORQUE PEAKED AT 120 PERCENT FOR 1 SECOND THEN ROLLED BACK TO 0 PERC - [SDR UF6A991010](https://openairdocs.org/sdr/UF6A991010), Oct 3, 1999: FILTER. DIRTY. ORD - FLT 5715 - ON TAKEOFF ROLL, THE NR 1 ENGINE OIL FILTER CWP ILLUMINATED. MAINTENANCE REMOVED AND REPLACED THE LP AND HP FILTERS. POWER ASSURANCE RUNS WERE - [SDR UF6A990802](https://openairdocs.org/sdr/UF6A990802), Aug 7, 1999: FUEL CONTROL. FAILED. CWA - FLT 5716 - THE NR 2 ENGIEN WENT TO 120.4 PERCENT AND REMAINED THERE AFTER TAKEOFF. MAINTENANCE REMOVED AND REPLACED THE NR 2 MECHANICAL FUEL CONTROL. SYST - [SDR UF6A990756](https://openairdocs.org/sdr/UF6A990756), Jul 21, 1999: ENGINE. FAILED. SBN - FLT 5762 - ITT EXCEEDED 800 DEGREES DURING CLIMB. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE. SYSTEM OPS CHECKED GOOD. (M) - [SDR UF6A990708](https://openairdocs.org/sdr/UF6A990708), Jul 8, 1999: REDUCT GEARBOX. FAILED. SBN - THE NR 2 REDUCTION GEARBOX OIL ANALYSIS IS SHOWING A HIGH CONCENTRATION OF METAL. MAINTENANCE REMOVED AND REPLACED THE NR 2 REDUCTION GEAR BOX. SYSTEM OPS - [SDR UF6A990704](https://openairdocs.org/sdr/UF6A990704), Jul 3, 1999: REDUCT GEARBOX. CONTAMINATED. SBN - THE NR 2 REDUCTION GEARBOX OIL ANALYSIS IS SHOWING A HIGH CONCENTRATION OF METAL. MAINTENANCE REMOVED AND REPLACED THE NR 2 REDUCTION GEARBOX. SYSTEM OPS - [SDR UF6A990623](https://openairdocs.org/sdr/UF6A990623), Jun 30, 1999: SEALS. FAILED. GRB - THE NR 2 PROP CWP ILLUMINATED WHEN POWER WAS ADVANCED ON TAKEOFF AND LEFT ENGINE WENT INTO UNCOMMANDED REVERSE DURING ABORTED TAKEOFF. MAINTENANCE REMOVED - [SDR UF6A990611](https://openairdocs.org/sdr/UF6A990611), Jun 12, 1999: ENGINE. FAILED. ORD - FLT 5708 - DURING CLIMB, THERE WAS A LOUD POP FROM THE LEFT SIDE. IMMEDIATELY THE NR 1 ENGINE OIL PRESSURE, ENGINE CONTROL CWP ILLUMINATED WITH NR 1 ENGIN - [SDR UF6A990556](https://openairdocs.org/sdr/UF6A990556), May 17, 1999: ENGINE. SMOKING. ORD - FLT 5702 - SMOKE EMANATING FROM THE NR 2 ENGINE ON TAXI IN FROM LANDING. MAINTENANCE PERFORMED DRY MOTOR OF ENGINE AND NORMAL ENGINE RUNS WITH NO DEFECTS - [SDR UF6A990524](https://openairdocs.org/sdr/UF6A990524), May 8, 1999: FILTER. DIRTY. PIA - FLT 5745 - NR 1 ENGINE OIL FILTER CWP ILLUMINATED DURING TAKEOFF ROLL. MAINTENANCE REMOVED AND REPLACE THE NR 1 ENGINE MAIN OIL PRESSURE AND SCAVENGE FILT - [SDR UF6A990526](https://openairdocs.org/sdr/UF6A990526), May 8, 1999: ENGINE. SMOKING. CWA - FLT 5734 - ON SHUTDOWN, THE NR 1 ENGINE WAS EMITTING BLUE SMOKE FORM SIDES OF COWLING DURING OPERATION OF THE FEATHER LEVERS. THIS OCCURRED UNTIL ENGINE S - [SDR 99ZZZM793](https://openairdocs.org/sdr/99ZZZM793), May 6, 1999: TUBE. DAMAGED. SBN - LEFT AND RIGHT FUEL SUPPLY TUBES HAS SEVERAL DENTS. MAINTENANCE REMOVED AND REPLACED TUBES. (M) - [SDR UF6A990532](https://openairdocs.org/sdr/UF6A990532), May 6, 1999: TUBE. DAMAGED. SBN - LEFT AND RIGHT FUEL SUPPLY TUBES HAS SEVERAL DENTS. MAINTENANCE REMOVED AND REPLACED TUBES. (M) - [SDR UF6A990317](https://openairdocs.org/sdr/UF6A990317), Mar 25, 1999: CONNECTOR. CONTAMINATED. ORD - FLT 5742 - NR 1 ENGINE TORQUE NH AND NL OCCILATES DURING CLIMB. MAINTENANCE INSPECTED THE NR 1 ENGINE RIGGING AND CLEANED THE EEC CONNECTIONS. PERFORMED P - [SDR UF6A990122](https://openairdocs.org/sdr/UF6A990122), Jan 29, 1999: EEC. MALFUNCTIONED. GRB - FLT 5738 - ON TAKEOFF, NR 1 ENGINE TORQUE DECREASED BY APPROXIMATELY 20 PERCENT. FURTHER POWER LEVEL INCREASES HAD NO EFFECT. MAINTENANCE CLEARED THE NR 1 - [SDR UF6A980520](https://openairdocs.org/sdr/UF6A980520), Aug 29, 1998: MFCU. FAILED. ORD - FLT 5753 - NR 2 ENGINE ROLLED BACK TO ZERO PERCENT TORQUE IN-FLIGHT FOLLOWED BY LOW OIL PSI 'CWP'. MAINTENANCE REMOVED AND REPLACED MFCU. PERFORMED POWER - [SDR UF6A980814](https://openairdocs.org/sdr/UF6A980814), Aug 29, 