# Service difficulty reports: Pratt & Whitney Canada PT6C-67C

A list on [Pratt & Whitney Canada PT6C-67C](https://openairdocs.org/engine/pratt-whitney-canada-pt6c-67c.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 3 · 131 reports

- [SDR 2026FA0000904](https://openairdocs.org/sdr/2026FA0000904.md): Hydraulic Line · ruptured · Oct 24, 2026 · N9YTKD · Agusta AW139 · Hydraulic System, Main
  > DURING A START SEQUENCE FOR A MAINTENANCE/ AIRCRAFT GROUND RUN A COMPLETE #2 HYDRAULIC SYSTEM FAILURE OCCURRED. CREW NOTED AFTER ENGINE MODE SWITCHES WAS PLACED INTO 'FLIGHT' #2 HYDRAULIC PRESSURE DROPPED RAPIDLY, ACCOMPANIED BY CAS MESSAGES ILLUMINATING AND
- [SDR 2026FA0000825](https://openairdocs.org/sdr/2026FA0000825.md): Hydraulic Line · ruptured · Oct 7, 2026 · N9YTKD · Agusta AW139 · Hydraulic System, Main
  > DURING CRUISE AFTER DEPARTING, BTWN 5-10 MINUTES AFTER TAKE-OFF, AROUND 2000FT AND APPROX 140KTS, CREW NOTICED A CAS MSG HYD1 MIN, FOLLOWED BY 1 HYD PUMP, 1 HYD PRESS, 1 SERVO & EMERG UTIL PRESS CAUTIONS ILLUMINATED. AT THE POINT OF CAS INDICATIONS; MLG WERE
- [SDR 2026FA0000526](https://openairdocs.org/sdr/2026FA0000526.md): Windshield · cracked · Jun 17, 2026 · N9YENT · Agusta AW139 · Flight Compartment Windows
  > CREW REPORTED THAT UPON LANDING A “POP” SOUND WAS HEARD. SUBSEQUENT MULTIPLE CRACKS OBSERVED ON THE LT HEATED GLASS WINDSHIELD COMMENCING FROM AROUND THE BOTTOM RIGHT CORNER OF THE WINDSHIELD PROPAGATING VERTICALLY UPWARDS AND HORIZONTALLY LEFT ACROSS THE BOTT
- [SDR 2026FA0000299](https://openairdocs.org/sdr/2026FA0000299.md): Tail Boom · corroded · Apr 27, 2026 · N485SH · Agusta AW139 · Rotorcraft Tail Boom
  > DURING THE PERFORMANCE OF THE GENERAL VISUAL INSPECTION AS SPECIFIED IN THE CONDITIONS OF PSE/TQ/2025/215289 REPAIR DEFERRAL LETTER, EVIDENCE OF PROPAGATION AND WORSENING CONDITIONS WAS DETERMINED OF THE CORROSION AT STA 8700, BL0.0 LOWER STRUCTURE OF 9Y-ELL T
- [SDR 2026FA0000287](https://openairdocs.org/sdr/2026FA0000287.md): Windshield · cracked · Apr 23, 2026 · N9YTKD · Agusta AW139 · Flight Compartment Windows
  > ON 22 APRIL 2026 AT 1:56PM, THE CREW REPORTED WHEN TRANSITIONING INTO HOVER A "POP" SOUND WAS HEARD. SUBSEQUENTLY MULTIPLE VERTICAL CRACKS WERE OBSERVED ON THE R/H HEATED GLASS WINDSHIELD COMMENCING FROM THE BOTTOM LEFT CORNER OF THE WINDSHIELD TO THE TOP. N
- [SDR 2026FA0000238](https://openairdocs.org/sdr/2026FA0000238.md): Fuel Tank · leaking · Mar 16, 2026 · N9YTKD · Agusta AW139 · Fuel Storage
  > ON 16TH MARCH 2026, AFTER 9Y-TKD RETURNED TO THE HANGAR, A HEAVY DOWNPOUR OF JET FUEL EMANATING UNDERNEATH THE AIRCRAFT WAS OBSERVED. A DAILY INSPECTION WAS CONDUCTED; FUEL TANK LEAK WAS OBSERVED AT THE MAIN RIGHT FUEL TANK SUMP AREA. AIRCRAFT DEFUELED TO FA
- [SDR PN1R202602180001](https://openairdocs.org/sdr/PN1R202602180001.md): Seal · leaking · Feb 18, 2026 · N614CJ · Agusta AW139 · Turbine Engine Oil System
  > DURING INSPECTION, FOUND #1 ENGINE NO. 5 BEARING SEAL LEAKING.
