Allison 250-C20

Service difficulty reports · 945

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "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 = '250C20'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR CA120727009Governor · slow(CAN) PILOT REPORTED THAT GOVENOR WAS SLOW TO RESPOND. GOVENOR REPLACED.Jul 12, 2012 · Bell 206B · Turbine GovernorSDR CA120727010Friction Pad · worn(CAN) DURING 100/300 HR INSPECTION OF THE HELICOPTER THE STARTER GENERATOR FRICTION PADS WERE FOUND TO BE WORN. STARTER GENERATOR REPLACED.Jun 30, 2012 · Bell 206B · Starter-GeneratorSDR 2012FA0000459Fuel Cell · contaminatedRECEIVING FUEL CELLS FROM MFG WITH CONTAMINATES REMAINING IN FUEL CELL.Jun 7, 2012 · N67675 · Bell 206B · Fuel StorageSDR CA110908003Compressor · failed(CAN) THE OPERATOR HAD A COMPLAINT OF LOW POWER. UPON DISMANTLE OF THE COMPRESSOR THE FOLLOWING CONDITIONS WERE FOUND. COMPRESSOR CASE CORRODED, MISSING PLASTIC AND CRACKED PLASTIC. 1ST STAGE COMPRESSOR WHEEL, CHAMFER BLEND BEYOND LIMITS. 2ND/3RD STAGE CSep 8, 2011 · Turbine Engine Compressor SectionSDR 2011FA0000529Skin · crackedDURING INSPECTION, A LARGE CRACK WAS FOUND ON UPPER VERTICAL FIN NEAR THE FWD ATTACHMENT POINT. CRACK IS LOCATION ON L/E EXTENDING FROM RT SIDE TO LT SIDE OF ACFT IN THE AREA ABOVE THE FWD REINFORCEMENT. TOTAL LENGTH OF CRACK IS 8 INCHES. COULD BE IMPROPER Aug 4, 2011 · N912KY · Aerosp AS355F2 · Rotorcraft Tail BoomSDR 2011FA0000530Blade · crackedA CRACK WAS FOUND ON 1 OF THE MAIN ROTOR BLADES L/E ABRASION STRIP DURING A ROUTINE 30 DAY/50 HR INSP. CRACK IS 65MM IN LENGTH AND LOCATED 6` 4" FROM BLADE ROOT, TOP SECTION OF L/E. REMOVED BLADE FOR REPAIR BY MFG CERTIFIED BLADE REPAIR SHOP. `Aug 2, 2011 · N132H · Agusta A109E · Main Rotor BladesSDR CA110803025Fcu · failedACFT EXPERIENCED COMPRESSOR STALLING. FCU REPLACED.Jul 27, 2011 · Bell 206B · Fuel Control/Turbine EnginesSDR CA110719002Turbine · making metal(CAN) ENGINE CHIP WARNING LIGHT CAME ON DURING FINAL APPROACH. TURBINE ASSY REPLACED.Jul 3, 2011 · Bell 206B · Turbine SectionSDR CA110719011Governor · malfunctioned(CAN) RPM DROOP NOT RECOVERING. GOVENOR REPLACED.Jun 25, 2011 · Bell 206B · Turbine GovernorSDR CA110530007Fuel Nozzle · wornSLOW STARTING, ENGINE HANGING AT 48-50 PERCENT N1. FUEL NOZZLE REPLACED.May 18, 2011 · Bell 206B · Fuel Injector NozzleSDR CA100528001Governor · failed(CAN) GOVERNOR WOULD NOT STABILIZE THE RPM AT 1005, PT GOVERNOR REPLACED.May 17, 2011 · Bell 206B · Turbine GovernorSDR CA100512005Bearing · failed(CAN) DURING PIPELINE PATROL LOW LEVEL