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 95ZZZX5367Rotor Assy · blade shiftFAILED SB LT5101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 4, MINUS 0.011 INCH. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. PART TOTAL CYCLES 3925.7.Jul 12, 1995 · N428MB · Bolkms BK117A3SDR 95ZZZX4605Seal Plate · crackedDURING SCHEDULED INSPECTION, FOUND SEAL PLATE CRACKED 5 PLACES. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST FIRST STAGE ROTOR ASSEMBLY. INCREASED TENSION ON THE SEAL FLANGE RESULTS IN CRACKING AT THE SEAL PJul 12, 1995SDR 95ZZZX4043Module 3 · bearing cokedENGINE NOT PASSING OIL FLOW CHECK DUE TO COKING IN THE REAR BEARING MODULE 3. REQUIRED DISASSEMBLY AND CLEANING.Jul 10, 1995 · N57955 · Snias AS350BSDR 95ZZZX3743Wheel · crackedENGINE WOULD NOT MAKE POWER. FOUND 3RD STAGE WHEEL CRACKED.Jul 10, 1995 · N206WP · Bell 206B3SDR 95ZZZX5243Shaft · failedENGINE WAS REMOVED FROM SERVICE DUE TO VIBRATION. DISASSEMBLY OF THE ENGINE REVEALED A SECTION OF THE HPT REAR SHAFT HAD LIBERATED CAUSING EXTENSIVE DAMAGE WITHIN THE HPT AND LPT MAJOR MODULES. FAILURE INVESTIGATION IS BEING CONDUCTED.Jul 7, 1995SDR 96ZZZX2752Seal · crackedFOUND SEAL CRACKED AT FLANGE APPROXIMATELY 14 PLACES. THIS IS A CRITICAL LIFE-LIMITED COMPONENT. LIMIT - 20,000 CYCLES. SUGGEST ALLIED SIGNAL ENGINEERING DETERMINE/CORRECT CAUSE. THIS IS THE 12TH SEAL PLATE FOUND CRACKED AT THIS FACILITY. TOTAL CYCLES, 9,Jul 6, 1995SDR 96ZZZX1718Seal · flange crackedFOUND SEAL CRACKED AT FLANGE APPROXIMATELY 14 PLACES. THIS IS A CRICITAL LIFE-LIMITED COMPONENT. LIMIT - 20,000 CYCLES. SUBMITTER SUGGESTS ALLIED SIGNAL ENGINEERING DETERMINE/CORRECT CAUSE. THIS IS THE 12TH SEAL PLATE FOUND CRACKED AT THIS FACILITY. PART Jul 6, 1995SDR 95ZZZX5499Bearing · leaksREAR BEARING LEAKS AT THE SCAVENGE LINE BOSS. REPLACED BRONZE CRUSH SEAL TWICE WITH NO SUCCESS. IT WAS FOUND THE REAR BEARING HAD A SMALL NICK WHICH PREVENTED THE CRUSH SEAL FROM SEATING PROPERLY. SUSPECT SOMEONE NICKED THE REAR BEARING WHILE CLEANING COKE Jul 5, 1995 · N94LG · Snias AS350B2SDR PLGA522951JRivets · brokenA SEIZED POWER TURBINE MODULE DURING START WAS REPORTED. THE UNIT WAS REMOVED AND DIRECTED TO AN OVERHAUL FACILITY WHERE, UPON DISASSEMBLY THE DISCREPANCY WAS CONFIRMED AS CAUSED BY TWO BROKEN RIVET HEADS. ON WAS JAMMED BETWEEN THE NOZZLE AND STAGE 4 DISK. Jul 4, 1995 · N344BE · Saab SF340ASDR 95ZZZX4048Gas Generator · failedMCI/SLN - EN ROUTE, LEFT ENGINE FAILED AND CREW DIVERTED TO FOE. REMOVED AND REPLACED GAS GENERATOR AND POWER SECTION. GG TSO 51 HRS., 15,884 TT, PS S/N 32472, TSSV 1602, TT 8781. HSK S/N 72A912. TSN 1667, TSSV 1602. TEAR DOWN REPORT SHOWED NR 1 BEARING HJul 4, 1995 · N119YV · Beech 1900CSDR DL76L952950Hpt Blade · missingDURING BORESCOPE INSPECTION, FOUND AN HPT BLADE MISSING. ENGINE WAS REMOVED AND ROUTED TO SHOP.Jul 1, 1995 · N173DN · Boeing 767332SDR 95ZZZX3632Wheel · shaft mismfgFACTORY NEW WHEEL SPLINED ADAPTER SHAFT PILOT MEASURES 0.566 INCH WHICH IS APPROXIMATELY 0.010 INCH LARGER THAN MAXIMUM. WHEEL RETURNED TO ALLISON.Jul 1, 1995SDR HEEA955283Internal Sump · seal defectiveENGINE REMOVED DUE TO N2 SEIZURE. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: 50% OF GRAPHITE LIFTING IN INTERNAL SUMP 9/12 SEAL, CAUSING N2 SEIZURE.Jun 29, 1995 · N5737T · Bell 206L1SDR 96ZZZX1486Bearing · leakingBEARING LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jun 27, 1995 · N118LF · Bolkms BK117A4SDR HEEA955224Wheel · sulfidationENGINE DISASSEMBLED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Jun 26, 1995 · N1545K · Skrsky S76ASDR HEEA955223Wheel · sulfidationENGINE DISASSEMBLED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON OUTER TIP PATH AREAS OF ALL BLADES. SCRAPPED 2ND STAGE WHEEL.Jun 26, 1995 · N1545K · Skrsky S76ASDR HEEA955222Wheel · sulfidationENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL BLADES. SCRAPPED 1ST STAGE WHEEL.Jun 26, 1995 · N5745S · Bell 206L1SDR 95ZZZX4101Turbine · failedKMIA/SVMC - FLT KYC203 - ON POWER RUN-UP FOR TAKEOFF KMIA, APPROXIMATE 1.6 EPR, NR 1 ENGINE BEGAN TO VIBRATE. REJECTED TAKEOFF, AND MONITORED ENGINE. EGT 500, N1 28 PERCENT, N2 52 PERCENT. UPON INSPECTION AT GATE, FOUND TURBINE FAILURE. ENGINE IS BEING REPJun 24, 1995 · N203AV · Boeing 727259SDR 95ZZZX4049Gas Generator · failedFLT 5630 - CREW REPORTED SMOKE IN COCKPIT FOLLOWED BY LT ENGINE OIL LIGHT. CREW SHUT DOWN LEFT ENGINE AND RETURNED TO FIELD AT FYV. REMOVED AND REPLACED ENGINE. RECORDS SHOWED ENGINE HAD 54 HOURS SINCE IT CAME OUT OF SHOP FOR REAR HUB REPLACEMENT. GAS GENEJun 23, 1995 · N119YV · Beech 1900CSDR 95ZZZX5574Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNIT(S) CORRECTED PROBLEM.Jun 22, 1995 · N7059N · Bolkms BK117B1SDR 95ZZZX5572Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Jun 22, 1995 · N7059N · Bolkms BK117B1SDR 95ZZZX5382Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 22, MINUS 0.018 INCH, NR 20, MINUS 0.010 INCH. PART TOTAL CYCLES, 2747.2.Jun 22, 1995 · N7059N · Bolkms BK117B1SDR 95ZZZX5368Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 5, MINUS 0.017 INCH, NR 8, MINUS 0.011 INCH, NR 9, MINUS 0.009 INCH, NR 12, MINUS 0.010 INCH. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. PART TOTAL CYCLES, 2920.6.Jun 21, 1995 · N420MB · Bolkms BK117A3SDR HEEA955191Wheel · sulfidationENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: SEVERLY SULFIDATED BLADE TIP ON #1 WHEEL CAUSING WHEEL AND NOZZLE CONTACT WITH TRAILING EDGE TIPS OF 8 EACH BLADES MISSING. SCRAPPED #1 WHEEL.Jun 15, 1995 · N50182 · Bell 206L1SDR ERAA9589Nozzle · delaminatedSENT TO D/AIRMOTIVE ON ERA P.O. G108376 FOR OVERHAUL ON D/A WORK ORDER C67743 4/24/95. NOZZLE HAS -0- T.S.O. AND PORTION OF METALIZED AREA OF #4 BLADE TIP PATH DELAMINATED DURING MACHINING.Jun 14, 1995 · N124EH · Bolkms BO105SSDR 95ZZZX4050Gas Generator · seizedFYV - FLT 5635 - ON CLIMB AFTER TAKEOFF, LEFT ENGINE SHUT DOWN MAINTENANCE, FOUND POWER SECTION AND GAS GENERATOR SEIZED. REMOVED AND