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 DL73K970106Turbine · failedDURING CLIMBOUT PASSING 12,000 FT, RT ENG AUDIBLE BANG WITH ENG INDICATIONS OF UNWINDING N2, N1 EGT 350 C, AND RAPID LOSS OF OIL QTY, AIRSPEED 340 KTS. PERFORMED ENG SHUTDOWN AS PER POM. ATL MTC CREW REPLACED ENG PER R/C DECK TRANS 3T214.Jan 17, 1997 · N315DL · Boeing 737232SDR CA970325019Guide Vane · failed shroud(CAN) ON CLIMB OUT #1 ENGINE FAILED. MAINTENANCE FOUND EXHAUST CONE MISSING AND LOW PRESSURE TURBINE DAMAGE. #1 ENGINE REPLACED DUE TO MASSIVE LOW PRESSURE TURBINE FAILURE AS A RESULT OF A STAGE 4 NOZZLE GUIDE VANE INNER SHROUD FAILURE.Jan 17, 1997 · Boeing 747238BSDR AU970069Blade · damaged(AUS) ALL COMPRESSOR TURBINE BLADES DAMAGED BY FOD - DAMAGE INCLUDED BENDING OF BLADE LEADING EDGES AND MISSING SECTIONS - INVESTIGATION FOUND FOD TO BE A POWER TURBINE CONTAINMENT RING RETAINING BOLTJan 17, 1997 · Emb EMB110P2SDR 97ZZZX522Bearing · wornINSP FOUND OD OF BEARING BELOW MIN DIMENSION AND INTERNAL CLEARANCE TOO MUCH. 0.0034 INCH MAX AND BEARING WAS 0.00364 INCH. ALLOWED STATOR SEAL TO BE RUBBED BY 35/37 ROTATING SEAL.Jan 16, 1997SDR 97ZZZX521Energy Ring · worn tangsTHE 4 TANGS ON THE ENERGY ABSORBING RING ARE WORN ON WIDTH AND ONE IN HEIGHT AND WORN INTO THE PT SUPPORT. SUBMITTER STATES THIS HAPPENS ON ALL C30 TURBINES. NEEDS MORE SUPPORT.Jan 16, 1997SDR CA970122004Pt Blade · fractured(CAN) THE OPERATOR OBSERVED POWER TURBINE DAMAGE AND THE ENGINE WAS SENT FOR INVESTIGATION. DISASSEMBLY REVEALED THE ENGINE SUFFERED A PRIMARY FAILURE OF ONE POWER TURBINE BLADE. THE FRACTURE WAS THROUGH THE CORED POCKET APPROXIMATELY 1/4" ABOVE THE INNER PLATJan 14, 1997SDR 98ZZZX123Shaft · crackedAXIAL CRACK 30CM LONG BEGINNING IN A HOLE AFTER THE THREAD AND GOING FROM THE REAR OF THE SHAFT AND DEFORMATION OF THE SHAFT. PARTS CURRENTLY UNDER SNECMA/CFMI INVESTIGATION.Jan 12, 1997SDR ERAA97374Support · groovedP.T. SUPPORT WAS REPAIRED AND RETURNED TO ERA 12-12-96 . P.T. SUPPORT HAS GROOVE IN SEALING SURFACE FOR LARGE "U" RING.Jan 10, 1997 · N291EH · Bolkms BO105ASDR 9700581155Turbine · damagedDURING DESCENT, THE NR 2 ENGINE EXPERIENCED A STALL AND POWER LOSS. PILOT ELECTED TO SHUT DOWN AND THEN RESTART NR 2 ENGINE. AN UNEVENTFUL LANDING FOLLOWED. MAINTENANCE BORESCOPE INSPECTION REVEALED TURBINE SECTION DAMAGE. REPLACED NR 2 ENGINE.Jan 10, 1997 · N155US · Doug DC1040SDR P5CA9700031Exhaust Case · crackedNR 1 ENGINE S-RAIL AT 12 O'CLOCK POSITION HAS A VERTICAL CRACK. OK FOR 1,000 HOUR REINSPECTION PER BOEING MAINTENANCE MANUAL 72-53-02.Jan 9, 1997 · N857FT · Boeing 