- [SDR 2026FA0000122](https://openairdocs.org/sdr/2026FA0000122.md): Landing Gear · defective · Feb 9, 2026 · N9YENT · Agusta AW139 · Landing Gear System
  > MULTIPLE NR 2 WOW FAIL CAS MESSAGES. NOT FULLY EXTENDING. RIGHT MAIN LANDING GEAR SERVICED. EXTENSION AND RETRACTION OPERATIONAL CHECK CARRIED OUT SATISFACTORY. CIRCUIT BREAKER WAS RECYCLED, INITIAL FAULT OF “#2 WOW CAS” COULD NOT BE REPLICATED. RIGHT MAIN
- [SDR U0GA2025121900639](https://openairdocs.org/sdr/U0GA2025121900639.md): Frame · damaged · Dec 19, 2025 · N739BG · Agusta AW139 · Fuselage Main, Frame
  > THIS AIRCRAFT HAS BEEN GROUNDED. THE REPAIR FROM AS FOLLOWS; REMOVE AND REPLACED THE LEFT AND RIGHT BS 5700 FRAME 3P5338A13355 AND 3P5338A13455. IAW PSE/TQ/2024/172423.
- [SDR U0GA VP000639](https://openairdocs.org/sdr/U0GA%20VP000639.md): Tail Boom · corroded · Dec 19, 2025 · N739BG · Agusta AW139 · Rotorcraft Tail Boom
  > THIS AIRCRAFT HAS BEEN GROUNDED AT OUR REPAIR STATION ON VP-000639-2024 SINCE THE DATE OF DISCOVERY. THE REPAIR IS AS FOLLOWS; REPLACE LT SIDE PANEL, P/N 3G5350A07431C1 AND STA 8700 BULKHEAD FRAME, P/N 3G5306P14811 ON TAILBOOM P/N 3G5350A00135 S/N PZL003 TAILB
- [SDR 2026FA0000017](https://openairdocs.org/sdr/2026FA0000017.md): Stabilizer · cracked · Nov 19, 2025 · N41395 · Agusta AW139 · Rotorcraft Tail Boom
  > DURING A VISUAL INSPECTION OF 9Y-TKB AFTER FLIGHT THE LINE SUPERVISORS DISCOVERED THE CRACK ON THE TAILPLANE ASSEMBLY LEFT LEADING EDGE LOWER PANEL. LOCATION OF CRACK IS ESTIMATED TO BE STA 12370 AND BL (-940 THRU -718). A LOGBOOK ENTRY (LBE 206/25) WAS RAISE
- [SDR 2026FA0000022](https://openairdocs.org/sdr/2026FA0000022.md): Stabilizer · cracked · Nov 19, 2025 · N9YTKB · Agusta AW139 · Rotorcraft Tail Boom
  > REFENCES ARE MADE TO SDR UNIQUE CONTROL #2026FA0000017, #2026FA0000018 AND #2026FA0000020 RAISED PREVIOUSLY. #2026FA0000017 - ERRORS WERE MADE WHEN ENTERING THE AIRCRAFT SERIAL NUMBER (9Y-TKB) THIS SHOULD READ "41395" AS CORRECTED, #2026FA0000018 - DIFFICULTY
- [SDR 2023F00139](https://openairdocs.org/sdr/2023F00139.md): Engine · inoperative · May 2, 2023 · N152PH · Agusta AW139 · Engine (Turbine/Turboprop)
  > DURING TAKEOFF, BUT PRIOR TO DP, PIC NOTED LARGE TORQUE SPLIT AND#2 ENGINE OPERATING OUT OF LIMITS. ABORTED TAKEOFF.
