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 HEEA062408Nozzle Shield · crackedENGINE REMOVED DUE TO SMOKE ON SHUTDOWN. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE SHIELD DOME AS MARKED.Jun 1, 1999 · N911EB · Bolkms BO105SSDR 99ZZZX4184Blade · failedENGINE REMOVED POS 2 AT ANCHORAGE, AK 6-1-98 DUE LOW PRESSURE TURBINE FAILURE. ENGINE RECEIVED FOR MAINTENANCE 1-11-99. DISASSEMBLY INSPECTION REVEALED AN APPARENT 5TH STAGE TURBINE BLADE FAILURE. THE FAILED BLADES WILL BE FORWARDED TO PRATT & WHITNEY FOR AJun 1, 1999 · Boeing 747*SDR 99ZZZX2349Wheel · crackedTURBINE WHEEL RIM CRACKED THROUGH KNIVES.May 27, 1999SDR 99ZZZX2344Shaft · corrodedPOWER TURBINE OUTER SHAFT HAS SEVERE DEEP CORROSION AT DIMPLES AND CURVIC COUPLING. CORROSION AT DIMPLES 360 DEGREES AROUND AND OVER HALF AS DEEP AS THE DIMPLE. SEVERAL CURVIC CORRODED TOPS, INSIDE AND OUT. PT INNER SHAFT - THE FIRST .25 INCH OF THREAD CORMay 27, 1999SDR 99ZZZX2343Shaft · corrodedPOWER TURBINE OUTER SHAFT HAS SEVERE DEEP CORROSION AT DIMPLES AND CURVIC COUPLING. CORROSION AT DIMPLES 360 DEGREES AROUND AND OVER HALF AS DEEP AS THE DIMPLE. SEVERAL CURVIC CORRODED TOPS, INSIDE AND OUT. PT INNER SHAFT - THE FIRST .25 INCH OF THREAD CORMay 27, 1999SDR HEEA062407Wheel · mismanufacturedNEW PART ASSEMBLY INSPECTION REVEALED 19-24 SHOULDER TO SHAFT END DIMENSION APPROX: .0025 INCH UNDERSIZED CAUSING ROTOR TO NOT MEET TRAVEL AT ASSEMBLY.May 26, 1999 · N3904L · Bell 206L1SDR HEEA062405Coupling · wornENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED: PITTED AND STEP WEAR BEYOND SERVICEABLE LIMITS ON N1 COUPLING INNER SPLINES.May 26, 1999 · N6251V · Bell 206L3SDR ASAA9910101turbine · failedANC - ON TAKEOFF OF FLIGHT 7802, JUST AFTER REDUCING POWER FOR CLIMB CREW REPORTED THE NR 1 ENGINE POPPED AND WAS LOST. SHUTDOWN NR 1 ENGINE AND FOUND TURBINE BLADE DAMAGE. REPLACED NR 1 ENGINE. THE ENGINE WAS ROUTED TO AEROTHRUST CORP FOR INSPECTION AND REMay 19, 1999 · N730AS · Boeing 737290CSDR 2000ZZZX756Shroud · damagedSHROUD HAD EXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 19, 1999 · N911BY · Bolkms BK117A4SDR 20000712SH040Bearing · crackedPART REJECTED FOR CRACKS IN 2 PLACES. 2 CRACKS ON OUTSIDE DIAMETER WALL IN CLOSE LINEAR ALIGNMENT - 0.060 INCH THICK. CRATER TYPE CRACK IN INSIDE DIAMETER FLANGE, 0.125 INCH DIAMETER. (X)May 10, 1999SDR ERAA062389Wheel · mismanufacturedNEW WHEEL THAT WAS ISSUED TO AIRCRAFT COULD NOT BE INSTALLED BECAUSE WHEEL HAD OVERSIZE DIAMETER AT BLADE TIPS.May 10, 1999 · N127EH · Bolkms BO105SSDR 2000ZZZX428Spring · wornSPRING WORN BEYOND SERVICEBLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 3, 1999 · N117MA · Bolkms BK117A3SDR 2000ZZZX427Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 3, 1999 · N117MA · Bolkms BK117A3SDR 99ZZZX2429Turbine Disc · crackedDURING INSPECTION OF PARTS FOR THIS ENGINE, FOUND THE HPI T/DISC HAD CRACKING FROM ITS AIR METERING HOLES AND BELLING OF THE FRONT