1998: EEC. FAILED. ORD - FLT 5754 - NR 1 ENGINE CONTROL FROZEN ON TAKEOFF ROLL AND PROP FEATHERED. MAINTENANCE INSPECTED ENGINE CONTROL RIGGING, CHECKED CONTINUITY AND RESISTANCE - [SDR UF6A980806](https://openairdocs.org/sdr/UF6A980806), Aug 11, 1998: ECC. MALFUNCTIONED. ORD - FLT 5758 - AFTER LANDING, NR 1 ENGINE FEATHERED ON ITS OWN. MAINTENANCE INSPECTED ENTIRE SYSTEM AND RAN ENGINES. COULD NOT DUPLICATE. SYSTEM OPS CHECKED G - [SDR UF6A980804](https://openairdocs.org/sdr/UF6A980804), Aug 8, 1998: CONTROLS. VIBRATION. ORD - FLT 5727 - HIGH PITCH HUM HEARD IN COCKPIT AFTER TAKEOFF WITH VIBRATION FELT IN FLIGHT CONTROLS, POWER LEVERS, TILLER, AND FLOOR. MAINTENANCE PERFORMED OP - [SDR UF6A980803](https://openairdocs.org/sdr/UF6A980803), Aug 5, 1998: EEC. FAILED. ORD - FLT 5712 - NR 1 ENGINE FEATHERED AFTER LANDING WITHOUT MOVEMENT OF CONDITION LEVER. MAINTENANCE REMOVED AND REPLACED NR 1 EEC. SYSTEM OPS CHECKED GOOD. (M - [SDR UF6A980713](https://openairdocs.org/sdr/UF6A980713), Jul 17, 1998: EEC. MALFUNCTIONED. ORD - FLT 5749 - NR 1 TORQUE FLUCTUATES 25 PERCENT AT SETTINGS OF 15 PERCENT TO 40 PERCENT ON APPROACH. MAINTENANCE REMOVED AND REPLACED NR 1 EEC. PERFORMED OPS - [SDR UF6A980711](https://openairdocs.org/sdr/UF6A980711), Jul 16, 1998: SWITCH. OUT OF ADJUST. ORD - FLT 5739 - NEITHER AUTOFEATHER ARMED ON TAKEOFF ON RIGHT ENGINE. MAINTENANCE ADJUSTED MICROSWITCH ON NR 2 ENGINE CONDITION LEVER. SYSTEM OPS CHECKED GOOD. - [SDR UF6A980710](https://openairdocs.org/sdr/UF6A980710), Jul 15, 1998: VALVE. FAILED. SBN - FLT 5764 - AFTER TAKEOFF, WHEN BLEEDS ARE SELECTED ON NR 1 ENGINE, TORQUE DROPPED TO 70 PERCEN, NL 92 PERCENT, NH 90 PERCENT. MAINTENANCE REMOVED AND REPL - [SDR UF6A980709](https://openairdocs.org/sdr/UF6A980709), Jul 10, 1998: ENGINE. MALFUNCTIONED. SBN - FLT 5751 - ON CLIMB-OUT, LT NR 1 ENGINE TORQUE ROLLED BACK TO 40 PERCENT. NH AND NL WERE UP IN THE 115 PERCENT RANGE. MAINTENANCE PERFORMED RESISTANCE CHE - [SDR 98ZZZX2815](https://openairdocs.org/sdr/98ZZZX2815), Jun 4, 1998: EEC. FAILED. ORD - FLT 5712 - DURING CLIMB AT FL 180, NR 1 ENGINE LOST 20 PERCENT TORQUE AND INCREASED 40 DEGREES ITT. MAINTENANCE REMOVED AND REPLACED THE NR 1 EEC. SYSTEM - [SDR UF6A980518](https://openairdocs.org/sdr/UF6A980518), May 27, 1998: CAP. LOOSE. SBN - FLT 5751 - NR 2 ENGINE LOW OIL RPESSURE CWP ILLUMINATED DURING FLIGHT. ENGINE WAS SHUT DOWN PER EMERGENCY CHECKLIST. MAINTENANCE PERFORMED INSPECTION OF N - [SDR UF6A980405](https://openairdocs.org/sdr/UF6A980405), Apr 9, 1998: ENGINE. DAMAGED. ORD - NR 1 PROP ASSEMBLY WAS STRUCK BY AIRCRAFT TUG DURING PUSH BACK. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE AND PROP ASSEMBLY. SYSTEM OPS CHECKED GOOD. ( - [SDR UF6A980205](https://openairdocs.org/sdr/UF6A980205), Feb 11, 1998: BLEED VALVE. FAILED. ORD - FLT 5708 - IN CLIMB, ITT AND NH WERE APPROACHING RED LINE ON LEFT ENGINE. PULLED POWER LEVERS BACK AS TO NTO EXCEED LIMITS. MAINTENANCE INSPECTED SYSTEM A - [SDR UF6A971104](https://openairdocs.org/sdr/UF6A971104), Nov 16, 1997: FUEL HEATER. FAILED. ORD - FLT 5729 - ENGINE OIL CWP ILLUMINATED IN FLIGHT. WHEN PROPS PULLED TO 85 PERCENT OIL PRESSURE FLUCTUATED BETWEEN RED LINE AND 56 PSI. MAINTENANCE REMOVED - [SDR UF6A971002](https://openairdocs.org/sdr/UF6A971002), Oct 13, 1997: EEC. MALFUNCTIONED. ORD - FLT 5715 - AFTER TAEKOFF, LOST THE NR 1 TORQUE AND DIGITAL RATING INDICATIONS, THEN WITH CLIMB POWER SELECTED THE NR 1 ENGINE STARTED TO FLUCTUATE WITH TO - [SDR UF6A970806](https://openairdocs.org/sdr/UF6A970806), Aug 14, 1997: FUEL CONTROL. FAILED. GRB - FLT 5734 - SHORTLY AFTER V1 THERE WAS A POWER ROLL BACK, SUBSEQUENT RELIGHT WITH TEMPORARY TORQUE INCREASE THEN COMPLETE ENGINE FAILURE ON NR 1 ENGINE. EN - [SDR UF6A970804](https://openairdocs.org/sdr/UF6A970804), Aug 