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 97ZZZX3550Wheel · erodedENGINE PRODUCING LOW POWER. REMOVED TURBINE ASSY AND SEPARATED GAS PRODUCER FROM POWER TURBINE. FOUND NR 1 TURBINE WHEEL SEVERELY CORRODED AFTER ONLY 708.5 HRS TT. WHEEL LIFE IS 1775.0 HRS. TIP CLEARANCE WAS ALSO EXCESSIVE. NO EVIDENCE OF FOD. LEADING EDJul 10, 1997 · N8WH · Agusta A109A2SDR 97ZZZX3549Nozzle · failedENGINE PRODUCING LOW POWER. INSPECTED 2ND STAGE TURBINE NOZZLE. FOUND TURBINE WHEEL SHROUD FLAKING AND SEPARATING CAUSING EXCESSIVE TURBINE WHEEL TIP CLEARANCE. FOUND OUTER BAND CRACKED RADIALLY CAUSING GAS PATH LEAKAGE. THIS PART SHOULD MAKE 1,750 HRS AT Jul 10, 1997 · N8WH · Agusta A109A2SDR CA970715031Turbine Blade · fractured(CAN) ENGINE DID NOT MEET POWER ASSURANCE LIMITS SO IT WAS SENT TO R&O. DISASSY FOUND- ENGINE HAD SUSTAINED 2 (2) LP TURBINE BLADE FRACTURES WITH- LOSS OF- OUTER 40 PCT OF BOTH AIRFOILS.THIS RESULTED IN SECONDARY DAMAGE TO- NEIGHRING & DOWNSTREAM COMPONENTS.- Jul 8, 1997SDR CA970715032Bearing Housing · burning damage(CAN) THE ENGINE WAS SENT TO R&O FOR REPLACEMENT OF A TIME EXPIRED HP IMPELLER AND FOR AN HSI. DISASSEMBLY FOUND THERE WAS UNUSUAL DAMAGE TO THE PT1 STATOR PT1 DISK. THERE HAD BEEN A FIRE IN THE FORWARD CAVITY CAUSED BY OIL LEAKAGE FROM THE #6 AND #7 BEARING AJul 4, 1997SDR CA970715029Turbine · damaged(CAN) AFTER TAKEOFF DURING CLIMB AT 1000 FEET THERE WAS A LOUD BANG FROM #1 ENGINE FOLLOWED BY HIGH VIBRATION AND LOSS OF POWER. #1 ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO ITS POINT OF DEPARTURE.VISUAL INSPECTION SHOWED TURBINE STAGES DAMAGED. ENGINE Jul 4, 1997 · Lkheed 1011385114SDR HEEA0010378Nozzle · over specRECEIVING INSPECTION REVEALED: MEASURED .015 OVER SPECS (4.445 - 4.450) ON #1 NOZZLE DIMENSION -AM-.Jul 1, 1997SDR HEEA0010377Nozzle · over specRECEIVING INSPECTION REVEALED: MEASURED .022 OVER SPECS (8.480 - 8.470) ON #4 NOZZLE O.D. INSTALLED A DALLAS AIRMOTIVE OVERHAULED #4 NOZZLE.Jul 1, 1997 · N5742N · Bell 206L1SDR 97ZZZX4722Blade · failedIN-FLIGHT SHUT DOWN AND LOCK-UP OF ENGINE OCCURRED. ENGINE SENT TO THIS FACILITY FOR INSPECTION AND REPAIR. FOUND 4 EACH 3072712-1 HP TURBINE BLADES HAD RELEASED AT MID-SPAN OF BLADES. THIS WAS A CONTAINED FAILURE. THE BLADES AND TURBINE DISK WERE NEW AT LJun 30, 1997 · N42EH · Amd FALCON10SDR 97ZZZX4721Blade · failedIN-FLIGHT SHUT DOWN AND LOCK-UP OF ENGINE OCCURRED. ENGINE SENT TO THIS FACILITY FOR INSPECTION AND REPAIR. FOUND 4 EACH 3072712-1 HP TURBINE BLADES HAD RELEASED AT MID-SPAN OF BLADES. THIS WAS A CONTAINED FAILURE. THE BLADES AND