Allison 250-C20B

Service difficulty reports · 1,981

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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 = '250C20B'
  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 96ZZZX2538Engine Assy · making metalPILOT NOTED A HIGH PITCH WHINE EMANATING FROM THE ENGINE AREA. A VISUAL INSPECTION WAS PERFORMED OF THE ENGINE AND DRIVE TRAIN AREAS. NO DEFECTS NOTED. THE ENGINE CHIP PLUGS WERE INSPECTED. NO METAL NOTED. APPROX 1.50 HRS AFTER INSPECTION, ENGINE CHIP LIGMar 19, 1996 · N122NH · Bell 206L · Turbine SectionSDR CA960404010Control Tube · corroded(CAN) DURING ANNUAL INSPECTION SLIGHT BULGING AND PITTING FOUND ON THROTTLE CONTROL TUBE. DURING FURTHER INSPECTION THE TUBE BROKE. THE INTERIOR OF THE TUBE WAS FILLED WITH CORROSION AND THE THICKNESS OF THE TUBE WAS EXTREMELY THIN AT THE BRAKE AREA.Mar 14, 1996 · Bell 206B · Power LeverSDR CA960315005Governor · worn(CAN)REMOVED N2 GOVERNOR TO TROUBLESHOOT TORQUE/N2 HUNTING. SPLINED ADAPTER FOUND LOOSE, CLOSER OBSERVATION SHOWED C-CLIP MISSING AND INNER SPLINES SEVERELY WORN.Mar 8, 1996 · Turbine GovernorSDR ERAA96211Pt Support · pittedP T SUPPORT OVERHAULED AND RET'D TO ERA 6/23/95. UPON RECEIVING , INSPECTOR FOUND LARGE PIT IN AREAA11:00 OIL NOZZLE STRUT.Mar 8, 1996 · Bolkms BO105S · Turbine SectionSDR 96ZZZX2597Governor · crackedDURING A DAILY INSPECTION, MECHANIC FOUND GOVERNOR WITH .75 INCH CRACK AT AREA OF INPUT LEVER BUSHING. GOVERNOR WAS REMOVED AND REPLACED. THESE GOVERNORS HAVE A 2,000-HOUR OVERHAUL. ENGINE HAD BEEN OPERATING NORMALLY.Mar 7, 1996 · N211WP · Bell 206B · Turbine GovernorSDR ERAA96208Nozzle · mis ohauledNOZZLE SENT TO OVERHAUL . FLANGE NOT MACHINED TO PROPER DIMENSION CAUSING NOZZLE NOT TO SEAT PROPERLY ON THE SUPPORT DURING INSTALLATION.Mar 5, 1996 · N154EH · Bolkms BO105S · Turbine SectionSDR CA960502019Switch · low pressure(CAN) WHEN BOOST PUMP TURNED OFF, THE CAUTION LIGHT WOULD NOT COME ON FOR FUEL PRESSURE.Mar 2, 1996 · Bell 206L · Fuel Indicating SystemSDR ERAA96205Wheel · blade stretchBLADE STRETCH .005 OVER PRINT SIZE.Mar 1, 1996 · N125EH · Bolkms BO105S · Turbine SectionSDR ERAA96207Nozzle · mis ohaulNOZZLE REC'D BACK FROM OVERHAUL. ROPE PACKING GROOVE IN OUTER BAND TOO NARROW TO SEAT ROPE.Mar 1, 1996 · N299EH · Bolkms BO105S · Turbine SectionSDR CA960311036Washer · leaking(CAN)FUEL LEAK CAUSED BY SEALING WASHER ON BANJO FITTING NOT PROPERLY SEALING.Feb 28, 1996 · Engine Fuel DistributionSDR CA960502014Cyclic Tube · cracked(CAN) DYE PENETRANT INSPECTION REVEALED A SMALL CRACK IN UPPER MOUNTING BOLT