Allison 250-C30P

Service difficulty reports · 646

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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 = '250C30P'
  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 HEEA968395Bearing · making metalENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF GEARBOX PARTS NOTED: (1) METAL SLIVERS ON #3 BEARING INNER RACE (2) CRACKED ROLLER RETAINER & METAL SLIVERS ON #4 BEARING INNER RACE. INSTALLED NEW BEARINGS. SEE MMIR# HEEA0008395 FOR #4 BEARING INFORMOct 23, 1996 · N129MR · Bell 206L3 · Turbine Engine Accessory DriveSDR CA961203008Bearing Race · rough(CAN) DURING INSPECTION OF TAIL ROTOR, A ROUGH, RATCHETING FEELING WAS NOTICED. FURTHER INSPECTION REVEALED THAT THE INNER BEARING RACE WAS CRACKED.Sep 25, 1996 · Bell 206L3 · Tail Rotor HeadSDR 96ZZZX5449Nozzle Shield · elongated holesUPON DISASSEMBLY OF THE TURBINE FOR REPLACEMENT OF THE FIRST STAGE NOZZLE, FOUND FRETTING WEAR ON THE SHEATHS OF THE TOT HARNESS PROBES, AND ELONGATED HOLES IN THE THIRD STAGE NOZZLE SHIELD WHERE THE PROBES PASS THROUGH. TOT HARNESS REQUIRED REPLACEMENT.Sep 23, 1996 · Turbine SectionSDR 96ZZZX5450Harness · frettedUPON DISASSEMBLY OF THE TURBINE FOR REPLACEMENT OF THE FIRST STAGE NOZZLE, FOUND FRETTING WEAR ON THE SHEATHS OF THE TOT HARNESS PROBES, AND ELONGATED HOLES IN THE THIRD STAGE NOZZLE SHIELD WHERE THE PROBES PASS THROUGH. TOT HARNESS REQUIRED REPLACEMENT.Sep 23, 1996 · Engine EGT/TIT Indicating SystemSDR CA960924022Blade · separation(CAN) SKIN SEPARATION FROM LEADING EDGE OF BOTH BLADES.Sep 16, 1996 · Bell 206L4 · Tail Rotor BladesSDR HEEA967786Gear · defectiveRECEIVING INSPECTION REVEALED: SERIAL NUMBER ON SPUR GEAR DOES NOT MATCH NUMBER ON BOX. REPLACED DISCREPANT PART.Sep 6, 1996 · Turbine Engine Compressor SectionSDR HEEA967643Liner · defectiveCOMBUSTION LINER REMOVED FROM TURBINE DUE TO -2 LOW POWER ON TEST CELL. TURBINE PRODUCED +1.6 WITH OH REPLACEMENT LINER. REPLACED DISCREPANT PART.Aug 13, 1996 · N8588X · Bell 206L3 · Turbine Engine Combustion SectionSDR HEEA967645Shroud Housing · distortedCOMPRESSOR DISASSEMBLED DUE TO LOW POWER ON TEST CELL (-11.1). UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: DISTORTED FINISH ON SHROUD HOUSING COATING AS MARKED. (NOTE: ENGINE POWER +1.6 WITH OH REPLACEMENT PART) REPLACED DISCREPANT PART.Aug 13, 1996 · N8588X · Bell 206L3 · Turbine Engine Compressor SectionSDR HEEA967630Gearshaft · mis mfgUPON INSPECTION OF PART NOTED THE FOLLOWING: IMPROPERLY FINISHED MACHINING ON GEARSHAFT FWD ID FACE AS MARKED. REPLACED DISCREPANT PART.Aug 8, 1996 · N6610L · Bell 206L3 · Turbine Engine Accessory DriveSDR 96ZZZX4842Drive Shaft · wornDURING DISASSEMBLY FOR OVERHAUL, FOUND WORN DRIVESHAFT SPLINES (SMALL END) AND WORN INTERNAL GEAR SPLINE. (PARTS SCRAPPED). SUSPECT IMPROPER LUBRICATION.Jul 19, 1996 · N170AL · Bell 206L4 · Engine Fuel PumpSDR 96ZZZX3413Bearing · failedTHE ENGINE CHIP DETECTOR LIGHT ILLUMINATED IN CRUISE FLIGHT OVER THE GULF OF MEXICO. THE PILOT LANDED THE HELICOPTER ON NEAREST OFFSHORE PLATFORM, APPROXIMATELY 