# Service difficulty reports: U/A Canada PT6A-135

A list on [U/A Canada PT6A-135](https://openairdocs.org/engine/u-a-canada-pt6a-135.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 3 · 128 reports

- [SDR 2025FA0000591](https://openairdocs.org/sdr/2025FA0000591.md): Reservoir · leaking · Aug 27, 2025 · N632CB · Piper PA31T2 · Hydraulic Reservoir, Main
  > AIRCRAFT DEPARTED KSHR AT APPROXIMATELY 0812 ENROUTE KBIL. ON APPROACH INTO KBIL, LANDING GEAR WAS SELECTED DOWN BUT FAILED TO FULLY EXTEND. THE PILOT FOLLOWED EMERGENCY LANDING GEAR EXTENSION PROCEDURES AND GOT ALL THREE LANDING GEAR DOWN AND LOCKED. THE AIRC
- [SDR G1IA20220707027](https://openairdocs.org/sdr/G1IA20220707027.md): Powerpack · weak · Jul 7, 2022 · N734CB · Beech C90A · Hydraulic System, Main
  > WHILE SETTING UP FOR LANDING IN KRQE, GEAR HANDLE WAS PLACED DOWN. THE GEAR NEVER LOCKED IN DOWN POSITION. I ATTEMPTED TO PUT THE GEAR BACK UP AND THE GEAR DID NOT RETURN TO THE UP POSITION. THE GEAR UNSAFE RED LIGHTS REMAINED ON. I PLACED THE GEAR HANDLE BACK
- [SDR 2018FA0000388](https://openairdocs.org/sdr/2018FA0000388.md): Fuel Line · cracked · Jan 19, 2018 · N88B · Piper PA31T2 · Fuel Controlling System
  > UPON ENGINE SHUT DOWN IT WAS NOTED FUEL LEAKING FROM THE RIGHT ENGINE. ENGINE WAS UN-COWLED, GROUND RUN REVEALED A FUEL LEAK FROM FCU HIGH PRESSURE FUEL LINE P/N 3011849. LINE WAS REPLACED WITH NO FURTHER FUEL LEAKS NOTED. THE LEAKING FUEL LINE WAS INSPECTED A
- [SDR 2016FA0000235](https://openairdocs.org/sdr/2016FA0000235.md): Pinion · cracked · May 12, 2016 · Beech F90 · Landing Gear Actuator
  > THE MLG ACTUATOR PINION GEAR INSPECTION PROCESS FOR F90, 99, 100 AND 200 SERIES ACFT HAS GENERATED A LARGE NR OF PINION GEARS WITH CRACK INDICATIONS BETWEEN THE TEETH. MAGNETIZING THE PINION GEAR LENGTHWISE WITH A SINGLE SHOT OF DC CURRENT AND A HAND HELD YOK
- [SDR CA160119023](https://openairdocs.org/sdr/CA160119023.md): Engine · shutdown · Jan 5, 2016 · Engine (Turbine/Turboprop)
  > (CAN) CREW REPORTED GENERATOR FAILURE, AIRFRAME PART, DURING FLIGHT. IT WAS FIXED BY RESETTING THE CIRCUIT BREAKER. AFTER LANDING, WHILE TAXING, THE LT ENGINE SHUTDOWN WITH NO WARNING LIGHT OR OTHER INDICATIONS. THE CREW NOTICED THE TORQUE AND OIL PRESSURE I
- [SDR CA151028004](https://openairdocs.org/sdr/CA151028004.md): Windshield · cracked · Oct 28, 2015 · Beech F90 · Flight Compartment Windows
  > (CAN) ENROUTE THE INSIDE PANEL OF RT WINDSHIELD CRACKED. CREW DECIDED TO RETURN TO THE AIRPORT FOR MAINTENANCE. ACFT LANDED WITHOUT INCIDENT. WINDSHIELD REPLACED.
- [SDR CA150507005](https://openairdocs.org/sdr/CA150507005.md): Engine · power loss · Apr 13, 2015 · Beech F90 · Engine (Turbine/Turboprop)
  > (CAN) ENGINES ARE NG LIMITED & WILL NOT PRODUCE MAXIMUM TORQUE OR ITT. TROUBLESHOOTING IS ONGOING.
