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 HNAA9792452Stator · failedENGINE S/N 120314 FAILED ON TAKEOFF. PT1 STATOR BROKE LOOSE AND FELL BACK INTO THE PT1 DISC, CUTTING THE PT BLADE UNTIL COMPLETE FAILURE OF BLADES. REFERENCE HNAA 9792427.May 8, 1997 · N924HA · Dhav DHC8102SDR HAIHEEA9831Wheel · blade defectsTURBINE REMOVED DUE TO CYCLED OUT #1 AND #2 WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED: MINOR SULFIDATION ON ALL BLADES ON #1 WHEEL. SCRAPPED PART.May 8, 1997 · N911EB · Bolkms BO105SSDR HAIHEEA9830Shield · crackedENGINE REMOVED DUE TO TURBINE #1 AND #2 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE SHIELD ABOUT 75 PERCENT AROUND DOME AND EXTENDING INTO THE CENTER OF DOME UNDER DEFLECTOR. CEB-A-1341 WASCOMPLIED WIMay 8, 1997 · N911EB · Bolkms BO105SSDR CA970716005Key Washer · broken(CAN) DURING CLIMB OUT THE ENGINE CHIP LIGHT ILLUMINATED. PILOT INITIATED RETURN TO BASE, ON APPROACH A LOUD BANG WAS HEARD AND THE #1 POWER SECTION DECELERATED. AN EMERGENCY LANDING WAS CARRIED OUT. POST FLIGHT INVESTIGATION FOUND THE KEY BROKE OFF THE KEY WAMay 8, 1997 · Bell 212SDR CA970528016Plate · warped(CAN) BOTH THE NR 8 BEARING OIL NOZZLE AND EXTERNAL LEAKED ON INSTALLATION OF TURBINE. BOTH CRUSH WASHERS CHANGED. NR 8 BEARING STOPPED LEAKING, BUT EXTERNAL SUMP BECAME PROGRESSIVELY WORSE. WARPED SUMP MOUNTING PLATE CAUSED PROBLEM.May 7, 1997 · Hughes 369DSDR CA970513003Bearings · damaged(CAN) ON CLIMB OUT TORQUE INCREASED WITH ALTITUDE, ACCOMPANIED BY ENGINE VIBRATION AND ENGINE NOISE. ENGINE WAS SHUTDOWN AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE. POST FLIGHT INSPECTION REVEALED METAL IN THE CHIP DETECTOR AND OIL FILTER OPERATING IN BYPMay 6, 1997 · Dhav DHC8311SDR P5CA9700515S Rail · crackedNR 2 ENGINE S-RAIL CRACKED 3 PLACES. REMOVED ENGINE FOR EXHAUST CASE REPLACEMENT PER POLAR AIR CARGO WORK CARD M7100-002.May 5, 1997 · N852FT · Boeing 747122SDR RAIA970427Engine · failedSAN - FLT 4747 - RIGHT ENGINE EGT ERRATIC, HEARD LOUD BANG. TORQUE DROPPED TO 55 PERCENT EGT 640 DEGREES CELSIUS. DIVERTED TO LAX. MAINTENANCE REPLACED RIGHT ENGINE. CAUSE OF FAILURE DUE TO FRACTURED TURBINE SECTION SEAL PLATE. (M)Apr 30, 1997 · N860AE · Bag JETSTM3201SDR HAIHEEA9743Nozzle · defectiveRECEIVED PART FROM MACHINE SHOP. INSPECTION REVEALED; TIP PATH LIFTING ON #2 NOZZLE #2 TIP AS MARKED. INSTALLED A STANDARD AERO OVERHAULED #2 NOZZLE.Apr 30, 1997 · N5742H · Bell 206L1SDR HAIHEEA9624Nozzle Shield · crackedENGINE REMOVED DUE TO F.O.D. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE SHIELD DOME AS MARKED. INSTALLED A STANDARD AERO OVERHAULED #1 NOZZLE SHIELD.Apr 28, 1997 · N7170D · Bolkms BO105SSDR CA970527005Turbine Blade · failed(CAN) ON TAKEOFF ROLL THE #3 ENGINE DEVELOPED A SEVERE VIBRATION AND EGT INDICATION WAS AT THE RED LINE, THE TAKEOFF WAS ABORTED. PRELIMINARY INDICATIONS INDICATE A CATASTROPHIC FAILURE CAUSED BY A T1 DISC BLADE FAILURE APPROXIMATELY AT MID-FOIL. NOTE: E.C.M. Apr 28, 1997 · Boeing 727233SDR CA970520005Turbine Blade · failed(CAN) INSPECTION FOUND A T1 BLADE HAD FAILED.Apr 28, 1997 · Boeing 727233SDR 97ZZZX3931Rotor Assy · blade shiftENGINE FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. Q-ROTOR 13.72 GMIN2. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 2,376.2.Apr 25, 1997 · N90260 · Bolkms BK117B1SDR 97ZZZX2005Gas Generator · seal failedPILOTS REPORTED SMOKE IN COCKPIT AND CLOSED PRSOV VALVE STOPPING THE SMOKE. SEVERAL MINUTES LATER, THE PILOTS NOTICED TORQUE AND OIL PRESSURE FLUCTUATING. FEATHERED AND SHUT DOWN ENGINE AND LANDED WITHOUT INCIDENCE. ENGINE WAS LEAKING OIL FROM THE COMPRESSOApr 25, 1997 · N936MA · Stbros SD330SDR HAIHEEA9596Engine · low powerENGINE LOW POWER AND TORQUE OSCILLATIONS.Apr 24, 1997 · N3893N · Bell 412SDR HAIHEEA9591Nozzle · crackedSTAGE ONE NOZZLE BURNT AND CRACKED BEYOND LIMITS.Apr 24, 1997 · N5748M · Bell 214STSDR HAIHEEA9590Stator Assy · crackedGAS GEN STATOR CRACKED STAGE 1 SEGMENT.Apr 24, 1997 · N5748M · Bell 214STSDR HAIHEEA9536Engine · debondingCOATING COMING OFF POWER TURBINE SECTION WHERE IT MATES TO COMBINING GEARBOX, CAUSING LEAK BETWEEN ENGINE AND GEARBOX, OVERHAUL DUE. SENT TO PRATT & WHITNEY FORApr 23, 1997 · N3893N · Bell 412SDR HAIHEEA9457N1 Coupling · stepwearENGINE REMOVED DUE TO CYCLED #1 AND #2 TURBINE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED: STEP WEAR BEYOND SERVICABLE LIMITS ON N1 COUPLING FORWARD SPLINES. INSTALLED A NEW N1 COUPLING.Apr 22, 1997 · N8591X · Bell 206L3SDR HAIHEEA9426Nozzle · seal faultyRECEIVING INSPECTION REVEALED: #2 SEAL SEPARATING ON #2 NOZZLE AS MARKED.Apr 18, 1997 · N8592X · Bell 206L3SDR CA970423019Disk Lp Turbine · blades burnt(CAN) INSPECTION FOUND TWO LOW PRESSURE TURBINE BLADES BURNT WITH MATERIAL LOSS AT THE TRAILING EDGE TIP. THE ENGINE WAS REPLACED.Apr 17, 1997 · Dhav DHC8301SDR 97ZZZX1938T3 Disk · crackedDURING ROUTINE DISASSEMBLY AND ENGINE BUILD-UP, AD 82-14-02 WAS C/W ON T-3 DISK. DURING EDDY CURRENT INSPECTION, FOUND 2 TIE ROD HOLES HAD CRACKS RADIATING FROM HOLES INTO DISK. DISK WAS REMOVED FROM SERVICE AND SCRAPPED. CYCLES, 6,623.Apr 16, 1997 · N30VA · Bell 206BSDR MWEA97276Turbine · failedPILOT REPORTS, LOUD THUMP FOLLOWED BY LT ENG FAIL WITH VIBRATION, LT FIRE BOTTLE DISCHARGED AS PRECAUTION RETURNED TO MKE ON EMERG STAT. MAINT REMOVED AND REPLACED IAW DAC MM AND MWEA PROG REMOVED ENG WILL BE SENT TO SHOP.Apr 11, 1997 · N701ME · Doug MD88SDR DLM88970646Engine · failedON T/O, THE NR 2 ENGINE COMPRESSOR STALLED AT APPROX 300 FT ALTITUDE. THE N1 SPEED WENT TO ZERO AND THE ENGINE WAS SHUT DOWN. FLT RETURNED TO BTR. OPERATIONS REPORTED TURBINE PARTS WERE FOUND ON THE RUNWAY NR 2 ENGINE CHANGE IS IN PROGRESS.Apr 10, 1997 · N905DE · Doug MD88SDR CA970422001Blade · dented(CAN) DURING A GROUND RUN TO INVESTIGATE A REPORTED IN-FLIGHT VIBRATION, THE ENGINE SURGED AND WAS SHUTDOWN. INITIAL REPORT WAS A FAILED LOW PRESSURE (LP2) TURBINE BLADE, SINCE AMENDED TO A "DENTED" LP2 TURBINE BLADE. METAL SPLATTER WAS ALSO REPORTED IN THE TAApr 10, 1997 · Fokker F28MK1000SDR 97ZZZX2632Rotor · crackedSECOND STAGE TURBINE ROTOR EXHIBITS RIVET HOLE CRACKS 0.020 INCH TO 0.050 INCH DEEP. DEFECT