SLOT. R/H SIDE OF OUTER TUBE.Feb 28, 1996 · Bell 206L · Main Rotor ControlSDR CA960502008Fcu · failure(CAN) DURING CRUISE FLIGHT, A TEMPORARY FLAMEOUT OCCURRED. AFTER 3-4 SECONDS, ENGINE CAME BACK ON LINE. FCU WAS REPLACED. TIME SINCE LAST REPAIR IS 189.3 HOURS. THE SUBMITTER STATES THAT THIS PARTICULAR FCU HAS A HISTORY OF PREMATURE REMOVALS.Feb 26, 1996 · Bell 206L · Fuel Control/Turbine EnginesSDR ERAA96200Heat Shield · cracked band#1 HEAT SHIELD HAS 522.4 HRS ON IT AND HAS A CRACKED OUTER BAND.Feb 26, 1996 · N126EH · Bolkms BO105S · Turbine SectionSDR CA960312032Fcu · failure(CAN) TIME THIS INSTALLATION SINCE LAST REPAIR 189.3 HOURS. IN FLIGHT EXPERIENCED A TEMPORARY FLAMEOUT. AFTER 3-4 SECONDS, ENGINE AND ROTOR SPEEDS BACK UP TO NORMAL. FLIGHT RESUMED TO BASE WITHOUT FURTHER INCIDENT. PAST HISTORY OF THIS FCU IS ONE OF MANY PFeb 25, 1996 · Bell 206L · Fuel Control/Turbine EnginesSDR 96ZZZX1163Governor · erraticPILOT COMPLAINED MANUAL BEEPING WAS REQUIRED FOR TAKEOFF, POWER CHANGES, AND LANDING. GOVERNOR UNIT REPLACED AND SENT IN FOR REPAIR.Feb 23, 1996 · N5074R · Hughes 369D · Turbine GovernorSDR CA960312024Blade · debonding(CAN)LEADING EDGE ABRASION STRIP DEBONDING. BLADE P/N 369D21100-516A. TIME THIS INSTALLATION 589.8 HOURS.Feb 23, 1996 · Hughes 369D · Main Rotor BladesSDR CA960312025Blade · debonding(CAN)LEADING EDGE ABRASION STRIP DEBONDING. TIME THIS INSTALLATION 589.8 HOURS.Feb 23, 1996 · Hughes 369D · Main Rotor BladesSDR CA960312026Blade · debonded(CAN)LEADING EDGE ABRASION STRIP DEBONDED.Feb 23, 1996 · Hughes 369D · Main Rotor BladesSDR CA960312027Blade · debonding(CAN)LEADING EDGE STRIP DEBONDED.Feb 23, 1996 · Hughes 369D · Main Rotor BladesSDR ERAA96198Labyrinth Seal · mis mfgBEARING BORE OVER MAX DIMENSION.Feb 23, 1996 · N125EH · Bolkms BO105S · Turbine SectionSDR ERAA96199Nozzle Vane · crackedNR 1 NOZZLE VANES CRACKED.Feb 23, 1996 · N126EH · Bolkms BO105S · Turbine SectionSDR ERAA96197Nozzle · crackedNOZZLE WAS OVERHAULED ON DALLAS AIRMOTIVE W/O F1329, HAS 426.7 TSO AND VANES ARE CRACKED & BURNED.Feb 22, 1996 · N149EH · Bolkms BO105S · Turbine SectionSDR 96ZZZX1156Tube Assy · mismanufacturedIN AN ATTEMPT TO C/W ALLISION CEB-A-1323 INSTALLATION OF NEW SCROLL-TO-PC FILTER TUBE, FOUND NEW TUBE ASSY MISSED FITTING THE FLARES BY .350 INCH. DISTORTION OR STRETCHING OF THE PC FILTER-TO-GOVERNOR TUBE ASSY WOULD BE NEEDED TO INSTALL THE NEW TUBE AS THE FFeb 21, 1996 · N5238C · Hughes 369E · Turbine GovernorSDR ERAA96193Nozzle · cracked#1 NOZZLE HAS CRACKED VANE TRAILING EDGES.Feb 21, 1996 · N125EH · Bolkms BO105S · Turbine