OPERATIONS: AN OVERSPEED WAS EXPERIENCED UP TO 107-110 PERCENT. GOVERNOR WAS BEEPED DOWN TO CONTROL OVERSPEED AND THROTTLE HAD TO BE REDUCED AS WELL TO CONTROL ENGINE RPM. ACFT WAS LANDED SUCCESSFULLY AT THE NEXT AVAILAMay 10, 2011 · Bell 206B · Fuel Control/Reciprocating EnginesSDR CA110509012Blade · crackedDURING AN AFTER LAST FLIGHT CHECK, A CRACK WAS FOUND ON THE TAIL ROTOR BLADE RUNNING PARALLEL WITH THE T/E, ADJACENT TO THE CHORDWISE BALANCE WEIGHT.May 6, 2011 · Bell 206B · Main Rotor BladesSDR CA110503008Bulkhead · cracked2 CRACKS FOUND ON TAILBOOM BULKHEAD. CRACKS GENERATED FROM THE HOLES FOR T/R GEARBOX STUDS, FOUND DURING TAIL ROTOR GEAR BOX ATTACHMENT CHECK ON 300 HOUR AIRFRAME INSPECTION.May 3, 2011 · Bell 206B · Rotorcraft Tail BoomSDR 2011F00087Oil Filter · debondedSCAVENGE OIL FILTER PN P-1050, REPLACES PN 038088-08, END CAP COMING OFF OF THE FILTER DURING REMOVAL AND STAYING IN THE FILTER HEAD ASSY. THE CHANCES OF INSTALLING A NEW FILTER AND HAVING THE OLD END CAP STILL INSTALLED IS POSSIBLE.Apr 13, 2011 · N206NU · Bell 206B3 · Turbine Engine Oil SystemSDR ALGAR1281151434Hanger Assy · mismanufactured3EA HANGER SUPPORTS PN 206-033-412-123S, RADIUS OUTER EDGES RECEIVED NEW FROM MFG DEFORMED AND WILL NOT FIT IN FIXTURE.Jan 28, 2011 · N206DB · Bell 206L4 · Rotorcraft Tail BoomSDR 2011FA0000084Engine · making metalENGINE CHIP LIGHT ILLUMINATED DURING FLIGHT. ENG OIL SYS REVEALED METAL CONTAMINATION BEYOND SERVICEABLE LIMITS. COMPRESSOR, TURBINE, AND GEARBOX MODULES WERE REPLACED WITH SERVICEABLE UNITS.Jan 12, 2011 · N196P · Bell 206B · Engine (Turbine/Turboprop)SDR MF02010F00000Fuel Filter · brokenTHE THREADED PORTION INSIDE THE FILTER HEAD CASTING, WHERE THE THROUGH BOLT SECURES THE FUEL BOWL TO THE HEAD, BROKE ALLOWING THE FUEL BOWL CANISTER TO DROP AWAY FROM THE HEAD ASSY. THIS WAS DISCOVERED ON A PREFLIGHT INSPECTION.Dec 13, 2010 · N2751A · Bell 206B · Fuel Controlling SystemSDR MFO2011F00000Fuel Filter · brokenTHE THREADED PORTION INSIDE THE FILTER HEAD CASTING, WHERE THE THROUGH BOLT SECURES THE FUEL BOWL TO THE HEAD, BROKE ALLOWING THE FUEL BOWL CANISTER TO DROP AWAY FROM THE HEAD ASSY. THIS WAS DISCOVERED ON A PREFLIGHT INSP.Dec 13, 2010 · N2751A · Bell 206B · Engine Fuel DistributionSDR CA101220006Altimeter · failed(CAN) PILOT NOTED THAT ALTIMETER READING MORE THAN 100 FT BELOW FIELD ELEVATION. MAINTENANCE CONFIRMED FAULT. ALTIMETER REPLACED.Dec 9, 2010 · Bell 206B · Altimeter, Barometric/EncoderSDR YTRA10341Spindle · crackedDURING ROUTINE O/H OF TRANSMISISON ASSY PN 206-040-002-115, SN