Allison 250-C30S
Service difficulty reports · 449
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 = '250C30S' 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.
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 = '250C30S' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR ALG2005F00119Engine · failedIN FLIGHT, NR 1 ENGINE T-5 INCREASED IN TEMPERATURE, AFTER LANDING, NOTIFIED MAINTENANCE. A POWER CHECK REVEALED THAT NR 1 ENGINE WAS A -7. REMOVED AND REPLACED ENGINE WITH A SERVICEABLE ASSEMBLY IAW MM. (K)SDR CA051213003Bearing · seizedNR 2 ENGINE OIL OVER TEMPERATURE WAS OBSERVED BY CREW DURING ROUTINE FLIGHT. SINGLE ENGINE LANDING WAS EXECUTED AT NEAREST AIRPORT. UPON INSPECTION IT WAS APPARENT THAT NR 2 ENGINE OIL COOLER BLOWER FAILED. THE REAR BEARING SEIZED, BLOWER SHAFT SHEARED NEARSDR ALG2005F00071Fuel Filter · failedAFTER TAKEOFF, FUEL PRESSURE DROPPED TO 4 PSI. RETURNED TO BASE AND NOTIFIED MAINTENANCE. MAINTENANCE REPLACED NR 1 FUEL FILTER. GROUND RUN AND OPS CHECK GOOD IAW MM. (K)SDR ALG2005F00077Pickup · failedDURING CRUISE FLIGHT, N2 INDICATOR WENT FROM 100 PERCENT TO ZERO. REMOVED AND REPLACED N2 PICKUP, NR 2 ENGINE WITH SERVICEABLE UNIT IAW MM. GROUND RUN AND OPS CHECK GOOD. (K)SDR ALG2005F00072Link · inoperativeAFTER TAKEOFF, LANDING GEAR WAS RETRACTED AND ALL GEAR LIGHTS EXTINGUISHED. FLIGHT CREW RECEIVED A RADIO CALL THAT THE MAIN LANDING WAS NOT FULLY RETRACTED. AIRCRAFT RETURNED AND MAINTENANCE WAS NOTIFIED. MAINTENANCE PERFORMED A GEAR RETRACTION TEST. THE ESDR CA051004002Blade · fractured(CAN) DURING IN-CRUISE POWER CHECK OF NR 1 ENGINE, NO 2 ENGINE (CHIP LIGHT) CAME ON, SHORTLY FOLLOWED BY (ENGINE OUT) HORN. THE ENGINE WAS BROUGHT BACK TO FLIGHT IDLE AND EMERGENCY LANDING WAS ACCOMPLISHED. ENGINE WAS SHUTDOWN. UPON PRELIMINARY INSPECTION ISDR ALG2005F00070Relay · inoperativeDURING THE START PROCEDURE, THE TRANSMISSION FIRE LIGHT AND HORN ACTIVATED. MAINTENANCE WAS NOTIFIED. THE K3 RELAY WAS REMOVED AND REPLACED. AC GROUND CHECKED GOOD. ALL WORK IAW MM. (K)SDR ALG2005F00039Connector · faultyON PRE START, NR 1 ENGINE FIRE TEE HANDLE LIGHTS WOULD NOT TEST IN FORWARD POSITION. THE MECHANIC REMOVED AND REPLACED THE FAULTY CONNECTOR AND THE AIRCRAFT WAS RETURNED TO SERVICE AFTER OPERATIONAL CHECK OF THE SYSTEM. (K)SDR ALG2005F00037Battery · inoperativeDURING FLIGHT, THE BATTERY HOT LIGHT CAME ON, THEN THE BTTERY OFF LIGHT CAME ON. THE PILOT FOLLOWED THE EMERGENCY CHECK