SectionSDR ERAA96194Seal · damagedBELLOWS SEAL HAS CHIPS ON SEAL FACE.Feb 21, 1996 · N125EH · Bolkms BO105S · Turbine SectionSDR ERAA96195Heat Shield · crackedOUTER BAND OF #1 HEAT SHIELD IS CRACKED.Feb 21, 1996 · N125EH · Bolkms BO105S · Turbine SectionSDR ERAA96196Nozzle · crackedNOZZLE WAS OVERHAULED ON AVIALL W/O C67134 . NOZZLE HAS CRACKS IN SADDLE AREAS.Feb 21, 1996 · N149EH · Bolkms BO105S · Turbine SectionSDR 96ZZZX1021Nozzle · burnedNR 1 NOZZLE WAS REPLACED DUE TO EROSION AND CRACKING BEYOND LIMITS. NOZZLE SENT IN FOR OVERHAUL.Feb 20, 1996 · N5074R · Hughes 369D · Fuel Injector NozzleSDR 96ZZZX1024Shield · warpedDURING REPLACEMENT OF NR 1 TURBINE NOZZLE, THE NOZZLE SHIELD WAS FOUND WARPED OUT OF SHAPE. PART SENT IN FOR OVERHAUL.Feb 20, 1996 · N5074R · Hughes 369D · Turbine SectionSDR CA960312031Transceiver · static(CAN)B SIDE OF RADIO DID NOT WORK FROM INITIAL INSTALLATION, UNIT HAD VERY BAD STATIC ALSO. 23.6 HOURS SINCE OVERHAUL.Feb 19, 1996 · Hughes 369D · VHF Communications SystemSDR 96ZZZX1020Case Half · erodedDURING ANNUAL INSPECTION, THE COMPRESSOR CASE HALVES WERE FOUND ERODED BEYOND LIMITS. CASE HALVES WERE REMOVED AND SENT IN FOR OVERHAUL.Feb 16, 1996 · N5074R · Hughes 369D · Turbine Engine Compressor SectionSDR 96ZZZX1802Engine · making metalHEAVY METAL CONTAMINATION ON UPPER AND LOWER CHIP PLUGS. METAL FOUND IN NICAD EXTERNAL OIL FILTER ALSO. ALL CONTAMINATION WAS FERROUS METAL.Feb 14, 1996 · N781LL · Bell 206L · Engine (Turbine/Turboprop)SDR 96ZZZX1170Governor · erraticDURING RUN-UP, PILOT WAS ADJUSTING ENGINE 'BEEP' AND THE GOVERNOR HESITATED, BUT WHEN AN INCREASE WAS NOTED, IT JUMPED UP 3 PERCENT TO 4 PERCENT AND WAS NOT A SMOOTH TRANSITION. PART SENT IN FOR REPAIR.Feb 11, 1996 · N5074R · Hughes 369D · Turbine GovernorSDR 96ZZZX994Governor · failGOVERNOR SHAFT FAILED. REPLACED GOVERNOR.Feb 9, 1996 · N5059C · Bolkms BO105S · Turbine GovernorSDR CA960312023Exciter · intermittent(CAN)INTERMITTENT OPERATION, SUSPECT LOOSE INTERNAL COMPONENT AS EXCITER WORKS FOR 3-5 SECONDS IF TAPPED.Feb 9, 1996 · Hughes 369D · ExciterSDR HEEA966641Servomotor · inoperativeSERVO MOTOR INOPERATIVE.Feb 5, 1996 · Bolkms BO105S · Engine Anti-Icing SystemSDR 96ZZZX1169Sump · warpedDURING ANNUAL INSPECTION, NR 6 AND NR 7 BEARING SUMP ON THE TURBINE FOUND LEAKING AT THE MATING SURFACE. SUBSEQUENT INSPECTION REVEALED FLANGE WAS WARPED.Feb 2, 1996 · N5074R · Hughes 369D · Turbine Engine Oil SystemSDR 96ZZZX4829Labyrinth Seal · fracturedTURBINE WAS REMOVED DUE TO RUB. UPON DISASSEMBLY, FOUND THE GP STATOR SEAL HAD FRACTURED AT THE FORWARD END