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 COMA9560587Borescope Plug · brokenLEFT ENGINE N2 VIBRATION WARNING ON EICAS. REMOVED AND REPLACED THE LT ENGINE DUE TO FOD CAUSED BY A DEFECTIVE BORESCOPE PLUG, WHICH SEPERATED AND ENTERED THE ENGINE.Oct 27, 1995 · N946CA · Cndair CL6002B19SDR CHI1512Engine · damagedINFLIGHT ENGINE SHUT-DOWN DURING LOGGING OPERATION. NO VISIBLE DAMAGE TO INLET OF ENG OR FIRST STAGES OF COMPRESSOR. COMPR WOULD ROTATE, BUT WITH DIFFICULTY, & RUBBING NOISES. VISIBLE DMG TO EGV & NR 4 TURBINE WHEEL. PT WOULD NOT TURN. NO VISIBLE DMG TO COct 26, 1995 · N234CH · Boeing 234SDR CA951108013Nozzle · cracked(CAN)ENGINE WAS SENT IN FOR COMPLAINT OF LOW POWER. THE LOG BOOK INDICATES 3098 HOURS SINCE NEW. ENGINE WAS TESTED AND WAS FOUND TO HAVE A RUB AND VIBRATION. UNABLE TO COMPLETE TEST TO CONFIRM LOW POWER. ON DISASSEMBLY THE SECOND STAGE NOZZLE WAS FOUND TO HAVEOct 21, 1995SDR 96ZZZX5Seal · failedWHEN DTS RECEIVED THE POWER SECTION FROM MOUNTAIN WEST, IT WOULD NOT ROTATE FREELY. AT THE TIME OF DISASSEMBLY, SEVERAL PIECES OF NON-FUROUS METAL FELL OUT OF THE EXHAUST DUCT. IT WAS NOTED AFTER THE METAL FELL OUT, THE POWER SECTION ROTATED FREELY.Oct 20, 1995SDR 96ZZZX1572Rotor Assy · cracksDUE SB LT101-72-10-0150. REQUIRES DISASSEMBLY AND INSPECTION OF THE ROTOR BROACH SLOTS FOR POSSIBLE CRACKS IN THE DISC/TENON AREA. REPLACED WTIH NEW UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 2,641.6.Oct 18, 1995 · N10UM · Bolkms BK117B1SDR 95ZZZX6314Bearing · failedNR 6 BEARING IN THE POWER SECTION FAILED. THE INVESTIGATION IS LOOKING AT ELECTRICAL DISCHARGE AS THE SUSPECTED CAUSE OF THE M.I.O. NR 6 BEARING HAS BEEN SENT TO PW & C FOR INVESTIGATION.Oct 17, 1995 · N17YV · Beech 1900DSDR 95ZZZX6353Cap · looseON TAKEOFF, NR 3 ENGINE FIRE LIGHT ILLUMINATED. ENGINE WAS SHUT DOWN. AIRCRAFT PERFORMED AIR TURN-BACK. INSPECTION REVEALED 6 O'CLOCK BORESCOPE BLANKING PLUG CAP LOOSE. INSTALLED NEW HELICOIL FOR BLANKING CAP RETAINING BOLTS AND REPLACED CROSS-THREADED BLAOct 16, 1995 · N194AT · Lkheed 1011385115SDR 95UAL900201Turbine Blade · failedDURING CLIMBOUT, LEFT ENGINE HAD A COMPRESSOR STALL WITH RISING EGT, MAXIMUM 657C. POWER WAS REDUCED TO IDLE AND EGT STABLIZED AT 550C, RETURNED TO DEN. INSPECTED ON GROUND, FOUND METAL IN THE TAILPIPE. ENGINE DISASSEMBLY FOUND A FAILED T-1 HIGH PRESSURE TUOct 16, 1995 · N576UA · Boeing 757222SDR HEEA955890Engine · faultyHIGH ITT AT POWER CHECK.Oct 13, 1995 · N2261D · Bell 412SDR HEEA955884Engine · faultyHIGH N1, 1% TO 2% HIGH ON POWER CHECK.Oct 13, 1995 · N22347 · Bell 412SDR 95FDEA01540Turbine · failedABORT ON RUNWAY FOR ENGINE FAILURE ABOUT 80K, #2 ENG MAXIMUM POWER T/O. FOUND NR 2 ENG TURBINE FAILURE. REMOVED