- [SDR U0GA202304240001](https://openairdocs.org/sdr/U0GA202304240001.md): Attach Bracket · bent · Apr 23, 2023 · N389B · Agusta AW139 · Landing Gear System
  > APPROACHING KC875 (LUCIUS) ON OUR SECOND FLIGHT LEG (FROM GC608), LOWERING THE LANDING GEAR RESULTED IN THE LEFT MAIN GEAR INDICATOR REMAINING AMBER. REFERRING TO THE QRH, WE WENT THROUGH THE PROPER PROCEDURE INCLUDING THE EMERGENCY BLOW DOWN. LIGHT REMAINED A
- [SDR U0GA ASR9556](https://openairdocs.org/sdr/U0GA%20ASR9556.md): Light · shorted · Feb 3, 2023 · N603PW · Agusta AW139 · Passenger Compartment Lighting
  > WHILE BEING VECTORED TO ITIWE ON THE RNAV 36 APPROACH INTO KHUM, PASSENGERS IN THE CABIN OF THE AIRCRAFT STARTED YELLING TO GET THE CREW'S ATTENTION ABOUT A STRONG BURNING ODOR. THE FLIGHT CREW CONFIRMED THE PRESENCE OF THE ELECTRICAL/PLASTIC BURNING SMELL.
- [SDR U0GA ASR12345](https://openairdocs.org/sdr/U0GA%20ASR12345.md): None · none · Sep 24, 2022 · N811T · Agusta AW139 · Smoke Detection
  > HEAVY SMOKE IN THE COCKPIT, UNCOMMANDED COLLECTIVE AND CYCLIC INPUT LEADING TO EMERGENCY DESCENT AND POWER CONTROL VIA ENGINE THROTTLES. AUTOROTATIVE LANDING PERFORMED, AIRCRAFT WENT OFF RUNWAY AFTER LANDING. NTSB NOTIFIED PER 49 CFR 830. MORE DETAILS TO FOLLO
- [SDR 2022F00340](https://openairdocs.org/sdr/2022F00340.md): Life Raft · activated · Sep 11, 2022 · N118NZ · Agusta AW139 · Cabin Equipment/Furnishings
  > RIGHT LIFE RAFT SELF-DEPLOYED WHILE IN HANGAR
- [SDR ALGAASR8579](https://openairdocs.org/sdr/ALGAASR8579.md): Fire Warning · false indication · Sep 1, 2022 · N939B · Agusta AW139 · Fire Detection
  > AFTER LEVELING OFF AT 5000 FT THE NO 1 FIRE DET LIGHT IS ILLUMINATED. WE VERIFIED THERE WERE NO INSTRUMENT INDICATIONS OF A FIRE IN THE NO 1 ENGINE AND CONSULTED THE QRH. AFTER NOTING THERE WAS NO IMMEDIATE DANGER WE TURNED THE AIRCRAFT TO OGLE AND COMPLETE
- [SDR 2022F00267](https://openairdocs.org/sdr/2022F00267.md): None · none · Jun 28, 2022 · N639B · Agusta AW139 · Detection System
  > NO 1 FIRE DET CAUTION LIGHT ILLUMINATED WITH NO INDICATION OF FIRE AND RETURNED TO BASE.
- [SDR 2021FA0000104](https://openairdocs.org/sdr/2021FA0000104.md): Defog System · malfunctioned · Mar 24, 2021 · N8CP · Agusta AW139 · Ice/Rain Protection System
  > ON AN ILS APPROACH INTO KHPN WITH WEATHER AT MINIMUMS OUTSIDE THE INITIAL APPROACH FIX WITH THE HEAT/AC SYSTEM IN THE FULL “AUTO” MODE THE SYSTEM CYCLED BETWEEN MODES (AC/HEAT) AND FOGGED THE INTERIOR COCKPIT WINDSCREENS WITH HEAVY CONDENSATION. PREVIOUS EXPE
- [SDR AC2A20210221001](https://openairdocs.org/sdr/AC2A20210221001.md): Indicator · cracked · Feb 20, 2021 · N639MC · Agusta AW139 · Engine Air Intake System
  > INLET BARRIER FILTER MAINTENANCE INDICATOR AID FOUND CRACKED DURING INSPECTION.
