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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR CA961205020Blade · fractured(CAN) ENGINE WAS SENT FOR INVESTIGATION AND REPAIR AFTER THE ENGINE MADE A LOUD BANG AND FEATHERED SOME TIME AFTER TKAEOFF. DISASSEMBLY OF THE ENGINE REVEALED THE CAUSE OF THE INFLIGHT SHUTDOWN WAS A HP TURBINE BLADE WHICH HAD FRACTURED THROUGH THE FIR TREE ROSDR HEEA968537Nozzle · crackedENGINE REMOVED DUE TO AFT T/M LEAKS. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST RUN. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED AND BOWED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES. INSTALLED A STANDARD AERO OVERHAULED #1 NOZZLE.SDR 97ZZZX895Blade · overtempSUBMITTER CHECKED A NUMBER OF SERVICEABLE JT9D ST2 TURBINE BLADES OF PWA 1455 MATERIAL P/N 770102 WHICH HAD BEEN REMOVED FROM PREVIOUSLY OPERATED ENGINES AND FOUND THEM ALL TO EXHIBIT SIGNS OF AN OVERTEMPERATURE CONDITION AS DETAILED IN THE OEM ENGINE MANUAL. SDR 97ZZZX3932Rotor Assy · blade shiftENGINE FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 4,453.0.SDR 97ZZZX2751Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.SDR 97ZZZX2750Spring · wornSEAL RING EXPANDER SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.SDR 97ZZZX2746Bearing · pittedBEARING HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX90Turbine Wheel · failureROTORCRAFT SUFFERED AN UNCONTAINED TURBINE FAILURE CAUSING DAMAGE TO AIRCRAFT. NR 2 ENG FAILED AND TURBINE WHEEL ENTERED TAILBOOM TUNNEL CAUSING A 9 INCH TEAR IN CENTER OF FIRE WALL. HIT NR 1 T/R DRIVESHAFT HANGER BEARING SUPPORT, RIPPED MOUNTING. WHEEL THESDR 97ZZZX772Seal · crackedSEAL FOUND CRACKED AT SEALING FLANGE. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL TENSION AGAINST FIRST ROTOR ASSY. INCREASED TENSION RESULTS IN CRACKING AT FLANGE. PART IS A CRITICAL LIFE LIMITED ROTATING GROUP COMPONENT. LIMSDR 97ZZZX118Tie Bolt · failedIN PROCESS OF REPAIRING A C20B TURBINE, FOR UNUSUAL NOISE AND CHIP LIGHT, FOUND GP TIE BOLT SN DJ 59 BROKEN APPROXIMATELY .6250 INCH BELOW SPANNER NUT ON NR 1 WHEEL SIDE. CANNOT READ THE COMPLETE SERIAL NUMBER AS IT IS COVERED WITH CARBON. CROSS SECTION OF TSDR CA961118006Locking Bolt · low torque(CAN) DURING DISASSEMBLY FOR HSI ABOUT 1/4 CUP OF CARBON GRANUALS WERE REMOVED FROM THE LP TURBINE SHAFT INCLUDING A RING OF CARBON AROUND THE INTERSHAFT OIL TRANSFER TUBE. THE SECURING BOLT WAS UNSTAKED AND WHEN A SOCKET WAS APPLIED TO REMOVE THE BOLT, A TORQSDR HEEA968480Wheel · defectiveTURBINE REMOVED DUE TO 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.SDR HEEA968473Gearshaft · defectiveRECEIVING INSPECTION REVEALED: METAL DEPOSIT