10, 1997: FUEL CONTROL. FAILED. AZO - FLT 5700 - THE LT ENGINE DEVELOPED AN UNCOMMANDED 'ROLL BACK' TO APPROXIMATELY 20 PERCENT TQ FROM A CLIMB POWER SETTING. INITIAL ADJUSTMENTS OF THE POWER - [SDR UF6A970802](https://openairdocs.org/sdr/UF6A970802), Aug 4, 1997: EEC. FAILED. ORD - FLT 5712 - AFTER TAKEOFF LEFT ENGINE COULD NOT ACHIEVE ABOVE 70 PERCENT TQ. (ITT 650) AT FULL THROTTLE. AFTER LANDING, GENERATOR WOULD DROP OFF WHEN POWER - [SDR UF6A970702](https://openairdocs.org/sdr/UF6A970702), Jul 4, 1997: ENGINE. MALFUNCTIONED. SBN - NR 2 ENGINE HAS HIGH ITT. MAINTENANCE REMOVED AND REPLACED NR 2 ENGINE. SYSTEM OPS CHECKED GOOD. (M) All 75: https://openairdocs.org/engine/pratt-whitney-canada-pw126a/reports.md ## 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 SE2805SO](https://openairdocs.org/stc/SE2805SO): Installation of an oil tank safety cap adapter which is intended to prevent loss of oil in the event of loss or damage to the oil filler cap. Jet Avion Corporation - [STC SE00023EN](https://openairdocs.org/stc/SE00023EN): Installation of Oil Tank Filler Neck Check Valve, Part Number TSA100Sa, Parts List Rev A dated 7/3/1997. Helicopter Support Inc Services Div - [STC SE00344LA](https://openairdocs.org/stc/SE00344LA): Installation of Western Filter Corp. oil filter element, P/N WF334638, as a replacement for the P&W Canada filter element, P/N 3112895-01, in the lubrication system. Western Filter Corporation - [STC SE792NE](https://openairdocs.org/stc/SE792NE): Installation of oil tank filler neck check valve P/N TSA-100 SA. Aviation Components Support - [STC SE00097LA](https://openairdocs.org/stc/SE00097LA): Installation of strainer element, P/N 90220, as a replacement for strainer element, P/N 3106403-01, in the oil pressure transfer tube assembly. Ejay Filtration, Inc - [STC SE01045AT](https://openairdocs.org/stc/SE01045AT): Installation of engine ignition lead. Unison Industries - [STC SE00074LA](https://openairdocs.org/stc/SE00074LA): Installation of Puroflow filter element, P/N 11-11064, as a replacement for P&W Canada filter element, P/N3029315 (and optional numbers) in the reduction gearbox scavenge oil filtering system. Puroflow Corporation - [STC SE00075LA](https://openairdocs.org/stc/SE00075LA): Installation of Puroflow filter element, P/N 11-11065, as a replacement for P&W Canada filter element, P/N3112895-01, in the reduction gearbox scavenge oil filtering system. Puroflow Corporation - [STC SE00076LA](https://openairdocs.org/stc/SE00076LA): Installation of Puroflow filter element, P/N 11-11084, as a replacement for P&W Canada filter element, P/N3035681 (and optional part numbers) in the engine fuel filtering system. Puroflow Corporation - [STC SE00079LA](https://openairdocs.org/stc/SE00079LA): Installation of Puroflow filter element, P/N 11-11085, as a replacement for P&W Canada filter element, P/N3035728 (and optional part numbers) in the engine fuel filtering system. Puroflow Corporation - [STC SE00082LA](https://openairdocs.org/stc/SE00082LA): Installation of Puroflow filter element, P/N 11-11102, as a replacement for P&W Canada filter element, P/N3038454, in the engine fuel filtering system. Puroflow Corporation - [STC SE00083LA](https://openairdocs.org/stc/SE00083LA): Installation of Puroflow filter element, P/N 70-106, as a replacement for P&W Canada filter element, P/N3034190, in the reduction gearbox scavenge oil filtering system. Puroflow Corporation ## PMA parts (OpenAirDocs) (313, 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. - [3032255CL2CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191902940220260217155849.0001): Weight Balance Compressor. Core Parts LLC · PMA PQ05326NM · Replaces 3032255CL2 · Jan 6, 2026 - [3032255CL4CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181545932020260217155850.0001): Weight