TURBINE DISK WERE NEW AT LJun 30, 1997 · N42EH · Amd FALCON10SDR 97ZZZX4720Blade · failedIN-FLIGHT SHUT DOWN AND LOCK-UP OF ENGINE OCCURRED. ENGINE SENT TO THIS FACILITY FOR INSPECTION AND REPAIR. FOUND 4 EACH 3072712-1 HP TURBINE BLADES HAD RELEASED AT MID-SPAN OF BLADES. THIS WAS A CONTAINED FAILURE. THE BLADES AND TURBINE DISK WERE NEW AT LJun 30, 1997 · N42EH · Amd FALCON10SDR 97ZZZX4719Blade · failedIN-FLIGHT SHUT DOWN AND LOCK-UP OF ENGINE OCCURRED. ENGINE SENT TO THIS FACILITY FOR INSPECTION AND REPAIR. FOUND 4 EACH 3072712-1 HP TURBINE BLADES HAD RELEASED AT MID-SPAN OF BLADES. THIS WAS A CONTAINED FAILURE. THE BLADES AND TURBINE DISK WERE NEW AT LJun 30, 1997 · N42EH · Amd FALCON10SDR P5CA9701209Outer Case · damagedNR 3 ENGINE OUTER CASE AT 11 O'CLOCK POSITION DAMAGED. REPAIRED PER BOEING SRM 51-40-02, 852F.Jun 27, 1997 · N852FT · Boeing 747122SDR P5CA9701191'R' Rail · crackedNR 2 ENGINE 'R' RAIL CRACKED. REPAIRED, WELD IAW 72-53-01 AND 70-42-04.Jun 27, 1997 · N852FT · Boeing 747122SDR HEEA0010369Nozzle · excess runoutRECEIVING INSPECTION REVEALED: EXCESSIVE RUNOUT (.010) OF #2 NOZZLE 29-34 SEAL BORE. INSTALLED A NEW #2 NOZZLE.Jun 27, 1997 · N1545X · Skrsky S76ASDR HEEA0010368Ring · out of specRECEIVING INSPECTION REVEALED: MEASURED .014 OVER B.P. SPECS (.180-.181) ON RING WIDTH. INSTALLED A NEW RING.Jun 27, 1997 · N2275Q · Bell 206B3SDR AU970726Turbine · failed(AUS) LH ENGINE POWER TURBINE MODULE FAILED - INVESTIGATION FOUND THAT THE STAGE 2 FORWARD COOLING PLATE HAD SEPARATED AT THE OUTER RIM- THE COOLING PLATE WAS A PRE SB 72-392 ITEMJun 27, 1997 · Saab 340BSDR 97UAL900496Nr 5 Bearing · wornNUMBER 2 OIL BYPASS LIGHT ON STEADY. *S/D* THE OIL FILTER WAS FOUND TO BE CLOGGED WITH METAL. THE SOURCE OF THE METAL WAS FOUND TO BE THE NUMBER 5 ROLLER BEARING. THE CONDITION OF THE BEARING IS SUCH THAT A DEFINITIVE CAUSE OF THE FAILURE COULD NOT BE MADEJun 27, 1997 · N9012U · Boeing 737222SDR 97ZZZX3769Bearing · failed15.9 AIRCRAFT FLIGHT HOURS AFTER CHANGING 2-3 MODULES. ALL ENGINE CHIP PLUGS HAD METAL ON THEM. ENGINE REPAIRED AND NOTIFIED THAT FREE TURBINE BEARING HAD FAILED. PART TOTAL CYCLES, 8,080.Jun 25, 1997 · N92LG · Snias AS350B2SDR CA970707007Turbine Rotor · blade fractured(CAN) ENGINE WAS SHUTDOWN IN FLIGHT AND AIRCRAFT RETURNED TO POINT OF DEPARTURE. INSPECTION FOUND COMPRESSOR BLADE FROM THE FIRST TURBINE ROTOR HAD SEPARATED AND DAMAGED ADJACENT BLADES.Jun 23, 1997 · Boeing 234SDR HEEA0010192P.T. Support · defectiveRECEIVING INSPECTION REVEALED: COATING FLAKING ON P.T. SUPPORT BEARING BORE.Jun 20, 1997 · N406EH · Bell 206L1SDR CA970620002Spacer · bulged(CAN) AFTER TAKEOFF THE CREW REPORTED HIGH VIBRATIONON #1 ENGINE. THE AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION RUNUP FOUND VIBRATION AT 1.3 ACCOMPANIED BY AN ENGINE WHINE. THE ENGINE WAS REPLACED. INVESTIGATION FOUND A BULGE IN THE SPACER BETWEEN THE Jun 18, 1997SDR HEEA0010156P.T. Support · mis machinedRECEIVING INSPECTION REVEALED: I.D. MACHINED UNDERSIZED ON P.T. SUPPORT #7 BEARING BORE.Jun 17, 1997 · N3520T · Bolkms BO105SSDR CA970918011Blade · fractured(CAN) THE NR2 ENGINE HAD AN UNCOMMANDED SHUTDOWN DURING TAKEOFF. INVESTIGAITON REVEALED A COMPRESSOR TURBINE BLADE ROOT FRACTURE. IT WAS REPORTED THE CT BLADES WERE NOT MANUFACTURED BY PRATT & WHITNEY CANADA.Jun 17, 1997SDR CA970625003Turbine Section · damaged(CAN) ON TAKEOFF ROLL THE #2 ENGINE LOST POWER AND SHUT ITSELF DOWN. THE TAKEOFF WAS ABORTED. INSPECTION FOUND THE TURBINE SECTION SEVERELY DAMAGED, CAUSE AS YET UNKNOWN.Jun 17, 1997 · Beech 99SDR HEEA0010126Nozzle · crackedENGINE REMOVED FOR COMPRESSOR OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES. INSTALLED A NEW #1 NOZZLE.Jun 16, 1997 · N3533T · Bolkms BO105SSDR HEEA0010113N1 Coupling · defectiveN1 COUPLING DEFECTIVEJun 13, 1997 · N4302G · Bolkms BO105SSDR HEEA0010111N1 Coupling · step wearENGINE REMOVED DUE TO LIGHTNING STRIKE. UPON INSPECTION OF TURBINE PARTS NOTED: STEP WEAR BEYOND SERVICEABLE LIMITS ON N1 COUPLING SPLINES. INSTALLED A NEW N1 COUPLING.Jun 13, 1997 · N2276B · Bell 206B3SDR ORJA97093Lpt Shaft · twistedNR 2 ENG WAS SHUT DOWN IN FLT DUE TO DECREASING OIL QTY AND PRESSURE. LANDED AT LAS W/O INCIDENT. PRIOR TO ENG SHUT DOWN, OIL QTY WAS '0' AND OIL PRESSURE WAS 38 PSI. NR 2 ENG WAS IDLE FOR 3 MINS WITH ALL OTHER PARAMETERS NORMAL. NR 2 ENG WINDMILLED FOR 10Jun 12, 1997 · N882RA · Doug DC983SDR CA970626016Seal · leaking oil(CAN) PILOT REPORTED OIL PRESSURE FLUCTUATION ON #1 ENGINE, OF 2-4 PSI PRIOR TO LANDING. THE FLUCTUATIONS INCREASED AND THE OIL PRESSURE DROPPED TO 40-50 PSI. POWER WAS REDUCED AND A NORMAL LANDING WAS CARRIED OUT. PILOT REPORTED ON FLAIR OUT THE LOW OIL, PRESJun 12, 1997 · Dhav DHC6300SDR 97ZZZX4346Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. FAILED Q-ROTOR 7.28 GMIN2. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 8,268.7.Jun 12, 1997 · N117CW · Bolkms BK117A4SDR CA970702026Impeller · worn(CAN) #2 ENGINE REMOVED DUE TO NO TGT MARGIN. ENGINE HAS RUN WITH NARROW MARGIN SINCE LAST INSTALLATION 775 HOURS PRIOR. SHROUD HAD BURNS, CRACKS AND IRREGULAR HOLE APPROXIMATELY 5" LONG TRAVELING CIRCUMFERENTIALLY AT MID-SPAN DUE TO CONTA CT WITH IMPELLER. Jun 9, 1997SDR 97ZZZX3502Engine · failedPPG/AKL - FLT EZ6987 - EN ROUTE, DIVERTED TO NAN DUE NR 3 ENGINE FAILURE DURING CLIMB. NR 3 ENGINE INSPECTIONS CARRIED OUT AND SEVERAL LP TURBINE BLADES FOUND SEVERELY DAMAGED. AOG EVERGREEN MECHANICS AND ATS ENGINEERS CARRIED OUT ENGINE CHANGE AND ENGINE POJun 7, 1997 · N478EV · Boeing 747SR46SDR 97ZZZX4431Wheel Blades · brokenTURBINE ASSEMBLY WAS RECEIVED WITH ENGINE ASSEMBLY DUE TO MAKING METAL. UPON INSPECTION OF G.P. SECTION, FOUND SULFIDATION ON 1ST STAGE WHEEL. 1ST STAGE WHEEL: PN 23053299, SN X-138702, TT 1,348.1 HOURS, TC 1,697. SCRAPPED DUE TO MISSING BROKEN AND CRACKEDJun 5, 1997 · N768AL · Skrsky S76ASDR CA970624018Bearing · failed(CAN) DURING CRUISE, SUDDEN HIGH VIBRATION ON AIRFRAME BUT NOT ENGINE. EGT TEMPERATURE ROSE SLOWLY ON #2 ENGINE FOLLOWED BY VIBRATION. NOTICED LOW OIL QUANTITY. ENGINE SHUT DOWN. FOUND #2 ENGINE TAIL PIPE COVERED WITH OIL FROM #4 BEARING AND UNABLE TO TURN FANJun 4, 1997SDR HEEA0010020Combustion Liner · mis mfgRECEIVING INSPECTION REVEALED LOWER SECTION NINETY DEGREES OFF FROM COMBUSTION LINER TOP SECTION. INSTALLED A STANDARD AERO OVERHAULED COMBUSTION LINER.Jun 3, 1997 · N911MJ · Skrsky S76ASDR 97UAL900413Turbine · overheatedAT CRUISE SETTING OR LOWER THE NR 2 ENGINE OIL TEMPERATURE REACHES THE YELLOW BAND AND EXCEEDED RED LINE DURING DESCENT. ENGINE WAS SHUT DOWN. WIND MILLING OIL PRESSURE WAS APPROXIMATELY 8 PSI FOR 8 MINUTES. *S/D* DURING SHOP PROCESSING THE HPT WAS DISASSEMay 31, 1997 · N7258U · Boeing 727222SDR HEEA0010002Nozzle · defectiveTURBINE DISASSEMBLED DUE TO N1 DRAG ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: LIFTING ON #2 NOZZLE 2ND STAGE TIP PATH. INSTALLED AN OVERHAULED #2 NOZZLE.May 30, 1997 · N979BH · Bell 206L3SDR HEEA0010001Nozzle · crackedENGINE REMOVED DUE TO COMPRESSOR OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #2 NOZZLE DIAPHRAGM AND LIFTING #1 TIP PATH.May 30, 1997 · N3533T · Bolkms BO105SSDR HAIHEEA9923Wheel · sulfidationTURBINE REMOVED DUE TO #4 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: MINOR SULFIDATION ON ALL BLADES ON #1 WHEEL. SCRAPPED PART.May 27, 1997 · N3538T · Bolkms BO105SSDR CA970624029Turbine Blade · broken(CAN) INFLIGHT ENGINE FAILURE, EMERGENCY LANDING ON SMALL LAKE. POST FLIGHT INSPECTION FOUND COMPRESSOR TURBINE WHEEL BLADE FRACTURED, DAMAGING ADJACENT BLADES. THE FAILED BLADE WAS VERIFIED AND IT SHOWED TO HAVE AN OIL CRACK OF ABOUT 3/16", PROGRESSING FROM TMay 27, 1997 · Dhav DHC3SDR CA970610011Ct Blades · fractured(CAN) DURING