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 2002FA0001338Nozzle · failedENGINE FAILED WHILE AC WAS ON GROUND. UPON DISASSEMBLY OF ENGINE, FOUND GAS PRODUCER ROTOR TIE BOLT BROKEN IN HALF. FURTHER EXAMINATION FOUND THAT NR 2 NOZZLE, WHICH HAD BEEN OVERHAULED 1751 HOURS PRIOR, WAS MISSING 3 OF 5 KEYS THAT HOLD DIAPHRAGM IN PLACE. SDR CA021202004Line · leaking(CAN) THE AIRCRAFT LOST PRESSURE IN NR 2 HYDRAULIC DURING TAXI, AFTER SHUT DOWN NR 2 SYSTEM INDICATOR WAS AT EMPTY AND HYDRAULIC OIL WAS FOUND ON DECK UNDER MGB, PIN HOLE WAS FOUND ON ABOVE MENTIONED FLEX LINE. LINE WAS REPLACED AND NR 2 HYDRAULIC SYSTEM SERVISDR ALG2003F00016Bulb · failedDURING PREFLIGHT CHECK, BAGGAGE COMPARTMENT SMOKE DETECTOR WOULD NOT TEST, THE MECHANIC REPLACED THE BULB AND THE AIRCRAFT WAS RETURNED TO SERVICE.SDR ALG2003F00034Blade · vibrationDURING FLIGHT, PILOT ENCOUNTERED MODERATE VIBRATION OF MAIN ROTOR FOR 3 SECONDS IN CRUISE FLIGHT THEN IT CEASED. THE AIRCRAFT WAS DIVERTED TO LAFOURCHE AIRPORT IS LANDED WITH NO FURTHER PROBLEM, THE MECHANIC FOUND BLUE MAIN ROTOR BLADE EROSION TAPE TORN HE RESDR CA021024004Throttle Cable · broken(CAN) AFTER SEVERAL UNSUCCESSFUL ATTEMPTS BY THE PILOT TO START NR 1 ENGINE, MAINTENANCE PERSONNEL DISCOVERED THAT THE THROTTLE CABLE WAS BROKEN APPROX. 12 INCHES FROM THE FUEL CONTROL UNIT ATTACHMENT. CABLE HAS BEEN REPLACED AND A/C RETURNED TO SERVICE. A/SDR ALG2003F00038Fire Detector · will not testDURING PREFLIGHT START, AFT BAGGAGE FIRE DETECTION SYSTEM DID NOT TEST. THE MECHANIC REMOVED AND REPLACED THE SMOKE DETECTOR.SDR CA021029001Stator · debonded(CAN) NR 2 ENGINE CHIP LIGHT CAME ON IN FLIGHT. FINE HAIR LIKE METAL FOUND ON FORWARD CHIP PLUG. TURBINE REMOVED AND SENT TO SAL FOR TEAR DOWN AND INSPECTION. SILVER PLATING ON 3537 LAB STATOR FOUND DEBONDED CAUSING FINE SILVER SHAVING TO PEEL OFF. STATOR REPASDR ALG2003F00039Connector · corrodedDURING FLIGHT, NR 2 ENGINE FIRE CAUTION LIGHT ILLUMINATED ALONG WITH TWO LIGHTS ON THE (T) HANDLE. NO OTHER INDICATION THAT FIRE DID EXIST (T PERCENT, N1, N2 NORMAL) THE CAUTION LIGHT EXTINGUISHED AFTER 5 SECONDS AND DID NOT ILLUMINATE FOR THE REMAINDER OF 15SDR ALG2003F00003Chip Detector · dirtyDURING FLIGHT, NR 1 ENGINE CHIP DETECTOR LIGHT ILLUMINATED, THE PILOT FOLLOWED CORRECTIVE ACTION IAW EMERGENCY CHECKLIST, UPON LANDING THE MECHANIC REMOVED AND CLEANED THE NR 1 ENGINE CHIP DETECTORS AND ALSO REPLACED THE NR 1 ENGINE OIL FILTER AND THE AIRCRAFTSDR ALG2003F00051Governor · inoperativeDURING RUN-UP, AFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAILED (FLAMED