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 HEEA967623Nozzle Vanes · crackedENGINE REMOVED DUE TO CRACKED COMPRESSOR SCROLL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE VANES AND EXCESSIVE RUNOUT BEYOND SERVICEABLE LIMITS OAug 2, 1996 · N54197 · Bolkms BO105SSDR HEEA967622Nozzle Vanes · crackedENGINE REMOVED DUE TO CRACKED COMPRESSOR SCROLL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE VANES AND EXCESSIVE RUNOUT BEYOND SERVICEABLE LIMITS OAug 2, 1996 · N54197 · Bolkms BO105SSDR HEEA967621Liner · crackedENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKS BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND CRACKED BEYOND SERVICEABLE LIMITS ON COMB. LINER SKIRT. REPLACED DISCREPANT PARTS.Aug 2, 1996 · N50293 · Bolkms BO105SSDR HEEA967620Nozzle Vanes · crackedENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKS BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND CRACKED BEYOND SERVICEABLE LIMITS ON COMB. LINER SKIRT. REPLACED DISCREPANT PARTS.Aug 2, 1996 · N50293 · Bolkms BO105SSDR CA960830002Blade · worn(CAN) AS A RESULT OF THE FINDINGS OF AN INSPECTION REQUIRED BY PRATT & WHITNEY SERVICE BULLETIN #5913, THE #2 ENGINE WAS TO BE REMOVED DUE TO EXCESSIVE WEAR ON THE TURBINE BLADE SHROUD CROSS NOTCH. THE ENGINE WAS REMOVED FOR REPAIR AND RESURFACEING OF THE TURBAug 2, 1996SDR CA960827019Case Bolts · fractured(CAN) ROUTINE BOROSCOPE INSPECTION REVEALED THE 1ST STAGE POWER TURBINE BLADES HAD SMALL NOTCHES IN THE LEADING EDGE NEAR THE ROOT AND TIP PLATFORM. TEARDOWN OF THE ENGINE FOUND MULTIPLE FAILURES OF THE INTERSTAGE CASE BOLTS. THIS RELEASED THE INTERSTAGE CASE Aug 1, 1996SDR P5CA9600453Turbine Exhaust · crackedNR 2 ENGINE TURBINE EXHAUST CASE R-RAIL RADIAL CRACK AT 6 O'CLOCK POSITION. WELDED AND STRESS RELIEVED PER PRATT AND WHITNEY MAINT MANUAL 72-53-01.Jul 31, 1996 · N858FT · Boeing 747123SDR P5CA9600452Turbine Exhaust · crackedNR 2 ENGINE S-RAIL CRACKED 5 TO 7 O'CLOCK. WELDED AND STRESS RELIEVED PER PRATT AND WHITNEY MAINT MANUAL 72-53-01.Jul 31, 1996 · N858FT · Boeing 747123SDR P5CA9600448Exhaust Case · crackedNR 1 ENGINE TURBINE EXHAUST CASE S-RAIL CRACKED AT 10 O'CLOCK. WELDED AND STRESS RELIEVED PER PRATT AND WHITNEY MAINT MANUAL 72-53-01.Jul 31, 1996 · N858FT · Boeing 747123SDR CA960808013Bolt · broken(CAN) THE ENGINE WAS UNDERGOING ROUTINE INSPECTION AND WAS OBSERVED TO HAVE SUSTAINED CONSIDERABLE POWER TURBINE DAMAGE. DISASSEMBLY FOUND THE ENGINE HAD SUFFERED A FRACTURE OF ONE INTERSTAGE CASE BOLT, WHICH RELEASED THE BOLT HEAD WHICH WAS SUBSEQUENTLY INGESJul 31, 1996SDR ERAA96286Pt Support · defectivePT SUPPORT OVERHAULED 7-3-96. REAR SUMP COVER NOT SECURE TO SUPPORT. EVALUATE CRACKS ADJACENT TO 6 O'CLOCK