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 CA960605008Blade · fractured(CAN)AT TOP OF CLIMB, #3 ENGINE VIBRATION SUDDENLY ESCALATED TO 3.0 IPS, N1 DECAY ALSO EVIDENT, ENGINE SHUTDOWN. BOROSCOPE INSPECTION REVEALED ONE RUPTURED BLADE ON #2 G.P. TURBINE DISC.May 29, 1996SDR P5CA9600364Turbine Exh · crackedNR 3 ENGINE 'R' AND 'S' RAILS CRACKED IN PREVIOUS WELDED AREAS AT 12 O'CLOCK POSITION. THE 'S' FLANGE CLEVIS PIN HAS PINHOLE CRACK, THE 'R' FLANGE 12 O'CLOCK RACETRACK SLOT RADIAL CRACK TO RAIL. INSPECTED TURBINE EXHAUST CASE AT 1,000 HR INTERVALS FOLLOWING May 27, 1996 · N855FT · Boeing 747124SDR CA960619037Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. TWO INCH LONG CRACK WITH CRAZE CRACKS OVER 50 PERCENT OF CIRCUMFERENCE. PART TC: 3,527.May 22, 1996SDR CA960619036Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,030.May 22, 1996SDR CA960619035Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,368.May 22, 1996SDR CA960619034Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,694.May 22, 1996SDR CA960619033Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 4,214.May 22, 1996SDR HEEA967252Nozzle · crackedENGINE REMOVED DUE TO LOW POWER AND SMOKING. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON 1ST STAGE NOZZLE VANE. REPLACED DISCREPANT PART. PHI REQUESTING 100% WARRANTY REPAIR. PART OVERHAULED ON DALLAS AIRMOTIMay 21, 1996 · N2268X · Bell 206BSDR 96ZZZM1176Shroud Flange · wornSAN - FLT 308 - ON TAKEOFF, SHUT DOWN NR 1 ENGINE, S/N 1217, DUE TO LOSS OF EPR AND INCREASE IN EGT. FOUND METAL PARTICLES IN TAILPIPE. REPLACED ENGINE, ENGINE OPERATION THEN CHECKED NORMAL. INVESTIGATION REVEALED SECOND STAGE LOW PRESSURE TURBINE VANES WOREMay 19, 1996 · N956U · Doug DC982SDR ERAA96242Wheel · blade stretchWHEEL HAS 252.0 HRS ON IT AND HAS BLADE TIP STRETCH TO 6.197".May 17, 1996 · N135EH · Bolkms BO105SSDR CA960524001Blade · fractured(CAN)ON TAKEOFF JUST AFTER POWER SET, A BANG HEARD & #3 FAN SPEED DROPPED TO "0" RPM. TAKEOFF REJECTED & #3 ENGINE SHUTDOWN. ENGINE TEARDOWN REVEALED SEVERE DAMAGE STARTING AT THE #1 TURBINE DISC REARWARD.NO DAMAGE NOTED AHEAD OF THE DISC OTHER THAN THE TRAILIMay 17, 1996SDR SRAA59604Turbine Blade · damagedDURING CRUISE TO ARI FLT NR 1204, NR 2 ENGINE HAD LOW TORQUE AND HIGH FUEL FLOW, ACCOMPLISHED ENGINE SHUT DOWN AS PRECAUTIONARY PRIOR TO LANDING, AIRCRAFT LANDED WITHOUT INCIDENT. FOUND NR 2 ENGINE HAD TURBINE BLADES DAMAGED. REPLACED NR 2 ENGINE AND PERFORMMay 16, 1996 · N905SJ · Lkheed 382GSDR 96ZZZX5363Inner Shaft · pittedTHE DEFECT DESCRIBED BELOW WAS DISCOVERED DURING INSPECTION OF THE PART ON RECEIPT FROM A 3RD PARTY VENDOR. THE ALLISON GAS TURBINE 250-C20 SERIES OVERHAUL MANUAL, TABLE VI-19, PAGE 6-114, PROVIDES INSPECTION CRITERIA