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 HEEA0011818Engine · crackedENGINE POWER SECTION HAS A CRACK IN GENERATOR CASE.Nov 7, 1997 · N107X · Bell 412SDR SCNA97361Blade · damagedTHE NUMBER 2 ENGINE WAS SHUTDOWN DUE TO ENGINE VIBRATION AND LOSS OF N1 INDICATION. BORESCOPE INSPECTION OF THE NUMBER 2 ENGINE REVEALED A DAMAGED LPT BLADE. REMOVED AND REPLACED ENGINE PER B727 MM 71-00.Nov 2, 1997 · N281SC · Boeing 727282SDR AU971372Vane · damaged(AUS) HP TURBINE INLET GUIDE VANE ASSEMBLY HAD ONE VANE COMPLETELY BURNED AWAY AT APPROXIMATELY THE 8 O'CLOCK POSITION.Nov 2, 1997SDR MASA97204Power Section · failedFLT 7596 - MTJ-DEN - AFTER DEPARTURE FROM MTJ, CREW FELT A VIBRATION IN THE LEFT ENGINE AND TORQUE AND PROP RPM DROPPED BELOW STANDARDS. CREW PERFORMED ENGINE SHUTDOWN AND CALLED FOR EMERGENCY EQUIPMENT ON THE FIELD. AIRCRAFT RETURNED TO FIELD WITHOUT INCIDENov 1, 1997 · N113YV · Beech 1900DSDR P5CA9701812R-Rail · crackedCRACK (RADIAL OD) IN NR 2 ENG R-RAIL AT FASTENER HOLE AT 9 O'CLOCK POSITION. WELDED AND STRESS RELIEVED PER PW MM 72-51-01.Oct 31, 1997 · N920FT · Boeing 747249FSDR HEEA0011731Nozzle · crackedTURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR2 NOZZLE 1ST STAGE INNER BAND. INSTALLED A DALLAS AIRMOTIVE OVERHAULED NR2 NOZZLE.Oct 31, 1997SDR CA971113075Blade · fractured(CAN) TEAR DOWN REPORT INDICATES A SINGULAR CT BLADE FAILURE DUE TO FATIGUE WAS THE SOURCE OF THE DAMAGE TO THE ENGINE. THE CT BLADE WAS A PMA PART. PART TC: 4,759.Oct 28, 1997 · Beech 99SDR CA971104014Bolts · fractured(CAN) TURBOMACHINE SENT FOR INVESTIGATION AND REPAIR AFTER OPERATOR REPORTED POWER TURBINE DAMAGE. THE CAUSE OF THE PT DAMAGE WAS A FAILURE OF SEVEN, 1ST STAGE STATOR RETAINING BOLTS. FAILURE OF THE 1ST STAGE STATOR RETAINING BOLTS APPEARS TO BE THE RESULT OFOct 23, 1997SDR CA971028003Blade · failed(CAN) ENGINE MADE A THUMP ON TAKEOFF AND LOST TORQUE. TOWER COMMUNICATED THAT SMOKE WAS COMING FROM RT ENGINE. TAKEOFF ABORTED. ONE BLADE MISSING FROM NR 1 TURBINE WHEEL AND SEVERAL BLADES DAMAGED. BLADES DAMAGED ON NR 2 AND NR 3 WHEELS, VARIOUS PARTS DAMAGEOct 23, 1997 · Swrngn SA226TCSDR 97ZZZX4973Turbine · cokedFIVE MINUTES AFTER TAKEOFF, PILOT NOTICED OIL PRESSURE GAUGE FLUCTUATED FROM 60 PSI - 130 PSI AT A STEADY RATE. DURING A PRECAUTIONARY LANDING, THE TORQUE FLUCTUATED ABOUT 10 PERCENT. UPON INITIAL INVESTIGATION, THE OIL RESERVOIR WAS WAY DOWN AND THE EXHAUSTOct 21, 1997 · N2138Y · Bell 206L1SDR HEEA0011569Blade · corrodedTURBINE REMOVED DUE TO 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: MINOR SULFIDATION ON NR 1 WHEEL BLADES. SCRAPPED WHEEL.Oct 20, 1997 · N3181J · Bell 206B3SDR 98ZZZX905Blade · failedENGINE REMOVED FOR METAL IN THE TAILPIPE.Oct 20, 1997SDR CA971113039Turbine · failure(CAN) COULD NOT START ENGINE DUE TO N2 LOCKUP. START ABORTED. RUBBING NOISE COULD BE HEARD WHEN N2 TURBINE ROTATED. TURBINE REPLACED. PART TC: 18.Oct 19, 1997 · Hughes 369DSDR CA971024012Drain · leaking