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 BAQA085970Indicator · precessesUNIT PRECESSES BADLY AT TIMES. REPLACED WITH SERVICEABLE UNIT.Apr 15, 2003 · N911KY · Aerosp AS355F1 · Navigation SystemSDR CA030421009Accumulator · leaking(CAN) DURING AIR LEAK CHECK & AFTER FUEL SYSTEM MAINTENANCE, A LEAK WAS DETECTED AT END OF ACCUMULATOR, WHERE MALL ADAPTER IS ATTACHED.Apr 3, 2003 · Bell 206B · Fuel StorageSDR CA030407006Saddle · cracked(CAN) UPON PREFLIGHT INSPECTION, CRACK WAS DETECTED VISUALLY IN AFT OUTBOARD SADDLE OF LT SIDE TUBE. THE MANUFACTURER PUBLISHED SERVICE INSTRUCTION DRAWING NO.DSI 9150 DATED 99.04.01 TITLED (ADD 206 SADDLE SPACERS) TO PREVENT SADDLE CRACKING. THIS AIRCRAFT HAApr 2, 2003 · Bell 206B · Wheel/Ski/FloatSDR CA031124003Skid · broken(CAN) DURING FLIGHT OPERATION THE SKID GEAR (SUPPLEMENTAL TYPE CERTIFICATE HIGH SKID WITH FLIGHT STEP CONFIGURATION) WAS FOUND WITH 14 INCHES BROKEN.Apr 1, 2003 · Bell 206B · Wheel/Ski/FloatSDR CA030409013Structure · cracked(CAN) WHILE IN CRUISE FLIGHT THE PILOT NOTICED A YAW TO THE RIGHT. UPON LANDING HE NOTICED THAT THE TAIL FELT TWITCHY AND SHUTDOWN TO INVESTIGATE. WHEN HE GOT OUT HE NOTICED THE TOP HALF OF THE VERTICAL STABILIZER BENT OVER TO THE RIGHT HANGING ON BY THE RT SKMar 28, 2003 · Bell 206A · Vertical Stabilizer, Plate/SkinSDR BAQA085088Governor · inoperativeGOVERNOR WILL NOT GOVERN, INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.Mar 4, 2003 · N9UC · Aerosp AS355F · Turbine GovernorSDR CA030314004Bearing · failed(CAN) ON TEST FLIGHT FOLLOWING SCHEDULED MAINTENANCE INSPECTION, ENGINE CHIP LIGHT ILLUMINATED. AIRCRAFT LANDED AND ENGINE WAS SHUTDOWN, N2 DECAYED RAPIDLY AT SHUTDONW. TURBINE WAS FOUND TO HAVE ROTATIONAL BINDING, SUSPECT NR 8 BEARING FAILURE. METAL CONTAMINMar 3, 2003 · Bell 206B · Turbine SectionSDR EOO2003F00000Bracket · crackedFOUND GOVERNOR BELLCRANK BRACKET CRACKED. (SOR 300199 DATED 02/24/2003) A LEAK WAS SPOTTED COMING FROM UNDER THE GOV. BELCRANK BRACKET 369A7701. PART WAS REMOVED AND SUBSEQUENT INSPECTION REVEALED IT WAS CRACKED NEAR ONE OF THE BOLT HOLES. REPLACED UNIT.Feb 24, 2003 · N90431 · Hughes 369D · Turbine GovernorSDR BAQA084698Controller · brokenBACK OF CONNECTOR ON HSI IS BROKEN. BROKEN AT TIME OF RECEIVING.Feb 24, 2003 · N941MS · Aerosp AS355F2 · Glide Slope SystemSDR 2003FA0001225Shaft · wornDURING ANNUAL INSPECTION, FOUND KNURLED NUT WORN BEYOND LIMIST. UPON REMOVAL OF THE KNURLED NUT AND TAIL ROTOR BALANCE WHEEL FOUND THREADS ON TAIL ROTOR GEARBOX OUTPUT SHAFT, UNDER BALANCE WHEEL, EXCESSIVELY WORN AND GALLED. CUSTOMERS PILOT REPORTED THAT THEFeb 11, 2003 · N921RB · Bell 206B · Tail Rotor GearboxSDR Z9B2003F00001Transmission · making metalMETAL IN OIL RESULTING IN CHIP WARNING INDICATIONS. OIL FILTER CONTAINED BARASS AND IRON FINE FLAKES AND SLIVERS. SENT TO FACTORY REPAIR STATION FOR ANALYSIS AND REPAIR.Dec 20, 2002 · N131AE · Bolkms BO105S · Main Rotor GearboxSDR AC2A082143Governor · loosePOTTING COMPOUND IS BROKEN LOOSE AT SHAFT REPLACED WITH SERVICEABLE GOVERNOR.Dec 17, 2002 · N50588 · Bolkms BO105S · Turbine GovernorSDR Z9B2003F00002Brushes · wornSTARTER GEN, AT 100 HOUR INSPECTION FOUND COMMUTATOR WORN DOWN TO UNDERCUT, BRUSHES STILL SERVICEABLE. MAY NOT HAVE BEEN PROPERLY UNDERCUT AT LAST OVERHAUL.Dec 17, 2002 · N131AE · Bolkms BO105S · Starter-GeneratorSDR HEEA082799Labyrinth Seal · contaminatedCARBON BUILD UP IN LABYRINTH SEALS CAUSING BINDING NG.Dec 16, 2002 · N973AE · Aerosp AS355* · Turbine Engine Oil SystemSDR HEEA082800Metering Valve · leakingFUEL LEAKING FROM CASE DRAIN OF METERING VALVE.Dec 16, 2002 · N972AE · Aerosp AS355* · Turbine GovernorSDR HEEA082679Governor · failedNR 2 ENGINE DECELLED ON TAKEOFF. REPLACED NR 2 GOVERNOR.Dec 13, 2002 · N7136H · Bolkms BO105S · Turbine GovernorSDR Z9B2003F00000Clutch · failedRUBBING NOISE ON COAST DOWN AFTER SHUTDOWN. FOUND OVER-RUNNING CLUTCH ASSY HAD LOST ALL OIL. TOP BEARING CAP WAS BACKED .5000 OFF THREADS OF OUTER RACE SHAFT. CLUTCH STILL FUNCTIONED, BUT BEARINGS WERE BEGINING TO GRAB. TOP CAP LOCK WASHER STILL HAS PROPEDec 13, 2002 · N1600Q · Hughes 369E · Engine/Transmission CouplingSDR AC2A082141Governor · loosePOTTING COMPOUND IS BROKEN LOOSE AT SHAFT REPLACED WITH SERVICEABLE GOVERNORDec 12, 2002 · N50588 · Bolkms BO105S · Turbine GovernorSDR 2003FA0000072Grip · crackedCRACK LIKE INDICATION ON 9TH THREAD INBOARD WHICH EXCEEDS 15 PERCENT. IAW AD. PART REJECTED AND RED TAGGED BY REPAIR STATION. OPERATOR STATED PART WAS PURCHASED AS SPARE PRIOR TO AD. PART DESTROYED BY OPERATOR.Dec 12, 2002 · N8548F · Bell 47G3B1 · Tail Rotor BladesSDR HEEA082664Filter · damagedPC FILTER HANG STARTS ON ENGINE RINSE CYCLE. SCRAPPED.Dec 11, 2002 · N5031U · Bolkms BO105S · Fuel Controlling SystemSDR HEEA082665B-Nut · strippedPC TUBE FROM SCROLL TO PC FILTER B-NUT STRIPPED. SCRAPPED.Dec 11, 2002 · N5031U · Bolkms BO105S · Fuel Controlling SystemSDR HEEA082666Elbow · strippedPC FILTER SIDE STRIPPED. SCRAPPED.Dec 11, 2002 · N5031U · Bolkms BO105S · Fuel Controlling SystemSDR CA021231003Spacer · unapproved part(CAN) SPACERS ARE USED IN-BETWEEN THE MAST NUT AND THE MAIN ROTOR TRUNNION. THE QUESTION WAS RAISED IS THIS A BELL PART. IT WAS FOUND AFTER ASKING BELL HELICOPTERS TEXTRON PRODUCT SUPPORT THAT THIS SPACER WAS NOT A REPLACEMENT PART FOR THE DYNAMIC FLAP RESTRAIDec 11, 2002 · Bell 206B · Main Rotor Mast/SwashplateSDR AC2A081579Fuel Control · leakingFUEL CONTROL LEAKING FUEL FROM WHERE THE MAX FLOW STOP SHAFT ENTERS THE FUEL CONTROL BODY. THIS WAS FOUND DURING GROUND RUN, PRIOR TO TAKE-OFF. REPLACED FUEL CONTROL.Nov 25, 2002 · N8776 · Bolkms BO105S · Fuel Control/Turbine EnginesSDR ERAA082724Support · crackedPOWER TURBINE SUPPORT WAS OVERHAULED AND RETIRED WITH A CRACK ADJACENT TO A TACK WELD ON 25-28 SEAL.Nov 21, 2002 · N291EH · Bolkms BO105A · Turbine SectionSDR VE32002F00006Pump · leakingTHE HYDRAULIC PUMP WAS LEAKING. IT WAS SENT TO