JASC 7250

Service difficulty reports · 3,625

Reports filed under 7250 · Turbine Section, newest first.

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 jasc_code = '7250'
  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 99ZZZX3682Turbine Rotor · wornAT DISASSEMBLY FOR MAJOR PERIODIC INSPECTION. NOTED RUB ON FORWARD FACE OF LPT ROTOR IN ONE AREA OF THE ROOT SURFACE. FOUND 3RD STAGE LPT SEAL CAUSE OF RUB. ALLIED SIGNAL HAS SUBMITTED SB 72-3654 FOR REWORK OF 3RD STAGE LPT SEAL TO CORRECT PROBLEM. LAST HOTSep 2, 1999 · N745TS · Hwksly DH125400ASDR HEEA063857Nozzle Shield · crackedENGINE REMOVED DUE TO 1,750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED DOME ON NR 1 NOZZLE SHIELD. INSTALLED NEW PART.Aug 31, 1999 · N137AE · Bolkms BO105SSDR HEEA063856Nozzle Shield · crackedENGINE REMOVED DUE TO N1 DRAG. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED DOME ON NR 1 NOZZLE SHIELD. INSTALLED NEW PART.Aug 31, 1999 · N967MB · Bolkms BO105SSDR HEEA063855Nozzle · crackedENGINE REMOVED DUE TO 3,500 HOUR OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED VANES ON NR 1 NOZZLE. INSTALLED NEW PART.Aug 31, 1999 · N4573B · Bolkms BO105SSDR HEEA063854Nozzle · crackedENGINE REMOVED DUE TO CRACKED EXHAUST COLLECTOR. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED VANES ON NR 1 NOZZLE. INSTALLED NEW PART.Aug 31, 1999 · N5007Y · Bell 206L1SDR 99ZZZX3723Blade · failedTHIS IS A FOLLOW-UP REPORT FROM THE PT BLADE FAILURE ON THE LEFT SIDE OF 58DD. THE ENGINE MODULE HAS BEEN CHANGED AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.Aug 24, 1999 · N58DD · Stbros SD330SDR AALA991253Turbine · failedMIA - FLT 1381 - DURING GO-AROUND FOR LANDING AT MIA, NR 2 ENGINE FAILED AND SPOOLED DOWN. RE-START WAS NOT ATTEMPTED. AIRCRAFT LANDED MIA WITHOUT INCIDENT. REPLACED NR 2 ENGINE. PERFORMED ENGINE RUN-UP. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)Aug 21, 1999 · N7550 · Doug DC982SDR 99ZZZX4071Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 20, 1999 · N117CW · Bolkms BK117A4SDR ERAA064355Shaft · mismanufacturedNEW OUTER SHAFT HAS UNDERSIZE NR 5 BEARING JOURNAL.Aug 19, 1999 · N291EH · Bolkms BO105SSDR AU990830Turbine Blade · separated(AUS) LEFT ENGINE LOW PRESSURE TURBINE BLADE SEPARATED. REMAINING BLADES AND GUIDE VANES DAMAGED.Aug 19, 1999 · Fokker F28MK4000SDR HEEA063668Seal · chippedENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED: PITS AND CHIPPING ON CARBON SEAL MATING SURFACE. INSTALLED NEW CARBON SEAL.Aug 17, 1999 · N5421E · Bolkms BO105SSDR HEEA063665Bearing Cage · damagedNEW PART ASSEMBLY INSPECTION REVEALED EXCESSIVE BEARING BORE RUN-OUT ON NR 8 BEARING CAGE INSTALLED IN SUPPORT AND UNINSTALLED. INSTALLED NEW BEARING