ON ONE SPUR ADAPTER GEARSHAFT GEARTOOTH. ALSO REMOVED FRONT SUPPORT DUE TO DEPTH BELOW SPECS ON FRONT SUPPORT FORWARD #1 BEARING HOUSING BORE. INSTALLED A NEW FRONT SUPPORT AND NEW SPUR ADAPTER GEARSHAFT. SUBMISDR HEEA968472Front Support · defectiveRECEIVING INSPECTION REVEALED: DEPTH BELOW SPECS ON FRONT SUPPORT FORWARD #1 BEARING HOUSING BORE. ALSO REMOVED SPUR ADAPTER GEARSHAFT DUE TO METAL DEPOSIT ON ONE SPUR ADAPTER GEARSHAFT GEARTOOTH. INSTALLED A NEW FRONT SUPPORT AND NEW SPUR ADAPTER GEARSHAFT.SDR AWXA9600669Turbine · failedAIR TURNBACK. WHEN APPLYING TAKEOFF POWER 1 OR 2, MINOR COMPRESSOR STALLS WERE FELT WITH ALL ENGINE INSTRUMENTS INDICATING NORMAL SO TAKEOFF WAS CONTINUED. AT ABOUT 12,000 FEET, NR 2 ENGINE HAD RAPID COMPRESSOR STALLS AND EGT WAS RED. SHUTDOWN ENGINE. BORESDR 97ZZZX2707Thrust Plate · wornTURBINE WAS GENERATING METAL. FOUND THE BEARING CLAMPING SURFACE OF THE THRUST PLATE WORN DUE TO SPINNING OF THE NR 8 BEARING OUTER RACE. FRETTING ON THE OPPOSITE SIDE OF THE THRUST PLATE INDICATED THERE MAY HAVE BEEN INSUFFICIENT TORQUE ON THE NR 8 BEARING SDR 97ZZZX97Nozzle Shield · damagedTHE NR 2 ENGINE FIRST STAGE TURBINE NOZZLE SHIELD WAS FOUND TO HAVE AN .8750 INCH BY 1.75 INCH SECTION MISSING AT THE 6 O'CLOCK POSITION. THIS DEFECT WAS FOUND DURING A ROUTINE INSPECTION. IT WAS SEEN THROUGH THE FUEL NOZZLE MOUNTING HOLE. AFTER REMOVAL OFSDR 97ZZZX770Bearing · failedREAR TURBINE BEARING FAILED RESULTING IN MOVEMENT OF MAIN ROTATING GROUP. SECONDARY DAMAGE INCLUDED SEVERE RUBBING OF ALL ROTATING COMPONENTS DUE TO FREE MOVEMENT OF MAINSHAFT CAUSED BY BEARING FAILURE. IMPACT DAMAGE ALSO AFFECTED EXHAUST GAS TEMPERATURE HARSDR 97ZZZX106Lpt Shaft · distortedENGINE WAS REMOVED FROM SERVICE DUE TO VIBRATION. DISASSEMBLY OF THE ENGINE REVEALED THAT AN OIL FIRE HAD OCCURRED IN THE N2 COMPRESSOR CENTER TUBE CAUSING THE LPT SHAFT TO DISTORT AND RUB WHICH RESULTED IN ENGINE VIBRATION. THE FAILURE IS STILL UNDER INVESTSDR 96ZZZX5939Bearing · damageSECONDARY DAMAGE DUE TO NR 2 BEARING FAILURE.SDR 96ZZZX5938Bearing · damagedSECONDARY DAMAGE DUE TO NR 2 BEARING FAILURE.SDR HEEA968409Combustion Liner · defectiveUPON INSTALLATION OF COMBUSTOR LINER NOTED: UNABLE TO INSTALL FUEL NOZZLE AND IGNITER PLUGS DUE TO MISALIGNMENT. REPLACED DISCREPANT PART.SDR 97ZZZX105Rotor Assy · damagedBLADES SUBJECTED TO CARBON BALL BLASTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. H53517-001. PART TOTAL CYCLES, 1973.9.SDR 97ZZZX102Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 2869.8.SDR CA961104004Turbine Section · failure(CAN) NR 2 ENGINE COMPRESSOR STALLED FOLLOWED BY VIBRATION WHEN APPLYING TAKEOF F POWER. TAKEOFF WAS