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 CA981230053Spacer · fractured(CAN) NR 2 ENGINE HAD HIGH VIBRATION AFTER TAKEOFF. ENGINE WAS SHUT DOWN AT 16,000 FEET. POST-FLIGHT INSPECTION FOUND THE SPACER BETWEEN THE 3-4 STAGE OF THE TURBINE WITH A 4 PIECE MISSING. THE DAMAGE INITIATED FROM A CRACK IN THE TIE ROD BOLT HOLE INNER THNov 4, 1998 · Doug DC932SDR AU981536Guide Vanes · damaged(AUS) NR 4 ENGINE FIRST STAGE HIGH PRESSURE NOZZLE GUIDE VANES DAMAGED AT APPROXIMATELY THE 8 O'CLOCK POSITION. PIECES MISSING FROM THE INNER SHROUD. COMBUSTOR BURNED WITH PIECES MISSING NEAR FUEL NOZZLES FROM THE 7 O'CLOCK TO 4 O'CLOCK POSITIONS.Nov 4, 1998SDR CA981116010Blade · damaged(CAN) FLIGHT CREW REPORTED POSSIBLE BIRD STRIKE DURING TAKEOFF. ALL PARAMETERS DURING FLIGHT OK. DURING BIRD STRIKE, CHECK FOUND THE FOLLOWING FAN BLADES DAMAGED 32, 33, 34, 35. DAMAGED BLADES REPLACED AND ENGINE GROUND RUN SERVICEABLE.Nov 2, 1998SDR 99ZZZX620Seal · crackedPART REJECTED AT FPI DUE TO CRACK 0.500 INCH LONG ON SMALL OUTSIDE DIAMETER BEND RADIUS. JOB FOR: WESTFIELD GAGE P.O. 97541.Nov 2, 1998SDR 99ZZZX613Seal · crackedPART REJECTED AT FPI DUE TO CRACKS IN 2 PLACES ON TOP SURFACE: CRACK 'A' = 2 INDICATIONS 0.015 INCH AND 0.020 INCH. CRACK 'B' = 1 INDICATION 0.250 INCH. JOB FOR: WESTFIELD GAGE (P.O. NR 97553).Nov 2, 1998SDR HEEA0016634Nozzle · failedENGINE REMOVED DUE TO NR 1 AND NR 2 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: RUNOUT EXCEED SERVICEABLE LIMITS ON NR 2 NOZZLE TIP PATHS .002 INCH RUNOUT OVER SPECS ON NR 1 TIP PATH. .001 INCH RUNOUT OVER SPECS ON NR 2 TIP PATH. INSTALLED OVERHOct 31, 1998 · N5128 · Skrsky S76ASDR HEEA0016633Nozzle · failedTURBINE DISASSEMBLED DUE TO N1 DRAG ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: TIP DRAG ON NR 2 NOZZLE 1ST STAGE TIP PATH. INSTALLED AN OVERHAULED NR 2 NOZZLE.Oct 31, 1998SDR CA981230044Blade · damaged(CAN) DURING START AT 16 PERCENT, PILOT HEARD A LOUD BANG. THE FUEL FLOW WAS GOOD, TEMP AT 410 CELSIUS. THEN A SECOND BANG AND TEMP AT 700 CELSIUS (MAX IS 570 CELSIUS). ENGINE WAS SHUTDOWN. INSPECTION FOUND LP TURBINE BLADES DEFORMED WITH PIECES OF STAGE 2 Oct 30, 1998SDR HEEA0016533Power Section · chafedPOWER SECTION CHAFED ON GEARBOX.Oct 28, 1998 · N107X · Bell 412SDR 99ZZZX1271Spring Carrier · spalledSPRING CARRIER FAILED IN POWER TURBINE. METAL PICK-OUT AT BEARING MATING SURFACE. REMOVED AND REPLACED SPRING CARRIER.Oct 28, 1998 · N911MK · Bell 222SDR 99ZZZX1694Pt Rotor · damagedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 5,451.2.Oct 26, 1998 · N428MB · Bolkms BK117A3SDR 99ZZZX1689Pt Rotor · damagedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 5,838.0.Oct 24, 1998 · N202HN · Bolkms BK117A3SDR 