DISCOVERED 200 HOURS AFTER HOT SECTION INSPECTION AT UNSCHEDULED ENGINE REMOVAL.Apr 7, 1997 · N264B · Swrngn SA226TSDR CALA9700489T-4 Blade · failedCREW REPORTED A LOUD BANG WITH NR 2 ENGINE HIGH EGT AND EPR 1.44 WHILE EN ROUTE FROM LGA TO IAH. THE AIRCRAFT WAS DIVERTED TO EWR WHERE IT LANDED WITHOUT INCIDENT. THE NR 2 ENGINE WILL BE REMOVED AND REPLACED. *S/D* SHOP FINDINGS REVEALED T-4 BLADE FAILUREApr 4, 1997 · N14840 · Doug DC982SDR AU970410Nozzle · damaged(AUS) NO3 ENGINE SECOND STAGE TURBINE BLADES (3OFF) HAD APPROXIMATELY ONE THIRD OF THE BLADE MISSING AND THREE MORE BLADES WITH APPROXIMATELY ONE QUARTER OF THE BLADE MISSING - INVESTIGATION FOUND THAT THE SECOND STAGE TURBINE NOZZLE REAR INNER SHROUD WAS CRACApr 4, 1997 · Bac 146200ASDR GLBA97062Power Section · rubbingRDU - LEFT POWER SECTION RUBBING. MAINTENANCE REPLACED LEFT ENGINE POWER SECTION. (M)Apr 3, 1997 · N166GL · Beech 1900CSDR 97UAL900258T1 Blade · failedRETURNED TO FIELD DUE TO NUMBER TWO ENGINE HIGH EGT. *S/D* FOUND TYPE 55 T1 BLADE FAILED IN FLIGHT. REMOVED RIGHT ENGINE AND REPLACED THE FAILED BLADE.Apr 3, 1997 · N502UA · Boeing 757222SDR 97ZZZX1964Support Assy · misoverhauledAFTER INSTALLATION OF SUPPORT ASSY, ENGINE MADE CHATTERING NOISE WHEN ROTATED. DISASSEMBLY SHOWED IMPROPER MACHINING OF SUPPORT ALLOWING SEGMENTS TO CONTACT TURBINE WHEEL BLADES. CAUSE: IMPROPER REPAIR. SUBMITTER SUGGESTS BETTER QUALITY CONTROL DURING REPAApr 1, 1997SDR P5CA9700468Flange · crackedCRACK IN 'R' FLANGE AT 9 O'CLOCK POSITION NR 3 ENG. WELDED IAW P/W 72-53-01 USING GREEK ASCOLOY TIG ROD AND DYE CHECK WELD PER SOPM 20-20-02, NO CRACK. ALSO, STRESS RELIEVED IAW 72-53-01.Mar 28, 1997 · N859FT · Boeing 747123SDR CALA9700440Turbine Liner · failedTHE NR 2 MANIFOLD LIGHT AND FIRE WARNING LIGHT ILLUMINATED WHILE EN ROUTE. THE FIRE BOTTLE WAS DISCHARGED AND THE NR 2 ENGINE WAS SHUT DOWN. THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. THE NR 2 ENGINE WAS REMOVED AND REPLACED. *S/D* Mar 27, 1997 · N15069 · Doug DC1030SDR CA970407001Pt Rotor · blades displaced(CAN) DURING INSPECTION THE POWER TURBINE ROTOR WAS FOUND TO HAVE SOME OF THE TURBINE BLADES DISPLACED AXIALLY BEYOND LIMITS. ALL BLADES BEYOND LIMITS HAD MOVED AFT. THE ENGINE WAS REMOVED FROM SERVICE AND A ZERO TIME TSO ENGINE INSTALLED.Mar 25, 1997 · Snias AS350DSDR HAIHEEA9225Nozzle · below specRECEIVING INSPECTION REVEALED: MEASURED .044 BELOW MIN. SPECS (6.200) ON #1 NOZZLE AFT ROPE PACKING INNER RIM ID.Mar 21, 1997SDR CALA9700353Lpt Shaft · fracturedA LOUD BOOM WAS HEARD AND THE AIRCRAFT SHUDDERED AFTER DEPARTURE WHILE PASSING BETWEEN 2000 AND 2500 FEET. THE NR 2 ENGINE N1 AND N2 DROPPED RAPIDLY WITH NO FUEL FLOW OR OIL PRESSURE INDICATED. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENMar 21, 1997 · N12514 · Doug DC932SDR AU970426Blade · failed(AUS) NO3 ENGINE FIRST STAGE TURBINE BLADE BROKEN AT MID SPAN. INVESTIGATION FOUND 30% OF BLADES HAD BULLSEYE EROSION ON THE CONCAVE SIDE. FOUND DURING BOROSCOPE INSPECTION.Mar 19, 1997 · Boeing 747312SDR NYBA9715Turbine Assy · defective# 8 BEARING HEAT SHIELD MISSING A LARGE PORTION. REPLACED TURBINE ASSYMar 18, 1997 · N125NH · Bell 206L4SDR HAIHEEA9219Nozzle · crackedENGINE REMOVED TO COMPLY WITH TURBINE 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: BURNT AND CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND CRACKED OUTER BAND. INSTALLED NEW #1 NOZZLE.Mar 18, 1997 · N81992 · Bolkms BO105SSDR HAIHEEA9218Nozzle · crackedENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON TURBINE DISASSEMBLY NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND OUTER BAND. INSTALLED NEW #1 NOZZLE.Mar 18, 1997 · N4302G · Bolkms BO105SSDR HAIHEEA9216Nozzle · crackedENGINE REMOVED DUE TO METAL IN OIL. TURBINE DISASSEMBLED DUE TO HIGH GEARBOX PRESSURE ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND OUTER BAND. INSTALLED A NEW #1 NOZZLE.Mar 18, 1997 · N16938 · Bell 206L1SDR HAIHEEA9215Nozzle · crackedTURBINE REMOVED DUE TO OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED; CRACKED BEYOND LIMITS ON #1 NOZZLE VANES. INSTALLED A NEW #1 NOZZLE.Mar 18, 1997 · N2272V · Bell 206B3SDR HAIHEEA9214Nozzle · defectiveENGINE REMOVED DUE TO TURBINE OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. DISASSEMBLY INSPECTION REVEALED: MATERIAL FLAKING AND MISSING ON #2 NOZZLE #2 TIP PATH. INSTALLED A DALLAS AIRMOTIVE OVERHAULED #2 NOZZLE.Mar 18, 1997SDR DLM88970499Turbine · damagedON CLIMB-OUT OF DCA AT 5,000 FEET AGL, THE NR 1 ENGINE STALLED. FLIGHT DIVERTED TO IAD. ENGINE DID NOT SHUT DOWN. MECHANIC REPORTED THE TURBINE WAS SEVERELY DAMAGED. ENGINE CHANGE IS IN WORK.Mar 18, 1997 · N904DE · Doug MD88SDR P5CA9700425Turbine · failedNR 3 ENGINE COMPRESSOR STALLED ON TAKEOFF AT NAN 140 KTS, EGT PEGGED OUT HIGH. REPLACED ENGINE PER POLAR AIR ENGINE CHANGE WORK CARDS.Mar 10, 1997 · N3203Y · Boeing 747128SDR HEEA979161Collector Strut · crackedENGINE REMOVED DUE TO FLUCTUATING OIL PRESSURE. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. DISASSEMBLY INSPECTION REVEALED: CRACKED BEYOND SERVICEABLE LIMITS ON EXHAUST COLLECTOR STRUT & EXCESSIVE RUNOUT ON CARBON SEAL BORE .006 (SPECS.0015) INSTALLMar 10, 1997 · N2245Y · Bell 206L1SDR NYBA973Wheel · crackedFIRST STAGE WHEEL IS CRACKED.Mar 9, 1997 · N121NH · Bell 206LSDR CKSA97023Turbine · damagedNR 1 ENGINE STARTED LOOSING POWER RIGHT AFTER TAKEOFF. EPR AND N1 DROPPING EGT AT 800 DEGREES. TRIED RAPID RESTART, ENGINE WOULD NOT RUN. SHUTDOWN PER EMERGENCY CHECKLIST. WINDMILL TIME 1 HOUR 16 MINUTES OIL PRESSURE 10 PSI. NOTE: DUMPED FUEL DOWN TO 630Mar 7, 1997 · N707CK · Boeing 747269BSDR 97ZZZX1118Turbine · smoking19.4 HOURS AFTER A REPAIR TO THE TURBINE PT SUPPORT, THE TURBINE STARTED SMOKING HEAVILY ON SHUT DOWN. AFTER THE ENGINE COOLED, A VISUAL INSPECTION FOUND OIL PUDDLING IN THE TURBINE EXHAUST COLLECTOR. UNIT SENT BACK FOR REPAIR.Mar 7, 1997 · N5074R · Hughes 369DSDR P5CA9700390Case · crackedNR 3 ENG 'S' RAIL CRACKED AT 60 DEG POSITION ON TURBINE EXHAUST CASE TEC. REPAIRED WELDED AND STRESS RELIEVED PER MM 72-53-01 CASE CYCLE 6A.Mar 6, 1997 · N856FT · Boeing 747132
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