FOR POWER TURBINE INNER SHAFTS. ITEM 27AMay 16, 1996SDR 96ZZZX5362Coupling · damaged splinesTHE DEFECT WAS DISCOVERED DURING INSPECTION OF THE PART ON RECEIPT FROM A 3RD PARTY VENDOR. THE ALLISON GAS TURBINE 250-C20 SERIES OVERHAUL MANUAL PROVIDES IN TABLE VI-19 INSPECTION CRITERIA FOR POWER TURBINE COUPLINGS. ITEM 58 OF THIS TABLE, ON PAGE 6-119 AMay 16, 1996SDR HEEA967234Nozzle Diaphragm · crackedTURBINE REMOVED DUE TO CYCLED OUT #1 AND #2 WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND OVERHAUL LIMITS ON 2ND STAGE NOZZLE DIAPHRAGM. REPLACE DISCREPANT PART.May 15, 1996 · N5029H · Bolkms BO105SSDR 96ZZZX4017Spacer · displacedDURING DISASSEMBLY OF NGV3, FOUND THE RING SPACER AIR SEAL, PN 596968, HAD DEPARTED FROM HOUSING. THIS RING WAS FOUND BETWEEN DISK AND NGV3. DAMAGE (IMPACTS, CRACS, ETC.) ARE VISIBLE ON STAGE 2 BLADES AND STAGE 3 NGVS.May 15, 1996SDR HEEA967229Nozzle · crackedTURBINE REMOVED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON #2 NOZZLE BRAZEMENT BETWEEN DIAPHRAGM AND VANE INNER BAND. REPLACED DISCREPANT PART.May 14, 1996 · Bell 206B3SDR HEEA967228Nozzle Vanes · crackedENGINE REMOVED DUE TO STRIPPED THREADS IN OIL OUT PORT. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE VANES. REPLACED DISCREPAN T PART.May 14, 1996 · N2268V · Bell 206B3SDR HEEA967227Nozzle · crackedENGINE REMOVED DUE TO EXCESSIVE SMOKE ON SHUTDOWN. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED AND BOWED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES. REPLACED DISCREPANT PART.May 14, 1996 · N911FL · Bolkms BO105SSDR 96ZZZX3051Blade · brokenSECOND STAGE TURBINE ROTOR BLADE FAILURE IN-FLIGHT, WITHOUT INCIDENT. ENGINE TT, 11,164.7 HRS, CYCLES, 8,081, TSO, 330.9 HRS, TTHSI, 330.9 HRS, TOTAL PART TIME 330.9 HRS. UNIT WAS OVERHAULED 4-12-95.May 13, 1996 · N311NT · Rkwell NA26540SDR 96ZZZX2899Nozzle Shield · crackedDURING REPAIR OF THE TURBINE, NOTED THE DEFLECTOR ON THE FIRST STAGE NOZZLE SHIELD WAS BURNED. CLOSER EXAMINATION REVEALED 2 CRACKS IN THE DOME DETAIL. THE DOME WAS CHECKED FOR PROPER MATERIAL PER DEB A-72-3208 AND WAS FOUND TO CONFORM. SUSPECT THE CAUSE COUMay 13, 1996SDR 9610679304Turbine · failedNR 2 ENGINE EXPERIENCED A CONTAINED TURBINE FAILURE DURING CLIMB-OUT. FLIGHT RETURNED TO ATL AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 2 ENGINE ASSEMBLY. AIRCRAFT RETURNED TO SERVICE.May 13, 1996 · N931MC · Doug DC982SDR TWRA9626Turbine · failedAT 13,000 FEET AFTER TAKEOFF LOUD BOOM WAS HEARD AND CONFIRMED ENGINE ON NR 3 ENGINE. AFTER RETURN TO JED INITIAL INSPECTION FOUND METAL IN TAILPIPE. BORESCOPE INSPECTION FOUND SECOND STAGE TURBINE FAILURE. ENGINE TO BE REPLACED. (M)May 10, 1996 · N604FF · Boeing 747121SDR CA960604020Turbine · seized(CAN)INSTALLED TURBINE