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 98ZZZX2242Airseal · crackedWHILE RE-EVALUATING THE DATA FOR TI-JT8D-117 ON WELDING OF THE KNIFE EDGE AIRSEALS ON 2ND, 3RD, AND 4TH STAGE ROTATING AIRSEALS, CRACKING WAS DETECTED IN THE PEDESTAL RADIUS. THE PART WAS DAMAGED AS THE RESULT OF THE LASER WELDING PROCESS. REF: THE INVESTIGMay 21, 1998SDR 98ZZZX3707Shield · crackedSHIELD CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES: 1,477.May 20, 1998 · N901CF · Doug MD900SDR 98ZZZX3379Bearing · pittedBEARING HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 19, 1998 · N528SF · Bolkms BK117A3SDR 98ZZZX2008Lock · misinstalledREMOVED RIGHT ENGINE POWER SECTION FOR ACCESS TO PERFORM SCHEDULED HOT SECTION INSPECTION. UPON DISASSEMBLY, DISCOVERED TAB WASHERS (16 EACH) WERE NOT BENT TO THE SAFETY POSITION. THESE WASHERS SAFETY THE BOLTS THAT RETAIN THE CT VANE RING AND NR 2 BEARING CMay 19, 1998 · N96AU · Beech A100SDR 98ZZZX3385Seal · wornSEAL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 16, 1998 · N117MV · Bolkms BK117A3SDR 98ZZZX3714Bearing · corrodedBEARING HAS EXCESSIVE PITTING. REPLACING WITH NEW UNIT, CORRECTED PROBLEM.May 15, 1998 · N118LF · Bolkms BK117A4SDR HEEA0014203Support · mismanufacturedRECEIVING INSPECTION REVEALED: MISALIGNMENT OF G.P. SUPPORT NOZZLE SLOTS. TRIED SEVERAL NR2 NOZZLES UNABLE TO INSTALL INTO G.P. SUPPORT SLOTS.May 13, 1998 · N5007N · Bell 206L1SDR 98ZZZX2262Ring · failedENGINE REMOVED FROM SERVICE FOR 'LPT DAMAGE'. THE SECOND STAGE VANE INNER SUPPORT LOCATING PIN BROKE LOOSE AND CAUSED IMPACT DAMAGE TO THE T2 AND T3 BLADES, AND COMPLETE FAILURE OF ALL T4 BLADES.May 13, 1998SDR 98ZZZX3739Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 12, 1998 · N911BY · Bolkms BK117A4SDR 98ZZZX3716Nozzle Assy · malfunctionedUNABLE TO GET CORRECT FLOW WHICH RESULTED IN ENGINE LOW POWER WITH HIGH EGT. -08 WEFA NEEDS TO BE BETWEEN 3.592 AND 3.600. WEFA FOR DISCREPANT UNIT IS 3.692 WHICH IS TOO HIGH FOR FLEET. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 12, 1998 · N911BY · Bolkms BK117A4SDR 98ZZZX3372Rotor Assy · failedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES: 4,571.4.May 12, 1998 · N911BY · Bolkms BK117A4SDR REXA98095Turbine · fialedRIGHT ENGINE SHUT DOWN ON APPROACH TO MEM. CHANGED ENGINE DUE TO TURBINE FAILURE. (X)May 6, 1998 · N318PX · Bag JETSTM3101SDR AU980505Turbine · burned(AUS) ENGINE CAUGHT FIRE DUE TO IGNITION OF FUEL VAPOR. THE FIRE WAS CONCENTRATED EXTERNALLY AROUND THE TURBINE SECTION.May 5, 1998 · Skrsky S76CSDR 98ZZZX1875Case · crackedENGINE REMOVED FROM SERVICE DUE TO TURBINE FAILURE. DISASSEMBLY REVEALED HPC AND TURBINE FAILURE DUE TO C-8 SHELF CRACK FAILURE.May 5, 1998SDR HEEA0014112Wheel · sulfidationENGINE REMOVED DUE TO COMPRESSOR IMPELLER CYCLES. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: MINOR SULPHIDATION ON ALL BLADES OF NR1 WHEEL. SCRAPPED #1 WHEEL.May 4, 1998 · N81982 · Bolkms BO105SSDR 98ZZZX2880Shroud · crackedIT WAS NOTED DURING OPERATION, ENGINE EGT WAS OBSERVED TO BE ABOVE NORMAL. UPON TEARDOWN OF HOT SECTION, THE FIRST STAGE TURBINE NOZZLE OUTER SHROUD WAS FOUND SEVERELY CRACKED. (X)May 3, 1998 · N58HJ · Bell 205A1SDR DLL14980943Turbine Blabe · damagedNR 3 ENGINE HIGH VIBRATION ON CLIMB. ENGINE SHUTDOWN AND RTN TO TPA. BORESCOPED ENGINE FOUND HPT BLADE DAMAGE. REPLACED ENGINE.May 2, 1998 · N740DA · Lkheed 1011385115SDR CA980512031Blade · fractured(CAN) THE TURBOMACHINE WAS SENT FOR INSPECTION AFTER THE OPERATOR REPORTED AN LP TURBINE BLADE FAILURE AND HIGH OIL CONSUMPTION. INVESTIGATION FOUND THE LP TURBINE BLADE FAILURE WAS A RESULT IN A VOID WHICH ORIGINATED IN THE BASE BLADE MATERIAL. THE HIGH OIL May 1, 1998 · Aerosp ATR42*SDR 98ZZZX1746Bearing · failedBEARING, WHICH IS PART OF THE POWER TURBINE THRUST SYSTEM AND INSTALLED IN THE ENGINE 121.6 HOURS EARLIER BY THE INCORPORATION OF SB LT 101-72-50-0174, FAILED 2.8 HOURS AFTER BEING RE-INSTALLED AFTER MAJOR MAINTENANCE. THE SUSPECT BEARING WAS INSPECTED PRIOR Apr 29, 1998 · N213AE · Bolkms BK117B1SDR 98ZZZX2089Support · crackedTURBINE REMOVED FOR 2,000-HOUR OVERHAUL AND DID NOT STATE THAT ENGINE OR TURBINE WAS SMOKING OR USING OIL. WHEN COMBUSTION REMOVED, DISCOVERED THE FIRST STAGE NOZZLE HAD OIL STAINS ON THE VANES AND THE GP SUPPORT HAD OIL STAINS AROUND THE STRUT THAT WAS CRACKApr 27, 1998 · N741SW · Skrsky S76ASDR AALA980833Bearing · failedSEA - FLT 128 - DURING CRUISE NRT-SJC, NR 3 ENGINE DID AN UNCOMMANDED SHUTDOWN DUE TO EGT SPIKE. FLIGHT CREW ACCOMPLISHED ENGINE SHUTDOWN CHECKLIST AND CONTINUED TO SJC AND LANDED WITHOUT FURTHER INCIDENT. NR 3 ENGINE WAS INSPECTED BY MX AND THE GEAR BOX WASApr 26, 1998 · N1762B · Doug MD11SDR UTVR98001Bearing · failedAFTER CAREFUL INSPECTION OF THE GP TURBINE AND RELATED COMPONENTS, OBSERVED THE NR 8 BEARING HAD CATASTROPHICALLY FAILED CAUSING THE CHIP DETECTOR IN THE COCKPIT TO INDICATE. THE AIRCRAFT WAS IMMEDIATELY GROUNDED. THE SUBSEQUENT INSPECTION REVEALED NO TELLTAApr 23, 1998 · N791CA · Bell 206L3SDR HEEA0014025Nozzle Shield · crackedENGINE REMOVED DUE TO TURBINE CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD DOME AS MARKED.Apr 22, 1998 · N5128 · Skrsky S76ASDR P5CA9800927Bracket · brokenBROKEN BRACKET NR 1 ENGINE TOP SUPPORT TO PRECOOLER ASSY. REPLACED PER M/M 72-50-00.Apr 21, 1998 · N851FT · Boeing 747122SDR HEEA0014003Nozzle Shield · crackedENGINE REMOVED DUE TO 3500 HOUR TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD DOME AREA ABOUT 45% AROUND.Apr 21, 1998 · N133AE · Bolkms BO105SSDR