# Service difficulty reports: Garrett TPE331-10N

A list on [Garrett TPE331-10N](https://openairdocs.org/engine/garrett-tpe331-10n.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2026FA0000788](https://openairdocs.org/sdr/2026FA0000788.md): Engine · failed · Sep 25, 2026 · N440EH · Cessna 441 · Engine (Turbine/Turboprop)
  > DURING CRUISE FLIGHT AT FL290, ONE HOUR AFTER TAKEOFF, RIGHT ENGINE TORQUE QUICKLY FELL TO ZERO AND REMAINED, NO OSCILLATIONS. SIMULTANEOUSLY, RIGHT ENGINE EGT INCREASED TO BEYOND RED LINE AND REMAINED, NO OSCILLATIONS. AIRCRAFT YAWED AND BEGAN TO LOSE ALTITUD
- [SDR 2026FA0000619](https://openairdocs.org/sdr/2026FA0000619.md): Rod End · sheared · Jul 19, 2026 · N274GC · Cessna 441 · Landing Gear Retraction/Extension System
  > AFTER LANDING AND UPON ROLL OUT THE PILOT EXPERIENCED THE NOSE OF THE AIRCRAFT STARTING TO DROP. HE PULLED BACK ON THE YOKE AND THE NOSE CONTINUED TO DROP, AT WHICH TIME THE LEFT AND RIGHT PROPELLERS CONTACTED THE RUNWAY, WHICH CAUSED BOTH ENGINES TO SHUT DO
- [SDR 2026FA0000615](https://openairdocs.org/sdr/2026FA0000615.md): Hydraulic Line · leaking · Jul 9, 2026 · N441SK · Cessna 441 · Hydraulic System, Main
  > ON DESCENT LT AND RT "HYD LOW FLOW" ANNUNCIATORS START FLICKERING THEN WENT FULLY ON. EXTENDED LANDING GEAR BUT ONLY LT MAIN WENT DOWN AND LOCKED. BLEW THE LANDING GEAR BLOWDOWN BOTTLE, HEARD THE BOTTLE BLOW BUT HAD NO FURTHER DOWN AND LOCKED INDICATION. AFTER
- [SDR 2025FA0000003](https://openairdocs.org/sdr/2025FA0000003.md): Governor · faulted · Jan 3, 2025 · N441BW · Cessna 441 · Engine Controls
  > ON TAXI OUT, THE LT FUEL COMPUTER WENT OFF-LINE, THE PILOTS SELECTED BOTH FUEL COMPUTERS OFF AND PROCEEDED TO FLY IN MANUAL IAW THE MANUAL. WHILE APPLYING TAKE OFF POWER SOME SURGING WAS NOTICED ON THE LT ENGINE. ABORTED TAKE OFF. FOUND THE MONOPOLE MALFUCTION
- [SDR 2024FA0000621](https://openairdocs.org/sdr/2024FA0000621.md): Propeller · shutdown · Jul 22, 2024 · Cessna 441 · Propeller Assembly
  > PERFORMED INFLIGHT ENGINE SHUTDOWN BEFORE RELEASE TO SERVICE AS REQUIRED AFTER ENGINE HOT SECTION INSPECTION AND ENGINE INSTALLATION. AT INFLIGHT SHUTDOWN THE ENGINE SPOOLED DOWN AFTER TURNING OFF FUEL AS EXPECTED. HOWEVER, WHEN THE MANUAL FUEL CUTOFF/PROP F
- [SDR 2024F00098](https://openairdocs.org/sdr/2024F00098.md): Antenna · inflt separation · Mar 21, 2024 · N11MM · Cessna 441 · VHF Communications System
  > DURING CRUISE PHASE OF FLIGHT FROM SNP TO ANC PILOT FELT VIBRATION/BUFFETING AND SLOWED HIS AIRSPEED DOWN AND DESCENDED 2000-3000 FEET IN ALTITUDE THINKING MAYBE HE HIT TURBULENCE. ON DESCENT INTO ANC. PILOT TRIED LISTENING TO #2 COM WITH NO RESULTS AND SWITCH
- [SDR 2023FA0000357](https://openairdocs.org/sdr/2023FA0000357.md): Bearing Race · galled · Jul 7, 2023 · N441HS · Cessna 441 · Engine (Turbine/Turboprop)
  > TORQUE SENSOR BEARING INNER RACE GALLED [PN: 70100168-1, SN: 19-151725-05170, TSN: 423.1]. RESULTED IN BAD SOAP, 5 SHINY M50 PLATELETS UP TO 0.2MM REPORTED. ENGINE [TPE331-10N-512S, SN: P-77454, TSN: 6,889.1, CSN: 11,904, TSO: 2,424.0, CSO: 1,449].