OUT). THE MECHANIC REMOVED AND REPLACED THE GOVERNOR, FUEL CONTROL AND FUEL NOZZLE ON SDR ALG2003F00052Fuel Control · inoperativeDURING RUN-UP, AFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAILED (FLAMED OUT). THE MECHANIC REMOVED AND REPLACED THE GOVERNOR, FUEL CONTROL AND FUEL NOZZLE ON SDR ALG2003F00053Fuel Nozzle · inoperativeAFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAILED (FLAMED OUT). THE MECHANIC REMOVED AND REPLACED THE GOVERNOR, FUEL CONTROL AND FUEL NOZZLE ON THE NR 1 ENGINESDR ALG2003F00048Link Assy · inoperativeDURING LANDING, WHEN PILOT LOWERED THE LANDING GEAR, HE HEARD AN AUDIBLE THUMP, DURING HOVER ANOTHER PILOT REPORTED TO HIM THAT THE RIGHT MAIN GEAR WAS DOWN. THE COCKPIT LANDING GEAR LIGHT INDICATED THAT WERE UP AND SAFE, THE GEAR WAS EXTENDED AND NORMAL LANDSDR ALG2003F00045Control Panel · inoperativeDURING LANDING, THE LANDING GEAR WARNING HORN WENT ON AND STAYED ON WITH THE GEAR DOWN AND LOCKED (3 GREEN LIGHT). UPON LANDING THE LANDING GEAR WAS PINNED IAW MEL AND LOGBOOK ENTRY WAS MADE. SUBSEQUENT INSPECTION REVEALED BROKEN WIRE NR LGW503R20 AT PIN (2)SDR ALG2003F00041Chip Detector · activatedDURING FLIGHT, NR 2 ENGINE CHIP LIGHT ILLUMINATED AND WOULD NOT RESET, BEEPED NR 2 ENGINE ALL THE WAY BACK AND FLEW APPROXIMATELY 20 MINUTES SINGLE ENGINE AND PERFORMED RUN ON LANDING AT ARA. UPON LANDING NR 2 ENGINE WAS REMOVED.SDR ALG2003F00042Switch · failedDURING CRUISE FLIGHT, NR 2 SERVO SYSTEM CAUTION LIGHT ILLUMINATED, AIRCRAFT WAS DIVERTED TO INTRACOASTAL, PILOT FOLLOWED EMERGENCY CHECKLIST AND LANDED AT INTRACOASTAL. UPON LANDING, THE MECHANIC REMOVED AND REPLACED REARWARD PRESSURE SWITCH ON LEFT FORWARD SSDR CA021007002Windshield Wiper · sheared(CAN) PILOT SIDE WIPER BLADE ATTACH PIN SHEARED AT 110 KTS AIRSPEED. SECONDARY PIN REMAINED ATTACHED BUT ALLOWED WIPER BLADE TO FLAIL AGAINST WINDSHIELD. WIPERS TURNED OFF AND AIRSPEED REDUCED TO 60 KTS. AIRCRAFT LANDED AT NEXT SCHEDULED STOP AND WIPER ARM WASSDR CA021001005Seal · damaged(CAN) UNSCHEDULED LANDING DUE TO FLUCTUATING OIL PRESSURE AND LOW OIL WARNING LIGHT ON. ENGINE WAS REMOVEDAND REPLACED, TURBINE TEAR DOWN IS IN PROGRESS. ADDITIONAL DETAILS TO FOLLOW.SDR EGR2002F00010Connector · contaminatedNR 1 ENGINE FIRE DETECTOR LIGHT ILLUMINATED ON SHORT FINAL FOR 4 SECONDS, IN HEAVY RAIN WITHOUT AUDIO SIGNAL DURING RUN UP. TRANSMISSION BEARING CAUTION LIGHT ILLUMINATED FOR 10 SECONDS AND SUBSEQUENTLY EXTINGUISHED. REMOVED AND CLEANED FIRE DETECTOR CONNECSDR EGR2002F00007Light · inoperativeNR 2 ENGINE FUEL PRESSURE CAUTION LIGHT, INOPERATIVE. PIN ON