STRUT.Jul 30, 1996 · N135EH · Bolkms BO105ASDR CA960813007Retaining Ring · detached(CAN) MAG PLUG LIGHT ON ENGINE NR 2. FOUND METAL ON BOTH PLUGS AND ON DISASSEMBLY FOUND THE RETAINING RING AND THE FLAT WASHER WHICH HOLD THE NR 5 BEARING OUTER RACE, RESTING IN THE BEARING BORE AREA. IT WAS UNDETERMINED HOW THE RING CAME OUT OF ITS GROOVE OJul 30, 1996SDR AU961104Turbine · failed(AUS) NO2 ENGINE FAILED - TGT INCREASED TO 957 DEGREES - SUSPECT CAUSEDBY 1ST STAGE TURBINE RUBJul 30, 1996 · Bac 146200ASDR AU961110Turbine Wheel · cracked(AUS) FOURTH STAGE TURBINE WHEEL CRACKED THROUGH RIMJul 29, 1996SDR 96ZZZX5800Pt Rotor · defectiveC/W SB 0153 R1. PT ROTOR REPLACED.Jul 29, 1996 · N311LF · Bolkms BK117A3SDR IXXA96118Hpt Blade · crackedDURING PRECAUTIONARY BORESCOPE INSPECTION OF THE NR 1 ENGINE, MAINTENANCE FOUND ONE HIGH PRESSURE TURBINE BLADE TRAILING EDGE TIP CORNER MISSING. MISSING MATERIAL WAS LOCATED AT THE TRAILING EDGE TIP, DOWNWARD TO THE FIRST AIR SLOT IN AREA B, CFMI MM 72-00-00Jul 27, 1996 · N824BX · Doug DC871SDR MZZA96060Turbine · failureAT GEAR RETRACTION, PASSING ABOUT 300 FEET, NR 3 ENGINE FAILED (TURBINE SECTION) CLIMBED TO 1000 FEET, CLEANED UP, DID ENGINE FAIL CHECK LIST AND RETURNED TO PONAPE FOR NORMAL TWO ENGINE LANDING. REMOVED AND REPLACED NR 3 ENGINE PER JOB CARD 07-7100-1-8001 ANJul 26, 1996 · N69741 · Boeing 727224SDR 97ZZZX931Rotor Assy · defectiveGAS PRODUCER ROTOR ASSY DUE SB LT101-72-10-0150. REQUIRES DISASSEMBLY AND INSPECTION OF THE ROTOR BROACH SLOTS FOR POSSIBLE CRACKS IN THE DISC/TENON AREA. REPLACED WITH NEW UNIT CORRECT PROBLEM. PART TOTAL CYCLES 3.701.7.Jul 25, 1996 · N117CW · Bolkms BK117A4SDR 97ZZZX2730Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 25, 1996 · N117CW · Bolkms BK117A4SDR 97ZZZX2726Spring · wornSEAL RING EXPANDER SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Jul 25, 1996 · N117CW · Bolkms BK117A4SDR 97ZZZX2725Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Jul 25, 1996 · N117CW · Bolkms BK117A4SDR 96ZZZX4037Vane · failedENGINE WAS REMOVED FROM SERVICE DUE TO A LOUD BANG AND ENGINE EXPERIENCED AN IN-FLIGHT SHUT DOWN. DISASSEMBLY OF THE ENGINE REVEALED A SECOND STAGE VANE CLUSTER WAS MISSING AND THE REMAINDER OF THE N1 TURBINE HAD MASSIVE DAMAGE. THE CAUSE FOR THE FAILURE IS Jul 25, 1996SDR CA960808009Blades · damaged(CAN) PILOT REPORTED MAXIMUM POWER COULD NOT BE ACHIEVED ON #1 ENGINE AT FL330, UNLESS IGNITERS WERE TURNED ON. HOT SECTION INSPECTION REVEALED ALL HIGH PRESSURE TURBINE BLADES WERE DAMAGED WITH SEVERAL BLADES MISSING LARGE PIECES. CAUSE AT THIS TIME IS NOT KNJul 24, 1996 · Cessna 501SDR AU961111Turbine Wheel · cracked(AUS) FIRST STAGE TURBINE WHEEL CRACKED - TURBINE LABYRINTH SEAL