- [SDR CA130905012](https://openairdocs.org/sdr/CA130905012.md): Transmitter · inoperative · Sep 2, 2013 · Beech F90 · Fuel Flow Indicating
  > (CAN) REPORT LEFT FUEL FLOW UNSERVICEABLE. FUEL FLOW TRANSMITTER, REMOVED TSO:2053.4, CSO:1538, ON CONDITION PART, PREVIOUS O/H SEPT 2004. O/H REPLACEMENT TRANSMITTER INSTALLED AND SYS GROUND TESTED SERVICEABLE.
- [SDR CA130904017](https://openairdocs.org/sdr/CA130904017.md): Tire · out of balance · Aug 30, 2013 · Beech F90 · Tire
  > (CAN) NOSE WHEEL ASSY REMOVED AND BALANCE CHECKED, FOUND TO REQUIRE MORE THAN 1.5OZ TO REBALANCE. DISASSEMBLED WHEEL AND FOUND 1.75 OZ BALANCE PATCH LOOSE IN TIRE. WHEEL RE-ASSEMBLED WITH NEW TIRE, PN:265F86-8 AND ASSY BALANCED.
- [SDR CA130626002](https://openairdocs.org/sdr/CA130626002.md): Bellows · distorted · May 25, 2013 · Dhav DHC3 · Fuel Control/Turbine Engines
  > (CAN) ENGINE WOULD NOT DEVELOP POWER FROM IDLE. FCU REPAIRED BY REPAIR FACILITY. FCU REINSTALLED AFTER REPAIR, MAINTENANCE UNABLE TO ADJUST IDLE, MIN FLOW. ENGINE WOULD NOT DEVELOP TAKEOFF POWER. UNIT RETURNED AND DISTORTED BELLOWS ASSY FOUND.
- [SDR CA130626003](https://openairdocs.org/sdr/CA130626003.md): Fitting · cracked · May 1, 2013 · Dhav DHC3 · Wheel/Ski/Float
  > (CAN) FLOAT DECK FITTING INSPECTED AND FOUND CRACKED. UNIT REPLACED WITH NEW FITTING. FLEET INSPECTION FOUND ONE OTHER 55-S-618 CRACKED OUT OF A TOTAL OF SIX FITTINGS. ALSO FITTING FOUND CRACKED ONCE REMOVED FROM FITTING.
- [SDR CA121221013](https://openairdocs.org/sdr/CA121221013.md): Screen · split · Dec 21, 2012 · Beech F90 · Turbine Engine Oil System
  > (CAN) ON INSPECTION OF OIL FILTER IT WAS FOUND THAT THE CENTER BYPASS SCREEN HAD SPLIT OPEN ON THE END WHERE IT WAS CRIMPED TOGETHOR ALLOWING FOR FULL OIL FLOW THROUGH THE FILTER CENTER. THE FILTER HAD NO CONTAMINATION AND NO ABNORMAL OIL PRESSURE INDICATIONS
- [SDR CA121203014](https://openairdocs.org/sdr/CA121203014.md): Mount · worn · Nov 12, 2012 · Piper PA31T · Propeller Spinner Section
  > (CAN) THE SPINNER MOUNTING PLATE BOLTS WERE ALL LOOSE, FINGER TIGHT AND SHOULD HAVE BEEN TORQUED. THIS CAUSED MOVEMENT IN THE BULKHEAD WHICH ELONGATED THE HOLES IN THE SPINNER MOUNTING PLATES. THERE IS A SB CONCERNING THE DRILLING OF CLAMP COUNTERWEIGHT DOWE
- [SDR CA120831002](https://openairdocs.org/sdr/CA120831002.md): Fuel Control · failed · Aug 29, 2012 · Dhav DHC3 · Fuel Control/Turbine Engines
  > (CAN) AIRCRAFT APPLIED POWER FOR TAKEOFF AND ENGINE WOULD NOT ACCELERATE PAST IDLE. FCU REPLACED WITH SERVICEABLE UNIT AND GROUND TESTED SERVICEABLE. NOTE FURTHER PROBLEMS NOTED.