SECTION. THESE FEATURES HAVE BEEN CAUSED BY A FIRE WHICH WAS PRESENT IN THE NR 6 BEARING COMPARTMENT.May 1, 1999 · Airbus A320212SDR AU990748Blade · failed(AUS) LEFT ENGINE FAILED. INVESTIGATION FOUND FAILURE OF ONE COMPRESSOR TURBINE BLADE DUE TO FATIGUE. DAMAGE CAUSED TO THE OTHER BLADES.Apr 28, 1999 · Beech C90SDR AU990419Turbine · damaged(AUS) LEFT ENGINE FAILED WITH AN EXPLOSIVE SOUND AND SPARKS FROM THE EXHAUST. INITIAL INVESTIGATION REVEALED EXTENSIVE DAMAGE TO THE POWER SECTION.Apr 28, 1999 · Beech C90SDR CA991208074Blade · broken(CAN) OPERATOR HAS IMPOSED A LIMIT OF 36 GRAMS MINIMUM WEIGHT ON ALL THE BLADES AT INSTALLATION. A PERIODIC STRUM CHECK IS ALSO IMPOSED.Apr 24, 1999 · Skrsky S64ESDR HEEA061872Nozzle · crackedPILOT HEARD LOUD BANG WHILE IN CRUISE FLIGHT, SECURED NR 1 ENGINE AND MADE SINGLE ENGINE LANDING. N1 AND N2 LOCKED DUE TO GP ROTOR FAILURE. SUSPECTED CAUSE WAS NR 2 NOZZLE DIAPHRAGM CRACKED 360 DEGREES AROUND, MOVING FORWARD CONTACTING NR 2 WHEEL CAUSING F.OApr 23, 1999 · N8197X · Bolkms BO105SSDR IXXA9900007Turbine · failedEN ROUTE FROM PKWA TO PHIK DURING CLIMB, A LOUD NOISE WAS HEARD FROM THE NUMBER TWO ENGINE, ACCOMPANIED BY INCREASING ENGINE GAS TEMPERATURE AND A DECLINE IN OIL PRESSURE. THE FLIGHT CREW SECURED THE ENGINE FOLLOWING COMPANY PROCEDURES AND CONTINUED TO PHIK FApr 20, 1999 · N728PL · Doug DC862SDR ERAA061869Sump Cover · mismanufacturedSUMP COVER COULD NOT BE INSTALLED DUE TO LOOSE DEBRIS AND FLAKING OVERSPRAY INSIDE OF COVER. ONE HOLE CLOGGED.Apr 16, 1999 · N148EH · Bolkms BO105ASDR 99ZZZX2392Shield · crackedCRACKS DETECTED DURING FLUORESCENT PENETRANT INSPECTION. REF: PACIFIC SKY SUPPLY, P. O. NR 26388.Apr 15, 1999 · Bell 206BSDR 99ZZZX2069Seal · failedTHE LP ROTOR WAS FREE TO ROTATE AND THE HP ROTOR WAS CONFIRMED AS BEING SEIZED. THERE WAS NO APPRECIABLE BACKLASH NOTED WHILE ATTEMPTING TO ROTATE THE HP ROTOR. THE HIGH SPEED GEARBOX MOUNTED ACCESSORIES WERE REMOVED AND ON COMPLETION, THE ROTOR WAS STILL NOApr 14, 1999 · Fokker F27MK100SDR ERAA061867Gp Support · misoverhauledGP SUPPORT SENT FOR OVERHAUL 8-4-98, COULD NOT BE INSTALLED DUE TO ROUGH SURFACE AT NR 8 OIL TUBE SEAL, AND SUMP NUT E-RING SEAT.Apr 12, 1999 · N148EH · Bolkms BO105ASDR 99ZZZX1829Blade · damagedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 4,795.7.Apr 12, 1999SDR TWAA9906401Turbine · failedDURING TAKEOFF, THERE WAS A LOUD NOISE FROM THE NUMBER 1 ENG FOLLOWED BY HIGH EGT INDICATION. THE ENG WAS SHUT DOWN AND THE FLIGHT RETURNED TO STL. FOUND THE TURBINE HAD FAILED. REPLACED THE ENGINE. CHECK-C 2-13-99 MCI.Apr 3, 1999 · N914TW · Doug DC982SDR 99ZZZX1731Stator · crackedTHE PART HAD BEEN SENT IN FOR AN OVERHAUL EVALUATION, BUT VISUAL INSPECTION OF THE TRAILING EDGES SHOWED SEVERE BOWING. THE TRAILING EDGE THICKNESSES WERE VERY GOOD SO THAT MATERIAL THICKNESS WAS NOT THE CAUSE. THE OPERATOR REPORTED 111.1 HOURS SINCE OVERHAUMar 31, 1999SDR 20000712SH032Bearing · crackedPART