99ZZZX3802Bearing · damagedPOWER TURBINE HAD SECONDARY DAMAGE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 22, 1998 · N527RM · Bolkms BK117A4SDR 99ZZZX3786Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 22, 1998 · N527RM · Bolkms BK117A4SDR 99ZZZX3785Bearing · leakingBEARING LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 22, 1998 · N527RM · Bolkms BK117A4SDR 99ZZZX224Locking Cup · looseLOCK CUP CAME LOOSE.Oct 22, 1998 · N527RM · Bolkms BK117A4SDR 99ZZZX221Nut · damagedSECONDARY DAMAGE TO LOCK CUP FAILURE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 22, 1998 · N527RM · Bolkms BK117A4SDR 99ZZZX1808Spring · wornSPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3SDR HEEA0016169Nozzle · damagedRECEIVING INSPECTION REVEALED: UNABLE TO OBTAIN RUNOUTS IN LIMITS WHEN INSTALLED IN FIXTURE. OBTAINED .005 TIR ON BOTH TIP PATHS.Oct 16, 1998SDR 99ZZZX60Blade · damagedDURING INSPECTION FOUND NUMEROUS FAN BLADES DAMAGED ON RIGHT ENGINE. FOUND RIVET MISSING AT 6 O'CLOCK POSITION ON ENGINE INLET LIP AND THREE LOOSE RIVETS. SUSPECT INCORRECT INSTALLATION PROCEDURES USED FOR BLIND RIVETS DURING REPAIR. ENGINE INLETS WITH BLINOct 15, 1998 · N38PA · Braero HS125700ASDR TWAA9816302Seal · leakingENGINE LOW OIL PRESSURE LIGHT CAME ON IN FLIGHT, OIL PRESSURE WAS LOW AND QUANTITY WAS DROPPING. SHUT DOWN ENGINE. REPLACED NR 6 BEARING SCAVENGE PUMP GARLOCK SEAL ACCOUNT LEAKING, AND TUBE PRECAUTIONARY. TUBE MFG RD2189-1. CHECK-C 5-21-98 MCI.Oct 9, 1998 · N54354 · Boeing 727231SDR 98ZZZX4616Turbine Wheel · damagedENGINE COULD NOT BE TURNED BY HAND ON PRE-FLIGHT. THIRD ROTOR WAS FOUND TO HAVE PIECES MISSING FROM T-BLADES. ENGINE TEAR DOWN REVEALED THAT SEVERAL PLUGGING RIVETS INSTALLED IN HOLES AT THE BLADE ROOTS ON SECOND ROTOR HAD BROKEN. THE FLARED END ON ALL RIVEOct 9, 1998 · N11MM · Cessna 441SDR 98ZZZX4216Lpt Shaft · twistedENGINE WAS REMOVED FROM SERVICE DUE TO AN IN-FLIGHT SHUTDOWN. DISASSEMBLY OF THE ENGINE REVEALED THE NR 3 BEARING HAD FAILED AND THE LPT SHAFT TWISTED AT THE HPC CENTER TUBE. FAILURE INVESTIGATION IS IN PROCESS AT GE ENGINE SERVICES - DALLAS.Oct 9, 1998SDR HEEA0016124Collector · mismanufacturedRECEIVING INSPECTION REVEALED: MEASURED .085 INCH OVER BP SPECS (.105 INCH - .110 INCH) ON EXHAUST COLLECTOR FLANGE. PART OVERHAULED ON W/O NR 15644.Oct 6, 1998 · Bolkms BO105SSDR HEEA0016123Nozzle · mismanufacturedRECEIVING INSPECTION REVEALED: VOIDS IN NR 4 NOZZLE TIP PATHS. PART OVERHAULED ON WO NR L174496.Oct 6, 1998 · N967MB · Bolkms BO105SSDR HEEA0016120Support · bentRECEIVING INSPECTION REVEALED: BEND BEYOND SERVICEABLE LIMITS ON G.P. SUPPORT PRESSURE OIL STRUT. PART OVERHAULED W/O 16671.Oct 6, 1998 · N7077B · Bell 206L4SDR CA990203015Blade · fractured(CAN) NR 2 ENGINE FAILED IN CLIMB. IN-FLIGHT SHUTDOWN CARRIED OUT AT 9,400 FEET, SPEED 250 KNOTS, BIG BANG FELT/HEARD, WITH HIGH EGT AND LIGHT ON. FLIGHT RETURNED TO ITS DEPARTURE POINT. BORESCOPE INSPECTION FOUND 1ST STAGE TURBINE BLADE FRACTURED AND DOWN Oct 2, 1998 · Boeing 747133SDR 99ZZZX1281Rotor Assy · defectivePOSSIBLY IMBALANCE OF ROTOR. C/W SB 0192. REMOVED AND REPLACED.Sep 28, 1998 · N117M · Bolkms BK117A1SDR 99ZZZX1118Nozzle · crackedTHE FAA-PMA NOZZLE WAS REMOVED FROM AN ALLISION 250-C20B TURBINE THAT WAS RECEIVED FOR OVERHAUL. UPON FLUORESCENT PENETRANT INSPECTION, FOUND A SERIES OF CRACKS ON BOTH SIDES OF THE DIAPHRAGM IN THE RADIUS OF THE BEND AT ITS OUTER DIAMETER. THE CRACKS ON THESep 24, 1998SDR 99ZZZX1280Rotor Assy · damagedSEALING PLATE IS SEPARATING FROM BLADES. REMOVED AND REPLACED.Sep 22, 1998 · N911LW · Bell 222SDR 98FDEA00581Turbine · failedAT ROTATION, HEARD LOUD POP FROM RT SIDE OF A/C. ENG NR 3 HAD ROLL BACK TO EPR, OF 1.80, N1=80 PERCENT, EGT=500 DEG CELSIUS, N2=80 PERCENT, FUEL FLOW=5,000 LBS. ENG NR 1 AND NR 2 IND NORM PWR, CONT T/O AND CLIMBOUT. ACCOMPLISHED ENG FAIL/SEVERE DAMAGE CKLISSep 18, 1998 · N282FE · Boeing 727233SDR HEEA0016047Turbine · malfunctionedSMOKE ON LANDING AND SHUT DOWN. PART TOTAL CYCLES, 1,687.Sep 17, 1998SDR 98ZZZX4013Nut · brokeTURBINE NUT FAILED ON ENGINE RUN-UP. ROTATING GROUP BECAME UNSTACKED RESULTING IN SHUTDOWN OF ENGINE. REPAIRED IAW TPE331 MM. C/W SB 72-0935, IMPROVED TURBINE NUT. FAILED NUT HAD BEEN INSTALLED PER SB 72-0592 AT ENGINE OVERHAUL.Sep 17, 1998 · N193CS · Swrngn SA226TBSDR HEEA0016046Wheel · mismanufacturedRECEIVING INSPECTION REVEALED: MEASURED .010 INCH OVER SPECS (7.506 INCH - 7.508 INCH) ON NR 3 WHEEL OUTSIDE DIAMETER. INSTALLED A NEW NR 3 WHEEL.Sep 16, 1998 · N7136H · Bolkms BO105SSDR USAASB98237Bearing · failedCLT - FLT 1782 - CAPTAIN REPORTED THE NR 1 ENGINE EXPERIENCED COMPRESSOR STALLS AT FL 370, REPEATED AT FL 350, THEN A SUSTAINED SURGING AT FL 310. CREW ELECTED TO DIVERT TO CLT WHERE THE FLIGHT LANDED WITHOUT INCIDENT. NO EMERGENCY WAS DECLARED. DURING TAXISep 11, 1998 · N514AU · Boeing 7373B7SDR HEEA0016036Bearing · failedBEARING FAILURE, FOUND METAL SHAVING ON SEALS AND ROUGH ROTATION. REPLACED WITH SERVICEABLE BEARINGS.Sep 11, 1998 · N2743E · Skrsky S76ASDR CA980928019Carbon Seal · failed(CAN) THE PILOT OBSERVED FLUCTUATIONS IN TORQUE AND OIL PRESSURE, AS WELL AS VISIBLE OIL VENTING FROM THE ENGINE. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT LANDED. POST-FLIGHT INSPECTION FOUND A MISSING SECTION OF THE 1ST STAGE TURBINE WHEEL CREATED AN IMBALSep 11, 1998 · Mtsbsi MU2B36SDR AU981162Harness · failed(AUS) NR 1 ENGINE NTL HARNESS FAULTY. PART TC: 6,171.Sep 11, 1998 · Snias AS332LSDR P5CA9801476Flange · crackedFOUND RADIAL OD LIGHTENING HOLE CRACK, R FLANGE AT 10:00 POSITION. WELD REPAIRED PER MM 72-53-01 REPAIR 22.Sep 10, 1998 · N850FT · Boeing 747122SDR 98ZZZX4189Blade · failedDURING CRUISE, NR 2 ENGINE EXPERIENCED A RAPID RISE IN INTERSTAGE TURBINE TEMPERATURE (ITT) AND VIBRATION LEVEL. THRUST WAS REDUCED TO IDLE. A SAFE LANDING WAS MADE AT NEW ORLEANS INTERNATIONAL AIRPORT (MSY). ENGINE WAS REMOVED FROM AIRCRAFT FOR INVESTIGATISep 9, 1998 · N28MJ · Lear 35ASDR 99ZZZX561Seat · crackedSAME AS SEVERAL OTHERS OF SAME PART NUMBER. CRACKS IN CHROME SEAL FACE APPEAR TO BE TRANSFERRING INTO BASE MATERIAL.Sep 6, 1998SDR 99ZZZX560Seat · crackedCRACKS IN CHROME SEAL FACE SEEM TO BE TRANSFERRING INTO BASE MATERIAL.Sep 5, 1998SDR 99ZZZX227Nut · looseDURING TAKEOFF, AIRCRAFT'S NR 1 ENGINE EXPERIENCED AN UNCOMMANDED DECELERATION TO IDLE. THE AIRCRAFT LANDED WITHOUT ANY FURTHER INCIDENT. THE ENGINE WAS REMOVED AND SENT TO CORPORATE JETS, INC. DURING TEAR-DOWN INSPECTION, TECH FOUND THE NUT ON THE P.T. RETSep 5, 1998 · N117LG · Bolkms BK117A3SDR 99ZZZX618Seal · crackedPART REJECTED DUE TO CRACKS - 2 PLACES ON TOP FACE 0.750 INCH AND 1.500 INCH LONG (CRACKS VERIFIED BY MICROSCOPE).Sep 4, 1998SDR HEEA0015945Wheel · mismanufacturedENGINE REMOVED DUE TO COMPRESSOR OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: MEASURED .006 INCH OVER BLUE PRINT SPECS. (6.190 INCH - 6.191 INCH) ON NR 1 WHEEL OUTSIDE DIAMETER. INSTALLED A NEW Sep 3, 1998 · N50293 · Bolkms BO105SSDR AU981453Nozzle · cracked(AUS) HIGH PRESSURE TURBINE STAGE TWO NOZZLE SEGMENTS (3 OFF) CRACKED.Sep 3, 1998SDR AU981261Nozzle · cracked(AUS) ENGINE HIGH PRESSURE TURBINE STAGE TWO NOZZLE SEGMENTS (2OFF) SEVERELY CRACKED.Sep 3, 1998SDR AU981135Turbine Disc · cracked(AUS) RIGHT ENGINE FIRST STAGE HIGH PRESSURE TURBINE BLADE TIPS CRACKED. FURTHER INVESTIGATION FOUND A RADIAL CRACK ON THE FORWARD FACE OF THE FIRST STAGE DISC. THE LENGTH OF THE CRACK WAS APPROXIMATELY 100 MM (4 INCHES) EXTENDING APPROXIMATELY 50.8 MM (2 INSep 3, 1998SDR 98ZZZX4741Seal · failedIN CRUISE FLIGHT, NR 1 ENGINE OIL PRESSURE BEGAN TO DROP. PILOT SECURED ENGINE, PROCEEDED ON TO SHORE BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAK AT NR 647 SCAVAGE STRUT. REF: G-20 IPC, CHAPTER 72-50-00, FIGURE 1, ITEM 32.Sep 2, 1998 · N8197X · Bolkms BO105SSDR 98ZZZX3505Seal · failedIN CRUISE FLIGHT, NR 1 ENGINE OIL PRESSURE BEGAN TO DROP. PILOT SECURED ENGINE, PROCEEDED ON TO SHORE BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAK AT NR 6 AND NR 7 SCAVAGE STRUT. REF: ALLISON C-20 IPC, CHAPTER 72-50-00, FIGURE 1, ITEM 32.Sep 2, 1998 · N8197X · Bolkms BO105S
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