- [SDR AC2A20210221002](https://openairdocs.org/sdr/AC2A20210221002.md): Indicator · cracked · Feb 20, 2021 · N639MC · Agusta AW139 · Engine Air Intake System
  > INLET BARRIER FILTER MAINTENANCE INDICATOR AID FOUND CRACKED DURING INSPECTION.
- [SDR AC2A2020033001](https://openairdocs.org/sdr/AC2A2020033001.md): Fuel Control · malfunctioned · Mar 27, 2020 · N139JP · Agusta AB139 · Fuel Control/Turbine Engines
  > WHEN ADVANCING #1 ENGINE FROM IDLE TO FLIGHT POSITION, #1 ENGINE BEGAN TO "RUN AWAY" AND THE AIRCRAFT SPUN APPROXIMATELY 25-30 DEGREES ON THE PAD AND STARTED TO ROLL OVER. THE PIC WAS STILL ON THE ENGINE MODE KNOB, IMMEDIATELY RETARDED TO #1 ENGINE BACK TO ID
- [SDR AC2A2020050113919](https://openairdocs.org/sdr/AC2A2020050113919.md): Filter · cracked · Jan 31, 2020 · N639MM · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE INDICATOR FOUND CRACKED. *SUPPLEMENTAL INFORMATION* PART NUMBER ENTERED ON ORIGINAL SDR IN SECTION 5 WAS IN ERROR. PART NUMBER WAS SUBMITTED AS 104440-201 AND SHOULD HAVE BEEN 104441-201. *SUPPLEMENTAL INFORMATION* THE UNIQUE CONTROL CODE WAS A
- [SDR AC2A2020050113917](https://openairdocs.org/sdr/AC2A2020050113917.md): Filter · cracked · Jan 26, 2020 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND CRACKED.
- [SDR AC2A2020050113918](https://openairdocs.org/sdr/AC2A2020050113918.md): Filter · cracked · Jan 26, 2020 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND CRACKED.
- [SDR AC2A2020050113916](https://openairdocs.org/sdr/AC2A2020050113916.md): Filter · cracked · Oct 6, 2019 · N639WW · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113914](https://openairdocs.org/sdr/AC2A2020050113914.md): Filter · cracked · Aug 4, 2019 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113915](https://openairdocs.org/sdr/AC2A2020050113915.md): Filter · cracked · Aug 4, 2019 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR CA190704005](https://openairdocs.org/sdr/CA190704005.md): Gearbox · making metal · Jun 30, 2019 · Agusta AW139 · Main Rotor Gearbox
  > (CAN) MAIN GEARBOX SUMP CHIP, ACTIVATED CHIP BURNER 3X. WITH NO SUCCESS. HAD CHIP ON START UP. (TC# 20190704005)
- [SDR AC2A2020050113921](https://openairdocs.org/sdr/AC2A2020050113921.md): Filter · cracked · Apr 28, 2019 · N639DS · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113912](https://openairdocs.org/sdr/AC2A2020050113912.md): Filter · cracked · Apr 28, 2019 · N639DS · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113913](https://openairdocs.org/sdr/AC2A2020050113913.md): Filter · cracked · Apr 28, 2019 · N639DS · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113920](https://openairdocs.org/sdr/AC2A2020050113920.md): Filter · cracked · Apr 28, 2019 · N639DS · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113910](https://openairdocs.org/sdr/AC2A2020050113910.md): Filter · cracked · Mar 15, 2019 · N639NA · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113911](https://openairdocs.org/sdr/AC2A2020050113911.md): Filter · cracked · Mar 15, 2019 · N639NA · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR CA190306009](https://openairdocs.org/sdr/CA190306009.md): Control Cable · seized · Mar 4, 2019 · Agusta AW139 · Engine Controls
  > (CAN) DEFECT: #1 ENGINE POWER CONTROL CABLE SEIZED. CORRECTIVE ACTION: #1 ENGINE POWER CONTROL CABLE REMOVED IAW 39-A-76-11-02-00A-720A-A NUMBER 1 POWER CONTROL CABLE-INSTALL PROCEDURE. ADJUSTMENT CARRIED OUT SATISFACTORY IAW 39-A-76-11-00-00A-271A-A POWER CON
- [SDR AC2A2020050113909](https://openairdocs.org/sdr/AC2A2020050113909.md): Filter · cracked · Nov 6, 2018 · N639MM · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113907](https://openairdocs.org/sdr/AC2A2020050113907.md): Filter · cracked · Oct 23, 2018 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113908](https://openairdocs.org/sdr/AC2A2020050113908.md): Filter · cracked · Oct 18, 2018 · N639MM · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113904](https://openairdocs.org/sdr/AC2A2020050113904.md): Indicator · cracked · Sep 18, 2018 · N639GG · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE INDICATOR FOUND CRACKED. *SUPPLEMENTAL INFORMATION* PART NUMBER ENTERED ON ORIGINAL SDR IN SECTION 5 WAS IN ERROR. PART NUMBER WAS SUBMITTED AS 104440-201 AND SHOULD HAVE BEEN 104441-201.