747132SDR P5CA9700030Exhaust Case · crackedNR 1 ENGINE S-RAIL AT 6:00 O'CLOCK POSITION HAS A HORIZONTAL CRACK. REPAIRED PER BOEING MAINTENANCE MANUAL 72-53-01.Jan 9, 1997 · N857FT · Boeing 747132SDR P5CA9700029Exhaust Case · crackedNR 1 ENGINE R-RAIL AT THE SIX-THIRTY POSITION HAS A HORIZONTAL CRACK. REPAIRED PER BOEING MAINTENANCE MANUAL 72-53-01.Jan 9, 1997 · N857FT · Boeing 747132SDR HEEA978819Nozzle · defectiveENGINE REMOVED DUE TO 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: EXCESSIVE RUNOUT BEYOND SERVICEABLE LIMITS ON #2 NOZZLE 1ST STAGE (.009) AND 2ND STAGE (.006) TIP PATHS. CRACKED BETWEEN DIAPHRAGM AND INNER BAND AS MARKED. INSTALLED A DALLJan 7, 1997 · N39122 · Bell 206B3SDR CALA9700008T3 Blade · failedTHE NR 1 ENGINE EXPERIENCED A TURBINE FAILURE AFTER TAKEOFF FROM IAH. THE AIRCRAFT WAS RETURNED TO IAH. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. TEARDOWN REVEALED PRIMARY CAUSE OF ENGINEJan 3, 1997 · N72824 · Doug DC982SDR 97ZZZX541Turbine · crackedDURING REPLACMENT OF THE NR 1 NOZZLE, A CRACK WAS FOUND IN THE P/T SUPPORT BODY JUST AFT OF THE 6 AND 7 BEARING. SUMP BOSS UNIT WAS SENT IN FOR REWORK.Jan 3, 1997 · N5074R · Hughes 369DSDR USAABB97001Bolt · missingGSO - FL 205 - DURING CLIMB-OUT FROM CLT, PASSING THROUGH FL 230, CREW RECEIVED THE FIRE WARNING FROM THE NR 2 ENG. CREW FIRED BOTH BOTTLES, BUT THE WARNING LIGHT REMAINED ILLUMINATED. THE ENG WAS SECURED. THE LIGHT EXTINGUISHED AS THE A/C DESCENED THROUGH Jan 2, 1997 · N603AU · Boeing 757225SDR 97ZZZX577Blade · failedINSP FOR ENG FAILURE FOUND ALL HPT BLADES BROKEN AT PLATFORM. IT APPEARS THAT NR 8 BLADE S/N 4L764 WAS THE FIRST BLADE TO FAIL. CAUSE OF FAILURE UNKNOWN AT THIS TIME. OEM AND OWNER ARE DOING EXTENSIVE INVESTIGATION.Jan 1, 1997SDR 9700023229Turbine · damagedDURING TAKEOFF, THE NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL. TAKEOFF WAS ABORTED AT 70 KNOTS. MAINTENANCE FOUND TURBINE SECTION DAMAGE. REPLACED NR 2 ENGINE.Jan 1, 1997 · N329NW · Airbus A320211SDR CALA9601922Seal · leakingTHE NR 1 ENGINE WAS SHUTDOWN DUE TO LOSS OF OIL WHILE EN ROUTE. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAKING FROM NR 1 ENGINE NR 6 BEARING GIT SEAL. THE NR 6 BEARING GIT SEAL WAS REMOVED AND REPLACED. THE ENGINE WAS SERVICED WDec 31, 1996 · N10251 · Boeing 737291SDR 97ZZZX4138Module · cokingAFTER NORMAL SHUT DOWN OF ENGINE, THEN NORMAL START OF ENGINE, HEARD GRINDING NOISE IN ENGINE 15-20 PERCENT NG; AT ABOUT 25 PERCENT NG, ENGINE SLOWED WITH NORMAL BATTERY VOLTAGE. START ABORTED. FOUND BY MANUAL TURNING OF GAS GENERATOR AND AT