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 96ZZZX5574Case · crackedDURING SCHEDULED HOT SECTION INSPECTION, MAINTENANCE FOUND GAS GENERATOR CASE CRACKED. CRACK EXTENDS APPROXIMATELY ONE INCH HORIZONTALLY AT THE 2 O'CLOCK POSITION JUST FORWARD OF DIFFUSER TUBE. ENGINE REMOVED FOR REPAIR.Sep 25, 1996 · N235AV · Beech C99SDR 9620532713Turbine · failureAFTER TAKEOFF AT 1,500 FEET AGL, THE NR 2 ENGINE BEGAN VIBRATING, EGT REDLINED AND EPR N1 INDICATIONS WERE DECREASING. CREW PERFORMED A PRECAUTIONARY SHUTDOWN OF NR 2 ENGINE AND RETURNED TO DEN WHERE THEY LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 2Sep 24, 1996 · N716RC · Boeing 7272S7SDR 96ZZZX5449Nozzle Shield · elongated holesUPON DISASSEMBLY OF THE TURBINE FOR REPLACEMENT OF THE FIRST STAGE NOZZLE, FOUND FRETTING WEAR ON THE SHEATHS OF THE TOT HARNESS PROBES, AND ELONGATED HOLES IN THE THIRD STAGE NOZZLE SHIELD WHERE THE PROBES PASS THROUGH. TOT HARNESS REQUIRED REPLACEMENT.Sep 23, 1996SDR 97ZZZX47Spring · wornSEAL RING SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Sep 16, 1996 · N10UM · Bolkms BK117B1SDR 97ZZZX46Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Sep 16, 1996 · N10UM · Bolkms BK117B1SDR 96UAL900703Turbine Blade · brokenNR 2 ENGINE SECOND STAGE HIGH PRESSURE TURBINE BLADE DAMAGED BEYOND LIMITS. *S/D* ONE HPT 2ND STAGE BLADE WAS SEPARATED ALONG A LINE PARALLEL TO THE BLADE CHORD AND APPROXIMATELY 1.5 INCHES OUTBOARD OF THE BLADE PLATFORM. PRIME CAUSE OF FAILURE WAS INTERNALSep 14, 1996 · N1838U · Doug DC1010SDR 96ZZZX5043Blade · failureENGINE EXHIBITED HIGH VIBRATION IN SERVICE. DISASSEMBLY INSPECTION REVEALED T-2 BLADE FAILURE AND CONSEQUENTIAL DAMAGE TO THE 2ND, 3RD, AND 4TH AIRFOILS. THE CAUSE OF FAILURE IS UNDER INVESTIGATION.Sep 12, 1996SDR CA961001006Turbine · damaged(CAN) ON APPROACH, ENGINE SHUT DOWN AND THE PROPELLER FEATHERED. THE LANDING WAS ACCOMPLISHED WITHOUT INCIDENT. THE FLIGHT CREW CHECKED THE L/H ENGINE AND FOUND THAT THE PROPELLER COULD NOT BE TURNED BY HAND. MAINTENANCE DISPATCHED AND ENGINE REPLACED. FIELD RSep 11, 1996 · Swrngn SA226TCSDR CA960923010Tie Bolt Nut · wrong part(CAN) ON MORNING WALK-AROUND, ENGINE WAS STIFF TO ROTATE. ENGINE REPLACED. ENGINE WAS DIS-ASSEMBLED BY FIELD REP AND FOUND THAT NR 2 TURBINE WHEEL TIE BOLT NUT WAS NOT THE ONE STATED IN THE LATEST SB (331-72-0592, 9/88). NUT P/N SHOULD HAVE BEEN 3108066-1 NSep 11, 1996 · Swrngn SA226TCSDR CALA9601276T4 Blade · failedTAKEOFF WAS ABORTED AT APPROXIMATELY 50 KNOTS AFTER THE NR 2 ENGINE