PICKED UP ON STATIONARY SEAL - SECOND STAGE NGV PNO 6878426 CRACKED INCURVIC COUPLINGJul 24, 1996 · Hughes 369CSDR 97ZZZX858Bearing · failedNR 2 BEARING FAILED. NO REPLACEMENT BEARING AT TIME OF THIS REPORT.Jul 24, 1996 · N532KH · Bolkms BK117A3SDR CALA9601051T3 Blade · brokenTHE NR 1 ENGINE FAILED WITH LOSS OF OIL WHILE EN ROUTE. THE AIRCRAFT WAS DIVERTED TO JAX WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND METAL IN THE NR 1 ENGINE TAILPIPE. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFOJul 23, 1996 · N16883 · Doug DC981SDR 97ZZZX66Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Jul 23, 1996 · N420MB · Bolkms BK117A3SDR 97ZZZX62Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 23, 1996 · N420MB · Bolkms BK117A3SDR AU961112Turbine Bolt · loose nut(AUS) GAS PRODUCER TURBINE BOLT NUT LOOSEJul 22, 1996SDR 96ZZZX5200Power Section · failedON CLIMB-OUT, RT ENGINE TORQUE SPIKED UP AND THEN DROPPED TO ZERO. THE RT PROP AUTOFEATHERED AND ENGINE FROZE. ACFT RETURNED TO FARMINGTON AND LANDED WITHOUT INCIDENT. PART TOTAL CYCLES, 15,450.Jul 20, 1996 · N156YV · Beech 1900CSDR 96ZZZX5199Gas Generator · failedON CLIMB-OUT, RT ENGINE TORQUE SPIKED UP AND DROPPED TO ZERO. RT PROP AUTOFEATHERED AND ENGINE FROZE. ACFT RETURNED TO FARMINGTON AND LANDED WITHOUT INCIDENT. PART TOTAL CYCLES, 17,661.Jul 20, 1996 · N156YV · Beech 1900CSDR 97ZZZX2742Spring · wornSEAL RING EXPANDER SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Jul 19, 1996 · N528SF · Bolkms BK117A3SDR 97ZZZX2741Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Jul 19, 1996 · N528SF · Bolkms BK117A3SDR 96ZZZX5465Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. H3046HY-001. PART TOTAL CYCLES, 965.0.Jul 19, 1996 · N951AM · Bolkms BK117A3SDR P5CA9600369R-Rail · crackedNR 4 ENGINE R-RAIL IS CRACKED CIRCUMFERENTIALLY, LIGHTENING HOLE TO LIGHTENING HOLE AT THE 5:30 POSITION. WELDED AND STRESS RELIEVED IAW PRATT AND WHITNEY MM 72-53-01.Jul 18, 1996 · N851FT · Boeing 747122SDR EISA96099Turbine · failedON TAKEOFF ROLL AT 60 KIAS AND AT TAKEOFF EPR 25 DEGREES CELSIUS. NR 2 ENGINE EGT BECAME EXCESSIVE AND A COMPRESSOR STALL OCCURRED. TAKEOFF WAS ABORTED. REPLACED NR 2 ENGINE IAW MM. (M)Jul 18, 1996 · N363PA · Boeing 727221SDR 96UAL900554T2 Blade · fracturedNR 3 ENGINE FAILED AT 800 FEET ON TAKEOFF. EGT PEGGED, RPM DECAY, OIL QUANTITY DROPPED TO ONE GALLON AND OIL PRESSURE DROPPED TO ZERO. RETURNED TO DEN. T-2 BLADE FAILURE DUE TO NOTCH BREAK-OUT AND RESULTANT CYCLE FATIGUE. THE BLADE FAILURE WAS THE CAUSE OFJul 18, 1996 · N7463U · Boeing 727222SDR P5CA9600371S-Rail · crackedNR 2 ENGINE S-RAIL HAS A RADIAL CRACK AT THE 2 O'CLOCK POSITION. WELDED AND STRESS RELIEVED IAW PRATT AND WHITNEY