- [SDR CA120717005](https://openairdocs.org/sdr/CA120717005.md): Turbine Blades · fractured · Jul 11, 2012 · Emb EMB120 · Turbine Section
  > (CAN) AFTER T/O, THE PILOT NOTICED A LOSS OF POWER ON NR 2 ENGINE. SECURED THE ENGINE AND RETURNED TO THE POINT ORIGIN WHERE AN UNEVENTFUL SINGLE ENGINE LANDING WAS PERFORMED. PRELIMINARY INSPECTION REVEALED A POSSIBLE TURBINE BLADE FRACTURE WITH PROPELLER SEI
- [SDR CA120706004](https://openairdocs.org/sdr/CA120706004.md): Stator · cracked · Jun 1, 2012 · Beech F90 · Turbine Section
  > (CAN) WHILE TROUBLESHOOTING ENGINE LIMITATION, SEVERAL GROUND RUNS WERE CARRIED OUT AND DATA WAS SENT. RECOMMENDED TO REMOVE POWER TURBINE STATOR VANE FOR CALIBRATION. FOUND VANE CRACKED, REPLACED WITH VANE, PN 3024862CL12.7, SN 55EH.
- [SDR CA120620004](https://openairdocs.org/sdr/CA120620004.md): Circuit Breaker · burned · May 31, 2012 · Dhav DHC3 · Electrical Power System Wiring
  > (CAN) CIRCUIT BREAKER FOUND BURNT. NEW CB INSTALLED & SYS CHECKED SERVICEABLE.
- [SDR CA120523004](https://openairdocs.org/sdr/CA120523004.md): Power Lever · malfunctioned · May 4, 2012 · Power Lever
  > (CAN) DURING TAXI, THE PILOT NOTICED THE ACFT WAS VEERING LT WITH THE ENGINE NOT RESPONDING TO THROTTLE INPUT. DURING SUBSEQUENT TROUBLESHOOTING, WHEN THE POWER LEVER WAS ADVANCED, THE ENGINE POWERED UP NORMALLY BUT WHEN IT WAS RETARDED, THE ENGINE FLAMED OU
- [SDR CA120620002](https://openairdocs.org/sdr/CA120620002.md): Inverter · failed · Apr 20, 2012 · Dhav DHC3 · AC Inverter
  > (CAN) NO TORQUE INDICATION. FOUND THAT ACFT INVERTER FOR TORQUE GAUGE FAILED. UNIT R & R WITH NEW UNIT & CHECKED SERVICEABLE.
- [SDR HDNA2012F00009](https://openairdocs.org/sdr/HDNA2012F00009.md): Cap · misinstalled · Nov 15, 2011 · N416P · Beech F90 · Turbine Engine Oil System
  > DURING CRUISE AT 13,000 FT, PILOT NOTICED NR 1 ENGINE TORQUE INDICATOR FLUCTUATING. NOTICED NR1 OIL PRESSURE INDICATION DROPPED. PULLED BACK POWER ON ENGINE AND SHUTDOWN NR 1 ENGINE. DECLARED AN EMERGENCYAND COMPLETED A SINGLE ENGINE LANDING WITHOUT INCID
- [SDR CA110817003](https://openairdocs.org/sdr/CA110817003.md): Hinge Bracket · corroded · Aug 16, 2011 · Beech F90 · Rudder Structure
  > (CAN) UPON PHASE II INSPECTION, MECHANICS FOUND THE RUDDER MID BRACKET CORRODED. BRACKET HAS BEEN REPLACED.