REPLACED GAS GENERATOR AND POWER SECTION. POWER SECTION HAD 2533 HOURS SINCE SHOP VISIT. GAS GENERATOR HAD 75 HOURS SINCE SJun 14, 1995 · N119YV · Beech 1900CSDR 96ZZZX517Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 6,224.8.Jun 13, 1995 · N527SF · Bolkms BK117A3SDR 95ZZZX5371Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 16, MINUS 0.010 INCH, NR 22, MINUS 0.010 INCH. PART TOTAL CYCLES, 2230.5.Jun 13, 1995 · N117MA · Bolkms BK117A3SDR ERAA9586Bellows Seal · groovedSEAL HAS 93.6 HOURS T.T.. SEAL HAS GROOVES ON CONTACT FACE OF CARBON SEAL.Jun 9, 1995 · N298EH · Bolkms BO105SSDR 95ZZZX5313Seal · failedISP - AFTER TAKEOFF, CABIN AND COCKPIT FILLED WITH SMOKE (ENGINE OIL FUMES). EMERGENCY ACTIONS WERE TAKEN AND AIRCRAFT RETURNED TO ISP WITHOUT INCIDENT. BORESCOPE INSPECTION OF ENGINE COMPRESSOR SECTION REVEALED OIL PRESENT IN THE NR 4 AND NR 5 BEARING CARBOJun 7, 1995 · N53GH · Lear 35ASDR PLGA66951Cooling Plate · fracturedDURING DEPARTURE CLIMB-OUT OF FLT NR 4380, PIT-JFK, PILOT WAS PERFORMING A CTOT DIAL DOWN AND ENGINE FAILED, ITT CLIMBED TO 1000 DEGREES PRIOR TO INFLIGHT SHUTDOWN. SUBSEQUENT BORESCOPE INSPECTION OF THE REMOVED ENGINE REVEALED A FAILED STG 1 TURBINE COOLING Jun 6, 1995 · N366BE · Saab 340BSDR ERAA9582Nozzle · defectiveNOZZLE WAS SENT TO DALLAS AIRMOTIVE FOR OVERHAUL ON ERA P.O. G108745 , D/AIRMOTIVE W/O C67772 . PART HAS -0- HRS TSO AND .007 -.009 SEAL RUNOUT ALL TANG LOCATIONS, WITH NOZZLE IN FIXTURE OR PT SUPPORT.Jun 6, 1995 · N124EH · Bolkms BO105SSDR ERAA9581Vane Assy · stud brokeDIFFUSSER VANE WAS SENT IN FOR REPAIR BY DALLAS AIRMOTIVE ON ERA POG105627, D/AIRMOTIVE W/O C67418 7/19/94. STUD BROKE AT 30 IN LBS. SEVERAL OTHER STUDS APPEAR TO HAVE WEAK MOLDS.Jun 6, 1995 · N297EH · Bolkms BO105SSDR 95ZZZX5369Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 11, MINUS 0.011 INCH. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. PART TOTAL CYCLES, 3314.5.Jun 6, 1995 · N625MB · Bolkms BK117A3SDR 95ZZZX3038Blade · tip missingTHE POWER SECTION WAS RECEIVED FROM ARIZONA AIRWAYS WITH 35 PERCENT OF A FIRST STAGE PT BLADE TIP PLATFORM MISSING. AFTER THE PT BLADE AND DISK WERE DISASSEMBLED AND INSPECTED, A TOTAL OF (2) 1ST STAGE AND (11) 2ND STAGE BLADES WERE REPLACED.Jun 6, 1995 · N259AF · Beech 1900CSDR ERAA9580Nozzle · crackedLOW POWER, VANES CRACKED BEYOND LIMITS, VANES COLLAPSING IN MIDDLE OF VANE. (NOTE: SUPERIOR TURBINE SERVICE LETTER T94-022.)Jun 5, 1995 · N427EH · Bolkms BO105SSDR ERAA9579Coupling · defectiveSHAFT INDENTIONS BETWEEN SEAL GROOVES AND BELOW SPLINE END (NOT SCALLOPED END) - OD OF SHAFT AT THESE POINTS DIFFER. 1.093" AND 1.104".Jun 5, 1995 · N124EH · Bolkms BO105SSDR ERAA9578Coupling · defectiveSHAFT UNDERCUT DIMENSIONS; SHAFT INDENTIONS BETWEEN SEAL GROOVES AND BELOW SPLINE END (NOT SCALLOPED END) OD OF SHAFT AT THESE POINTS DIFFER. 