A LOCAL VENDOR FOR REPAIR. THE VENDOR BORE PLUGGED FROM RESEVOIR PORT TO RELIEF BORE. THE CAUSE WAS EXCESSIVE CASTING IN THE HOLE AT MANUFACTURE.Nov 20, 2002 · N305FD · Bell 206B · Hydraulic Pump (Electric/Engine), MainSDR ERAA082715Governor · malfunctionedCANNOT MAKE FINE ADJUSTMENTS TO ACHIEVE MAX BEEP. UNIT HAD DROOP. CHANGE BUSHING, D BEARING, L BEARINGS, W BEARINGS, TUBE DIAPHRAGM. REPAIRED AND FUNCTIONALLY TESTED.Nov 20, 2002 · N292EH · Bolkms BO105C · Fuel Controlling SystemSDR ERAA082716Governor · malfunctionedUNABLE TO ADJUST FOR TORQUE SPLITS. PC, PY FITTINGS LOOSE. LEVER CAM WORN, O LEVER. REPLACED WORN PARTS FOUND DURING INSPECTIN IAW CMM 73-20-25. FUNCTIONALLY TESTED 10-29-02.Nov 20, 2002 · N124EH · Bolkms BO105S · Fuel Controlling SystemSDR ALG2003F00037Fuel Cap · bentDURING PREFLIGHT, PILOT DISCOVERED WATER IN THE FUEL SAMPLE, THE MECHANIC DEFUELED THE AIRCRAFT AND REMOVED AND REPLACED THE AIRFRAME FUEL FILTER, FUEL NOZZLE, FUEL CAP, FUEL LINES WERE FLUSHED WITH FRESH FUEL, THE MECHANIC DETERMINED THE OLD FUEL CAP WAS SLIGOct 29, 2002 · N168H · Bell 206B · Fuel StorageSDR YT2R631367Switch · inoperativeFUEL BOOST SWITCH INOPERATIVE UPON INSTALLATION.Oct 23, 2002 · Bell 206B · Fuel Indicating SystemSDR YT2R631369Switch · inoperativeFUEL BOOST SWITCH INOPERATIVE UPON INSTALLATION.Oct 23, 2002 · Bell 206B · Fuel Indicating SystemSDR CA021129009Seal · warped(CAN) AME INSTALLED TURBINE ASSEMBLY FOLLOWING REPAIR. ON GROUND RUN, OIL LEAK WAS OBSERVED BETWEEN PT SUPPORT AND THE EXTERNAL OIL SUMP. SUMP WAS REMOVED AND SEALING FLANGE INSPECTED WITH A STRAIGHT EDGE. SEALING FLANGE WAS WARPED EXCESSIVELY (CRUSH SEAL FAOct 17, 2002 · Bell 206A · Turbine Engine Oil SystemSDR LS1R088304Pump · inoperativeFUEL PUMP INOPERATIVE.Oct 17, 2002 · N5027P · Hughes 369D · Engine Fuel DistributionSDR JJWA0049154Skid · corrodedHIGH SKID GEAR TUBE DISSIMILAR METAL CORROSION CRACK FOUND STARTING WITH SKID SHOE INSERT NUT UNDER AFT CROSSTUBE TITTING, ONLY 3 YEARS OLD, CRACK MAY HAVE BEEN MISSED FOR A WHILE ON INSPECTIONS.Sep 25, 2002 · N281CB · Bell 206B · Wheel/Ski/FloatSDR JJWA0049155Skid · crackedSKID GEAR LANDING TUBE FOUND DISSIMILAR METAL CORROSION CRACK STARTING WITH SKID SHOE INSERT NUT AFT CROSSTUBE FITTING, NON-REPAIRABLE AREA. TUBE ONLY 3 YEARS OLD, CRACK MAY HAVE BEEN MISSED ON PAST INSPECTORS.Sep 25, 2002 · N281CB · Bell 206B · Wheel/Ski/FloatSDR CA021007004Line · cracked(CAN) AIRCRAFT LANDED NORMAL SHUTDOWN. FUEL WAS NOTICED DRIPPING FROM ENGINE PAN DRAIN. BOOST PUMPS TURNED ON TO CHECK FOR STATIC LEAKS. FOUND SUBJECT LINE DRIPPING FUEL AROUND 'B' NUT. NUT WAS CHECKED AND WAS TIGHT. LINE WAS REMOVED AND INSPECTED ANDSep 20, 2002 · Bell 206B · Engine Fuel DistributionSDR LS1R088305Indicator · stickingINDICATOR STICKING. (N1 TACH)Sep 9, 2002 · N8330P · Hughes 369E · Engine RPM Indicating SystemSDR KBMA115465O-Ring · failedENGINE HAS A REPORTED OIL LEAK. REPLACED O-RING AT REAR BEARING PRESSURE ELBOW.Aug 