A189, FOUND SPINDLE CRACKED.Dec 8, 2010 · N239RA · Bell 206B3 · Main Rotor GearboxSDR CA101203001Governor · unserviceableFOLLOWING PREFLIGHT CHECK, PILOT WAS PERFORMING ENG START PROCEDURE, AND FOUND LINEAR ACTUATOR "BEEPER" WAS INEFFECTIVE AT VARYING ENGINE RPM, BUT WAS VISUALLY CONFIRMED AS ACTUATING THE GOVERNOR. IT WAS ALSO OBSERVED THE N2/NR WAS AT 69 PERCENT WHILE AT ACFTDec 1, 2010 · Bell 206B · Turbine GovernorSDR EOPA110810N847ALFrame · cracked1.5 INCH CRACK IN THE FRAME LOCATED AT STATION 231.5.Nov 8, 2010 · N847AL · Bell 407 · Fuselage Main, FrameSDR CA101112004Clutch · failed(CAN) AFTER SHUTDOWN, PILOT DID NOT SEE A NEEDLE SPLIT BETWEEN ROTOR SPEED, AND N2, BUT RATHER THE NEEDLES STAYED MARRIED. ENGINEER DISPATCHED TO AIRCRAFT WHO SPUN THE BLADES FORWARD AND OBSERVED THAT THE POWER TURBINE WAS ALSO ROTATING WHEN VIEWED THROUGH THNov 8, 2010 · Bell 206B · Engine/Transmission CouplingSDR ALGA102910888259Cap · crackedUPPER L/E CAP PN 206-020-113-173 OF VERTICAL FIN CRACKED.Oct 29, 2010 · N497AL · Bell 407 · Rotorcraft Tail BoomSDR CA101004001Scroll · crackedDURING A POST FLIGHT CHECK A CRACK WAS NOTICED ON THE COMPRESSOR SCROLL AT THE 2 O`CLOCK POSITION, DIRECTLY AT THE COSTOMER BLEED PORT HOLE.Sep 30, 2010 · Bell 206B · Turbine Engine Compressor SectionSDR CA101006012Blade · failed(CAN) DURING A DAILY INSPECTION A LARGE (4.5") CIRCULAR BLISTER WAS NOTED ON THE MAIN ROTOR BLADE. BOTH TOP AND BOTTOM OF THE BLADE WERE AFFECTED. THE AREA OF DELAMINATION WAS 28` OUTBOARD OF THE ROOT OF THE BLADE, DIRECTLY ADJACENT TO THE LAST OUTBOARD DOUBLESep 24, 2010 · Bell 206B · Main Rotor BladesSDR CA101110003Actuator · leaking(CAN) SERVO ACTUATOR PN: 206-076-031-013 FOUND LEAKING DURING MAINTENANCE GROUND RUN.Sep 23, 2010 · Bell 206B · Rotorcraft Servo SystemSDR MHIA082G001Canopy · crackedCANOPY FOUND DAMAGED AT THE UPPER LT DOOR FRAME.Sep 18, 2010 · N406LH · Aerosp AS355F1 · Fuselage Main, StructureSDR CA100920007Compressor Blade · separatedBLADE SEPARATION FROM 3RD STAGE COMPRESSOR WHEEL, FATIGUE FAILURE.Sep 10, 2010 · Bell 206B · Turbine Engine Compressor SectionSDR CA100923002Yoke · brinelled(CAN) DURING MAIN ROTOR SWASH PLATE REPLACEMENT THE YOKE WAS NOTED TO HAVE EXCESSIVE MOVEMENT. BRINELLING WAS NOTED AND YOKE REPLACED.Sep 3, 2010 · Bell 206B · Main Rotor Mast/SwashplateSDR CA100923003Servo · binding(CAN) PILOT NOTED STIFF SPOTS IN COLLECTIVE MOVEMENT. DURING INSPECTION OF SWASHPLATE FOR SMOOTHNESS HYDRAULIC COLLECTIVE SERVO FOUND TO HAVE TIGHT SPOTS. COLLECTIVE SERVO REPLACED. NO FURTHER ISSUES NOTED.Sep 1, 2010 · Bell 206B · Rotorcraft Servo SystemSDR 2010F00179Transmission · warning lightAFTER INITIAL CLIMB-OUT AND LEVEL OFF AT 1500 FT AGL THE ACFT DISPLAYED A "MASTER CAUTION", LIGHT WITH ASSOCIATED "XMSN CHIPS". ALL OTHER TRANSMISSION INDICATIONS WERE NORMAL. THE LIGHT WAS ON SOLID AND THE "CHIP ZAPPER" WAS APPLIED. THE CHIP LIGHT EXTINGUISHEJul 22, 2010 · N22RX · Agusta A109A · Main Rotor GearboxSDR 2010FA0001210Governor · malfunctionedTHE PILOT IN COMMAND (PIC) REPORTED THAT WHILE INCREASING POWER IN A LEVEL FLIGHT ATTITUDE, THAT THE NR (MAIN ROTOR SPEED, RPM) AND THE N2 (ENGINE POWER TURBINE SPEED, RPM) INCREASED ABOVE 110 PERCENT N2. AN INITIAL ATTEMPT TO LOWER THE NR/N2 RPM WITH THE N2Jul 20, 2010 · N505MP · Hughes 369E · Turbine GovernorSDR CA100722008Fcu · failedTHE FCU WAS NOT RESPONDING AT FLIGHT IDLE, FCU REPLACED.Jul 11, 2010 · Bell 206B · Fuel Control/Turbine EnginesSDR CA101001004Bearing · spalledENGINE CHIP LIGHT ACTIVATED, ACFT PERFORMED PRECAUTIONARY LANDING. CHIP PLUG WAS INSPECTED, FOUND SIGNIFICANT BUT ALLOWABLE METAL ON BOTH PLUGS. RETURNING TO BASE, CHIP LIGHT ILLUMINATED AGAIN JUST BEFORE LANDING. SIGNIFICANT METAL FOUND AGAIN ON BOTH PLUGSJul 10, 2010 · Bell 206B · Turbine SectionSDR CA100707007Bearing · spalledTHE 21/2 BEARING AND RACE WERE SPALLING AND CAUSED SEVERAL CHIP LIGHTS. THE GEARBOX AND COMPRESSOR PN 6890550, REPLACED.Jun 25, 2010 · Bell 206B · Turbine Engine Compressor SectionSDR CA100517005Box Beam · crackedACFT INSPECTED IAW AWD CF-91-35 - CRACK FOUND IN LT AFT MOST HOLE OF BOX BEAM BASE SKIN. ENGINEERING CONSULTED FOR REPAIR SCHEME.May 14, 2010 · Bell 206B · Fuselage Main, StructureSDR CA100504008Fcu · erraticTHE ENG HAD ERRATIC THROTTLE RESPONSE AT FLIGHT IDLE. THE FCU WAS REPLACED AND TESTED SERVICABLE.Apr 22, 2010 · Bell 206B · Fuel Control/Turbine EnginesSDR S9H2010F00000Structure · crackedDURING ROUTINE 100 HR INSPECTION OF TAIL ROTOR DRIVE SHAFT BEARINGS, FOUND CRACK IN THE UPPER VERTICAL STABILIZER. REPLACED VERTICAL STABILIZER WITH SERVICEABLE UNIT.Apr 4, 2010 · N548SA · Aerosp AS355F1 · Rotorcraft Tail BoomSDR 2010FA0000167Fuel Tank · deterioratedDURING TAKEOFF, A COMPRESSOR STALL FOLLOWED BY ENGINE SEARCH WAS EXPERIENCED. THE ENGINE HAS BEEN INSPECTED AND MX PROCEDURE PERFORMED FOUNDED ALL NORMAL. HELICOPTER FUEL TANK INSPECTED AND FOUNDED DEBRIS FROM AN UNKNOWN SOURCE LIKE RUBBER. HELICOPTER LATER Feb 19, 2010 · N127PD · Hughes 369E · Fuel StorageSDR CA091203007Plate · unserviceable(CAN) DURING INSTALLATION OF THE TAIL ROTOR GEARBOX, PLATES WHICH SUPPORT THE TAIL