LIST AND LANDED. THE MECHANIC REMOVED AND REPLACED THE BATTERY, OPS CHECKED PERFORMED AND THE AC WAS RETURNED TO SERVICE. (K)SDR CA050630008Turbine Wheel · failedDURING SCHEDULED LANDING, WHILE THE WEIGHT OF THE A/C WAS ALREADY ON WHEELS, PILOT HEARD A LOUD BANG FOLLOWED BY NUMBER 2 ENGINE N2 DECELERATION AND ENGINE CHIPLIGHT INDICATIONS. PRELIMINARY INVESTIGATION REVEALED FAILURE OF THE THIRD STAGE TURBINE WHEEL (SEESDR CA050629003Governor · failedPT GOVERNOR, HIGH SIDE FAILURE.SDR CA050621020Bearing · spalledSPALLED BEARING RACE.SDR ALG2005F00032Battery · inoperativeDURING FLIGHT, BATTERY HOT AND BATTERY OFF LIGHT ILLUMINATED. EMERGENCY CHECKLIST CONSULTED, TURNED BATTERY SWITCH OFF AS A PRECAUTION. PROCEEDED FOR MAINTENANCE. MAINTENANCE REMOVED BATTERY AND INSTALLED SERVIEABLE BATTERY. THE OPS CHECK WAS GOOD AND SET SDR ALG2005F00028Valve · leakingWHILE HOVERING OUT FOR TAKEOFF, NOTICED HYDRAULIC FLUID ON THE HELIPAD. RETURNED TO PAD TO INVESTIGATE AND SHUTDOWN HELICOPTER AND THEN CONTACTED MAINTENANCE. MAINTENANCE FOUND LANDING GEAR VALVE BUTTON POPPED. RESET THE BUTTON AND COMPLIED WITH LANDING GEASDR ALG2005F00024Wire · brokenUPON PERFORMING THE T/O CHECK LIST, BOTH CREW MEMBERS NOTICED THAT THE LANDING GEARS WOULD NOT ACTUATE TO THE UP POSITION. CHECKED THE CIRCUIT BREAKERS AND RECYCLED LANDING GEAR, STILL IN THE LOCKED DOWN POSITION, RETURNED TO BASE WITH LESS THAN 130 KNOTS. MSDR CA050408002Shaft · sheared(CAN) AC GENERATOR SHAFT SHEARED.SDR HEEA107361Bolt · frozenAFTER TAKEOFF, RETRACTED LANDING GEAR IAW CHECKLIST. GEAR RETRACTION NORMAL. ON DOWNWIND LEG HEARD A LOUD POP FROM AFT LT SIDE OF AIRCRAFT AND THEN RED UNLOCK LIGHT CAME ON. SLOWED AIRCRAFT TO BELOW 80 KIAS AND RECYCLED GEAR LEVER. GEAR CAME DOWN NORMAL WISDR CA050323001Transducer · failed(CAN) PRESSURE TRANSDUCER FAILED, GIVING A HIGH READING ON INDICATOR.SDR ALG2005F00019Chip Detector · contaminatedDURING FLIGHT, THE NR 2 ENGINE CHIP LIGHT ILLUMINATED, EMERGENCY CHECK LIST COMPLIED WITH AND RETURNED TO DEPARTURE. MAINTENANCE REMOVED 2 EA CHIP PLUGS FROM THE NR 2 ENGINE, FOUND SMALL CHIP THAT WAS WITHIN LIMITS. REINSTALLED CHIP PLUGS AND COMPLIED WITH TSDR ALGA100035Gearbox · making metalFOUND METAL ON BOTH CHIP PLUGS. FOUND MAIN CAUSE TO BE PINION GEAR / REPAIRED G/BOX, REPLACED PINION GEAR,TORQUE METER GEAR,PTO GEARSHAFT.SDR 2005F00042Wire Harness · damagedDURING PRELANDING PROCEDURES LANDING GEAR LIGHTS FAILED TO ILLUMINATE UPON GEAR