NR 2 ENG AS PER WORKCARD 70T0002, INSTALLED NR 2 ENG PER WORKCARD 70T0002. COMPLIED WITH HOOKUPS OPERATIONAL AND LEAK CHECKS PER WORKCARD 70T0002Oct 13, 1995 · N216FE · Boeing 7272S2FSDR RAAAE495026Bearing Support · separatedNR 2 ENGINE 'E' HANDLED WHILE CLIMBING OUT OF SDP DUE TO LOW OIL QUANTITY AND FLUCTUATING ENGINE AND RGB OIL PRESSURE. REPLACED ENGINE ASSY DUE REAR TURBINE BEARING SUPPORT OUTER CONE 95 PERCENT SEPARATED AT WELD .5 INCH AFT OF HUB ASSY. ALSO, HUB STRUTS CRACKOct 10, 1995 · N9744C · Lkheed 188ASDR CA960612034Power Turbine · blade shifted(CAN)IN FLIGHT SHUTDOWN DUE TO INTERNAL FAILURE. THE PRIMARY FAILURE WAS FOUND TO BE A BLADE SHIFT IN THE 1ST STAGE POWER TURBINE DISC AND BLADE ASSEMBLY. AN ECHELON OF FIVE BLADES MOVED FORWARD IN THE ROOT FLEXING UNTIL THE LEAD BLADES CONTACTED THE 1ST STAOct 10, 1995 · Aerosp ATR42*SDR 95ZZZX6593Bearing · crackedUPON DISASSEMBLY OF POWER SECTION FOR REPAIR, NR 2 INNER BEARING WAS FOUND TO HAVE 11 OF 20 CAGE SEPARATORS CRACKED ON FORWARD SIDE OF AFT 'WINGS'. OHI WO NR 96-894. INSTALLED SERVICEABLE BEARING.Oct 9, 1995 · N6992 · Bell 222USDR SRAA109506Bearing · failedDURING FLIGHT AD73, NR 3 ENGINE LOST OIL PRESSURE, SHUT DOWN ENGINE AND LANDED AT CHS SAFELY. FOUND NR 3 ENGINE HAD TURBINE BEARING FAILURE, REPLACED NR 3 ENGINE AND PERFORMED ENGINE RUN UP, OPS CHECKED GOOD PER J/C 6101, 6104, 7103 AND 7001, 7002. (M)Oct 7, 1995 · N909SJ · Lkheed 382GSDR 95UAL900178T2 Blade · fracturedNR 3 ENGINE FAILURE LIGHT ON DURING TAKEOFF ROLL. SEVERE VIBRATION AT IDLE N1 19 PERCENT, N2 50 PERCENT. REPLACED ENGINE. THE T-2 BLADE FAILURE WAS DUE TO IMPACT DAMAGE, LEADING TO HIGH CYCLE FATIGUE CRACK AND RESULTANT FAILURE. SEVERE DOWNSTREAM DAMAGE INOct 6, 1995 · N7286U · Boeing 727222SDR 96ZZZX1616Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Oct 5, 1995 · N127HH · Bolkms BK117A3SDR HEEA955824Spline Adapter · mis mfgRECEIVING INSPECTION OF NEW, NEVER INSTALLED SPLINE ADAPTER INDICATED I.D. MANUFACTURED .0005" OVER MAX B.P. SPECS OF .6565" ADAPTER MEASURES .657. INSTALLED NEW SPLINE ADAPTER.Oct 4, 1995 · N5426U · Skrsky S76ASDR 96ZZZX2750Seal · crackedDURING REPAIR, FOUND PART CRACKED AT SEAL FLANGE. CRACK RESULTED IN .025 INCH DEFLECTION OF SEALING FLANGE AND CORRESPONDING LOSS OF TURBINE SECTION COOLING AIR AROUND ENTIRE DIAMETER OF SEAL CAUSING SECONDARY DAMAGE TO TURBINE SECTION COMPONENTS. THIS IS A Oct 4, 1995SDR 96ZZZX1721Seal · flange crackedDURING REPAIR, FOUND AIR SEAL CRACKED AT SEAL FLANGE. CRACK RESULTED IN .025 INCH DEFLECTION OF SEALING FLANGE AND CORRESPONDING LOSS OF TURBINE SECTION COOLING AIR AROUND ENTIRE DIAMETER OF SEAL CAUSING SECONDARY DAMAGE TO TURBINE SECTION COMPONENTS. THIS IOct 4, 1995SDR 