oil(CAN) OIL WAS LEAKING FROM THE NR3 ENGINE TURBINE CASE DRAIN. NO OIL LEAKAGE IS PERMITTED FROM THAT DRAIN. THE NR3 ENGINE IS BEING REPLACEDOct 19, 1997 · Lkheed 10113853SDR CA971113038Turbine · seized(CAN) TURBINE WOULD SEIZE ON START, WOULD BREAK LOOSE AFTER COOL DOWN, BUT GRINDING NOISE FROM TURBINE PERSISTS. SOUNDS LIKE BLADE RUB. REPLACED.Oct 18, 1997 · Hughes 369DSDR TWAA9713802Turbine Blade · failedABQ - FLT 160 - AFTER TAKEOFF, AT 200 FEET, THE LEFT ENGINE FAILED. SHUT DOWN ENGINE. EMERGENCY PROCEDURES FOLLOWED. ENGINE CHANGED. A SECOND STAGE TURBINE BLADE FAILED. AIRFOIL SEPARATED FROM ROOT AT INNER END DUE TO FATIGUE CRACK. (M)Oct 15, 1997 · N931TW · Doug DC983SDR HEEA0011460N1 Coupling · wearENGINE REMOVED DUE TO IMPELLER CYCLES: TURBINE DISASSEMBLED DUE TO N1 DRAG ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: SPLINE WEAR BEYOND SERVICEABLE LIMITS ON N1 COUPLING SPLINE (FAILED NO GO GAUGE) INSTALLED A NEW N1 COUPLING.Oct 14, 1997 · N50293 · Bolkms BO105SSDR P5CA9701678Flange · crackedCRACK ON Q-FLANGE OF NR 3 ENGINE TURBINE EXHAUST CASE AT 1:30 O'CLOCK. WELD REPAIR MADE PER BOEING PROCESS 5975. INSPECTED WELD PER BOEING SOPM 20-20-02.Oct 9, 1997 · N850FT · Boeing 747122SDR CA971110008Turbine Blade · failed(CAN) DURING MAINTENANCE RUN-UP, THE NR 1 ENGINE VIBRATION BEGAN TO INCREASE. THE NR 1 ENGINE WAS SHUTDOWN. INSPECTION FOUND A HOLE IN THE LOWER TURBINE CASE, WHICH INDICATED A TURBINE BLADE, OR BLADES, HAD FAILED AND EXITED THROUGH THE CASE. THERE WAS NO AOct 7, 1997 · Gulstm G159SDR CA971021013Bearing · failed(CAN) THE ENGINE SUFFERED AN IN-FLIGHTT FAILURE DURING DESCENT. POST-FLIGHT INSP AND INVEST FOUND PRIMARY FAILED ITEM AS TURBINE COUPLING SHAFT. ENGINE AND COMPONENTS SHIPPED TO MFG FOR EVALUATION. MFG DISPUTES ORIG FINDINGS AND STATES THE INITIATING EVENT Oct 7, 1997SDR 98ZZZX1899Shaft · failedHPT AFT SHAFT FAILED ON TAKEOFF ROLL AT 80 PERCENT N1. HPT AFT SHAFT FAILED AT SEAL TEETH CAUSING EXTENSIVE DAMAGE DOWN STREAM IN THE TURINE 2ND LPT AREAS.Oct 7, 1997 · N373US · Boeing 7373B7SDR 97ZZZX4786Exhaust Nozzle · misrepairedEXHAUST NOZZLE WAS SENT TO REPAIR AND OVERHAUL SHOP FOR REPAIR OF INNER BEARING BORE FLANGE. INSPECTION OF PART FOLLOWING 'REPAIR' REVEALED THE FOLLOWING DISCREPANCIES. INNER BEARING BORE WAS NOT REPAIRED. PART WAS MODIFIED TO PN 3077095-4. THIS PART IS USOct 7, 1997SDR 99ZZZX409Blade · damagedTHE PILOT REPORTED THE NR 2 ENGINE BEGAN TO 'BOG DOWN' DURING A PRECAUTIONARY LANDING TO AN OFFSHORE PLATFORM AFTER THE NR 2 ENGINE FIRE WARNING LIGHT ILLUMINATED. METALURGICAL EXAMINATION BY THE ENGINE MANUFACTURER REVEALED THE FIRST STAGE TURBINE WHEEL HAD Oct 6, 1997 · N54197 · Bolkms BO105CBSSDR P5CA9701609Flange · crackedCRACKED R FLANGE (RAIL) ON NR 2 ENGINE TURBINE EXHAUST CASE. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Oct 4, 1997 · N852FT · Boeing 747122SDR 98ZZZX1431Bearing · damagedBEAERING NR 3 SECONDARY DAMAGE DUE TO NR 2 BEARING FAILURE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES: 1,069.2.Sep 30, 1997 · N117NY · Bolkms BK117A3SDR HEEA00110991st Stg Wheel · sulfidationENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED: MINOR SULPHIDATION ON ALL #1 WHEEL BLADES. SCRAPPED WHEEL.Sep 29, 1997 · N818SH · Bolkms BO105SSDR 97ZZZX4473Engine · failedENGINE WAS REMOVED FROM SERVICE DUE TO LPT FAILURE AT TAKEOFF. PRELIMINARY DISASSEMBLY FINDINGS REVEALED SEVERAL T4 BLADES BROKEN AT AIRFOIL WITH EXCESSIVE DAMAGE TO LPT MODULE, T1 DISK AND EXHAUST CASE. THE OUTER EXHAUST DUCT HAD RUPTURED DURING FAILURE. FSep 29, 1997SDR P5CA9701599Flange · crackedCRACK ON NR 3 ENGINE TURBINE EXHAUST CASE R-FLANGE (RAIL) AT 6 O'CLOCK. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Sep 28, 1997 · N858FT · Boeing 747123SDR P5CA9701598Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE S-FLANGE (RAIL) AT 2 O'CLOCK. WELDED AND STRESS RELIEVED CRACK PER PWA ENGINE MANUAL 72-53-01.Sep 28, 1997 · N858FT · Boeing 747123SDR CA971020016Blade · fractured(CAN) THE ENGINE WAS SHUTDOWN IN FLT AFTER LOSS OF OIL PRESSURE: POST FLT- PT WAS STIFF TO TURN, SO- ENGINE WAS SENT FOR INSP & OVERHAUL. DISASSY REVEALED 2 LP TURBINE BLADES WITH 50 PERCENT OF- AIRFOIL MISSING; OVERTEMP DAMAGE TO ALL 4 STAGES OF TURBINE BLADESep 26, 1997SDR CA970922020Bolt · wrong part(CAN) DURING INSPECTION BOLTS ON THE COMPRESSOR TURBINE SHROUD ASSEMBLY HOUSING WERE FOUND DEFORMED WITH MATERIAL LOSS. INVESTIGATION FOUND THE BOLTS USED IN THIS INSTALLATION WERE THE WRONG PART.Sep 18, 1997 · Beech 65A90SDR 97ZZZX4348Circlip · missingDURING CLEANING OF REAR BEARING SUPPORT ASSEMBLY, INSPECTION FOUND THE CIRCLIP THAT HOLDS REAR BEARING POWER TURBINE GUIDE VANE MISSING. SUSPECT CAUSE: DURING LAST MAINTENANCE PROCEDURES BY TURBOMECA CO., CIRCLIP WAS NOT INSTALLED. A/C TT: 1,699.5 HOURS. ESep 17, 1997 · N6099P · Snias AS350B2SDR AWXA9700563Turbine Blade · failedABORTED TAKEOFF, LESS THAN 20 KTS TAKEOFF POWER NR 2 ENGINE MADE LOUD NOISE AND VIBRATION. SHUT ENGINE DOWN AND RETURNED TO GATE. REMOVED AND REPLACED NR 2 ENGINE. LOW PRESSURE TURBINE STAGE 4 BLADE FAILURE.Sep 16, 1997 · N182AW · Boeing 737277SDR P5CA9701583Flange · crackedCRACK ON NR 1 ENGINE TURBINE EXHAUST CASE S-FLANGE AT 1:30 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR P5CA9701582Flange · crackedCRACK ON NR 1 ENGINE TURBINE EXHAUST CASE R-FLANGE AT 6:00 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR P5CA9701581Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE S-FLANGE AT 2 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR P5CA9701580Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE R-FLANGE AT 2 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR P5CA9701579Flange · crackedCRACK ON NR 2 ENGINE TURBINE EXHAUST CASE R-FLANGE AT 6:30 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR P5CA9701578Flange · crackedCRACK ON NR 4 ENGINE TURBINE EXHAUST CASE FLANGE (RAIL) AT 7 O'CLOCK. WELD REPAIR AND STRESS RELIEF PER PWA