MM 72-53-01.Jul 17, 1996 · N851FT · Boeing 747122SDR P5CA9600370S-Rail · crackedNR 4 ENGINE S-RAIL HAS A RADIAL CRACKED AT 1:30 POSITION. WELDED AND STRESS RELIEVED IAW PRATT AND WHITNEY MM 72-53-01.Jul 17, 1996 · N851FT · Boeing 747122SDR HEEA967584Wheel · crackedENGINE REMOVED DUE TO HIGH OIL CONSUMPTION. UPON INSPECTION OF TURBINE PARTS DUE TO LOW POWER ON TEST CELL NOTED THE FOLLOWING: ONSET OF SULPHIDATION ON 20 EACH 1ST STAGE WHEEL BLADES AND CRACKED IN RIM AREA. SCRAPPED 1ST STAGE WHEEL.Jul 16, 1996 · N6040U · Aerosp AS355F2SDR HEEA967583Wheel · defectiveENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Jul 16, 1996 · N50293 · Bolkms BO105SSDR HEEA967582Wheel · defectiveENGINE REMOVED DUE TO SMOKE ON SHUTDOWN. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Jul 16, 1996 · N721MB · Bolkms BO105SSDR ERAA96278Vane Assy · failedVANE ASSY SENT FOR OVERHAUL ON STANDARD AERO WORK ORDER L127225 2-9-96. VANE ASSY HAS -0- TSO AND STUB BROKE OFF DURING INSTALLATION.Jul 15, 1996 · N124EH · Bolkms BO105SSDR USAAD96105T4 Blades · fracturedSDF/PIT - FLT 2288 - ON DESCENT, HEARD THUMP ON RIGHT FUSELAGE AREA. ON FINAL, AT 1,000 FEET, RIGHT ENGINE WOULD NOT RESPOND TO POWER INPUT. AIRCRAFT LANDED, AND CREW NOTED RIGHT ENGINE EGT WAS CLIMBING, AND SHUT DOWN THE ENGINE. REPLACED ENGINE. FOUND ALLJul 14, 1996 · N809US · Doug DC981SDR 96ZZZM1272Bearing · failedAIRCRAFT WAS ON RAMP AREA, LEFT ENGINE WAS SHUT DOWN AND ALMOST STOPPED WHEN POWER SECTION SEIZED. PROPELLER WOULD NOT ROTATE. INTERNAL DAMAGE HAD OCCURED. (M)Jul 14, 1996 · N76013 · Beech 1900CSDR 96ZZZM1281Turbine · damagedDURING GROUND ENGINE RUN UP, POWER TURBINE SUFFERED MASSIVE FAILURE. REPLACED ENGINE.Jul 13, 1996 · N140DD · Aerosp ATR42300SDR ERAA96277Nozzle · cracked#2 NOZZLE HAS CRACKS IN OUTER BAND AND VANES.Jul 11, 1996 · N125EH · Bolkms BO105SSDR ERAA96276Nozzle · cracked#1 NOZZLE WAS RET'D FROM OVERHAUL , 10-4-95. T.S.O. IS 174.2 HRS AND NOZZLE HAS CRACKED OUTER BAND AND VANES.Jul 10, 1996 · N125EH · Bolkms BO105SSDR CA961021005Blade · separated(CAN) WHILE COMING IN TO LAND, THE PILOT NOTICED A SUDDEN INCREASE IN TOT AND VIBRATION LEVELS. LANDED IMMEDIATELY, NO PROBLEMS. TURBINE INSPECTION REVEALED ONE 1ST STAGE BLADE HAD SEPARATED FROM THE TURBINE DISC AT APPROXIMATELY .150 INCHES FROM BLADE ROOT.Jul 10, 1996 · Hughes 369DSDR CALA9600967Airseal · wornTHE NR 1 ENGINE SPOOLED DOWN ACCOMPANIED BY A LOUD EXPLOSION WHILE CLIMBING THROUGH FL 310. ABNORMAL PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT WAS RETURNED TO SFO WHERE IT LANDED WITHOUT INCIDENT. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL Jul 6, 1996 · N12811 · Doug DC982
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