1.093" AND 1.104".Jun 5, 1995 · N298EH · Bolkms BO105ASDR 95ZZZX4030Gas Generator · damagedPART RECEIVED FROM EDM IN OVERHAULED CONDITION. WHEN GAS GENERATOR CASE WAS ASSEMBLED AND RUN ON THE TEST CELL FOR EVALUATION, ENGINE RAN HOT AND TOO FAST. ALL CORRECTIVE ACTIONS FAILED TO CORRECT THE PROBLEM. THE GAS GENERATOR CASE WAS REPLACED AND THE ASSJun 5, 1995SDR DL72L952504Turb Shear Pin · failedTHIS ENGINE WAS EXHIBITING HIGH EGT INDICATIONS AND SENT TO ATL FOR ENGINE TEST RUN ON WING. A NORMAL START WAS PERFORMED WITH START VALVE LIGHT EXTINGUISHING. THEN, 15 MINUTES AFTER START AND IDLE THE ENGINE FIRE WARNING LIGHT ILLUMINATED, JUST PRIOR TO REAJun 4, 1995 · N503DA · Boeing 727232SDR 95ZZZX4040Module 3 · bearing cokedENGINE NOT PASSING OIL FLOW CHECK DUE TO COKING IN THE REAR BEARING OF MODULE 3. REQUIRED DISASSEMBLY AND CLEANING.Jun 4, 1995 · N6052C · Snias AS350B2SDR HEEA955121Wheel · blades failedENGINE REMOVED DUE TO ENGINE FAILURE ON RUN-UP. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: 100% OF 1ST STAGE WHEEL BLADE TIPS FAILED .450" OUTBOARD FROM HUB TO BLADE TIP LEADING EDGE DUE TO THERMAL FATIGUE CAUSED BY ENGINE OPERATING IN AN OVERTEMPJun 2, 1995 · N54191 · Bolkms BO105SSDR HEEA955120Wheel · blades failedENGINE REMOVED DUE TO ENGINE FAILURE ON RUN-UP. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: 100% OF 1ST STAGE WHEEL BLADE TIPS FAILED .450" OUTBOARD FROM HUB TO BLADE TIP LEADING EDGE DUE TO THERMAL FATIGUE CAUSED BY ENGINE OPERATING IN AN OVERTEMPJun 2, 1995 · N54191 · Bolkms BO105SSDR HEEA955119Wheel · sulfidationENGINE REMOVED DUE TO CYCLED OUT 1ST AND 2ND STAGE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Jun 2, 1995 · N81832 · Bolkms BO105SSDR HEEA955118Nozzle · defectiveRECEIVING INSPECTION OF NEW, NEVER INSTALLED 2ND STAGE NOZZLE INDICATES .009" RUNOUT IN BOTH TIP PATHS, DIAPHRAGM OFF CENTER. NOTE: DAMAGE TO KEYS AND TANGS BY ADJUSTMENT PRIOR TO RECEIPT BY PHI. INSTALLED NEW 2ND STAGE NOZZLE.Jun 2, 1995 · N2743E · Skrsky S76ASDR HEEA955117Coupling · stepwearENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: STEP WEAR BEYOND LIMITS ON N1 COUPLING FORWARD I.D. SPLINES. INSTALLED NEW N1 COUPLING.Jun 2, 1995 · N1546K · Skrsky S76ASDR CA960422001Blade · burnt broken(CAN)ENGINE FAILED IN CRUISE. ENGINE TEARDOWN AT MANUFACTURER AND METALLURGICAL ANALYSIS REVEALED A VANE FRACTURED DUR TO THERMAL FATIGUE. OVERTEMP MAY HAVE CONTRIBUTED. TSB REPORT LP 119/05 REFERS.Jun 2, 1995SDR C2XA95CL089Turbine Blade · missingEWR/EWR - FLT 3848 - ABNORMAL VIBRATION AND NOISE COMING FROM RIGHT ENGINE DURING FEATHER AND UNFEATHER. NO NOISE WITH PROP BRAKE ON. BORESCOPE INSPECTION FOUND 1ST STAGE POWER TURBINE MISSING A BLADE. MAINTENANCE REMOVED AND REPLACED RIGHT ENGINE. OPS CHEMay 31, 1995 · N18809 · Aerosp ATR42320SDR 96ZZZX1620Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 15 PLUS 0.0105 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 5749.2.May 31, 1995 · N202HN · Bolkms BK117A3SDR 96ZZZX1619Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.May 31, 1995 · N202HN · Bolkms BK117A3
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