95ZZZX6315Sun Gear · failedPOWER SECTION FAILURE WAS CAUSED BY THE SUN GEAR FAILURE. THE SUN GEAR, CARRIER, CARRIER GEARS, PT SHAFT, AND THE RING GEAR WERE SENT TO PW & C FOR INVESTIGATION.Oct 3, 1995 · N23YV · Beech 1900DSDR 96ZZZX2751Deflector · separatedDEFLECTOR CHAFED ON RETAINER UNTIL COMPLETE SEPARATION FROM RETAINER. DEFLECTOR MOVED INTO CONTACT WITH 2ND STAGE TURBINE WHEEL RUBBING BLADE FIR TREES. IF UNDETECTED, THIS CONDITION COULD RESULT IN ROTOR BLADE FAILURE.Sep 30, 1995SDR 96ZZZX2753Seal · crackedDURING SCHEDULED HOT SECTION INSPECTION, FOUND PART CRACKED AT FLANGE APPROXIMATELY 19 PLACES. SUGGEST ALLIED SIGNAL ENGINEERING REVIEW PROBLEM. THIS IS A CRITICAL LIFE-LIMITED COMPONENT. LIFE-LIMIT - 20,000 CYCLES. THIS IS THE 16TH ROTATING AIR SEAL FOUNDSep 28, 1995SDR 96ZZZX1720Seal · flange crackedDURING SCHEDULED HOT SECTION INSPECTION, FOUND AIR SEAL CRACKED AT FLANGE APPROXIMATELY 19 PLACES. SUGGEST ALLIED SIGNAL ENGINEERING REVIEW PROBLEM. SUBMITTER STATED THIS IS A CRITICAL LIFE-LIMITED COMPONENT. LIFE LIMIT - 20,000 CYCLES. THIS IS THE 16TH ROSep 28, 1995SDR 96ZZZX1496Shield · crackedSHIELD CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WTIH NEW UNIT, CORRECTED PROBLEM.Sep 26, 1995 · N901CF · Doug MD900SDR 96ZZZX2755Deflector · separatedDEFLECTOR CHAFED ON RETAINER UNTIL COMPLETE SEPARATION FROM RETAINER. DEFLECTOR MOVED INTO CONTACT WITH 2ND STAGE TURBINE WHEEL BLADE FIR TREES RUBBING ALL BLADES. IF UNDETECTED, THIS CONDITION COULD RESULT IN 2ND STAGE TURBINE WHEEL BLADE FAILURE. TOTAL CYSep 25, 1995SDR 96ZZZX2754Deflector · separatedDEFLECTOR CHAFED ON RETAINER UNTIL IT SEPARATED COMPLETELY AND WAS LOOSE BETWEEN 2ND STATOR AND 2ND STAGE TURBINE WHEEL, MOVED INTO CONTACT WITH 2ND STAGE TURBINE WHEEL BLADE FIR TREE. RUBBED GROOVE IN BLADE FIR TREES. IF UNDETECTED, THIS CONDITION COULD RESSep 25, 1995SDR CA960612041Blade · fractured(CAN)ENGINE REMOVED FOR TURBINE BLADE DAMAGE. FOUR LOW PRESSURE TURBINE BLADES FRACTURED AT APPROXIMATELY 1/3 OF THE WAY FROM THE TIPS. SECTIONING OF ONE OF THE FRACTURED BLADES SHOWED EXTENSIVE CORROSION IN THE HOLLOW CORE WITH LAYERS OF MATERIAL FLAKING OFFSep 22, 1995 · Aerosp ATR42*SDR 95ZZZX5654Turbine Disk · fir tree failureDURING DEBLADING OF THE SECOND STAGE TURBINE DISK, 3 FIR TREES FELL OFF WHEN THE BLADES WERE REMOVED. OVERHAUL MANUAL PROCEDURES WERE FOLLOWED AND WERE NOT A CONTRIBUTING CAUSE TO THE DAMAGE. THE CRACKS ON THE FIR TREES APPEAR TO BE OLD DUE TO SOOT DEPOSITS.Sep 22, 1995SDR EIAA9543Engine · damagedKHV - NR 3 ENGINE HAS EXCESSIVE NOISE AND VIBRATION AFTER ENGINE START. ON VISUAL INSPECTION FOUND FOD DAMAGE TO LP ROTOR AND STATOR VANES. FERRIED AIRCRAFT TO HKG. REMOVED AND REPLACED NR 3 