LOST POWER. THE POWER LOSS WAS ACCOMPANIED BY A LOUD POP. THE AIRCRAFT WAS RETURNED TO THE GATE. MAINTENANCE FOUND THE NR 2 ENGINE TURBINE HAD FAILED. THE NR 2 ENGINE WAS REMOVED AND REPLASep 9, 1996 · N33817 · Doug DC982SDR AWXA960375Turbine Blade · failedLAS - FLT 2976 - AIR TURN BACK, AT CLIMB POWER FL 200 NR 1 ENGINE COMMENCED SEVERE VIBRATIONS. ALL ENGINE INDICATIONS NORMAL. RETARDED THRUST LEVER. VIBRATIONS CONTINUED. SHUTDOWN ENGINE IAW QRH. RETURNED LAS. FOUND TURBINE WHEEL BLADES MISSING MATERIAL.Sep 9, 1996 · N141AW · Boeing 7372M8SDR 96ZZZX5539Nozzle · crackedUPON MAJOR REPAIR OF TURBINE, FOUND WEB OF OUTER BAND SEEMS TO HAVE BEEN MACHINED BELOW SPECS AND REPLATED. THIS CAUSED A WEAK SPOT IN FLANGE OF NOZZLE THAT CRACKED AND WENT INTO BOTH BLADE TIP PATHS. NOZZLE IS TO BE SCRAPPED. ASSURE THAT PARENT METAL IS MASep 9, 1996 · N702AL · Skrsky S76SDR 96ZZZM1437Bearing Seal · looseAIRCRAFT DEPARTED MEXICO CITY, CANCUN, EN ROUTE NR 2 ENGINE OIL BYPASS LIGHT CAME ON AND ENGINE TEMPERATURE STARTED TO RISE. NR 2 ENGINE SHUT DOWN, PROCEED TO CANCUN AND LANDED COMPLETE. INVESTIGATION REVEALED OIL SEAL LOOSE IN THE NR 6 BEARING SCAVANGE PUMPSep 7, 1996 · N1993 · Boeing 72723SDR ERAA96307Nozzle · defectiveNOZZLE WAS OVERHAULED AND RET'D TO ERA 7-22-96. NOZZLE IS NOT FUNCTIONAL. COMBUSTION LINER WILL NOT INSERT TO SHIELD.Sep 6, 1996 · Bolkms BO105SSDR ERAA96301Tie Bolt Nut · defectiveOIL LEAKING PAST TIE BOLT NUT. SENDING TO EXTEX FOR EVALUATION TO DETERMINE CAUSE. OTHER PARTS AFFECTED ARE TIE BOLT P/N A23008020, S/N H144, #2 WHEEL P/N 6898782, S/N HX115226, #1 WHEEL P/N 6886407, S/N X134859, SPLINED ADAPTER, P/N6898784, S/Sep 5, 1996 · N125EH · Bolkms BO105SSDR HEEA967783Nozzle · defectiveENGINE REMOVED DUE TO UNABLE TO INSTALL 6 & 7 OIL PRESSURE NOZZLE. UPON INSPECTION OF TURBINE PARTS NOTED: EXCESSIVE RUNOUT BEYOND SERVICEABLE LIMITS ON #2 NOZZLE 1ST (.006 RUNOUT) AND 2ND (.005 RUNOUT) TIP PATHS. REPLACED DISCREPANT PART.Sep 4, 1996 · N9190Y · Bolkms BO105SSDR HEEA967779Nozzle · out of specsRECEIVING INSPECTION REVEALED: MEASUREMENT ON #1 NOZZLE DIMENSION (A) .019 BELOW CEB72-2103R-6 SPECS, (B) .005 BELOW BLUEPRINT SPECS, (C) .012 BELOW BLUEPRINT SPECS.Sep 4, 1996SDR COMA9610274Bolt · brokenNO NP OR TORQUE INDICATION AFTER ENGINE START. PROPELLER WAS NOT ROTATING. AFTER ENGINE SHUT DOWN THE PROPELLER COULD NOT BE TURNED BY HAND. WHEN ENGINE DISASSEMBLED, A BROKEN INTERSTAGE CASE BOLT WAS FOUND TO BE JAMMING THE 1ST STAGE POWER TURBINE DISK. BSep 4, 1996 · N196CA · Emb EMB120RTSDR 96ZZZX5046Nozzle · pluggedAT DISASSEMBLY, THE NR 3 BEARING WAS FOUND COMPLETELY DESTROYED. IT APPEARS TO BE OIL STARVATION DUE TO THE NR 3 AND NR 4 BEARING OIL NOZZLE BEING PLUGGED. WHEN THE NOZZLE WAS FLOW CHECKED, IT REVEALED 3 OF THE 4 OIL PORTS WERE PLUGGED. THE BLOCKAGE APPEARS Sep 2, 1996 · N35YV · Beech 1900DSDR 96ZZZX5069Mid Frame · ceramic flakingBLADE TIP SEALING CERAMIC FLAKED OFF 30 TO 40 PERCENT OF AREA. NO DETECTABLE RESULTING DISCREPANCY. DISCOVERED DURING SCHEDULED 600 HOUR INSPECTION BORESCOPE INSPECTION. NEW INNER MID-FRAME ASSY INSTALLED TO CORRECT PROBLEM. AFTT: 3,358 HOURS. LE TT: 3,Sep 1, 1996 · N200WY · Amd FALCON200SDR 96ZZZM1329Gas Generator · failedDURING TAKEOFF ROLL AT PHX, CREW AND PASSENGERS NOTICED SPARKS AND FLAMES COMING FROM RIGHT ENGINE. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE FOUND COMPRESSOR FODDED. (M)Sep 1, 1996 · N76YV · Beech 1900CSDR 96ZZZM1332Turbine · failedDURING APPROACH TO DIA, LEFT ENGINE SURGED AND LOW OIL PRESSURE ANNUNCIATOR ILLUMINATED. CREW NOTICED SMOKE COMING FROM LEFT EXHAUST STACKS. SECURED LEFT ENGINE AND LANDED WITHOUT INCIDENT. (M)Aug 29, 1996 · N35YV · Beech 1900DSDR 96ZZZM1331Gas Generator · failedDURING APPROACH TO DIA, LEFT ENGINE SURGED AND LOW OIL PRESSURE ANNUNCIATOR ILLUMINATED. CREW NOTICED SMOKE COMING FROM LEFT EXHAUST STACKS. SECURED LEFT ENGINE AND LANDED WITHOUT INCIDENT. (M)Aug 29, 1996 · N35YV · Beech 1900DSDR ERAA96300Nozzle · defectiveOVERHAULED AND REC'D BACK AT ERA 8-5-96. SEAL AND TIP PATHS WON'T RUN OUT WITHIN LIMITS.Aug 23, 1996 · N299EH · Bolkms BO105ASDR DL73E961961Turbine · failedNR 2 ENGINE HAD TURBINE FAILURE ON TAKEOFF ROLL.Aug 23, 1996 · N374DL · Boeing 737247SDR CA960909043Case · bolt failed(CAN) THE ENGINE WAS REMOVED FROM SERVICE AFTER THE OPERATOR NOTED EXTENSIVE POWER TURBINE DAMAGE DURING A ROUTINE WALK AROUND. TEARDOWN OF THE ENGINE REVEALED AN INTERSTAGE CASE BOLT HAD FRACTURED LIBERATING THE BOLT HEAD CAUSING DAMAGE TO THE 1ST STAGE POWERAug 23, 1996SDR BSAA082396Nut · brokenGDV - ENGINE HARD TO PULL THROUGHT AND NOISEY. FOUND AFT TURBINE NUT (P/N 865082-1) BROKEN ALLOWING TURBINE RUB. PERFORMED COMPLETE ENGINE TEARDOWN AND INSPECTION FOR DAMAGE. PARTS WILL BE REPLACED AS REQUIRED AND MAINTENANCE CHECKS COMPLETED. (M)Aug 23, 1996 · N115BS · Swrngn SA226TCSDR 96ZZZX4717Air Seal · defectiveDURING AN UNSCHEDULED MAINTENANCE EVENT, FOUND AN P/N 3073354-3, AIR SEAL WAS INSTALLED IN THE TRANSITION DUCT, P/N 3072726-2, S/N 1-01345-3990. SB