DESCENT THERE WAS A LOUD BANG. THE PILOT SECURED THE ENGINE. POST FLIGHT INSPECTION AT THE "C" FLANGE REVEALED SEVERAL CT BLADES FRACTURED. THE ENGINE IS BEING RETURNED TO THE MANUFACTURER.May 27, 1997SDR CA970528030Bolt · loose(CAN) BORESCOPE INSPECTION FOUND A BOLT LODGED IN THE CT VANE. THE BOLT WAS IN THE GAS PATH AND WAS SLOWLY ERODING, IT WOULD HAVE HIT THE CT DISK AND THE ENGINE WOULD HAVE DESTRUCTED. THE CAUSE OF THIS FAILURE IS THE SERRATIONS ON THE LOCKWIRE PLIERS JAWS, WHIMay 27, 1997 · Beech A100SDR P5CA9700538R/S Rail · crackedNR 1 ENG R AND S RAIL AT 6:00 POSITION HAS RADIAL LIGHTENING HOLE CRACKS. WELDED AND STRESS RELIEVED PER MM 72-53-01.May 24, 1997 · N857FT · Boeing 747132SDR MYWA970008Turbine · failedON DESCENT WITH POWER APPROX 50 PERCENT, A MODERATE VIBRATION WAS FELT. WITH THRUST LEVER AT IDLE NO VIBRATION NOTE, HOWEVER, ON ACCELERATION VIBRATION INCREASED WITH LEVER MOVEMENT. REMOVED AND REPLACED NR 3 ENGINE S/N 700279. ON INSPECTION OF ENGINE FOUNDMay 21, 1997 · N889MA · Boeing 727225SDR 97ZZZX3930Rotor Assy · blade shiftENGINE H275G5-001 FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT Q-ROTOR 9.93 GMIN2. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 5,956.8.May 21, 1997 · N911BY · Bolkms BK117A4SDR 97ZZZX2682Engine · failedRIGHT ENGINE COMPLETELY FAILED AFTER TAKEOFF AT APPROXIMATELY 200 FEET AGL. AFTER A SUCCESSFUL LANDING, ENGINE WAS EXAMINED AND FOUND THE FAN SEIZED; THE TURBINE BADLY DAMAGED. NO EVIDENCE OF FOD WAS FOUND. AWAITING EVALUATION FROM THE MANUFACTURER TO DETERMay 20, 1997 · N790M · Amd FALCON2000SDR SRAA970512Turbine Support · crackedDURING POST FLIGHT INSPECTION AT MHZ, FOUND NR 4 ENGINE REAR TURBINE SUPPORT CRACKED. ITEM IS CURRENTLY UNDER INVESTIGATION.May 17, 1997 · N907SJ · Lkheed 382BSDR AU970493Bearing · failed(AUS) ENGINE OIL PRESSURE LOSS - SUSPECT NO4/5 BEARING FAILUREMay 14, 1997 · Bac 146100ASDR 97ZZZM721Turbine Blade · failedDURING TAKEOFF FROM MIAMI, THE NR 3 ENGINE COMPRESSOR STALLED, THE ENGINE FAIL LIGHT ILLUMINATED. EPR WS 2.13, EGT WAS 595 DEGREES. THE CREW REDUCED POWER ON THE NR 3 ENGINE AND RETURNED TO MIAMI FOR AN UNEVENTFUL LANDING. AIRCRAFT WAS TWO ENGINE FERRIED FRMay 12, 1997 · N495AJ · Boeing 727233SDR HNAA9792651Case · crackedTHE SUBSEQUENT INVESTIGATION AT PWA HAS REVEALED THAT THE CRACKING OF THE TURBINE SUPPORT CASE OUTER SKIRT WAS DUE TO MULTI-ORIGIN LOW CYCLE FATIGUE ALONG THE WELD HEAT AFFECTED ZONE. THE MODIFIED MICRO-STRUCTURE OBSERVED IN THE WELD HEAT AFFECTED ZONE CLOSE May 8, 1997 · N926HA · Dhav DHC8102
Back to JASC 7250