ON AIRCRAFT AND COMPLETED A GROUND RUN AND TEST FLIGHT. TURBINE CHECKED OK. A SECOND START WAS ATTEMPTED BUT THERE WAS NO NR UPON REACHING 30 PERCENT N1. ANOTHER START WAS ATTEMPTED,BUT AGAIN THE NR WOULD NOT ROTATE. TURBINE RETURNED TO May 10, 1996 · Bell 206LSDR CA960521007Blades · fractured(CAN)SHORTLY AFTER TAKEOFF, A LOUD BANG WAS HEARD ACCOMPANIED BY A LOSS OF POWER. AIRCRAFT LANDED IN A PLOWED FIELD, NO DAMAGE. INSPECTION REVEALED PERFORATIONS OF THE EXHAUST STUBS AND DUCT, SEVERAL POWERTURBINE BLADES FRACTURED AT MID SPAN.May 10, 1996 · Airtrc AT502ASDR ZIAA96015Bearing Support · crackedANC - DURING TAKEOFF FROM ADQ, HAD FIRE WARNING INDICATION ON NR 3 ENGINE. E-HANDLE PULLED AT 22.37Z. CREW ELECTED TO PROCEED TO ANC. FOUND NR 3 ENGINE REAR TURBINE BEARING SUPPORT COCKED AND CRACKED 75 PERCENT OF ITS CIRCUMFERENCE, THUS DIRECTING EXHAUST GMay 9, 1996 · N289F · Lkheed 188CSDR CA960521010Blade · fractured(CAN)FOLLOWING A STALL EXERCISE DURING FLIGHT TRAINING, ON POWER APPLICATION, THERE WAS AN EXPLOSION FROM THE ENGINE. ENGINE WAS SECURED AND A LANDING MADE. AFTER ENGINE SPLIT AT THE "C" FLANGE, A FRACTURE D POWER TURBINE BLADE WAS EVIDENT.May 9, 1996SDR CA960521008Gas Generator · seized(CAN)IN CRUISE, #2 ENGINE STOPPED SUDDENLY WITH NO WARNING OF UNUSUAL ENGINE PARAMETERS. RETURNED TO ALBUQUERQUE WITHOUT INCIDENT. INSPECTION REVEALED THE GAS GENERATOR SECTION SEIZED AND METAL CONTAMINATI ON OF THE OIL FILTER. THE POWER TURBINE ROTATES FREELYMay 9, 1996 · Beech 1900CSDR 96ZZZX4268Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 18 +0.016 INCH. LEAD-THE-FLEET. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 4,274.1.May 8, 1996 · N528SF · Bolkms BK117A3SDR 96ZZZX4267Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.May 8, 1996 · N527SF · Bolkms BK117A3SDR 96ZZZX3632Shaft · crackedTHE LPT SHAFT HAS 2 EACH CRACKS, ONE IS 5 AND ONE IS 7 INCHES LONG, ONE INCH APART STARTING APPROXIMATELY .50 INCH FROM THE AFT END OF THE SPLINES. INVESTIGATION IS IN PROGRESS BY CFMI.May 7, 1996SDR 96ZZZM973Turbine · damagedMCI - DURING CRUISE, SHUT DOWN NR 1 ENGINE, S/N 3208, DUE TO RAPID DETERIORATION OF ENGINE PARAMETERS. FOUND TURBINE DAMAGE. CHANGED ENGINE. ENGINE OPERATION THEN CHECKED NORMAL. (M)May 4, 1996 · N913TW · Doug DC982SDR HEEA967096Nozzle · crackedENGINE REMOVED DUE TO CYCLED OUT 1ST AND 2ND STAGE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKS BEYOND OVERHAUL LIMITS ON OUTER BAND (2 EA) AND 50% OF VANES AT TRAILING EDGE. REPLACED PART. NOTE: FUEL NOZZLE SPRAY PATTERN CHECKED GOMay 2, 1996 · N31219 · Skrsky S76ASDR HEEA967091Seal · bore oversizeUPON INSPECTION OF PART FOUND THE #5 STATIONARY LAB SEAL BORE I.D. .006 OVERSIZE.May 2, 1996SDR CA960513009Turbine Blade · blade(CAN) AFTER