ROTOR PITCH CHANGE MECHANISM BELLCRANK, PN 206-001-756-009 WERE LOOSE AND APPEARED TO HAVE "WORKING RIVETS". WHEN FORCE IS APPLIED BOTH UPPER AND LOWER PLATES MOVE FORE AND AFDec 2, 2009 · Bell 206B · Rotorcraft Tail BoomSDR HDN2009000010Wire Harness · frayedDURING RETURN FLIGHT, THE NR 1 ENG FIRE LIGHT ILLUMINATED. NO FIRE WAS DETECTED. FIVE MINUTES AFTER LANDING, THE FIRE LIGHT EXTINGUISHED. IT WAS FOUND THAT A WIRE WAS BROKEN AND WAS HELD ON BY SEVERAL STRANDS CAUSING A FALSE INDICATION.Nov 21, 2009 · N911HD · Bolkms BO105S · Fire Protection System WiringSDR 2011FA0000663Drive Shaft · brokenHELICOPTER WAS TOOK OFF EMPTY FROM LANDING PAD TO SURVEY AREA. DURING TAKEOFF A "POPPING" SOUND WAS HEARD BY PILOT AND GROUND CREW AND THE ACFT WOULD NOT DEVELOP SUFFICIENT ENGINE TORQUE TO CLEAR TERRAIN. FOLLOW UP TO ACCIDENT FOUND ENGINE DRIVE SHAFT HAD SESep 27, 2009 · N298CP · Bell OH58A · Engine/Transmission CouplingSDR CA090914007Fuel Control · failed(CAN) WHEN TRYING TO ACCELERATE FROM IDLE TO 100% COMPRESSOR STALLING OCCURED WHEN THE ENGINE WAS HOT AFTER 1ST START OF THE DAY. NO PROBLEMS AT 100%, JUST SURGES ON ACCELERATION AS SOON AS THE PILOT ADVANCES THE THROTTLE (TC# 20090914007)Sep 13, 2009 · Bell 206B · Fuel Controlling SystemSDR CA090914008Bleed Valve · sticks(CAN) BLEED VALVE VERY HARD TO MOVE, STICKY OPERATION, NOT MOVING FEELY WHEN ENGINE RUNNING. (TC 20090914008)Sep 11, 2009 · Bell 206B · Compressor Bleed ValveSDR S9H2010F00001Fuel Filter · unserviceableRT ENGINE FLAMED OUT WHILE IN FLIGHT, AUTO RE-LIGHT, RE-ENGAGED THEN FLAMED OUT AGAIN, PERFORMED EP IAW POH. R & R ENGINE FUEL FILTER, BLED FUEL SYS AT BOOST PUMP AND FUEL NOZZLE.Aug 5, 2009 · N548SA · Aerosp AS355F1 · Engine Fuel DistributionSDR 2009FA0000633Blade · dislodgedBALANCE WEIGHT CAME LOOSE INSIDE OF MAIN ROTOR BLADE. WEIGHT WAS PROJECTED OUT OF THE OTBD BLADE CAP CAUSING THE TIE DOWN RING AND END CAP TO COME DISLODGED FROM THE ROTOR BLADE.Jul 21, 2009 · N78906 · Bell 206B · Main Rotor BladesSDR 2009FA0000653Housing · brokenTHE ENGINE HAD BEEN INSTALLED IN THE ACFT AFTER OVERHAUL OF THE ACCY GEARBOX ENG HAD SUCCESSFULLY COMPLETED A GROUND RUN AND LEAK CHECK AS SPECIFIED IN ENG MFG MM. OIL PRESSURE INDICATION WAS AT HIGH END OF NORMAL OPERATING RANGE AS SPECIFIED BY THE ACFT FLIJul 9, 2009 · N8159J · Bell 206B · Accessory GearboxesSDR CA090213006Shaft · bent(CAN) TAILROTOR WAS UNABLE TO BALANCE, TROUBLESHOOTING REVEALED THE OUTPUT SHAFT WAS BENT.Feb 10, 2009 · Bell 206B · Tail Rotor Gearbox
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