HOT TEMP OF ENGIDec 29, 1996 · N92LG · Snias AS350B2SDR HEEA968775Nozzle Vames · burntENGINE REMOVED DUE TO CYCLED NR 1 AND NR 2 WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED: (1) ERODED ALL LEADING EDGE AND SULPHIDATION ON 17 OF THE NR 1 WHEEL BLADES. (2) ERODED LEADING EDGE 11 AND BURNT TRAILING EDGE ON 7 OF THE NR 1 NOZZLE VANES. PARTS SDec 27, 1996 · N81982 · Bolkms BO105SSDR HEEA968774Wheel · blades errodedENGINE REMOVED DUE TO CYCLED #1 AND #2 WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED: (1) ERODED ALL LEADING EDGE AND SULPHIDATION ON 17 OF THE #1 WHEEL BLADES (2) ERODED LEADING EDGE 11 AND BURNT TRAILING EDGE ON 7 OF THE #1 NOZZLE VANES. PARTS SENT TO Dec 27, 1996 · N81982 · Bolkms BO105SSDR HEEA968773Support · mismanufacturedRECEIVING INSPECTION REVEALED: I.D. MEASURED .049-.071 BELOW SPECS ON G.P. SUPPORT AT #2 NOZZLE TANG SLOTS. SPECS (7.63) #2 NOZZLE WILL NOT FIT INTO SUPPORT. INSTALLED DALLAS AIRMOTIVE OVERHAULED G.P. SUPPORT.Dec 27, 1996 · N8594X · Bell 206L3SDR CA970114002Gp Section · damaged(CAN) AIRCRAFT LANDED AND ENGINE WAS SHUTDOWN. ON THE NEXT START THE ENGINE WAS GOING TO A HOT START, SO THE START WAS ABORTED. ON THE SECOND START ATTEMPT AN ENGINE VIBRATION WAS FELT AND THE EGT BEGAN TO RISE RAPIDLY AND COULD NOT BE CONTAINED BY CUTTING OFFDec 27, 1996 · Bell 205A1SDR 97ZZZX2428Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Dec 27, 1996 · N202HN · Bolkms BK117A3SDR 97ZZZX2427Turbine · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 9 -0.026 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 3,172.3.Dec 27, 1996 · N202HN · Bolkms BK117A3SDR 97ZZZX2425Spring · wornSEAL RING EXPANDER SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Dec 27, 1996 · N202HN · Bolkms BK117A3SDR 97ZZZX771Seal · crackedSEAL CRACKED AT FLANGE. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST THE 1ST STAGE ROTOR ASSY. INCREASED TENSION CAUSES CRACKING AT FLANGE. THIS IS A CRITICAL LIFE-LIMITED COMPONENT. LIMIT 20,000 CYCLES. Dec 24, 1996SDR CA970107010Pt Blade · fractured(CAN) OPERATOR NOTICED DAMAGE IN THE POWER TURBINE AND THE ENGINE WAS SHIPPED FOR INVESTIGATION AND OVERHAUL. DISASSEMBLY FOUND THE ENGINE HAD SUFFERED THE FAILURE OF TWO PT1 BLADES. THEY HAD FAILED A SHORT DISTANCE BELOW THE OUTER PLATFORM. THIS IS AN UNUSUALDec 20, 1996SDR CA961231002Lp Turbine · damaged(CAN) DURING BOROSCOPE INSPECTION THE LP TURBINE BLADES WERE FOUND DAMAGED AT THE TIPS. THE ENGINE WAS REPLACED.Dec 20, 1996 · Dhav DHC8301SDR 97ZZZX1020Air Seal · crackedINSPECTED 2ND STAGE HPTR AIR SEAL AND FOUND CRACK