7 MILES AWAY. MAINTENANCE INSPECTED THE CHIP DETECTOR PLUGS AND FOUND THE LOWER PLUG COVERED WITHMay 15, 1996 · N177AL · Bell 206L4 · Turbine Engine Reduction GearSDR HEEA967091Seal · bore oversizeUPON INSPECTION OF PART FOUND THE #5 STATIONARY LAB SEAL BORE I.D. .006 OVERSIZE.May 2, 1996 · Turbine SectionSDR 96ZZZX2934Seal · leakingDURING FLIGHT, THE TRANSMISSION PRESSURE CAUTION LIGHT ILLUMINATED. THE PRESSURE GAUGE INDICATED 30 PSI. DURING FINAL APPROACH, PRESSURE DROPPED TO 20 PSI AND TO 10 PSI DURING HOVER. UPON LANDING, PRESSURE RETURNED TO 25 PSI. AIRCRAFT WAS INSPECTED AND THEApr 23, 1996 · N177AL · Bell 206L4 · Turbine Engine Reduction GearSDR CA960507018Indicator · not indicating(CAN)PILOT REPORTED ENGINE OUT HORN AND ENGINE OUT LIGHT. NG TACH INDICATOR NOT INDICATING. ALL OTHER GAUGES READING NORMAL.Apr 23, 1996 · Bell 206L1 · Engine RPM Indicating SystemSDR 96ZZZX2598Tube Assy · chafedFREEWHEEL RETURN HOSE CHAFED THROUGH ENGINE OIL PRESSURE TUBE CAUSING OIL TO LEAK ONTO DECK. PRECAUTIONARY LANDING MADE, LINE REPLACED AND RETURNED AIRCRAFT TO SERVICE.Apr 10, 1996 · N617DE · Bell 206L3 · Turbine Engine Oil SystemSDR HEEA966862Gearshaft · stepwearENGINE REMOVED DUE TO CRACKED COMPRESSOR SCROLL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: SPLINE STEP WEAR BEYOND OVERHAUL LIMITS ON SPUR ADAPTER GEARSHAFT AFT TURBINE SPLINES. NEW PART INSTALLED.Mar 20, 1996 · N8589X · Bell 206L3 · Turbine Engine Compressor SectionSDR 96ZZZX2802Shear Pin · failedPILOT NOTED A HIGH PITCH WHINE EMANATING FROM ENGINE AREA. A VISUAL INSPECTION WAS PERFORMED OF THE ENGINE AND DRIVE TRAIN AREAS. NO DEFECTS NOTED. ENGINE CHIP PLUGS WERE INSPECTED. NO METAL NOTED. APPROXIMATELY 1.50 HOURS AFTER INSPECTION, THE ENGINE CHIMar 19, 1996 · N122NH · Bell 206L · Turbine SectionSDR HEEA966759Pump · worn excessFUEL PUMP IS WORN EXCESSIVELY. (WORN INTERNAL SPLINES)Feb 28, 1996 · N41128 · Bell 206L3 · Engine Fuel PumpSDR HEEA966689Fuel Pump · wornFUEL PUMP WORN INTERNAL SPLINES.Feb 12, 1996 · N41128 · Bell 206L3 · Engine Fuel PumpSDR HEEA966680Shield · defectiveUPON INSPECTION PER CEBA-72-3208 OF DALLAS AIRMOTIVE OH #1 NOZZLE SHIELD, NOTED THE FOLLOWING: DOME FAILED CHEMICAL CHECK.Feb 9, 1996 · N8591X · Bell 206L3 · Turbine SectionSDR 96ZZZX2357Scavenge Tube · bracket brokenUPON DISASSEMBLY OF GEARBOX, REMOVED OIL PUMP ASSY, AND SCAVENGE TUBE. FOUND ALIGNMENT BRACKET ON SCAVENGE TUBE BROKEN. ALIGNMENT BRACKET AT LOWER END OF SCAVENGE TUBE WAS FOUND BROKEN AT WELD AREA. SUSPECT CAUSE IS DUE TO IMPROPER FIT ON ALIGNMENT BRACKETSFeb 7, 1996 · N366AL · Bell 206L3 · Turbine Engine Reduction GearSDR CA960129022Seal · unseats(CAN)WHILE GREASING HEAD THE SEAL BECOME DISLODGED AND MOVE INBOARD, AND HAVE TO BE RESEATED.Jan 11, 1996 · Bell 206L4 · Main Rotor HeadSDR HEEA966375Bearing · crackedENGINE REMOVED DUE TO CRACKED SCROLL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 2 EACH CRACKS IN SEPERATOR ON #1 ROLLER BEARING AND WORN TANGS AND TANGSLOTS ON CARBON SEAL ASSEMBLY. NEW PARTS INSTALLED. REFERENCE: AFA#24453A. NOTE: SEE MMIRJan 8, 1996 · N8589X · Bell 206L3 · Turbine Engine Compressor SectionSDR HEEA966376Carbon Seal · worn tangsENGINE REMOVED DUE TO CRACKED SCROLL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 2 EACH CRACKS IN SEPERATOR ON #1 ROLLER BEARING AND WORN TANGS AND TANGSLOTS ON CARBON SEAL ASSEMBLY. NEW PARTS INSTALLED.REFERENCE: AFA#24453A. NOTE: SEE MMIR#Jan 8, 1996 · N8589X · Bell 206L3 · Turbine Engine Compressor SectionSDR HEEA956224Spline Adapter · mis mfgRECEIVING INSPECTION OF NEW, NEVER INSTALLED SPLINE ADAPTER INDICATED I.D. MANUFACTURED .0005" OVER MAX B.P. SPECS OF .6565". ADAPTER MEASURES .657. INSTALLED NEW SPLINE ADAPTER. SHIPMENT OF PART AND SUBMITTAL FOR CREDIT ACCOMPLISHED ON AFA# 24444A.Dec 12, 1995 · N206FS · Bell 206L3 · Turbine SectionSDR HEEA956157Gearshaft · stepwearENGINE REMOVED DUE TO TURBINE OVERHAUL AND COMPRESSOR 1750 HOUR INSPECTION. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: STEP WEAR BEYOND LIMITS ON SPUR ADAPTER GEARSHAFT FORWARD AND AFT SPLINES. NEW PART INSTALLED.Nov 29, 1995 · N8592X · Bell 206L3 · Turbine Engine Compressor SectionSDR 96ZZZX106Pc Tube Assy · b-nut burredDURING REMOVAL OF LINE TO C/W ENGINE POWER RECOVERY WASH. NOTICED THE B-NUT WAS HARD TO TURN WHEN REMOVING THE LINE. B-NUT THREADS BURRED.Nov 14, 1995 · N176AL · Bell 206L4 · Turbine Engine Compressor SectionSDR 95ZZZX7042Pump · inoperativeFUEL PUMP INOP. REPLACED WITH NEW FUEL PUMP.Oct 31, 1995 · N64050 · Bell 206L4 · Engine Fuel PumpSDR HEEA955925Bearing · crackedENGINE REMOVED DUE TO TURBINE OVERHAUL AND COMPRESSOR 1750 HOUR INSPECTION. UPON DISASSEMBLY OF #1 BEARING AREA DUE TO OIL LEAK NOTED THE FOLLOWING: #1 BEARING FAILURE. FOUND 75% OF SEPERATOR CRACKED AFT OF CENTERING TAB; WITH BREAK OUT OF 40%FWD RING. SCRAOct 27, 1995 · N8588X · Bell 206L3 · Turbine Engine Compressor SectionSDR HEEA955926Bearing Housing · crackedENGINE REMOVED DUE TO TURBINE OVERHAUL AND COMPRESSOR 1750 HOUR INSPECTION. UPON DISASSEMBLY OF #1 BEARING AREA DUE TO OIL LEAK NOTED THE FOLLOWING: #1 BEARING FAILURE. FOUND 75% OF SEPERATOR CRACKED AFT OF CENTERING TAB; WITH BREAK OUT OF 40%FWD RING. SCRAOct 27, 1995 · N8588X · Bell 206L3 · Turbine Engine Compressor SectionSDR 96ZZZX979Nozzle · defectiveFUEL NOZZLE 'ERRATIC SPRAY PATTERN'.Oct 16, 1995 · N732H · Bell 206L3 · Fuel Injector NozzleSDR 95ZZZX4504Wheel · crackedDURING INSPECTION OF FIRST STAGE NOZZLE, FOUND FIRST STAGE WHEEL CRACKED AT THE INNER RING. CRACK PROGRESSES TOWARD THE SPLINED SHAFT. THIS HAS BEEN THE FIRST OCCURRENCE OF FIRST STAGE TURBINE WHEEL BEING CRACKED AT THIS LOCATION.Jul 26, 1995 · N121NH · Bell 206L · Turbine SectionSDR 95ZZZX5473Scroll · foreign objectUPON AIR LOGISTICS BORESCOPE INSPECTION, FOUND CERAMIC BEAD LODGED IN AIR SLOT ON INTERNAL PART OF SCROLL.Jul 24, 1995 · N359AL · Bell 206L3 · Turbine Engine Compressor SectionSDR HEEA955057Coupling · stepwearENGINE REMOVED DUE TO TURBINE OVERHAUL AND COMPRESSOR 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: STEP WEAR BEYOND LIMITS ON N1 COUPLING I.D. SPLINES. INSTALLED