- [SDR 2011FA0000339](https://openairdocs.org/sdr/2011FA0000339.md): Fuel Nozzle · leaking · Apr 11, 2011 · Fuel Injector Nozzle
  > NOZZEL TIP LEAKING BETWEEN ADAPTOR AND NOZZLE TIP AT GASKET, LEAKAGE CAUSED FAILURE OF NR 2 BEARING COVER, VANE RING, LED, ALSO CAUSED NR 2 BEARING COVER MOUNTING FLANGE TO MELT. CT DISK FIN TREES CRACKED, CAUSE BLADES TO WALK. SUSPECT NOZZLE LEAKAGE TEST WA
- [SDR CA100813010](https://openairdocs.org/sdr/CA100813010.md): Turbine Blades · failed · Aug 12, 2010 · Beech F90 · Turbine Section
  > RT PT6A-135 ENGINE, SN PC-E92105 WAS REMOVED SUBSEQUENT TO INFLIGHT SHUTDOWN INCIDENCE. THE CUSTOMER REPORTED "THE ENGINE LOST AT TAKEOFF AT 3000 FT AT CLIMB POWER SETTING. NO PERFORMANCE INDICATION REVEALING PROBLEM PRIOR TO ENGINE FAILURE". DURING DISMANTLE
- [SDR CA100805009](https://openairdocs.org/sdr/CA100805009.md): Oil Filter · unserviceable · May 14, 2010 · Dhav DHC3 · Turbine Engine Oil System
  > INNER CONE (SCREEN) SEAMS ARE BECOMING UNGLUED. IF SCREEN BECOMES SEPARATED FROM FILTER BODY, THE POTENTIAL IS THERE FOR IT TO GO THROUGH THE ENGINE SYS.
- [SDR CA100222006](https://openairdocs.org/sdr/CA100222006.md): Fuel Sys · contaminated · Feb 16, 2010 · Piper PA31T2 · Aircraft Fuel Distribution System
  > (CAN) BOTH ENGINES WERE STARTED NORMALLY. UPON POWER APPLICATION FOR TAXI, THE LT ENGINE WOULD NOT RESPOND TO THROTTLE/POWER LEVER MOVEMENTS AND REMAINED AT IDLE. THE ACFT ENGINES WERE SHUTDOWN. MX FOUND CONTAMINATION IN THE AIRFRAME FUEL FILTERS AND TANKS. L
- [SDR CA091223002](https://openairdocs.org/sdr/CA091223002.md): Screen · detached · Dec 21, 2009 · Dhav DHC3 · Reciprocating Engine Oil System
  > (CAN) INNER CONE (SCREEN) SCANS ARE BECOMING UNGLUED. (TC NR 20091223002)
- [SDR CA091211004](https://openairdocs.org/sdr/CA091211004.md): Bowl · cracked · Dec 9, 2009 · Piper PA31T2 · Hydraulic Filter, Main
  > (CAN) ON FINAL, LANDING GEAR WAS SELECTED DOWN BUT NOTHING HAPPENED - GEAR WOULD NOT EXTEND. GEAR HANDLE WAS CYCLED UP & DOWN WITH NO SUCCESS. HAND PUMP WAS USED TO SUCCESSFULLY EXTEND THE GEAR. LANDING WAS UNEVENTFUL. MX CREW FOUND THE LT ENG HYD FILTER BO
- [SDR CA091118015](https://openairdocs.org/sdr/CA091118015.md): Housing · cracked · Nov 17, 2009 · Piper PA31T2 · Main Landing Gear Strut/Axle/Truck
  > (CAN) DURING THE INSPECTION, WHILE GREASING NOSE LANDING GEAR, MAINTENANCE NOTICED BLISTERING UNDER THE PAINT. MAINTENANCE REMOVED THE BLISTERS, CLEANED-UP THE GREASE AND NOTICED A HAIRLINE FRACTURE ON GEAR STRUT HOUSING ASSY. (TC NR 20091118015)
- [SDR 2009FA0000673](https://openairdocs.org/sdr/2009FA0000673.md): Filter · mismanufactured · Aug 6, 2009 · Turbine Engine Oil System
  > RECEIVING INSP ON A NEW OIL FILTER PN 3059257-01, LOT NR 091640 IT WAS DISCOVERED THE INTERNAL CONE SHAPED WIRE MESH FILTER SCREEN WAS MISSING FROM THE FILTER. RECOMMEND VISUAL INSP OF ALL FILTERS TO INSURE INTERNAL WIRE MESH FILTER SCREEN IS INSTALLED PRIOR
- [SDR CA090203001](https://openairdocs.org/sdr/CA090203001.md): Hinge · cracked · Feb 2, 2009 · Dhav DHC3 · Horizontal Stabilizer Structure
  > ON INSPECTION FOUND LT AND RT TAILPLANE HINGE ASSEMBLIES CRACKED THROUGH RIVIT HOLE ON ATTACHMENT LT P/N C3FS473-7 AND RT P/N C3FS472-7.