NR 2 FUEL PRESSURE SWITCH CONNECTOR PLUG BACKED OUT. REINSTALLED NR 2 FUEL PRESSURE SWITCH CONNECTOR PLUG PIN AND FUNCTION CHECKED GOOD.SDR ALG2002F00062Radar · failedIN CRUISE FLIGHT, RADAR WORKING INTERMITTENTLY FOLLOWED BY SMOKE IN THE COCKPIT.SDR EGR2002F00006Chip Detector · illuminatedENROUTE, AT 2000 FEET, NR 2 ENGINE CHIP LIGHT ILLUMINATED COMPLIED WITH ENGINE CHECK LIST, LANDED AT EMERGENCY AIRPORT. REMOVED FORWARD AND AFT CHIP PLUGS, FOUND 2 SMALL FLAKES ON FORWARD PLUG, AFT PLUG FOUND 1 SMALL HAIR. CLEANED PLUGS AND INSTALLED. REMOSDR HEEA080425Valve · inoperativeANTI ICE VALVE INOPERATIVE, CAUSING BOTH GREEN AND YELLOW CAUTION LIGHTS TO ILLUMINATE ON MASTER CAUTION PANEL. REPLACED WITH SERVICEABLE PART.SDR HEEA080427Turbine Wheel · damagedENGINE REMOVED DUE TO CRACKED EXHAUST COLLECTOR. UPON INSPECTION OF TURBINE PARTS NOTED SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED AND REPLACED WITH SERVICEABLE PART.SDR HEEA080428Turbine Wheel · damagedENGINE REMOVED DUE TO NOISY TURBINE AND CRACKED EXHAUST COLLECTOR. UPON INSPECTION OF TURBINE PARTS NOTED SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. BLADES TRAILING EDGES WERE BROKEN OFF DUE TO SULFIDATION. SCRAPPED AND REPLACED WITH SERVICEABLE PART.SDR HEEA080403Seal · splitGEARBOX SEAL SPLIT (LEAKED ON TEST CELL RUN).SDR HEEA079918Turbine Wheel · damagedENGINE REMOVED DUE TO CRACKED NR 1 NOZZLE. UPON INSPECTION OF TURBINE PARTS NOTED SLIGHT SULFIDATION ON ALL 1ST STAGE TURBINE WHEEL BLADES AND 1ST STAGE TIP DRAG WITH 2ND STAGE NOZZLE. SCRAPPED.SDR HEEA079896Bearing Cage · failedENGINE REMOVED DUE TO TURBINE OVERHAUL. PARTS REPLACED IN COMPLIANCE WITH CEBA-72-3217 R4.SDR HEEA079897Bearing · failedENGINE REMOVED DUE TO TURBINE OVERHAUL. PARTS REPLACED IN COMPLIANCE WITH CEBA-72-3217 R4.SDR HEEA079889Turbine Wheel · damagedENGINE WAS REMOVED DUE TO VIBRATION AND SULFIDATION OF TURBINE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED 25 PERCENT OF THE 1ST STAGE WHEEL BLADE TIPS MISSING DUE TO SULFIDATION. SCRAPPED.SDR HEEA079325Tube · crackedTUBE CRACKED. REPLACED WITH SERVICEABLE PART.SDR HEEA078714Fuel Control · surgesNR 2 ENGINE SURGES. TESTED UNIT AS RECEIVED AND COULD NOT DUPLICATE PROBLEM. UNIT TESTED SATISFACTORY.SDR HEEA078506Carbon Seal · wornCOMPRESSOR CARBON SEAL HAS WORN TANGS AND SLOTS.SDR HEEA078474Fuel Control · damagedFUEL CONTROL ANTICIPATOR SHAFT RATCHETY.SDR CA020521007Housing · separated(CAN) 5.9 HOURS AFTER A SCHEDULED BRUSH CHANGE A LOUD "HUM" WAS DETECTED ON NR 2 GENERATOR. THE HUM STOPPED WHEN THE GENERATOR WAS SELECTED OFF. THE