MM 72-53-01.Sep 15, 1997 · N856FT · Boeing 747132SDR TWAA9711102Turbine · damagedSTL - FLT 266 - DURING CLIMB, NR 1 ENGINE STALLED AND EPR DROPPED FROM 2.17 TO 1.8. FOREIGN OBJECT DAMAGE WAS FOUND AND ENGINE WAS REPLACED. ENGINE TEAR DOWN REVEALED COMPRESSOR DAMAGE WAS MINOR COMPARED TO TURBINE DAMAGE. A SECOND STAGE TURBINE VANE FRETTESep 10, 1997 · N408EA · Doug DC951SDR S2YA970029Power Section · failedMKE/CVG - FLT 1026 - DURING CLIMB-OUT, CREW NOTICED THE RT ENGINE TORQUE FLUCTUATING PLUS OR MINUS 200 FEET/POUNDS AND PROPELLER SPEED WAS FLUCTUATING WITH THE TORQUE FLUCTUATIONS. THE CREW NOTIFIED ATC AND RETURNED TO MKE WITHOUT INCIDENT. THE RT AND LT PROSep 10, 1997 · N801SK · Beech 1900DSDR P5CA9701556Case Rail · crackedCRACK AT 10 O'CLOCK ON NR 1 ENGINE TURBINE EXHAUST CASE R-RAIL. WELD REPAIR AND STRESS RELIEF IAW PWA ENGINE MM 72-53-01, REPAIR 14.Sep 10, 1997 · N857FT · Boeing 747132SDR HEEA0011031Turbine · defectiveENGINE REMOVED DUE TO HIGH OIL CONSUMPTION. INSTALLED A SERVICEABLE TURBINE.Sep 10, 1997 · N8589X · Bell 206L3SDR 97ZZZM1065Turbine Blade · brokenTHE FLIGHT CREW NOTED THAT THE NR 2 ENGINE WAS RUNNING ABOVE THE NORMAL EGT AT TAKEOFF POWER. VISUAL INSPECTION OF THE ENGINES TURBINE SECTION REVEALED IMPACT DISTRESS TO THE LPT BLADES AND STATORS. BORESCOPE INSPECTION REVEALED ON IP TURBINE BLADE SEPARATEDSep 10, 1997 · N280EA · Fokker F27MK600SDR P5CA9701542Case Rail · crackedCRACK ON TURBINE EXHAUST CASE S-RAIL APPROX 1700 O'CLOCK ON NR 3 ENGINE. WELD REPAIRED AND STRESS RELIEVED PER PWA ENGINE MANUAL 72-53-01, REPAIR 14.Sep 9, 1997 · N857FT · Boeing 747132SDR P5CA9701541Case Rail · crackedCRACK ON TURBINE EXHAUST CASE R-RAIL APPROX 10 O'CLOCK ON NR 2 ENGINE. WELD REPAIRED AND STRESS RELIEVED PER PWA ENGINE MANUAL 72-53-01, REPAIR 14.Sep 9, 1997 · N857FT · Boeing 747132SDR CA970918013Blades · fractured(CAN) THE NR4 ENGINE SHUTDOWN DURING THE TAKEOFF ROLL AT ABOUT 90 KNOTS. INSPECTION REVEALED 16 SECOND STAGE BLADES HAD FRACTURED.Sep 9, 1997SDR 9716919872Turbine · damagedDURING CLIMB AT 11,000 FEET, THE RIGHT ENGINE EXPERIENCED VIBRATIONS WITH ASSOCIATED CONTAINED FAILURE OF THE RIGHT ENGINE. CREW FOLLOWED COM PROCEDURES, RETURNED TO DTW, AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT ENGINE.Sep 5, 1997 · N781NC · Doug DC951SDR CA971016012Turbine Blade · fractured(CAN) IN CRUISE AT FL370 WHEN CREW APPLIED CLIMB POWER TO ASCEND TO FL390- HIGH SPEED SPOOL (N2) OF- NR2 ENGINE SUDDENLY DROPPED FROM CLIMB SPEED TO ZERO RPM. FOLLOWED BY HIGH VIBRATIONS. CREW FOLLOWED ENGINE SHUTDOWN PROCEDURES &- A/C WAS DIVERTED. STAGE 2 TUSep 4, 1997SDR CA970915007Interstage Case · corroded(CAN) THE ENGINE WAS REMOVED FROM SERVICE AFTER A ROUTINE BORESCOPE INSPECTION FOUND THE LEADING EDGES OF ALL THE PT1 TURBINE BLADES HAD DISTINCT NOTCHED AT THE VERY ROOT OF THE BLADE WITHIN THE AIRFOIL TO PLATFORM RADIUS. DISASSEMBLY FOUND THE NOTCHES IN THE Sep 4, 1997
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