CAGE.Aug 17, 1999 · N4302G · Bolkms BO105SSDR 99ZZZX3386Nut · crackedREAR TURBINE NUT PN 865082-1 WAS REMOVED AND FOUND TO HAVE GALLED THREADS AND CRACKS IN THE THREADS. THIS ENGINE HAS 596.0 HOURS SINCE OVERHAUL. TURBINE NUT APPEARS TO HAVE BEEN RE-USED. SUBMITTER STATED THESE NUTS SHOULD BE A ONE-TIME USE ONLY.Aug 17, 1999 · N227TT · Swrngn SA227TTSDR RAIA990813Seal · failedFLT 7461 - BHM - RIGHT OIL PRESS LOW. SHUT DOWN ENGINE. MAINTENANCE REPLACED REAR TURBINE BEARING AIR/OIL SEAL. (M)Aug 13, 1999 · N574HK · Jetair JETSTM4101SDR HEEA063071Nozzle · crackedENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED VANE CRACKS BEYOND SERVICEABLE LIMITS ON 1ST STAGE NOZZLE.Aug 13, 1999 · N5128 · Skrsky S76ASDR HEEA063070Nozzle · crackedENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED CRACKS BEYOND SERVICEABLE LIMITS ON 1ST STAGE NOZZLE VANES.Aug 13, 1999 · N1545X · Skrsky S76ASDR HEEA063069Wheel · mismanufacturedNEW NR 4 WHEEL BALANCE INSPECTION FOUND RIM TO HAVE EXCESSIVE RUNOUT. ROTOR COULD NOT BE BALANCED. INSTALLED A NEW NR 4 WHEEL.Aug 13, 1999SDR HEEA063068Nozzle · crackedENGINE REMOVED DUE TO CYCLED TURBINE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED CRACKS BEYOND SERVICEABLE LIMITS ON 1ST STAGE NOZZLE LEADING AND TRAILING EDGE VANES.Aug 13, 1999 · N3122G · Skrsky S76ASDR 99ZZZX3976Rotor Assy · wornUPON DISASSEMBLY OF ENGINE, 3RD LPT ROTOR ASSY, PN 3074097-1, SN 965332200333 ROTOR, TSN 1,309.6 HOURS, CSN, 921, WAS NOTED TO HAVE BEEN RUB-DAMAGED ON FORWARD SIDE OF ROTOR DISK JUST INSIDE OF BLADE RETENTION RIVET AREA (FIR TREE). DAMAGE APPEARS TO BE FROM Aug 9, 1999 · N881M · Amd FALCON50MYSTSDR 2000ZZZX772Blade · damagedEXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 6, 1999 · N424MB · Bolkms BK117A3SDR 2000ZZZX735Seal · damagedLABYRINTH SEAL EXCESSIVELY GROOVED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 28, 1999 · N528SF · Bolkms BK117A3SDR TSAA9977401Blade · failedNR 1 ENGINE EGT AT LIMIT ON START, RUNS 40-100 DEGREES ABOVE NR 2 DEPENDING ON FLT CONDITION. SECURED ENGINE AT 400 DEGREE BOROSCOPE FOUND NR 1 ENGINE T-1 DAMAGE BEYOND LIMITS. REMOVED AND REPLACED NR 1 ENGINE TEARDOWN FOUND FORWARD OCC CASE RETAINING BOLT SJul 27, 1999 · N726AL · Boeing 737297SDR CA990812002Turbine Vanes · bent(CAN) THE ENGINE WAS ON ITS SECOND TBO EXTENSION WHEN IT EXPERIENCED A TURBINE FAILURE AT 240 HOURS TIME REMAINING.Jul 27, 1999 · Bell 205A1SDR 20000712SH038Turbine Wheel · chafedSECOND OCCURRENCE OF 3RD STAGE LP TURBINE RUBBING FORWARD SIDE OF 3RD STAGE LPT SEAL. (X)Jul 26, 1999SDR 99ZZZX3506Turbine Disk · crackedPART PRESENTED CRACK ON RETAINING LUG AREA. OEM INVESTIGATION REQUESTED.Jul 22, 1999SDR 99ZZZX3327Stator · deflectedLPT3 