- [SDR CA090128003](https://openairdocs.org/sdr/CA090128003.md): Tube · punctured · Jan 23, 2009 · Piper PA31T2 · Tire Tube
  > TIRE WAS REPORTED FLAT UPON PRE-FLIGHT INSPECTION. TIRE AND TUBE WERE INSPECTED AND THE TUBE REVEALED A PUNCTURE, CAUSING THE DEFLATION.
- [SDR CA090202005](https://openairdocs.org/sdr/CA090202005.md): Tube · punctured · Jan 23, 2009 · Piper PA31T2 · Tire Tube
  > THE LT MAIN TIRE WAS REPORTED LOW BY OUR MAINTENANCE CREW. MAINTENANCE PERSONNEL IMMEDIATELY REPLACED THE WHEEL ASSY AS PREVENTATIVE MAINTENANCE, SINCE 3 TIRE FAILURE INCIDENTS OCCURRED THIS PAST MONTH. THE TIRE AND TUBE WERE INSPECTED AND THE TUBE REVEALED
- [SDR CA090128002](https://openairdocs.org/sdr/CA090128002.md): Tube · destroyed · Jan 17, 2009 · Piper PA31T2 · Tire Tube
  > THE TIRE WAS DESTROYED ON TOUCHDOWN. UNABLE TO EVALUATE TIRE AND TUBE CONDITION.
- [SDR CA090128001](https://openairdocs.org/sdr/CA090128001.md): Tube · punctured · Jan 16, 2009 · Piper PA31T2 · Tire Tube
  > TIRE LOSING AIR AFTER SHUTDOWN. THE TIRE AND TUBE WERE INSPECTED AND NUMEROUS PIN HOLES WERE FOUND ON THE TUBE`S OUTER CIRCUMFERENCE, CAUSING THE DEFLATION.
- [SDR CA081020010](https://openairdocs.org/sdr/CA081020010.md): Fitting · failed · Oct 15, 2008 · Piper PA31T2 · Engine Oil Indicating System
  > (CAN) DURING TAXIING OF THE ACFT, THE CREW NOTED THE ANNUNCIATOR FOR OIL PRESSURE ON THE LT ENGINE CAME ON. THEY SHUTDOWN THE LT ENGINE AND TAXIED THE ACFT USING 1 ENGINE BACK TO THE HANGER. AFTER INSPECTION, IT WAS FOUND THAT THE HOSE ASSEMBLY FROM THE ENGINE
- [SDR CA081027002](https://openairdocs.org/sdr/CA081027002.md): Starter Gen · worn · Sep 10, 2008 · Dhav DHC3 · Starter-Generator
  > (CAN) STARTER GEN HAD LONG LIFE BRUSHES INSTALLED AT OVERHAUL. BRUSHES ONLY LASTED 611.5 HRS WHEN THEY SHOULD HAVE WENT THEIR 1200 HOURS. ONE BRUSH WAS RT AT THE LIMIT WHERE THE OTHER BRUSH WAS ABOUT 40 PERCENT WORN ONLY.