STARTER/GENERATOR WAS REMOVED AND THE BELL HOUSING LEGS WERE FOUND TO BE SEPARATED FROM THE MOUNTING RING. THE SDR ALG2002F00049Turbine · damagedTURBINE WAS REMOVED FROM AIRCRAFT DUE TO CRACKED EXHAUST COLLECTOR. REMOVED COMBUSTION SECTION AND FOUND HEAVY SULPHADATION AND CRACKS ON NR 1 WHEEL BLADES. CHECK NR 1 WHEEL FOR PROPER COATING ON BLADES.SDR ALG2002F00057Turbine Wheel · corrodedTURBINE WAS REMOVED FROM AIRCRAFT DUE TO LOW POWER. REMOVED COMBUSTION SECTION AND FOUND SULPHADATION ON NR 1 WHEEL BLADES.SDR HEEA078019Spur Adapter · failedCOMPRESSOR WAS REMOVED WITH ENGINE DUE TO TURBINE NR 1 & 2 WHEEL CYCLES. DECISION MADE TO COMPLY WITH COMPRESSOR 2000 HOUR INSPECTION AND OVERHAUL FOR IHTI REQUIREMENTS. SPUR GEAR FAILED NO-GO GAUGE CHECK. SUBMITTAL FOR CREDIT ACCOMPLISHED ON AFA 63885A.SDR ALG2002F00008Smoke Detector · failedON ENGINE START, FOUND BAGGAGE COMPARTMENT SMOKE DETECTOR FAILED TEST.SDR ALG2002F00054Gear · mismanufacturedGEARBOX WAS DISASSEMBLED DUE TO ENGINE CHIP LIGHT. IMPROPER MACHINING AND MESHING OF GEAR TEETH, CAUSING PINION GEAR TO GALL. ALSO CAUSED EXCESSIVE METAL CONTAMINATION. ASSURE PROPER MACHINING AND MECHING OF GEAR TEETH AT FACTORY.SDR CA020220007Crossover Tube · cracked(CAN) DURING A POST FLIGHT INSPECTION THE AME FOUND A CRACK ON THE MAIN LANDING GEAR CROSS TUBE WHEN REMOVED. THE CRACK WAS FOUND TO BE 360 DEGREES AROUND THE TUBE, ALLOWING SEPARATION OF THE ROD END. THE TUBE WAS REPLACED.SDR ALG2002F00005Brushes · disintegratedPILOT WRITE UP AT END OF DAY. WHEN START BUTTON IS DEPRESSED (NR 2 ENGINE) STARTER CHATTERS AND HAS GRINDING NOISE. WHEN RELEASED AND DEPRESSED AGAIN, A FAIRLY NORMAL START IS ACHIEVED. UPON INSPECTION OF STARTER GENERATOR, BRUSHES FOUND TO BE DISINTEGRATEDSDR HEEA077550Gearshaft · spalledGEARSHAFT IN GEARBOX HAS SPALLING ON GEARTEETH.SDR HEEA077551Bearing · spalledGEAR HAS SPALLING ON BALL BEARING.SDR ALG2002F00001Connector · looseDURING RUN UP CHECKS. CONNECTOR PLUGS FOUND LOOSE IN THE NR 1 ENGINE INTAKE.SDR ALG2002F00004Wire · brokenDURING RUN UP, BROKEN WIRE AT CONNECTOR PLUG IN BAGGAGE COMPARTMENT.SDR ALG2001F00034Connector · loosePRESTART CHECK. NR 1 ENGINE FIRE DETECTION SYSTEM WILL NOT TEST. CIRCUIT BREAKER FOUND POPPED, LOOSE CONNECTION IN T HANDLE FOR BULBS.SDR HEEA076948Lead · frayedFRAYED AND WORN. REPLACED WITH SERVICEABLE PART.SDR HEEA076949Igniter · frayedFRAYED AND WORN. REPLACED WITH SERVICEABLE PART.SDR HEEA076950Igniter · damagedINOPERATIVE - WILL NOT FIRE. CENTER ELETRODE CAME OUT. REPLACED WITH SERVICEABLE PART.
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