- [SDR 3SVA2021F00069](https://openairdocs.org/sdr/3SVA2021F00069.md): Circuit Breaker · failed · Jul 3, 2021 · N11MM · Cessna 441 · Light System Wiring
  > DURING TAXI-OUT FROM BASE, CAPT. NOTED SMOKE EMITTING FROM LIGHT SWITCH AREA AT THE LOWER LH CONSOLE. THEY TAXIIED BACK HOME BASE UNEVENTFULLY AND HANDED OVER THE AIRCRAFT TO MAINTENANCE. IT WAS IMMEDIATELY APPARENT THAT THE RH STROBE LIGHT CIRCUIT BREAKER S
- [SDR 3SVA20210402001](https://openairdocs.org/sdr/3SVA20210402001.md): Connector · shorted · Apr 2, 2021 · N318AK · Cessna 441 · Engine Indicating System Wiring
  > RT ENGINE TQ, EGT, AND FF OSCILLATIONS. DECLARED EMERGENCY AND RETURNED TO BASE WITHOUT INCIDENT. MX FOUND CHAFFING WIRES AT EGT COMPENSATOR CONNECTOR. REPAIRED WIRING, PERFORMED GROUND RUNS FOR PERFORMANCE WITH NO DEFECTS AND RETURNED AIRCRAFT TO SERVICE.
- [SDR 3SVA20210303001](https://openairdocs.org/sdr/3SVA20210303001.md): Gcu · unknown · Feb 28, 2021 · N128EZ · Cessna 441 · DC Generating System
  > DURING A ROUTINE TRAINING FLIGHT THE LEFT ENGINE WAS SHUTDOWN PER AFM PROCEDURES. THE LEFT BUS CURRENT LIMITER FAILED OPEN AT SOME POINT, RESULTING IN LOSS OF LEFT BUS POWER AND THE INABILITY TO RESTART THE ENGINE DUE TO NO POWER ON THE LEFT BUS. THE CREW DE
- [SDR 3SVA2017013000001](https://openairdocs.org/sdr/3SVA2017013000001.md): Wire · shorted · Jan 28, 2017 · N441DK · Cessna 441 · Engine Indicating System Wiring
  > RT ENGINE TORQUE INDICATOR WENT TO REDLINE ON TAKEOFF CAUSING THE ENGINE COMPUTER TO REDUCE POWER BECAUSE IT SENSED AN OVER TORQUE SITUATION. THE INDICATION WAS FAULTY AND THERE WAS NOT AN OVER TORQUE ISSUE. INSPECTION OF THE WIRES AT THE TORQUE TRANSDUCER REV
- [SDR CA140818002](https://openairdocs.org/sdr/CA140818002.md): Transducer · erratic · Jun 4, 2014 · Cessna 441 · Engine BMEP/Torque Indicating
  > (CAN) ERRATIC TORQUE INDICATION DURING FLIGHT.
- [SDR 2013FA0000325](https://openairdocs.org/sdr/2013FA0000325.md): Engine · failed · Apr 28, 2013 · N6851X · Cessna 441 · Engine (Turbine/Turboprop)
  > RIGHT ENGINE EGT INCREASED. FIRE LIGHT ACTIVATED AND THEN PERFORMED EMERGENCY SHUTDOWN PROCEDURES.
- [SDR CA130425002](https://openairdocs.org/sdr/CA130425002.md): Line · split · Apr 23, 2013 · Cessna 441 · Hydraulic System, Main
  > (CAN) HYDRAULIC LINE HAS SMALL SPLIT, NOT VISIBLE TO NAKED EYE, BUT SHOWS UP WHEN UNDER PRESSURE.