HEEA0014002Coupling · wornENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED: N1 COUPLING FAILED NO-GO GAUGE. INSTALLED A NEW N1 COUPLING.Apr 21, 1998 · N104PH · Bell 206B3SDR HEEA0014001Turbine Wheel · pittedRECEIVING INSPECTION REVEALED: PITS BEYOND SERVICEABLE LIMITS ON NR2 WHEEL BLENDED AREA E (AFT) AS MARKED. NOTE: BLENDING OF THESE PITS WOULD EXCEED OVERHAUL LIMITS OF .050 DEEP. INSTALLED A NEW NR2 WHEEL.Apr 21, 1998 · N911EB · Bolkms BO105SSDR HEEA0013995Nozzle Shield · crackedENGINE REMOVED DUE TO NR1 AND NR2 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD OUTER BAND.Apr 21, 1998 · N5426U · Skrsky S76ASDR HEEA0013994Nozzle Shield · crackedENGINE REMOVED DUE TO TURBINE CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD INNER BAND AS MARKED AND CRACK AT POSITIONING LUGS AS MARKED.Apr 21, 1998 · N131AE · Bolkms BO105SSDR HEEA0013981Turbine Wheel · defectiveENGINE REMOVED DUE TO TURBINE 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: CATASTROPHIC SULFIDATION ON ALL NR1 WHEEL BLADES. SCRAPPED NR1 WHEEL AND REPLACED WITH SERVICEABLE PART.Apr 20, 1998 · N8199J · Bolkms BO105SSDR HEEA0013980Turbine Wheel · defectiveENGINE REMOVED DUE TO TURBINE 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED: SEVERE SULFIDATION ON ALL NR3 WHEEL BLADES. SCRAPPED NR3 WHEEL AND REPLACED WITH SERVICEABLE PART.Apr 20, 1998 · N8199J · Bolkms BO105SSDR HEEA0013972Nozzle · defectiveRECEIVED NR4 NOZZLE AND ATTEMPTED TO MACHINE TIP PATHS. NOTED: COATING LIFTING AND FLAKING DURING MACHINING.Apr 16, 1998 · N22718 · Bell 206B3SDR 98ZZZX1690Nozzle · defectiveTHE SECOND STAGE EXHAUST STATOR HAD A BLADE BURNED THROUGH, CAUSE WAS TRACED TO BAD FUEL FLOW FROM FUEL NOZZLES THAT WERE POSSIBLY MAGNITIZED BY STARTER MAGNETIC FIELD. TESTING AND REPAIRS TO PARTS WERE CONDUCTED BY NORTH TEXAS TURBINES.Apr 9, 1998 · N25HA · Lear 25BSDR 99ZZZX622Nut · crackedPART WAS REJECTED FOR BACK-TO-BACK CRACKS .090 INCH/.125 INCH ON RIM, AS MARKED.Apr 8, 1998SDR 99ZZZX621Seal · crackedPART WAS REJECTED DUE TO NUMEROUS CRACKS ON INNER DIAMETER SURFACE.Apr 8, 1998SDR AU980683Engine · failed(AUS) NR 2 ENGINE SURGED TWICE BEFORE SHUTTING ITSELF DOWN. INVESTIGATION FOUND HEAT DAMAGE AROUND THE WIRING LOOM AND SOOT AROUND THE FUEL CONTROLS. BOTH FIRE BOTTLES WERE DISCHARGED. PART TC: 6,482.Apr 3, 1998 · Bell 412SDR AU980381Turbine · failed(AUS) NR 2 ENGINE POWER SECTION FAILED.Apr 3, 1998 · Bell 412SDR 98ZZZX1789Nozzle · failedNR 1 BLADE PATH BREAKING OUT NOZZLE NR 2. REMOVED AND REPLACED.Apr 1, 1998 · N911LF · Bolkms BO105SSDR 98ZZZX1788Nozzle · crackedCRACKED DIAPHRAGM. REMOVED AND REPLACED.Apr 1, 1998 · N911LF · Bolkms BO105SSDR CA980415025Bolt · fractured(CAN) ENGINE SENT FOR REPAIR AFTER OPERATOR REPORTED ACCESSORY GEARBOX/HP