REJECTED AT F.P.I. DUE TO A CRACK ON TOP SURFACE, .0175 INCH. (X)Mar 30, 1999SDR 20000712SH030Seal · crackedPART REJECTED AT F.P.I. DUE TO A CRACK 0.180 INCH ON TOP SURFACE. (X)Mar 30, 1999SDR 99ZZZX1563Blucket · failedRECEIVED SLIP IN ENGINE WITH FOD IN THE FAN AND COMPRESSOR SECTION. THE FOD APPEARS TO BE CAUSED BY SEPARATION OF FAN BLADE (S/N 779CE) IN THE HOT SECTION PART OF THE BLADE. THE FAN BLADES ARE EDDY CURRENT INSPECTED AT EACH HOT SECTION (1,000 HOURS). THE LAMar 29, 1999SDR CA990412031Turbine · seized(CAN) ON TAKEOFF, THE CREW NOTICED LOSS OF N2 INDICATION ON NR 2 ENGINE AND ABORTED TAKEOFF. THE ENGINE WAS REMOVED AND PRELIMINARY INSPECTION REVEALED N2 LOCKUP, INDICATIVE OF HP TURBINE FAILURE. HOT METALLIC FRAGMENTS MIGRATED AFT AND EMBEDDED IN THE LP STMar 28, 1999SDR 99ZZZX3789Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 28, 1999 · N420MB · Bolkms BK117A3SDR 99ZZZX3788Spring · wornSPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 28, 1999 · N420MB · Bolkms BK117A3SDR 99ZZZX3787Bearing · wornBEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 28, 1999 · N420MB · Bolkms BK117A3SDR 99ZZZX1801Rotor Assy · damagedSECONDARY DAMAGE TO LAB SEAL FAILURE. EXCESSIVE DAMAGE TO KNIFE EDGES AND GP BLADES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. PART TC: 1,061.9.Mar 28, 1999 · N420MB · Bolkms BK117A3SDR AU990416059Blade · separated(AU) ENG SHUTDOWN IN-FLIGHT AFTER A LOUD BANG, FOLLOWED BY A LOSS OF OIL PRESSURE AND AN INCREASE IN ITT. POST- FLIGHT INSP REVEALED ENG HAD SUFFERED A MAJOR INTERNAL FAILURE. DISASSY OF ENG REVEALED ENG HAD MAJOR INTERNAL DAMAGE TO ALL ROTATING ASSY. DAMAGMar 24, 1999SDR 99ZZZX2111Duct · failedDEFECT WAS FOUND DURING A REGULAR INSPECTION. UPON VISUAL INSPECTION THROUGH EXHAUST DUCTS, NOTICED THE 'SKI SLOPE' INNER SECTION DUCT ASSY PN 31068200-01 MISSING THE AFT PORTION OF ITS TAPERED CONE. NOTED THE POWER TUBE DAMAGED AND ALL BLADES DESTROYED. AMar 24, 1999 · N53MD · Beech B100SDR 99ZZZX2108Duct · failedTHE DEFECT WAS FOUND DURING A REGULAR INSPECTION. UPON VISUAL INSPECTION THROUGH THE EXHAUST DUCTS, NOTED THE INNER SECTION DUCT ASSY PN 3106820-01 HAD SPLIT, BROKE UP AND CURLED UP. THE END OF THIS CURLED UP METAL PIECE OF THE DUCT HAD COME IN CONTACT WITH Mar 24, 1999 · N900DN · Beech A100SDR ERAA061855Collector · mismanufacturedFOURTH TIP PATH AREA OUT OF ROUND ON EXHAUST COLLECTOR. UNDERSIZED.Mar 23, 1999 · N151EH · Bolkms BO105SSDR QXEA9900509Turbine Blade · failedMWH - A/C EN ROUTE FROM SEA TO BIL, WHILE CLIMBING THROUGH 26,000 FT HEARD A BANG AND RIGHT ENGINE BEGAN TO VIBRATE, TGT ON RISE. SHUT DOWN ENGINE AND DIVERTED TO MWH. MAINTENANCE REPLACED THE ENGINE. A TURBIN BLADE ON THE NR 2 DISK OF THE LP HAD EXITED THEMar 20, 1999 · N481US · Fokker F28MK4000SDR AU990351Turbine · failed(AUS) RIGHT ENGINE TURBINE FIR TREE ROOT FAILURE RESULTED IN TURBINE BLADE LOSS. EXTENSIVE FOD AND OUT OF BALANCE DAMAGE TO HIGH PRESSURE AND LOW PRESSURE TURBINE ASSEMBLIES.Mar 19, 1999 · Lear 35ASDR CA990330011Turbine · failed(CAN) DURING LINE-UP WHEN TAKEOFF POWER WAS APPLIED, AT 1.4 EPR, A LOUD BANG WAS HEARD FOLLOWED BY A RISE IN EGT TO 585 DEGREES CELSIUS, ON NR 2 ENGINE. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTION FOUND THE T4 TURBIMar 18, 1999 · Boeing 727227SDR 99ZZZM247Turbine · damageFLT 611 - IND-EWR - NR 1 ENGINE VIBRATES BETWEEN 45 PERCENT AND 68 PERCENT N1. INSPECTED ENGINE, FOUND TURBINE DAMAGE. REMOVED AND REPLACED NR 1 ENGINE. (M)Mar 16, 1999 · N436EX · Boeing 72751CSDR TWAA9903602Turbin · damagedTAKEOFF WAS ABORTED AT ABOUT 60 KTS DUE TO NUMBER 3 ENGINE LOSS OF POWER AND VIBRATION. FOUND THE TURBINE HAD FAILED, WITH DEBRIS IN THE TAILPIPE. DAMAGE WAS SUSTAINED TO THE TAIL PIPE, COWLING AND PYLON. REPLACED THE ENGINE AND ACCOMPLISHED METAL REPAIRS. Mar 8, 1999 · N54336 · Boeing 727231SDR CA990318070Turbine Blade · failed(CAN) NR 1 ENGINE SHUTDOWN IN-FLIGHT, REPORTED LP TURBINE BLADE FAILURE. NO OTHER INFO AVAILABLE. FURTHER REPORT TO FOLLOW.Mar 7, 1999 · Fokker F28MK3000SDR CA990318012Blade · failed(CAN) IN CRUISE AT FL 325, THE CREW HEARD A LOUD BANG FROM NR 1 ENGINE, FOLLOWED BY ALL ENGINE PARAMETERS DROPPING OFF. ENGINE WAS SHUTDOWN AND AIRCRAFT CONTINUED TO ITS DESTINATION WHERE AN UNEVENTFUL LANDING WAS CARRIED OUT. INITIAL INSPECTION FOUND NR 1 EMar 7, 1999 · Fokker F28MK3000SDR USAAD99047Compressor · damagedBDL-PIT - FLT 1147 - AFTER TAKEOFF AND CLIMBING THROUGH 26,000 FT, THE AIRCRAFT BEGAN TO VIBRATE. THE RIGHT ENGINE N1 INCREASED 6 PERCENT AND A SHUDDER WAS FELT IN THE COCKPIT. SHORTLY THEREAFTER ALL WAS NORMAL. WHEN THE AIRCRAFT LEVELED AT 28,000 FT THE SAMar 6, 1999 · N830US · Doug DC982SDR 99FDEA00077Turbine · failedNR 2 ENGINE WAS SHUTDOWN VIBRATION ENDED WITH ENGINE SHUTDOWN. ENGINE TURBINE BLADES BROKEN AND CRACKED. *S/D* REMOVED AND REPLACED NR 2 ENGINE PER WORK CARD 70T0002, OPER AND LEAK CK GOOD.Feb 26, 1999 · N213FE · Boeing 7272S2FSDR F3LA99017Housing · crackedPHX - DURING C-CHECK INSPECTION, REPORTED 9 INCH CRACK ON NR 6 TURBINE BEARING EXHAUST CASE HOUSING BETWEEN 9-12 O'CLOCK POSITION ON NR 1 ENIGNE. MAINTENANCE REPAIRED PER JT8D MM 72-54, PARAGRAPH 4. (M)Feb 21, 1999 · N214AU · Boeing 737201SDR CA990219014Turbine Wheel · spalled(CAN) DURING TAKEOFF, THE PILOT NOTICED A TEMPORARY TORQUE INCREASE FROM NR 2 ENGINE. THE THROTTLE WAS REDUCED TO IDLE AND THE FLIGHT WAS ABORTED. DURING ENGINE RUN DOWN, THE NR 2 PROPELLER WAS SLOWING DOWN IN AN ERRATIC MANNER. POST-FLIGHT INSPECTION FOUNDFeb 16, 1999 · Beech 65A90SDR RAAA99E9013Turbine · failedEN ROUTE DUT TO ANC, NR 4 ENGINE SHUT DOWN INFLIGHT DUE OIL LOSS. FOUND 1, 4TH STAGE TURBINE BLADE SEPARATED APPROX .5 INCH FROM BLADE ROOT. RTBS DENTED BUT NOT PENETRATED. REAR TURBINE BEARING OIL SUPPLY LINE BROKEN AT AFT FLANGE FITTING. CHANGED ENGINE PFeb 14, 1999 · N1968R · Lkheed 188C
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