TAKEOFF, ENGINE VIBRATION ON NR 4 ENGINE AT 3.0 IPS. CREW REDUCED POWER TO FLIGHT IDLE AND VIBRATION DECREASED TO 1.0 IPS. ONE BLADE MISSING ON 4TH TURBINE DISC AND 4TH NOZZLE DAMAGE.May 2, 1996SDR CA960513008Blades · ruptured(CAN)IN CRUISE, #4 ENGINE TGT AND VIBRATION ABOVE LIMITS ACCOMPANIED BY FLAMES OUT OF TAILPIPE ENGINE SHUTDOWN. BORESCOPE INSPECTION REVEALED FIRST STAGE GAS PRODUCER TURBINE BLADES RUPTUREDMay 1, 1996SDR 96ZZZX2823Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 1, 1996 · N71703 · Bolkms BK117B1SDR 96ZZZX2816Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.May 1, 1996 · N417BK · Bolkms BK117B1SDR 96ZZZX2814Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.May 1, 1996 · N417BK · Bolkms BK117B1SDR 96ZZZX2813Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 1, 1996 · N417BK · Bolkms BK117B1SDR 96ZZZX2809Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 1, 1996 · N128HH · Bolkms BK117A1SDR HEEA967081N1 Coupling · step wearENGINE REMOVED DUE TO TURBINE CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: STEP WEAR BEYOND OVERHAUL LIMITS IN N1 COUPLING FWD SPLINES. REPLACED WITH SERVICEABLE PART.Apr 29, 1996 · N31219 · Skrsky S76ASDR HEEA967078Shaft · defectiveUPON INSPECTION OF NEW PART NOTED THE FOLLOWING: ALSEAL COATING FLAKING ON OUTER PT SHAFT O.D.Apr 25, 1996SDR 96ZZZX2482Wheel · shroud crackedTURBINE WAS DISASSEMBLED AS PART OF ENGINE REPAIR FOR COMPRESSOR STALLS. FOUND THE SHROUD ON THE THIRD STAGE WHEEL CRACKED ALL THE WAY THROUGH.Apr 25, 1996SDR CAL960515T1 Blade · brokenTHE NR 1 ENGINE OIL PRESSURE READ 60 PSI, BUT FLUCTUATED PLUS OR MINUS 5 PSI AND WITHIN 30 SECONDS THE OIL TEMPERATURE BEGAN RISING RAPIDLY. THE ENGINE WAS SHUT DOWN AND RETURNED TO GSO. THE NR 1 ENGINE WAS REMOVED AND REPLACED. SHOP TEAR-DOWN FINDINGS REVEApr 21, 1996 · N14206 · Boeing 737130SDR HEEA967042Shaft · defectiveUPON INSPECTION OF NEW OUTER PT SHAFT NOTED THE FOLLOWING: ALSEAL COATING FLAKING ON SHAFT O.D. NEW PART INSTALLED.Apr 18, 1996 · N5793Z · Aerosp AS355F1SDR ERAA96226Nozzle · defectiveNOZZLE SENT FOR O/H AND RET'D 4-3-96 WITH T.I.R. ON SEAL AND BLADE PATH BEYOND ALLOWABLE LIMITS.Apr 17, 1996 · N292EH · Bolkms BO105SSDR ERAA96225Sump Cover · leakP.T. SUMP COVER WAS SENT FOR OVERHAUL . PART HAS 28.7 HRS T.S.O. AND IS LEAKING AT BOLT HOLE AS MARKED .Apr 16, 1996 · N151EH · Bolkms BO105SSDR 96ZZZX4243Rotor Assy · blade shiftFAILED SB L5101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 9 -0.012 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES: 3,425.2.Apr 14, 1996 · N127HH · Bolkms BK117A3SDR 96ZZZX4218Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Apr 14, 1996 · N127HH · Bolkms BK117A3
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