EXTENSION. LANDING GEAR CIRCUIT BREAKER WAS RECYCLED SEVERAL TIMES AND LANDING GEAR POSITION WAS RECYCLED SEVERAL TIMES. AFTER THE CIRCUIT BREAKERS WERE RECYCLED LANDING GEAR LIGSDR EGRA200501Tube · crackedAFTER NORMAL LANDING AND SHUTDOWN AT HOSPITAL A LARGE PUDDLE OF OIL WAS FOUND UNDER THE AIRCRAFT. FURTHER INVESTIGATION SHOWED OIL COVERING NR 1 ENGINE DECK AND OIL QUANTITY WAS DOWN BY THREE QUARTS. OIL TEMP AND PRESS WERE NORMAL AT SHUTDOWN. THE LABYRINTHSDR ALGA109060Shaft · shearedSHAFT SHEARED IN THREAD PORTION, AT BASE OF ATTACHING NUT. REPLACED W/NEW OR SERVICEABLE UNIT BY FIELD MAINT.SDR ALG2005F00014Wire Harness · unserviceableON RUN-UP, LANDING GEAR NOSE WHEEL GREEN LIGHT GOES OFF AND RED UNSAFE LIGHT COMES ON (KEEPS REPEATING), GREEN LIGHT COMES ON AND THE RED LIGHT GOES OUT. MAINTENANCE REMOVED LT NOSE WHEEL HARNESS (DOWN AND LOCK) AND INSTALLED SERVICEABLE HARNESS, OPS CHECK OFSDR ALG2005F00013Float · deployedAFTER LANDING, ON EI309, WHILE COMPLETING THE (AFTER LANDING CHECK LIST) THE CO-PILOT INADVERTENTLY DEPLOYED THE FLOATS. THE MECHANIC DEFLATED ALL FLOATS AND REPACKED FRONT FLOATS AND REPLACED RT AND LT FLOAT GEAR DOORS, ALSO CHANGED ALL 4 FLOAT BOTTLES. (K)SDR ALG2005F00011Wire · brokenDURING LANDING PHASE TO MC506 (OCEAN VICTORY) THE LANDING GEAR WOULD NOT EXTEND. NOTICED THE CIRCUIT WAS OUT. TRIED TO RESET IT BUT WOULD NOT STAY IN. DIVERTED AIRCRAFT FOR MAINTENANCE. MAINTENANCE FOUND WIRE BROKEN AT PIN R (CONNECTOR PLUG P105) REPAIRED SDR CA050105005Exhaust Duct · cracked(CAN) PILOT REPORTED, NO N2 INDICATION FOR NR 2 ENGINE. UPON INSPECTION, WHEN N2 PICKUP WAS REMOVED FROM THE ACCY GEARBOX, IT WAS OBSERVED THAT THE NR 5 BEARING NUT HAD BACKED OFF ON THE PT OUTER SHAFT TRAVELING AWAY FROM THE N2 PICKUP, HENCE 'NO N2 INDICATIONSDR CA050615010Housing · cracked(ENGINE OIL FILTER) BYPASS INDICATOR HOUSING CRACKED.SDR ALG2005F00009Amplifier · smokeLANDING, ON DOWN WIND APPROACH SMELLED ODOR, ON FINAL THE ODOR BECAME STRONGER, ON LANDING SMOKE CAME FROM OVERHEAD CIRCUIT BREAKER PANEL AREA. THE NR 2 PITCH AMP BREAKER POPPED. MAINTENANCE PULLED OVERHEAD AND AFCS CIRCUIT BREAKER PANEL, FOUND NO EVIDENCE OSDR ALG2005F00004Pump · inoperativeON OPS CHECK FLIGHT FOR HYDRAULIC MODULE CHANGE AND GEAR RETRACTION CHECK, GEAR WILL NOT RETRACT RED UNSAFE LIGHT STAYS ON. MAINTENANCE REMOVED HYDRAULIC PUMP SN 195835 AND INSTALLED SERVICEABLE PUMP SN 19747. OPS/LEAK CHECK WAS GOOD ADJUSTED WEIGHT O