Balance Compressor. Core Parts LLC · PMA PQ05326NM · Replaces 3032255CL4 · Jan 6, 2026 - [3032255CL5CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168234696220260217155850.0001): Weight Balance Compressor. Core Parts LLC · PMA PQ05326NM · Replaces 3032255CL5 · Jan 6, 2026 - [3032255CL3CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152118224920260217155849.0001): Weight Balance Compressor. Core Parts LLC · PMA PQ05326NM · Replaces 3032255CL3 · Jan 6, 2026 - [ST3086-013CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139847229320260217160512.0001): Packing Preformed. Core Parts LLC · PMA PQ05326NM · Replaces ST3086-013 · Jan 6, 2026 - [3032255CL1CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137001436220260217155848.0001): Weight Balance Compressor. Core Parts LLC · PMA PQ05326NM · Replaces 3032255CL1 · Jan 6, 2026 - [3015234CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190658425320260217153955.0001): Nut Self-Locking Shank. Core Parts LLC · PMA PQ05326NM · Replaces 3015234 · Jan 5, 2026 - [3031098CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126672255320260217153252.0001): Rivet Tubular Countersunk. Core Parts LLC · PMA PQ05326NM · Replaces 3031098 · Jan 5, 2026 - [3010880CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117245394120260217153009.0001): Gasket Igniter. Core Parts LLC · PMA PQ05326NM · Replaces 3010880 · Jan 5, 2026 - [3003987CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110231097220260217153647.0001): Pin Lock. Core Parts LLC · PMA PQ05326NM · Replaces 3003987 · Jan 5, 2026 - [3018344CP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103008963120260217153140.0001): Rivet Tubular Countersunk. Core Parts LLC · PMA PQ05326NM · Replaces 3018344 · Jan 5, 2026 - [WF329398](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173837820120250624152917.0001): Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3035681, 5905587, Alternate… · Jun 2, 2025 - [WF429940](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168842044420250624152911.0001): Switch, Differential Pressure Indicator. Donaldson Company Inc · PMA PQ2432CE · Replaces 5905588, 3035683 · Jun 2, 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 - [WF334638](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197682983220250602133018.0001): Cleanable Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3112895-01, 3059255-01, 3059254-01… · May 23, 2025 - [WF331451](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192483939520250602133018.0001): Non-Cleanable Oil Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3034190, Alternate: 3059253-01… · May 23, 2025 - [WF334591](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121150890220250602133018.0001): Filter Element. Donaldson Company Inc · PMA PQ2432CE · Replaces 3038454, Alternate: 11-11102… · 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 - [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 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189082045720240129140717.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 7590048AM · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184790841820240129140716.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059777-01 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178335771520240129140707.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059255-01 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176073949320240129140706.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059252-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173270088920240129140709.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3020291 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171676279420240129140714.