REJECTED AND THE AIRCRAFT RETURNED TO THE RAMP. INSPECTION FOUND A MAJOR FAILURE OF THE TURBINE SECTION. THE NR 2 ENGINE WAS REPLACED.SDR P5CA9600850S-Rail · crackedCRACKED S-RAIL NR 4 ENGINE AT 10 O'CLOCK POSITION. WELD REPAIRED STRESS RELIEVED AND FLAP PEENED PER PRATT AND WHITNEY MAINTENANCE MANUAL 72-53-01.SDR P5CA9600848Turbine Case · crackedCRACKED S-RAIL NR 2 ENGINE, TWO PLACES 5 O'CLOCK AND 7 O'CLOCK. WELDED, STRESS RELIEVED AND FLAP PEENED PER PRATT AND WHITNEY MAINTENANCE MANUAL 72-53-01.SDR 96ZZZM1567Blade · crackedFOUND POWER TURBINE BLADE HALF MISSING.SDR P5CA9600825Turbine Case · crackedCRACKS IN R AND S RAILS AT 2 O'CLOCK POSITION. WELD REPAIRED AND STRESS RELIEVED PER PRATT AND WHITTNEY MAINTENANCE MANUAL 73-53-01, FLAP PEENED PER BOEING OVERHAUL MANUAL 20-10-03.SDR HEEA968386Gp Support · defectiveRECEIVING INSPECTION REVEALED: .0015 OVERSIZED ON GP SUPPORT #8 BEARING BORE I.D. B/P SPECS. (1.7050 - 1.7060) REQUESTING 100% WARRANTY REPAIR PER DAVID MENARD AND ROB HALDEMAN. THIS UNIT OVERHAULED ON DALLAS AIRMOTIVE W/O LF0828.SDR 97ZZZX2738Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA968378Lab Seal · excess runoutRECEIVING INSPECTION REVEALED: EXCESSIVE RUNOUT ON LAB SEAL BORE. TIR .006 INSTALLED AND NOT INSTALLED IN SUPPORT. INSTALLED A NEW LAB SEAL.SDR 97ZZZX104Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 3860.9SDR 97ZZZX103Rotor Assy · defectiveROTOR ASSY DUE SB LT101-72-10-0150. REQUIRES DISASSEMBLY AND INSPECTION OF THE ROTOR BROACH SLOTS FOR POSSIBLE CRACKS IN THE DISC/TENON AREA. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 4926.5.SDR 96ZZZX5874Stator Seal · crackedDURING PARTIAL DISASSEMBLY OF TURBINE TO REPLACE THE FIRST STAGE NOZZLE, FOUND CRACKS IN BEARING BORE AREA OF SEAL. UPON REMOVAL OF SEAL, NOTICED FRETTING ON OUTER DIAMETER. SUSPECT IMPROPER FIT OF SEAL IN SUPPORT.SDR HEEA968228Shield · defectiveRECEIVING INSPECTION REVEALED: .050 OUT OF FLATNESS BETWEEN #1 NOZZLE SHIELD OUTER BAND AND INNER BAND.SDR HEEA968227Nozzle · excess runoutDISASSEMBLED TURBINE DUE TO N1 TIP DRAG ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: EXCESSIVE RUNOUT .007 BEYOND SERVICEABLE LIMITS ON #2 NOZZLE #1 AND #2 TIP PATHS. INSTALLED A DALLAS AIRMOTIVE OVERHAULED #2 NOZZLE.SDR 96ZZZX5733Blade · failedENGINE WAS REMOVED FROM SERVICE DUE TO LOST POWER, LOW SPEED AND TURBINE DAMAGE. THE ENGINE WAS DISASSEMBLED TO DETERMINE CAUSE OF THE TURBINE DAMAGE. ONE T4 BLADE HAD FRACTURED IN HIGH CYCLE FATIGUE CAUSING MASSIVE TURBINE DAMAGE. THE FAILURE IS STILL UNDESDR CA961018028Pt Blade · fractured(CAN) TURBOMACHINE WAS SENT FOR INVESTIGATION AND REPAIR AFTER THE OPERATOR REPORTED 2ND STAGE PT