31, 2002 · N667JM · Bell 206B · Turbine Engine Oil SystemSDR B1HR631360Indicator · failedREPLACED GAUGE WITH RECONDITIONED UNIT, INDICATOR HAS FALSE EXCEEDANCES THAT CAN NOT BE CLEARED. WHEN LAPTOP IS CONNECTED GET AN ERROR SAYING THAT IP ADDRESS IS NOT CORRECT.Aug 30, 2002 · N407KA · Bell 407 · Engine BMEP/Torque IndicatingSDR KBMA115451Indicator · malfunctionedGAS PRODUCER GAUGE BACKLIGHTING, INOPERATIVE. REMOVED AND REPLACED WITH SERVICEABLE UNIT.Aug 26, 2002 · N667JM · Bell 206B · Engine RPM Indicating SystemSDR KBMA115447Indicator · fluctuatesTACH NEEDLE FLUCTUATES BETWEEN 2 PERCENT TO 15 PERCENT WHILE AT GROUND IDLE. (DUAL TACH, NR 2 SIDE) REPLACED TACH WITH OVERHAULED UNIT. (INDICATOR)Aug 25, 2002 · N73DP · Bell 206B · Engine RPM Indicating SystemSDR B1HR631359Shaft · failedBEARING RACES ON SHAFT ARE BELOW MIN REQUIREMENT. BEARINGS WERE SPINNING ON SHAFT.Aug 23, 2002 · N3192G · Bell 206B · Main Rotor Drive SystemSDR CA020819006Actuator · failed(CAN) THE PILOT WAS IN CRUISE FLIGHT WHEN THE ROTOR TACH NEEDLE MOVED TO 98 PERCENT. THE PILOT TRIED TO INCREASE ROTOR SPEED BY USING THE INCREASE BUTTON ON THE GOVERNOR BEEP RANGE SWITCH, BUT NO REACTION. THE PILOT BEGAN DESCENT INTO THE WELL SITE AND ON PULAug 17, 2002 · Bell 206B · Turbine GovernorSDR CA020830001Governor · failed(CAN) PILOT NOTICED GOVERNOR OVERSPEEDING BEYOND SET LIMITS AND SHUT DOWN ENGINE.Aug 15, 2002 · Bell 206B · Turbine GovernorSDR 2002FA0001006Blade · delaminatedDURING HEAVY RAINFALL, AIRCRAFT EXPERIENCED VIBRATION ON MAIN ROTOR SYSTEM. PILOT PERFORMED A PRECAUTIONARY LANDING. MECHANIC INSPECTED THE MAIN ROTOR BLADES AFTER SHUT DOWN. MECHANIC FOUND BOTTOM SIDE OF ONE BLADE 2 INCHES AFT OF LEADING EDGE WITH METAL SKJul 16, 2002 · N175PA · Bell 407 · Main Rotor BladesSDR R7MR35517Transmitter · inoperativeFUEL LEVEL TRANMITTER INOPERATIVE UPON INSTALL. PEGS HIGH AT ANY LEVEL ABOVE 5 PERCENT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 16, 2002 · N30LG · Snias AS350* · Fuel Quantity SensorSDR JJW2002F00000Stiffener · crackedFOUND STIFFNER CRACKED DURING INSPECTION - CRACK ORIGINATED IN LOWEST HI-LOCK FASTENER POSITION 2.875 INCH BELOW TOP OF PART. ALSO SPLICED NEW WEB (PN 206031106349S) DUE TO CRACK IN WEB FROM SAME LOCATION. REPLACED STIFFNER. ALL WORK IAW SRM.Jul 12, 2002 · N281CB · Bell 206B · Fuselage Miscellaneous StructureSDR KBMA117648Support · wornTRANSMISSION MOUNT MAKES CLICKING SOUND. RIGHT SIDE, BEARING WAS WORN BEYOND LIMITS. REPLACED WITH NEW SUPPORT AND BEARING.Jul 1, 2002 · N73DP · Bell 206B · Main Rotor GearboxSDR ERAA080337Fuel Control · out of adjustFCU OUT OF CALIBRATION. METERING VALVE FUEL FLOW SETTING FOUND LOWJun 11, 2002 · N124EH · Bolkms BO105S · Fuel Control/Turbine EnginesSDR R7MR35306Transmitter · leakingPRESSURE TRANSMITTER, LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jun 4, 2002 · N485EC · Bolkms BO105S · Engine Oil Pressure
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