NEW N1 COUPLING.May 23, 1995 · N2135V · Bell 206L1 · Turbine SectionSDR 95ZZZX2784Compressor · contaminatedDURING A COMPRESSOR CHANGE FOUND WHILE POSITIONING THE COMPRESSOR ON A WORK BENCH, A SMALL WHITE HARD BEAD ROLLED OUT OF THE SCROLL DISCHARGE TUBE. THE COMPRESSOR SCROLL WAS BORESCOPED TO CHECK FOR ANY MORE BEADS WHICH MAY HAVE BEEN LODGED IN THE SCROLL. NO May 22, 1995 · N343AL · Bell 206L3 · Turbine Engine Compressor SectionSDR 95ZZZX3335Bleed Valve · failedSHORTLY AFTER TAKEOFF, PILOT REPORTED ENGINE COMPRESSOR STALL. LANDED ON OFFSHORE PLATFORM WITHOUT INCIDENT. FOUND BLEED VALVE STUCK IN OPEN POSITION. ALLISON 250-C30 IPC, CHAPTER 75, SECTION 10-00, FIGURE 5, ITEM 1J.May 15, 1995 · N6610Y · Bell 206L3 · Compressor Bleed ValveSDR EKGA9520837Shaft Seal · leakingSTARTER DRIVE SEAL IS LEAKING.May 5, 1995 · N303PS · Bell 230 · Turbine Engine Oil SystemSDR HEEA954916Bearing · defectiveENGINE REMOVED FOR MODIFICATION. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: PULLER GROOVE MISSING ON #8 BEARING. INSTALLED NEW #8 BEARING.May 4, 1995 · Skrsky S76A · Turbine SectionSDR 95ZZZX2785Gearshaft · pittedUPON DISASSEMBLY AND INSPECTION, FOUND AIR OIL GEARSHAFT PITTED.May 2, 1995 · N343AL · Bell 206L3 · Turbine Engine Accessory DriveSDR GCHA957Compressor · crackedREMOVED COMPRESSOR DUE TO CRACKED COMPRESSOR SCROLL AND LOW POWER. REMOVED COMPRESSOR S/N CAC-90608, AND REPLACED IT WITH COMPRESSOR S/N CAC-90095.Apr 13, 1995 · N4227E · Bell 206L1 · Turbine Engine Compressor SectionSDR HEEA954611Governor · defectiveON TAKEOFF, N1, N2 AND ROTOR FLUCTUATIONS -- OVERTORQUE EXCEEDING 120%. REPLACED WITH SERVICEABLE GOVERNOR AND PERFORMED OVERTORQUE INSPECTION.Mar 23, 1995 · N6160Z · Bell 206L3 · Turbine GovernorSDR 95ZZZX2472Fuel Control · defectivePART WAS ZERO TSO, COULD NOT ADJUST START ADJUSTMENT FOR A COOL ENOUGH START EVEN AT LOWEST SETTINGS.Mar 7, 1995 · N133AL · Bell 206L3 · Fuel Control/Turbine EnginesSDR HEEA954468Pump · leakingLEAKING. REPLACED WITH SERVICEABLE OIL PUMP.Mar 1, 1995 · N2125M · Bell 206L1 · Main Rotor GearboxSDR HEEA954406Nozzle · defectiveENGINE REMOVED DUE TO N2 DRAG. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: LIFTING AND FLAKING PLASMA IN 4TH STAGE NOZZLE #4 TIP PATH. INSTALLED SERVICEABLE 4TH STAGE NOZZLE.Feb 23, 1995 · N6160Z · Bell 206L3 · Turbine SectionSDR 95ZZZX1138Mount Assy · mismanufacturedMOUNT FACE TO MOUNT BOSS HEIGHT LIMITS ARE 1.715 INCHES TO 1.707 INCHES IN THE O/H MANUAL. THIS MOUNT MEASURED 1.770 INCHES TO 1.730 INCHES. THE MISALIGNMENT DAMAGED THE SPUR ADAPTER, GEAR SHAFT, COUPLING ADAPTER, AND IMPELLER BORE.Feb 21, 1995 · Turbine Engine Compressor SectionSDR HEEA954339Gearshaft · step wearENGINE REMOVED DUE TO 1750 HOUR OVERHAUL AND INSPECTION. UPON INSPECTTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: STEPWEAR BEYOND LIMITS ON SPUR ADAPTER GEARSHAFT FORWARD AND AFT SPLINES. INSTALLED NEW SPUR ADAPTER GEARSHAFT.Feb 14, 1995 · N8587X · Bell 206L3 · Turbine Engine Compressor Section
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