- [SDR QRE2008F00000](https://openairdocs.org/sdr/QRE2008F00000.md): Rod End · binding · Jul 10, 2008 · N425WD · Cessna 425 · Power Lever
  > THE PILOT MENTIONED UPON LENDING THE LT ENGINE NG DID NOT GO ALL THE WAY BACK TO IDLE SPEED, BUT STAYED AT 80 PERCENT. UPON EXAMINATION OF THE FUEL CONTROL LINKAGE, IT WAS NOTED THAT THE FUEL CONTROL ARM WAS NOT RESTING ON THE IDLE STOP, BUT WAS UP ABOUT 1 IN
- [SDR CA080204005](https://openairdocs.org/sdr/CA080204005.md): Turbine Wheel · corroded · Feb 4, 2008 · Turbine Section
  > (CAN) THE CT DISK WAS FOUND WITH (4) VISUAL CRACKS AT (3) OF THE FIRTREES. THE CRACKS ARE LOCATED AT THE EDGE OF THE TOP SERRATION RADIUS WITH THE FIRTREE FACE. THE CRACKS ARE BELIEVED TO BE RELATED TO CORROSION, THEY ARE QUITE OPEN WITH SIGN OF OXIDATION. CRA
- [SDR 2007FA0000853](https://openairdocs.org/sdr/2007FA0000853.md): Flange · cracked · Sep 20, 2007 · N90XS · Beech E90 · Engine Collector/Tailpipe/Nozzle
  > (2) NEW ENGINES WERE INSTALLED IAW MFG MODIFICATIONS, WITH 938.0 HRS SINCE NEW. AIRCRAFT WAS IN FOR A PHASE INSPECTION AND FOUND 3 OUT OF L1 EXHAUST FLANGES ON THE ENGINE CRACKED. ACCORDING TO THE MFG PARTS MANUAL, EXHAUST STIFFENERS ARE NOT USED ON THIS SN
- [SDR 2007FA0000778](https://openairdocs.org/sdr/2007FA0000778.md): Line · cracked · Sep 6, 2007 · N50AW · Beech F90 · Aircraft Fuel Distribution System
  > FUEL TUBE CRACKED AT BACKSIDE OF B-NUT SLEEVE LOCATION, CAUSING FUEL TO LEAK UNDER PRESSURE INTO ENGINE NACELLE AREA FORWARD OF FIREWALL. TUBE FAILED IN FLIGHT CAUSING INITIAL CHANGES IN FUEL FLOW INDICATIONS TO BE NOTICED.
- [SDR 2007FA0000747](https://openairdocs.org/sdr/2007FA0000747.md): Tube · cracked · Aug 17, 2007 · N50AW · Beech F90 · Engine Fuel Distribution
  > FUEL LEAK NOTED ON SHUTDOWN OF LT ENGINE. FUEL TUBE P/N 3011849 CRACKED AT CONNECTION TO START CONTROL UNIT.
- [SDR CA070803006](https://openairdocs.org/sdr/CA070803006.md): Tire · delaminated · Aug 3, 2007 · Raythn C90GT · Tire
  > (CAN) VIBRATION REPORTED ON TAKEOFF AND LANDING STARTING/ENDING AT 60-70 KNOTS, VIBRATION INCREASED AT HIGH SPEEDS ON GROUND AND DISAPPEARED AFTER LANDING GEAR WAS RETRACTED. LT AND RT MAIN WHEEL TIRE BALANCE PATCHES WERE FOUND DELAMINATED AND FLOATING INSIDE
- [SDR CA070803009](https://openairdocs.org/sdr/CA070803009.md): Tire · out of round · Aug 3, 2007 · Raythn C90GT · Tire
  > (CAN) NOSE WHEEL SHIMMY TIRE PN 076-367-0 SN 4190W00091 FOUND OUT OF ROUND.5 INCH. TIRE REPLACED AND REBALANCED. NOSE WHEEL STEERING DAMAGE CAUSED BY SHIMMY REPAIRED AS REQUIRED ALL WORN BOLTS, BUSHINGS, BEARINGS AND NOSE STEERING IDLER ASSY. REPLACED NEW.