INDICATION AS DESCRIBED IN PW4000 ALL OPER WIRE NOV 14, 1996 NR C301G961114XFR. MFG RECOMMENDATIONS SEE ASB PW4 ENGA72-628.Dec 12, 1996SDR 97ZZZX1019Air Seal · crackedINSPECTED 2ND STAGE HPTR AIR SEAL AND FOUND CRACK INDICATION AS DESCRIBED IN PW4000 ALL OPER WIRE NOV 14, 1996 NR C301G961114XFR. MFG RECOMMENDATIONS SEE ASB PW4ENG172-628.Dec 12, 1996SDR 97ZZZX1018Air Seal · crackedINSPECTED 2ND STAGE HPTR AIR SEAL AND FOUND CRACK INDICATION AS DESCRIBED IN PW4000 ALL OPER WIRE NOV 14, 1996 NR C301G961114XFR. MFG RECOMMENDATIONS SEE ASB PW4 ENGA72-628.Dec 12, 1996SDR 97ZZZX1017Air Seal · crackedINSPECTED 2ND STAGE HPTR AIR SEAL AND FOUND CRACK INDICATION AS DESCRIBED IN PW4000 ALL OPER WIRE NOV 14, 1996 NR C301G961114XFR. MFG RECOMMENDATIONS SEE ASB PW4 ENGA72-628.Dec 12, 1996SDR 97ZZZX1016Air Seal · crackedINSPECTED 2ND STAGE HPTR AIR SEAL AND FOUND CRACK INDICATION AS DESCRIBED IN PW4000 ALL OPER WIRE NOV 14, 1996 NR C301G961114XFR. MFG RECOMMENDATIONS SEE ASB PW4 ENGA72-628.Dec 12, 1996SDR CA961220015Blades · multiple failure(CAN) THE OPERATOR REPORTED DURING A START ATTEMPT THE PROP DID NOT ROTATE. THE OPERATOR REMOVED THE POWER TURBINE AND FOUND EVIDENCE OF DAMAGE. THE ENGINE WAS SENT FOR INVESTIGATION AND REPAIR. ENGINE DISASSEMBLY FOUND MULTIPLE FAILURES OF THE LP TURBINE BLADDec 11, 1996SDR HEEA968649Nozzle · out of limitsTURBINE REMOVED DUE TO 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: GROOVED AND EXCESSIVE RUNOUT BEYOND SERVICEABLE LIMITS ON #4 NOZZLE 3RD STAGE TIP PATH (T/R .0055) AND 4TH STAGE TIP PATH (T/R .005) MAX ALLOWABLE TIP PATH RUNOUT.004. INSTDec 10, 1996 · N9190Y · Bolkms BO105SSDR ERAA96362Bearing · galledROLLERS ARE GALLED & GROOVED.Dec 10, 1996 · N291EH · Bolkms BO105ASDR CA961220016Bearing · fractured(CAN) THE OPERATOR NOTICED A GRINDING NOISE ON SHUTDOWN AND METAL FILINGS WERE FOUND IN THE MAIN OIL PRESSURE FILTER AND ON THE CHIP DETECTOR. THE ENGINE WAS SENT FOR INVESTIGATION. THE CAUSE OF THE GRINDING NOISE AND METAL IN THE FILTERS WAS FOUND TO BE THEDec 9, 1996SDR 97ZZZX810Turbine · failedMKE/MKC - CHARTER FLIGHT. PILOT REPORT CARD NR 96-8, ITEMS 1-2, ENGINE NR 2 FAILURE, LOUD BANG FOLLOWED BY A RAPID AND COMPLETE LOSS OF POWER. FAILURE AT 1843Z WITH 3 PASSENGERS ON BOARD. AIRFRAME TIME APPROX 7,083.2 HOURS, END OF PILOT REPORT. FLIGHT DIVEDec 5, 1996 · N523MA · Hwksly BH125600ASDR 96ZZZX6151Engine · failedPILOTS REPORT LOUD BANG FOLLOWED BY LOSS OF POWER ON RT ENGINE FAILURE AT 1843Z 12-05-96. AFTER A/C LANDED, PILOTS REPORT TURBINE WHEEL DAMAGE. SUBMITTER STATED UNABLE AT THIS TIME TO DETERMINE