WHEELSSDR CA041223004Support · corroded(CAN) DURING INSPECTION MANDATED BY ASB 76-65-62 SEVERE FRETTING WAS DISCOVERED ON LOWER FAYING SURFACE. SUPPORT ARM HAS BEEN REPLACED AND A/C RETURNED TO SERVICE.SDR ALG2005F00006Module · inoperativeAFTER TAKE OFF, GEAR DID NOT RAISE NORMALLY- RED LIGHT ON 3 GREENS OFF. VISUAL CONFIRMATION 3 GEAR HANGING DOWN. RECYCLED SEVERAL TIMES DECREASED AIRSPEED AT 20 KNOTS GEAR FINALLY RETRACTED, ALL LIGHTS OUT. MAINTENANCE REMOVED AND REPLACED HYDRAULIC MODULE SDR ALG2005F00010Proximity Switch · out of adjustON TAKE OFF, AFTER RAISING GEAR HANDLE, THE RED LIGHT WOULD NOT GO OUT. RECYCLED GEAR NO CHANGE, RETURNED TO GET FIXED. MAINTENANCE ADJUSTED PROXIMITY SWITCH TO PROPER POSITION, HAD PILOT PULL TO A HOVER AND CYCLE THE LANDING GEAR ALL LIGHTS WENT OUT, RETURNSDR ALG2005F00000Engine · making metalNR 1 ENGINE CHIP LIGHT ILLUMINATED IN CRUISE FLIGHT, COMPLIED WITH CHECKLIST PROCEDURES AND CONTINUED TO AIRPORT. MAINTENANCE REMOVED 2 EA CHIP PLUGS FOUND ONE TINY SLIVER ON FORWARD PLUG AND SMALL CARBON ON AFT PLUG. DRAINED AND RESERVICED OIL SYSTEM, CHECKSDR ALG2004F00069Engine · making metalON CLIMB OUT NR 1 ENGINE CHIP LIGHT ILLUMINATED, PILOT RETURNED TO AIRPORT. THE MECHANIC REMOVED AND REPLACED NR 1 ENGINE. AIRCRAFT WAS RETURNED TO SERVICE.SDR ALG2004F00060Engine · making metalAFTER TAKEOFF, NR 1 ENGINE CHIP LIGHT ILLUMINATED, PILOT RETURNED TO RIG. THE MECHANIC REMOVED, CLEANED, AND INSPECTED NR ENGINE CHIP PLUGS. SMALL HAIR LIKE SILVER WAS DISCOVERED. UPON CLEANING THE CHIP PLUGS, COMPLIED WITH GROUND RUN AND LEAK CHECK, NO DISSDR ALG2004F00056Amplifier · inoperativeIN CRUISE FLIGHT, BOTH ENGINES STARTED SURGING, EMERGENCY CHECK LIST COMPLIED WITH AND RUN ON LANDING. MAINTENANCE COMPLIED WITH VISUAL INSP OF BOTH ENGINES AND N1 AND N2 CONTROL SYSTEMS, COMPLIED WITH GROUND RUN CHECK AND AFTER ABOUT FIVE MINUTES EXPERIENCEDSDR ALG2004F00054Amplifier · unserviceableON TAKE OFF, IN FLIGHT, THE NR 1 FIRE WARNING LIGHTS AND TONE CAME ON, HAD NO OTHER INDICATION OF FIRE. MAINTENANCE REMOVED CONTROL AMPLIFIER AND INSTALLED SERVICEABLE AMPLIFIER, OPS CHECK WAS GOOD.SDR ALG2004F00061Amplifier · inoperativeON TAKE OFF, IN FLIGHT THE NR 1 FIRE WARNING LIGHTS AND TONE CAME ON, HAD NO OTHER INDICATION OF FIRE. MAINTENANCE REMOVED CONTROL AMPLIFIER AND INSTALLED SERVICEABLE AMPLIFIER, OPS CHECK WAS GOOD.SDR CA040914009Servo · leaking(CAN) AIRCRAFT IS CURRENTLY ON THAI REGISTRY BUT WE HAVE