- [SDR Y4MR200700521](https://openairdocs.org/sdr/Y4MR200700521.md): Engine · making metal · May 21, 2007 · N89CA · Beech F90 · Engine (Turbine/Turboprop)
  > DURING CRUISE, RT ENGINE CHIP DETECTOR ILLUMINATED. OTHER RT ENGINE INDICATIONS WERE MONITORED CLOSELY FOR ANY SIGN OF MECHANICAL PROBLEM. NO OTHER INDICATIONS THAT WOULD SUGGEST MECHANICAL PROBLEMS WERE NOTED AT THAT TIME. THE CHIP LIGHT WENT OUT WITHIN A
- [SDR IG0R200743437](https://openairdocs.org/sdr/IG0R200743437.md): Bellows · failed · May 8, 2007 · Fuel Control/Reciprocating Engines
  > THE FUEL CONTROL (FCU) P/N 3244777-4-3-2, S/N A59386 DIRECTED THE ENGINE TO MIN FLOW SHORTLY AFTER LANDING WITHOUT ANY FURTHER POWER LEVER RESPONSE. THE CONTROL TSO IS 92.8. THIS CONTROL WAS LAST SERVICED BY INTERNATIONAL GOVERNOR SERVICES (IGS) IN NOV 2006.
- [SDR CA070514034](https://openairdocs.org/sdr/CA070514034.md): Fcu · faulty · Mar 26, 2007 · Piper PA31T · Fuel Control/Turbine Engines
  > (CAN) DURING CLIMB, ENGINE POWER INCREASED UNCOMMANDED, RESULTING IN A TORQUE EXCEEDANCE. THE ENGINE WAS SHUTDOWN IN FLIGHT. SUBSEQUENT INSPECTION REVEALED A FAULTY FUEL CONTROL UNIT. (TC NR 20070514034)
- [SDR 2007FA0000258](https://openairdocs.org/sdr/2007FA0000258.md): Bearing · seized · Mar 1, 2007 · N19RK · Beech F90 · Main Landing Gear
  > PERFORMING A ROUTINE 6 YEAR LANDING GEAR OVERHAUL, THE LT LANDING GEAR GEARBOX-ACTUATOR TORQUE TUBE HAD A SEIZED MAIN SUPPORT BEARING. THIS MADE THE TORQUE TUBE EXTREMELY HARD TO TURN. THE BEARING WAS FOUND TO BE RUSTED, AND SEIZED. BEARING WAS REPLACED WITH N
- [SDR 2007FA0000215](https://openairdocs.org/sdr/2007FA0000215.md): Bearing · seized · Mar 1, 2007 · N19RK · Beech F90 · Landing Gear Retraction/Extension System
  > PERFORMING A ROUTINE 6 YEAR LANDING GEAR OVERHAUL, THE LT LANDING GEAR GEARBOX-ACTUATOR TORQUE TUBE HAD A SEIZED MAIN SUPPORT BEARING. THIS MADE THE TORQUE TUBE EXTREMELY HARD TO TURN. THE BEARING WAS FOUND TO BE RUSTED, AND SEIZED. BEARING WAS REPLACED WITH N
- [SDR 2006FA0000914](https://openairdocs.org/sdr/2006FA0000914.md): Transfer Tube · chafed · Aug 21, 2006 · N234CW · Beech F90 · Turbine Engine Oil System
  > IN FLIGHT NOTICED TORQUE METER WAS UNSTABLE, CHECKED OIL PRESSURE AND SAW IT DROPPING. REDUCED POWER TO IDLE OIL PRESSURE WAS IN YELLOW RANGE. SHUTDOWN ENGINE AND LANDED. REMOVED FRONT COWLING AND FOUND INLET DEICE TUBE HAD RUBBED A HOLE IN THE OIL PRESSURE
- [SDR CA060705002](https://openairdocs.org/sdr/CA060705002.md): Compressor · bird ingestion · Jul 5, 2006 · Turbine Engine Compressor Section
  > (CAN) DAMAGE TO ENGINE COMPRESSOR CAUSED BY BIRDSTRIKE. COMPRESSOR DAMAGE WAS REPAIRED AND ENGINE RETURNED TO SERVICE. (TC# 20060705002)

Next page: https://openairdocs.org/engine/u-a-canada-pt6a-135/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 = 'PT6A135'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/u-a-canada-pt6a-135/reports

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