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3038454 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168806079720240129140707.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3112895-01 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168658722420240129140716.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 725825 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167757756320240129140706.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059253-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165226990020240129140710.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3015330 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161839470920240129140715.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3035729 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159127581320240129140711.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3034742 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155717735120240129140711.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3034743 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154138367520240129140715.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3035728 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153308215920240129140710.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3014635 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152901791720240129140712.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059256-01 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146767814120240129140705.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3034190 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145978549120240129140715.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059775-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145669272020240129140709.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3036376 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139656555320240129140715.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059776-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135679117420240129140714.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3111843-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130080262720240129140709.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3034508 · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128560613620240129140707.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059254-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128292367220240129140713.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3059414-01 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123642627020240129140715.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3035317 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117230667420240129140713.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3073301-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116433161920240129140708.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3029316 · Dec 11, 2023 - [7590526AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113632618020240129140716.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 7587615AM · Dec 11, 2023 - [7587923AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113611469520240129140707.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 7590047-101AM · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105468072420240129140712.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3054626-01 · Dec 11, 2023 - [7578659AM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105269689420240129140708.0001): Filter Element. PTI Technologies Inc · PMA PQ1341NM · Replaces 3029315 · Dec 11, 2023 All of them: https://openairdocs.org/engine/pratt-whitney-canada-pw126a/pma.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.