WHAT CAUSED THE FAILURE. A/C LANDED AT MADISON,WI WITHOUT INCIDDec 5, 1996 · N523MA · Hwksly BH125600ASDR 97ZZZX312Bearing · failedDURING POST FLIGHT WALK AROUND WHEN LEFT PROP WAS MOVED, A GRINDING NOISE WAS HEARD COMING FROM ENGINE POWER SECTION. MAIN OIL SCREEN WAS INSPECTED AND FOUND CONTAMINATED WITH METAL. ENGINE WAS REPLACED AND SENT TO PRATT AND WHITNEY CANADA FOR REPAIR.Dec 4, 1996 · N833CA · Beech 1900DSDR WWMA9600101Turbine · failedRIGHT ENGINE OIL PRESSURE DECREASED TO NEAR ZERO IN FLIGHT. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO FIELD WITHOUT INCIDENT. MAINTENANCE FOUND THE RIGHT ENGINE TO BE 4 QUARTS LOW OF OIL. NO LEAKS WERE NOTED BUT A LARGE AMOUNT OF OIL WAS FOUND IDec 3, 1996 · N324AE · Saab 340BSDR HEEA968607Support · defectiveRECEIVING INSPECTION REVEALED: COATING LIFTING ON G.P. SUPPORT SEAL BORE ID. INSTALLED A DALLAS AIRMOTIVE OVERHAULED G.P. SUPPORT.Dec 3, 1996 · N42EA · Bell 206L3SDR CA961216040Turbine Blade · fractured(CAN) THE ENGINE WAS SHIPPED FOR INVESTIGATION AND REPAIR AFTER THE OPERATOR FOUND THERE WAS A FRACTURE OF A PT1 TURBINE BLADE. DISASSEMBLY FOUND THE FRACTURED PT BLADE TO BE A WALBAR RECOATED BLADE (P/N 3105103-01-R2W) AND THE FAILURE OCCURRED APPROXIMATELY 0Dec 2, 1996SDR IXXA9600168Turbine Blades · damagedSHORTLY AFTER ROTATION DEPARTING FLL, THE NUMBER 2 ENGINE EXPERIENCED A HEAVY COMPRESSOR STALL. THE ENGINE REPORTILY FLAMED OUT. THE CREW SECURED THE ENGINE IAW COMPANY PROCEDURES AND RETURNED TO FLL. GROUND INSPECTION BY MAINTENANCE FOUND METAL IN THE TAILNov 27, 1996 · N820BX · Doug DC871SDR HEEA968587Wheel · defectiveENGINE REMOVED DUE TO COMPRESSOR OVERHAUL. PERFORMED HOT END INSPECTION ON TURBINE DUE TO COMPRESSOR FOD. UPON INSPECTION OF TURBINE NOTED MINOR SULFIDATION ON ALL #1 WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Nov 25, 1996 · N54197 · Bolkms BO105SSDR HEEA968586Wheel · failedENGINE REMOVED DUE TO TURBINE WHEEL FAILURE. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: #1 WHEEL EXHIBITS A RIM FAILURE. CRACK ORIGINATED AT RIM AND PROGRESSED ON THE LEADING EDGE SIDE 3/8" UNTIL OVERLOAD, PROGRESSING AROUND A1/16" X 1/4" CASTINGNov 25, 1996 · N911FL · Bolkms BO105SSDR 97ZZZX932Rotor 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, CORRECTED PROBLEM. PART TOTAL CYCLES, 4,271.2.Nov 25, 1996 · N586BH · Bolkms BK117A4SDR 97ZZZX2744Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 20 +0.010 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 2,294.2.Nov 25, 1996 · N586BH · Bolkms BK117A4
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