BLADE DAMAGE. DISASSEMBLY FOUND THE CAUSE OF THE PT BLADE DAMAGE ON THE TURBOMACHINE WAS A FRACTURE OF ONE, 2ND STAGE PT BLADE HALF WAY DO WN THE AIRFOIL AND THESDR CA961024004Engine · hot start(CAN) HOT START #4 ENGINE. TEMPERATURE UP TO 970 DEGREES C. ENGINE WOULD NOT SHUTDOWN WITH POWER LEVER. T-HANDLE PULLED TO SHUT-OFF FUEL. FIRE EXTINGUISHER ACTIVATED. ENGINE REMOVED FOR HOT SECTION INSPECTION (HSI).SDR P5CA9600773R Rail · crackedNR 1 ENGINE 'R' RAIL IS CRACKED AT THE 7 O'CLOCK POSITION. WELDED, STRESS RELIEVED, AND PEENED IAW MM 72-53-01. PART TOTAL CYCLES, 15,294.SDR CA961016013Blade · fractured(CAN) ROUTINE HOT SECTION INSPECTION (HSI) FOUND THE ENGINE HAD SUFFERED A FRACTURE OF ONE LP PRESSURE TURBINE BLADE. THE FRACTURE OCCURRED AT 60 PERCENT OF THE BLADE HEIGHT AND CAUSED SECONDARY DAMAGE TO THE BALANCE OF THE LP BLADES AND TO THE OTHER TURBINE CSDR HEEA968024Engine · rumbleWHEN ENGINE IS HOT, THERE IS A RUBBING SOUND IN ENGINE. RUMBLE SOUND WITH HIGH FREQUENCY WHEN RUNNING.SDR CA961112037Bearing · leaking oil(CAN) INFLIGHT SHUTDOWN CARRIED OUT ON #1 ENGINE DUE TO LOSS OF OIL QUANTITY. POST FLIGHT INSPECTION FOUND NO OIL IN #1 ENGINE OIL RESERVOIR. OIL WAS COMING FROM THE ENGINE EXHAUST. #1 ENGINE CHANGED. THE OIL LOSS WAS DUE TO #6 BEARING FAILURE AND THE OIL WAS SDR HEEA967982Nozzle · crackedTURBINE REMOVED DUE TO CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON #2 NOZZLE VANES AND DIAPRAGM.SDR CA970131001Bearing · failed(CAN) DURING GROUND RUN PROCEDURE, THE MAGNETIC CHIP DETECTOR LIGHT CAME ON. ENGINE SHUT DOWN IN NORMAL CONDITION. METALLIC PARTICLES WERE FOUND ON THE BOTTOM OF THE CHIP DETECTOR. TURBINE REMOVED AND DISMANTLED. NR 5 BEARING BALL RETAINER FOUND BROKEN. FSDR 9620989873Turbine · failedDURING CLIMB AT FL270 A NOISE WAS HEARD, THE LEFT ENGINE EPR DROPPED TO 1.2. CREW DIVERTED TO ALB AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE.SDR CA961007009Housing · damaged(CAN) PART HAD BEEN SENT OUT FOR REWORK AND MOD SB 331-72-0462. AFTER RETURN, IT WAS FOUND THAT THREE OF THE FLANGE HOLES WERE BADLY ELONGATED AND HAD DEEP SURFACE WEAR. THE POINT OF WEAR IS THE ATTACH POINT FOR THE FCU SUPPORT BRACKET P/N 868767-1 AND THE ISDR 96UAL900748Turbine Blade · failedNR 2 ENGINE VIBRATION NOTICED WHEN REDUCING POWER FOR DESCENT, LOUDER AT LOWER N1'S. ALL ENGINE INSTRUMENTS NORMAL. *S/D* ONE T-4 BLADE FAILED AT THE AIRFOIL MID-SPAN. EXAMINATION SHOWS FAILURE MODE TO BE THAT OF STRESS RUPTURE DUE TO BLADE CREEP WHICH RESSDR CA961112005Bearing · failed(CAN) DURING FLIGHT, CHIP LIGHT ILLUMINATED AND POWER LOSS OCCURRED. AUTO ROTATION CARRIED OUT.
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