SUBMITTED THIS SDR AS THIS IS THE SECOND OCCURRENCE OF THIS TYPE IN THE PAST 2 YEARS. A/C RETURNED TO BASE REPORTING HYDRAULIC SYSTEM LIGHT. INVESTIGATION REVEALED TGB (OVERFILLED) IT WAS CONCLUDED TSDR ALG2004F00034Connector · dirtyAFTER TAKEOFF AND ENTERING CRUISE FLIGHT THE NR 2 SERVO SYSTEM CAUTION LIGHT ILLUMINATED, AFTER UTILIZING EMERGENCY CHECKLIST WAS UNABLE TO EXTINGUISH LIGHT, LANDED AND REFERRED TO MAINTENANCE. MAINTENANCE CLEANED CONNECTORS ON THE NR 2 HYDRAULIC MODULE NO FUSDR CA040909006Bearing · spalled(CAN) DURING ROUTINE 3 YEAR INSPECTION OF THE MAIN ROTOR SWASHPLATE DUPLEX BEARING AME DISCOVERED ONE OF THE BALLS TO BE SEVERELY SPALLED, BEARING WAS REPLACED AND A/C RETURNED TO SERVICE. SUBSEQUENTLY THE OUTER RACE WAS CUT OPEN REVEALING NO OTHER DAMAGE TO SDR ALG2004F00033Smoke Detector · will not testDURING RUN UP, FIRE DETECTOR IN AFT BAGGAGE COMPARTMENT LIGHT FAILED TO COME ON DURING TEST. MAINTENANCE CARRIED FORWARD TO MCOD, PART IS ON ORDER AND IT IS A 10 MEL ITEM. A FOLLOW UP REPORT WILL BE TURNED IN WHEN THE PART IS CHANGED AND OPERATIONAL CHECK ISSDR ALG2004F00027Cable · failedLT MAIN GEAR GREEN LIGHT WOULD NOT COME ON FOR LANDING AT EC335, LANDING GEAR WAS RECYCLED AND GOT THREE GREEN LIGHTS. AFTER TAKE OFF LANDING GEAR WAS RECYCLED TO SEE IF WE WOULD HAVE ANY MORE PROBLEMS, LT MAIN GEAR LIGHT WOULD NOT COME ON, GEAR WAS RECYCLED SDR ALGA097672Gear · spalledFOUND SPALLING ON GEAR TEETH. RETURNED TO VENDOR FOR WARRANTY CREDIT.SDR ALGA094198Turbine Wheel · out of toleranceFOUND FLOW AREA BELOW MIN. EFA 5.770. RETURNING PART TO VENDOR FOR WARRANTY CREDIT.SDR ALGA094199Turbine Wheel · out of toleranceFOUND FLOW AREA BELOW MIN. RETURNING PART TO VENDOR FOR WARRANTY CREDIT.SDR ALGA093899Gear · spalledFOUND HEAVY SPALLING ACROSS GEAR TEETH OF PTO GEAR.SDR ALG2004F00016Engine · overtempIN STRAIGHT AND LEVEL FLIGHT, NR 1 ENGINE OIL TEMPERATURE BEGAN TO CLIMB. AS IT APPROACHED, THE RED LINE WE BEGAN TO MONITOR CLOSELY. WHEN IT WENT ABOVE THE RED LINE, I FOLLOWED CKLIST PROCEDURES AND SHUT DOWN NR 1 ENGINE, MADE RUN ON LANDING. NO OTHER INDISDR ALG2004F00014Amplifier · inoperativeTHE BAGGAGE SMOKE DETECTOR CAUTION LIGHT CAME ON 3 TIMES OVER A TWO MINUTE PERIOD. THERE WAS NO OTHER INDICATION OF FIRE OR SMOKE, WITH THE LIGHT OUT WE LANDED. MAINTENANCE REPLACED SMOKE DETECTOR CONTROL AMPLIFIER AND REPLACED CONNECTOR AT THE SMOKE DETECTO
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