- [SDR AC2A2020050113905](https://openairdocs.org/sdr/AC2A2020050113905.md): Filter · cracked · Sep 18, 2018 · N639WW · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR AC2A2020050113906](https://openairdocs.org/sdr/AC2A2020050113906.md): Filter · cracked · Sep 18, 2018 · N639GG · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR HEER2018008021106](https://openairdocs.org/sdr/HEER2018008021106.md): Chip Detector · contaminated · Jul 31, 2018 · N149PH · Agusta AW139 · Turbine Engine Accessory Drive
  > NR 2 ENGINE CHIP LIGHT IN FLIGHT. FOUND SMALL SLIVER ON PLUG. REMOVED AND CHECKED FILTERS. NO OTHER PARTICLES FOUND. GROUND RUN AND LEAK CHECKED.
- [SDR AC2A2020050113902](https://openairdocs.org/sdr/AC2A2020050113902.md): Indicator · cracked · Jul 15, 2018 · N639NA · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR AC2A2020050113903](https://openairdocs.org/sdr/AC2A2020050113903.md): Filter · cracked · Jul 15, 2018 · N639NA · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR AC2A2020050113901](https://openairdocs.org/sdr/AC2A2020050113901.md): Indicator · cracked · Dec 15, 2017 · N639MC · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR HEER20170221030](https://openairdocs.org/sdr/HEER20170221030.md): Eec · failed · Feb 21, 2017 · N140PH · Agusta AW139 · Fuel Controlling System
  > NR 1 EEC FAILED CAS RED LIGHT ILLUMINATED, THE MAN LIGHT WAS ALSO ON. REPLACED EEC AND ALSO REPLACED FMM.
- [SDR AC2R2016032901](https://openairdocs.org/sdr/AC2R2016032901.md): Fitting · galled · Mar 7, 2016 · N639MC · Agusta AW139 · Main Rotor Transmission Mount
  > WHILE PERFORMING THE MGB BOLT INSPECTION ON THE LT LOWER FITTING, WE REMOVED THE COTTER PIN AND REMOVED THE NUT FROM THE FWD BOLT. WE ENSURED THE BOLT SPUN FREELY BEFORE WE ATTEMPTED TO REMOVE THE BOLT, WHICH IT DID BY HAND. THE BOLT EASILY REMOVED UPWARD UN
- [SDR ALGA20160307001](https://openairdocs.org/sdr/ALGA20160307001.md): Skin · debonded · Feb 24, 2016 · N9YELL · Agusta AW139 · Rotorcraft Tail Boom
  > DURING INVESTIGATION FOLLOWING A HUMS RED TRDS INDICATION & A SHARP RISE NOTED ON TRDS FSA S001A7 AT CRUISE. DARF BR-WH-021 INSPECTIONS REVEALED DE-BONDED SKIN UNDER THE SUPPORT STRUCTURE FOR THE TRDS BEARING. CURRENTLY WAITING FOR A REPLY FROM ENGINEERING.

Next page: https://openairdocs.org/engine/pratt-whitney-canada-pt6c-67c/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE engine_model_key = 'PT6C67C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-canada-pt6c-67c/reports

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