ROTATING ASSY HAD SEIZED. ON DISASSY, FOUND ENGINE LEAKING OIL AND SEIZURE OF ACCESSORY GEARBOX/HP ROTATING ASSY WAS CAUSED BY DEBRIS FROM FAILURE OF 2 HIGH PRESS STUBSHAFT BOLTS JAMMINMar 31, 1998SDR HEEA0013668Nozzle Vane · crackedENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED: NR 1 NOZZLE VANE CRACKED AND BURNT BEYOND SERVICEABLE LIMITS.Mar 30, 1998 · N2124Z · Bell 206L1SDR 98ZZZX3711Bearing · corrodedBEARING HAS EXCESSIVE PITTING. REPLACED WTIH NEW UNIT, CORRECTED PROBLEM.Mar 30, 1998 · N5194C · Bolkms BK117B1SDR 98ZZZX2338Turbine Suport · crackedFOUND CIRCUMFERENTIAL CRACKS IN THE POWER TURBINE SUPPORT RADIUS AREA. REPLACED TURBINE.Mar 30, 1998 · N492HL · Bolkms BO105CBSSDR 98ZZZX1682Bearing · failedAFTER A NORMAL FLIGHT (EXTERNAL LOAD) AND SHUT-DOWN, THE PILOT REPORTED AN ABNORMAL NOISE WHILE TURNING ROTOR BACKWARDS TO TIE-DOWN POSITION. UPON REMOVAL OF THE TURBINE MODULE, THE FORWARD HALF OF THE NR 5 BEARING INNER CAGE FELL OUT. (THIS IS A 1-PIECE UNIMar 30, 1998 · N49573 · Bell 206BSDR 98ZZZX1475Nozzle · burntGP NOZZLE WAS INSTALLED ON ENGINE THAT WAS SURGING. DURING INVESTIGATION, FOUND THE NEWLY OVERHAULED GP NOZZLE TO HAVE BURNED VANES. THERE ARE OTHER NOZZLES WITH SIMILAR DEFECTS NOTED ON OTHER INSTANCES. INVESTIGATION OF THIS MATTER IS ONGOING.Mar 30, 1998SDR TSAA9872190Turbine · failureFLT 81 - KOA-HNL - SERVICE VIBRATION ON NR 1 ENGINE AFTER TAKEOFF AND SUDDEN LOSS OF THRUST, EPR DECREASED FROM 1.98-1.5 EGT AT 550 ONE MINUTE THEN CLIMBED TO RED LINE. NR 1 THRUST REVERSER FOD DAMAGE. NR 1 TAILPIPE EXTENSION FOD DAMAGE. RETURNED AIRCRAFT TMar 29, 1998 · N820AL · Boeing 737230CSDR 98ZZZX3215Spacer · misinstalledHPN - NORMAL TAKEOFF EN ROUTE BAHAMAS. APPROX 1 HR EN ROUTE AT FL 310, PILOT NOTED NR 1 ENG VIBRATION INCREASE FROM .3 M/S TO .6 M/S AND INCREASE IN ENG NOISE. ALL OTHER ENG INDICATIONS WITHIN NORMAL PARAMETERS. ENG NOISE SUBSIDED THEN INCREASE IN ENG VIBRAMar 29, 1998 · N818TH · Cndair CL6001A11SDR AU980407Blade · separated(AUS) ENGINE POWER TURBINE BLADE SEPARATED APPROXIMATELY 12.7MM (0.5 INCH) FROM THE BLADE ROOT. ECONDARY DAMAGE TO OTHER BLADES AND EXHAUST DUCT ASSEMBLY.Mar 25, 1998 · Emb EMB110P2SDR HEEA0013508Nozzle · crackedENGINE REMOVED DUE TO OIL BLOWING OUT OF COMP. DISCHARGE. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE VANES, OUTERBAND AND KEYWELDS.Mar 23, 1998 · N513EH · Bell 206L1SDR TWAA9804206Blade · crackedSTL - FLT 173 - DURING TAKEOFF ROLL AT 80 KNOTS, LT ENGINE OIL QUANTITY AND PRESSURE FELL TO ZERO. ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED ENGINE. CHECK-C 12-9-97 MCI. S/D - FOURTH STAGE TURBINE BLADE AIRFOIL FAILED FROM FATIGUE CRACK AT BASE OFMar 20, 1998 · N9420D · Doug DC982
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