STATOR DEFLECTED AFT ALLOWING THE HONEYCOMB SEAL RING TO RUB (CONTACT) THE LPT3 ROTOR FOUND DURING SCHEDULED MAINTENANCE. CAUSE FOR DEFLECTION UNKNOWN. REPLACED LPT3 STATOR AND LPT3 ROTOR ASSEMBLY.Jul 22, 1999SDR 20000712SH021Seal · crackedPART RECEIVED FOR FLUORESCENT PENETRANT INSPECTION PER SECTION 70-23-01, INSPECTION CHECK-01, TASK 70-23-01-230-501, IAW INTERNATIONAL AERO ENGINE V2500 PROPULSION SYSTEM ENGINE MANUAL, REV. 38. PART REJECTED AT F.P.I. DUE TO CRACK 0.3580 INCH LONG ON TOP SURJul 21, 1999SDR ALG2002F00045Turbine Wheel · damagedUPON DISASSEMBLY OF TURBINE FOR EVALUATION DUE TO ENGINE QUITTING DURING OPERATION. UPON INSPECTION OF ALL PARTS NR 2 WHEEL HAD ONE BLADE MISSING. PERFORM INSPECTION OF WHEELS UPON ASSEMBLY AT MANUFACTURER FOR POSSIBLE IMPERFECTIONS.Jul 20, 1999 · N107AL · Bolkms BO105SSDR CA990804002Wheel · cracked(CAN) HAIR LINE CRACKS DETECTED DURING NDT OF THE WHEEL AT REPAIR /OVERHAUL FACILITY (ACRO AEROSPACE).Jul 16, 1999 · Skrsky S76ASDR 20000508SH034Blade · wornEXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Jul 15, 1999 · N911BY · Bolkms BK117A4SDR 20000508SH033Seal · meltedSEAL, NR 3 BEARING, LEAKING BEYOND SERVICE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)Jul 15, 1999 · N911BY · Bolkms BK117A4SDR 99ZZZX3803Spring · wornSPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 13, 1999 · N10UM · Bolkms BK117B1SDR ERAA062930Bearing · spalledNR 5 BEARING NEW WHEN INSTALLED. HAS SPALLING AND PITS ON BALLS.Jul 12, 1999 · N298EH · Bolkms BO105SSDR 99UAL900365T1 Blade · fracturedAFTER TAKEOFF FROM LHR CREW NOTICED EGT RISE WITH LOSS OF POWER ON NR 1 ENGINE. ENGINE WAS SHUT DOWN AND FLIGHT RETURNED TO LHR. *S/D* NR 1 ENGINE REMOVED. FOUND HIGH PRESSURE TURBINE DAMAGE ORIGINATING AT STAGE 1 BLADE FRACTURED IN AIRFOIL ABOVE THE PLATFJul 12, 1999 · N798UA · Boeing 777222SDR CA990728033Nozzle Shield · broke(CAN) ENGINE WAS SLOW TO START. REMOVED COMBUSTION LINER FOR TROUBLESHOOTING AND FOUND DEFLECTOR DETACHED FROM NOZZLE SHIELD PARTIALLY BLOCKING ENTRY TO NOZZLE VANES.Jul 9, 1999 · Skrsky S76ASDR 99ZZZX3328Wheel · chafedUPON DISASSEMBLY OF ENGINE FOR MAJOR PERIODIC INSPECTION, NOTED 'RUBBING' OF 3RD STAGE TURBINE WHEEL. THIRD STAGE WHEEL-STATOR AND HONEYCOMB SEAL SENT TO ALLIED SIGNAL FOR EVALUATION. ENGINE RE-ASSEMBLED PER NORMAL MAINTENANCE MANUAL INSTRUCTIONS AND TEST CEJul 9, 1999SDR 2000ZZZX734Shroud · damagedEXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 8, 1999 · N528SF · Bolkms BK117A3SDR AALA990956Stator Vane · failedPHL - FLT 317 - DURING CLIMB-OUT AT 33,000 FT, FLT CREW HEARD A LOUD NOISE FROM NR 2 ENG WITH THE EGT PEGGED AT 800 DEGREES.FLT CREW DECLARED AN EMERGENCY, SECURED NR 2 ENG AND DIVERTED TO