- [SDR 2012FA0000771](https://openairdocs.org/sdr/2012FA0000771.md): Line · cracked · Nov 8, 2012 · N441BW · Cessna 441 · Hydraulic System, Main
  > PILOT NOTED HEAVY AMOUNTS OF HYD FLUID AROUND RT GEAR WELL AREA AND T/E OF RT INBD FLAP DURING HIS POST FLIGHT INSP. ACFT TECHS FOUND A HYDRAULIC LINE SPLIT IN A DRY BAY LOCATED JUST AFT OF RT ENG FIREWALL. HYD LINE APPEARED TO BE IN GOOD CONDITION WITH NO S
- [SDR 3SVA20111228001](https://openairdocs.org/sdr/3SVA20111228001.md): Door Seal · collapsed · Dec 28, 2011 · N102NA · Cessna 441 · Doors
  > DURING CLIMBOUT AIRCRAFT WOULD NOT PRESSURIZE. RETURNED TO BASE.
- [SDR CA110629005](https://openairdocs.org/sdr/CA110629005.md): Bellcrank · cracked · Jun 24, 2011 · Cessna 441 · Landing Gear Door Retract Section
  > FOUND CRACK IN BELLCRANK DURING CORROSION INSPECTION, REPLACED BELLCRANK WITH NEW.
- [SDR CA110419012](https://openairdocs.org/sdr/CA110419012.md): Line · cracked · Apr 19, 2011 · Cessna 441 · Hydraulic System, Main
  > (CAN) THIS HYDRAULIC PRESSURE LINE WHIICH IS LOCATED IN THE LT WHEEL WELL FAILED WHEN THE LANDING GEAR WAS RETRACTED FOR LANDING. THE FLIGHT CREW ACTIVATED THE "BLOW DOWN" BOTTLE TO RETRACT THE LANDING GEAR INTO THE LOCKED POSITION AND THE ACFT LANDING WITHOU
- [SDR CA101012002](https://openairdocs.org/sdr/CA101012002.md): Wire · shorted · Oct 10, 2010 · Cessna 441 · Engine Fuel System Wiring
  > ON RETURN FROM IT`S FLIGHT, CREW REPORTED THE RT AUX FUEL PUMP NOT WORKING AND THE RT LANDING LIGHT BLOWING THE BREAKER. DURING THE TROUBLESHOOTING OF THE RT AUX PUMP, IT WAS FOUND THAT AT THE INTERSECTION OF FS 212.00 AND WS 40.00 THE WIRES THAT RUN ALONG TH
- [SDR 2009FA0000182](https://openairdocs.org/sdr/2009FA0000182.md): Structure · cracked · Mar 6, 2009 · N505HC · Cessna 441 · Horizontal Stabilizer Miscellaneous Structure
  > DURING THE SID INSP, THE HORIZONTAL STABILIZER WAS REMOVED. VISUALLY DISCOVERED THE SHELF UNDER THE HORIZ STAB WAS CRACKED AT THE AFT END WHERE IT IS RIVETED TO THE AFT HORIZ STAB MOUNT BULKHEAD.
- [SDR CA081212004](https://openairdocs.org/sdr/CA081212004.md): Tire · defective · Dec 9, 2008 · Cessna 441 · Tire
  > (CAN) DEFECT IN SIDEWALL CAUSED SIGNIFCANT LOSS OF PRESSURE.
- [SDR CA080822015](https://openairdocs.org/sdr/CA080822015.md): Wire · shorted · Aug 22, 2008 · Cessna 441 · Propeller/Rotor Anti-Ice/De-Ice System
  > (CAN) AFTER LANDING, THE ACFT EXPERIENCED A SMALL AMOUNT OF SMOKE IN THE COCKPIT, FOLLOWED IMMEDIATELY BY THE SWITCH CIRCUIT BREAKER POPPING. THE AMMETER FOR THE PROP DE-ICE WAS PEGGED TO THE FULL RT, ONCE THE SYSTEM WAS SWITCHED OFF THE METER STILL INDICATED

## 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 = 'TPE33110N'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/garrett-tpe331-10n/reports

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