OF THE BEARING BORE. THIS TURBINE HAD THE NEW NR 8 BEARING AND RETAINING PLATE INCORPORATED PER CEB 1326. CAUSE OF FAILURE UNKNOWN.Feb 2, 1996 · Turbine SectionSDR CA960312008Engine · making metal(CAN) METAL CONTAMINATION FOUND IN OIL TANK AND ON ENGINE CHIP DETECTORS. ENGINE ASSEMBLY AND OIL COOLER REPLACED. HELICOPTER RETURNED TO SERVICE.Feb 2, 1996 · Bell 206L · Engine (Turbine/Turboprop)SDR CA960312010Housing · loose stud(CAN)FORWARD HOUSING ASSEMBLY P/N 206-040-236-013 HAS A STUD P/N AN125982 PULLING OUT.Feb 2, 1996 · Bell 206L · Engine/Transmission CouplingSDR 96ZZZX1023Chip Plug · leakingDURING REMOVAL OF COMPRESSOR, CHIP PLUG FOUND LEAKING PAST THE INSULATOR. REPLACED CHIP PLUG.Jan 26, 1996 · N5074R · Hughes 369D · Turbine Engine Compressor SectionSDR CA960312014Tachometer · sticking(CAN)GAUGE STICKS AT LOW TEMPERATURE (-25 TO -40 DEGREES). GAUGE WORKS NORMALLY IF HEAT APPLIED TO GAUGE.Jan 23, 1996 · Hughes 369D · Engine RPM Indicating SystemSDR 96ZZZX1080Rod End · stiffDURING ANNUAL INSPECTION, THE ROD ENDS FROM THE GOVERNOR THROTTLE SHAFT TO THE BELLCRANK WERE FOUND EXTREMELY STIFF WITH SOME TEFLON RESIDUE COMING FROM THE ROD ENDS. REPLACED PARTS.Jan 20, 1996 · N4571V · Hughes 369D · Turbine GovernorSDR HEEA966477Shaft · frettedENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADJan 19, 1996 · N967MB · Bolkms BO105S · Turbine Engine Compressor SectionSDR HEEA966478Spline Adapter · frettingENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADJan 19, 1996 · N967MB · Bolkms BO105S · Turbine Engine Compressor SectionSDR HEEA966479Spiral Lock Ring · dislodgedENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADJan 19, 1996 · N967MB · Bolkms BO105S · Turbine Engine Compressor SectionSDR HEEA966480Bearing · defectiveENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADJan 19, 1996 · N967MB · Bolkms BO105S · Turbine Engine Compressor SectionSDR HEEA966481Coupling · defectiveENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADJan 19, 1996 · N967MB · Bolkms BO105S · Turbine Engine Compressor SectionSDR HEEA966482Tube Assy · leakingENGINE REMOVED DUE TO OIL LEAKING AT GEARBOX SPLIT LINE. UPON INSPECTION OF GEARBOX PARTS NOTED THE FOLLOWING: OIL TRANSFER TUBE FAILED DIMENSIONAL CHECK IN ACCORDANCE WITH CEB1307. INSTALLED A NEW OIL TUBE ASSY.Jan 19, 1996 · N5421E · Bolkms BO105S · Turbine Engine Reduction GearSDR HEEA966490Pump · defectiveSTATOR INSULATION COVERING WINDINGS HANGS OVER LIP OF HOUSING AND CANNOT BE ASSEMBLED ON PUMP.Jan 19, 1996 · Engine Fuel Pump
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