PHL. A/C LANDED PHL WITHOUT FURTHER INCIDENT. MX FOUND THE NR 2 ENGJun 27, 1999 · N218AA · Doug DC982SDR CA990728024Wheel · failed(CAN) ENGINE FAILURE. INITIAL INVESTIGATION SHOWS FAILURE OF NR 1 GP WHEEL, POSSIBLY DUE TO OVER-TEMPERATURE. INITIAL TESTING OF TEMP SENSING SYSTEM SHOWS ERROR OF 80 DEGREES CELCIUS.Jun 25, 1999 · Hughes 369ESDR AALA990949Bearing · failedSAN - FLT 2090 - DURING T/O, LOST POWER ON NR 2 ENG. AIRCRAFT DIVERTED TO MIRAMAR MARINE AIR BASE (NKX) OVERWEIGHT AND WITHOUT FURTHER INCIDENT. REPLACED NR 2 ENG, PERFORMED ENG RUN UP AND LEAK CHECK. PERFORMED O/W INSPECTION WITH NO DISCREPANCIES. SYSTEM GJun 25, 1999 · N450AA · Doug DC982SDR AU990578Blade · damaged(AUS) NR 2 ENGINE FIRST STAGE TURBINE BLADES SEVERELY DAMAGED.Jun 23, 1999 · Skrsky S76ASDR CA990707016Rivet · missing(CAN) A RETENTION RIVET ON THE FOURTH TURBINE WHEEL IS MISSING.Jun 18, 1999SDR SWAA991101Turbine · failedAIR TURNBACK, IN FLIGHT SHUT DOWN. NR 1 ENG HPT BLADE FAILURE SHORTLY AFTER TAKEOFF. REMOVED AND REPLACED NR 1 ENG PER MM.Jun 16, 1999 · Boeing 7372H4SDR 20000523SH006Shaft · defectiveTHE REFERENCED OUTER POWER TURBINE SHAFT WAS INSPECTED9. THIS PART WAS DETERMINED TO BE UNSERVICEABLE AND UNREPAIRABLE DUE TO CURVIC COUPLING ROOT DAMAGE (REF: FORM ESPD NR 08-070-301500; ALLISON GAS TUBRINE 250-C30 SERIES OVERHAUL MANUAL, SECTION 72-50-00, PJun 15, 1999SDR HEEA062410Wheel · damagedUPON ASSEMBLY OF P.T. ROTOR; UNABLE TO OBTAIN BALANCE. REPLACEMENT OF NR 4 TURBINE WHEEL CURED PROBLEM. INSTALLED NEW WHEEL.Jun 15, 1999 · N967MB · Bolkms BO105SSDR ERAA062570Seal · mismanufacturedNEW LABYRINTH SEAL THAT COULD NOT BE INSTALLED ON AIRCRAFT DUE TO PILOT DIAMETER OVERSIZED.Jun 14, 1999 · N151EH · Bolkms BO105SSDR ERAA062569Nozzle · malfunctionedEXCHANGE UNIT SENT TO ERA D/AIRMOTIVE W/O LA0845 6-9-99. COULD NOT BE USED ON AIRCRAFT DUE TO NR 4 BTP RUNOUT OUT OF LIMITS.Jun 14, 1999 · N405EH · Bell 206LSDR TWAA9908003Turbine · damagedTHE RT ENGINE SHUT ITSELF DOWN WHILE EGT INDICATION INCREASED. CREW ACCOMPLISHED THE ENGINE SHUT DOWN PROCEDURE AND MADE UNSCHEDULED LANDING AT IND. FOUND TURBINE FAILURE AND REPLACED THE ENGINE. CHECK-C 8-24-98 STL. *S/D* FOUND FOD IMPACT TO 1 EACH 7TH SJun 5, 1999 · N925TW · Doug DC982SDR 99ZZZX3878Rotor Assy · damagedRETENTION LOCK-CUP FAILED. NUT LOOSENED CAUSING FLANGE TO WEAR A GROOVE INTO SPEED INDICATOR PLUG OF PT ROTOR. PART OF THE LOCK-CUP CUT A PORTION OUT OF THE ELBOW CAUSING ENGINE TO LOSE POWER.Jun 4, 1999 · N527RM · Bolkms BK117A4SDR HEEA062409Seal · pittedENGINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: PITS BEYOND SERVICEABLE LIMITS ON CARBON SEAL MATING SURFACE.Jun 1, 1999
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