ENGINE. (M)Sep 20, 1995 · N471EV · Boeing 747273CSDR CAL950835Bearing · failedFLT NR 397 - DEN - THE NR 2 ENGINE SUDDENLY SPOOLED DOWN WITH VIBRATION, IN FLIGHT AT 31,000 FEET. THE AIRCRAFT WAS DIVERTED TO DEN WHERE IT LANDED WITHOUT INCIDENT. THE NR 2 ENGINE WAS REMOVED AND REPLACED. DISASSEMBLY OF THE ENGINE REVEALED NR 4 BEARING FSep 19, 1995 · N18611 · Boeing 737524SDR CA960612046Blades · fractured(CAN)LOW PRESSURE TURBINE BLADES FOUND DAMAGED DURING GROUND SERVICING. 4 LP BLADES POST SB 20465 FRACTURED APPROXIMATELY 0.5 INCH FROM THE TIP. MICRO ANALYSIS INDICATED MATERIAL PROPERTY DEGRADATION TYPIC AL OF OVERTEMPERATURE ALTHOUGH CONTINUOUS ENGINE MONITSep 18, 1995 · Aerosp ATR42*SDR CA960612039Bolt · broken-corroded(CAN)ENGINE REMOVED DUE TO TURBINE DAMAGE. TEARDOWN REVEALED 2 TURBINE INTERSTAGE CASE MOUNTING BOLTS FAILED DUE TO CORROSION ON THE MOUNTING FLANGE. BOLTS HAD BEEN INSTALLED NEW AT SHOP VISIT 1792 HOURS P REVIOUS. THE CAUSE OF THE CORROSION COULD NOT BE ASCERSep 18, 1995 · Aerosp ATR42*SDR 95ZZZX5844Seal · crackedDURING SCHEDULED INSPECTION, FOUND SEAL FLANGE CRACKED. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART WITH A SHIM TO INCREASE TENSION AGAINST 1ST STAGE ROTOR. INCREASE TENSION CAUSES CRACKING AT THE SEAL FLANGE. THIS IS A CRITICAL LIFE-LIMITED COMPONENT. Sep 18, 1995SDR 95ZZZX5842Seal · crackedPART REMOVED AT SCHEDULED INSPECTION, FOUND CRACKED AT FLANGE. SB TPE331-72-0840 AUTHORIZES INSTALLATION OF THIS PART TO INCREASE SEAL PLATE FLANGE PRESSURE AGAINST FIRST STAGE ROTOR. INCREASED PRESSURE CAUSES CRACKING AT SEAL FLANGE. THIS IS A CRITICAL LIFSep 18, 1995SDR PLGA91195J2Carbon Seal · failedFLT NR 4899 - YYZ-BDL - THE LEFT OIL PRESSURE WARNING LIGHT ILLUMINATED AND OIL PRESSURE DROPPED TO 40 PSI. FLIGHT CREW SHUTDOWN THE ENGINE AND DIVERTED INTO ROC. MAINTENANCE INSPECTED ENGINE AND DETERMINED NR 5 CARBON SEAL FAULTY, WHERE UPON THE POWER TURBISep 10, 1995 · N346BE · Saab SF340ASDR 95ZZZX5912Bearing · making metalINSPECTED AIRFRAME SCAVENGE OIL FILTER PER SUPERIOR TURBINE INFORMATION BULLETIN NR 95-IB001 (SB T95-SB001). FOUND 13 SILVER FLAKES IN FILTER BOWL. NO ABNORMAL INDICATIONS OR CHIP LIGHTS. REPLACED WTIH NEW SERVICEABLE BEARING. SUPERIOR TURBINE OFFERED EXCESep 10, 1995 · N105NC · Bolkms BO105CBSSDR P5CA9500741Turbine · failedJFK - ON CLIMBOUT, NR 4 ENGINE EXPERIENCED A COMPRESSOR STALL AT CONSTANT SPEED, ALTITUDE 17,000 MAX EGT 856, ENGINE SHUTDOWN. SECOND STAGE TURBINE FAILURE, FOUND METAL IN TAIL PIPE. ENGINE CHANGED.Sep 8, 1995 · N830FT · Boeing 747121SDR 96ZZZX531Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 4,870.4.Sep 8, 1995 · N911VU · Bolkms BK117B1SDR 96ZZZX1719Seal · flange crackedDURING SCHEDULED INSPECTION, FOUND SEAL CRACKED AT FLANGE. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED TENSION AGAINST THE FIRST STAGE ROTOR. THIS INCREASED TENSION RESULTS IN CRACKING AT THE SEAL FLANGE. SUBMITTER STATED THIS IS A Sep 7, 1995SDR 95ZZZX5843Seal · crackedDURING SCHEDULED INSPECTION, FOUND SEAL CRACKED AT FLANGE. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED TENSION AGAINST THE FIRST STAGE ROTOR. THIS INCREASED TENSION RESULTS IN CRACKING AT THE SEAL FLANGE. THIS IS A CRITICAL LIFE-LIMSep 7, 1995SDR 95FDEA01232failedABORTED T/O DUE TO SEVERE VIBRATION FROM NR 2 ENG, LOUD BANG FOLLOWED BY ENG FAIL LIGHT AND NR 2 LOW OIL PRESSURE BYPASS LIGHT. NR 2 FIRE HANDLE PULLED AND BOTH FIRE BOTTLES USED. ALSO, LOSS OF OIL PRESSURE, PER CONVERSATION WITH CREW AT SITE. DISCONNECTED Sep 1, 1995 · N285FE · Boeing 727233SDR 95ZZZX5859Seal · crackedDURING SCHEDULED INSPECTION, FOUND SEAL CRACKED AT FLANGE. SB TPE331-72-0840, AUTHORIZES INSTALLATION OF THIS PART TO INCREASE SEAL PLATE TENSION AGAINST 1ST STAGE ROTOR ASSEMBLY. INCREASED TENSION ON THE SEAL FLANGE RESULTS IN CRACKING AT THE FLANGE EDGE. Aug 31, 1995SDR 96ZZZX515Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 5,938.0.Aug 29, 1995 · N5188B · Bolkms BK117B1SDR 95ZZZX5372Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 1, PLUS 0.010 INCH, NR 26, PLUS 0.012 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 1136.9Aug 29, 1995 · N5188B · Bolkms BK117B1SDR 95ZZZX5314Guide Vane · burnedENGINE RECEIVED FOR CORR & HOT SECT INSP PER SB 1508. ENG OPERATED TO 1,227 HRS TIME SINCE LAST HOT SECT INSP. ENG SUFFERED LOSS OF 3 EA NOZZLE GUIDE VANES COMPLETELY BURNED IN HALF ALLOWING INNER SHROUD HALVES TO ENTER GAS PATH & DAMAGE TURB. FAILURE RESULAug 28, 1995 · N8NR · Rkwell NA26560SDR CA951116025Blades · fractured(CAN)DURING CRUISE AT 13,000 FEET THE PILOT HEARD A LOUD BANG FOLLOWED BY TORQUE DROPPING TO "0". AN UNEVENTFUL SINGLE ENGINE LANDING WAS MADE. POST FLIGHT INSPECTION REVEALED THE CAUSE OF THE INFLIGHT SHUTDOWN (IFSD) WAS DUE TO THE RELEASE OF 2 COMPRESSOR TURAug 27, 1995SDR CA960311003Gp Module · burned(CAN) ENGINE GP AND POWER TURBINE NOZZLE AND WHEEL BURNED. ALL ACCESSORIES SUCH AS NOZZLES. FCU, GOVERNOR, BLEED BAND, AIR VALVE WERE SENT FOR TEST AND HAVE TESTED SERVICEABLE. NO EROSION OR FOD FOUND ON COMPRESSOR ASSEMBLY. NO DAMAGE OR FAILURE FOUND ON ANY BAug 25, 1995 · Bell 204BSDR 96ZZZX530Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 4,927.3.Aug 25, 1995 · N71703 · Bolkms BK117B1SDR 96ZZZX529Shroud · blade tip rubTURBINE ROTOR HAS EXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 4,927.3.Aug 25, 1995 · N71703 · Bolkms BK117B1
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