TFE731-72-3577, REV ZERO, ADDRESSES THIS SUBJECT.Aug 21, 1996SDR CA960916022Bolts · fractured(CAN) UPON TEARDOWN OF ENGINE IT WAS REVEALED THAT 11 OF THE 26 RETAINING BOLTS FOR THE COOLING BAFFLE WERE FRACTURED. THIS IS AN ON GOING PROBLEM. THE SUBMITTER STATES THAT PRATT & WHITNEY HAS INTRODUCED A NUMBER OF MODS TO DATE WHICH HAS NOT ADDRESSED THE PRAug 20, 1996SDR 96ZZZX5052Engine · failureIN-FLIGHT SHUTDOWN AND ENGINE WAS REMOVED FROM AIRCRAFT DUE TO TURBINE FAILURE. 1ST, 2ND, 3RD, AND 4TH TURBINE BLADES AND 2ND, 3RD, AND 4TH NOZZLE GUIDE VANES SUSTAINED EXTENSIVE DAMAGE. EXACT CAUSE HAS NOT BEEN DETERMINED AT THIS TIME. IT IS SUSPECTED THE 2Aug 20, 1996SDR CA960909045Pt Blade Lp · airfoil fracture(CAN) THE AIRCRAFT WAS CLIMBING THROUGH 6,000 FEET WHEN THE PILOT NOTED A DROP IN OIL PRESSURE FOLLOWED BY A LOUD BANG. A FIREBALL WAS OBSERVED AND THE ENGINE SUBSEQUENTLY SHUTDOWN. THE CAUSE OF THE IN-FLIGHT SHUTDOWN WAS THE FAILURE OF THE #4, #5 AND #6 BEARIAug 19, 1996SDR CALA9601189T4 Blade · brokenTHE NR 1 ENGINE FAILED WHILE EN ROUTE. THE AIRCRAFT WAS RETURNED TO LAS WHERE IT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS TAKEN OUT OF SERVICE FOR ENGINE REPLACEMENT. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. *S/D* SHOP FINDINGAug 17, 1996 · N10801 · Doug DC982SDR ERAA96292Nozzle · defective#2 NOZZLE WAS OVERHAULED. ERA REC'D BACK AT ERA 7-18-96. SEAL BORE TOO LARGE. PROTRUSIONS ON THE INNER BAND, NEEDS TO BE REMOVED.Aug 16, 1996 · N135EH · Bolkms BO105ASDR 97ZZZX60Seal Ring · wornSEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH UNIT UNITS, CORRECTED PROBLEM.Aug 16, 1996 · N10UM · Bolkms BK117B1SDR 97ZZZX59Spring · wornSEAL RING SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.Aug 16, 1996 · N10UM · Bolkms BK117B1SDR HEEA967654Nozzle · defectiveENGINE REMOVED DUE TO SMOKE ON SHUTDOWN. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL (-8.4). TURBINE PRODUCED -0- POWER WITH OVERHAULED REPLACEMENT NOZZLE. REPLACED DISCREPANT PART.Aug 15, 1996 · N721MB · Bolkms BO105SSDR HEEA967653Nozzle · defectiveRECEIVING INSPECTION REVEALED: MISALIGNED BEYOND SERVICEABLE LIMITS #1 NOZZLE SHIELD OUTER BAND AND DOME FLANGE AS MARKED. DOES NOT FIT ON #1 NOZZLE. REPLACED DISCREPANT PART.Aug 15, 1996SDR HEEA967649Case · defectiveUPON TURBINE ASSEMBLY NOTED THE FOLLOWING: UNABLE TO FIT AIR TUBE RETAINING RING INTO COMB CASE RING GROOVE. REPLACED DISCREPANT PART.Aug 13, 1996 · N5421E · Bolkms BO105SSDR HEEA967648Internal Sump · leakingRECEIVING INSPECTION REVEALED: LEAKING THROUGH INTERNAL SUMP GRAPHITE DURING PRESSURE CHECK. REPLACED DISCREPANT PART.Aug 13, 1996 · N7136J · Bolkms BO105SSDR HEEA967646Shaft · defectiveRECEIVING INSPECTION REVEALED: PLATING MISSING ON THE OUTER PT SHAFT SEALING SURFACE. REPLACED DISCREPANT PART.Aug 13, 1996 · N2250U · Bell 206L1SDR CALA9601167T1 Blade · fracturedTHE NR 1 ENGINE ROLLED BACK TO 1.4 EPR AND AIRCRAFT VIBRATION WAS FELT AFTER GEAR RETRACTION. THE NR 1 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO CAE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 1 ENGINE DAMAGED. THE NR 1 ENGINE WASAug 13, 1996 · N10248 · Boeing 737219SDR CA960910039Turbine Assy · damaged(CAN) DURING OPERATIONS, THE PILOT HEARD A VIOLENT NOISE FROM HIS RIGHT SIDE. INSTRUMENTS CONFIRMED ENGINE WAS LOST. PILOT PICKED UP AIRSPEED AND WAS ABLE TO CARRY OUT A ONE ENGINE LANDING. PRELIMINARY INVESTIGATION REVEALED SUBSTANTIAL DAMAGE TO THE FIRST Aug 13, 1996 · Aerosp AS355F1SDR MZZA96064Turbine · failedFLT NR 915 - GUM - ON TAKEOFF HEARD LOUD EXPLOSION, THEN CAW NR 1 ENGINE FAIL LIGHT CAME ON. EPR WENT TO ZERO, HOWEVER, EGT, N1 AND N2 APPEARED NORMAL. LOUD RUMBLE HEARD FROM NR 1 ENGINE WHEN AT IDLE. FOUND TURBINE SECTION FAILED. REMOVED AND REPLACED NR 1Aug 11, 1996 · N15781 · Boeing 727232SDR ARWA9608002T3 Disc · crackedDURING ROUTINE ACCOMPLISHMENT OF AD 82-14-02, ENGINE S/N 669162, NR 4 POSITION, EDDY CURRENT INSPECTION INDICATED T3 DISK CRACKED THROUGH ONE TIEBOLT HOLE. T3 DISK ASSEMBLY WAS REMOVED AND REPLACED I.A.W. OA 1349 AND JT3D MAINTENANCE MANUAL CHAPTER 72. INSTAAug 10, 1996 · N810BN · Doug DC862SDR C2XA96IA185Turbine · failedIAH - FLT 3908 - PILOT REPORTED, THAT THE LEFT ENGINE EMITTED A LOW RUMBLE/VIBRATION DURING APPROACH. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE LEFT ENGINE AND FOUND THE 2ND STAGE POWER TURBINE TO BE DAMAGED. MAINTENANCE REMOVED AND REAug 8, 1996 · N40717 · Emb EMB120RTSDR CALA9601137T3 Blade · brokenA LOUD BANG WAS HEARD AND THE AIRCRAFT EXPERIENCED VIBRATION DURING CLIMBOUT.T HE NR 1 ENGINE N1 AND N2 BOTH SPOOLED DOWN AND EGT ROSE TO APPROXIMATELY 630 DEGREES. THE ENGINE THROTTLE WAS REDUCED TO IDLE AND THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED Aug 7, 1996 · N16892 · Doug DC982SDR C2XA96IA184Turbine · failedILE - FLT 3997 - PILOT REPORTED THAT UPON TAXI, THE RIGHT ENGINE EMITTED A LOW GRADE RUMBLE/VIBRATION, AT APPROXIMATELY 60 PERCENT. THE AIRCRAFT RETURNED TO THE GATE, AND MAINTENANCE INSPECTED AND FOUND THE 2ND STAGE POWER TURBINE TO BE DAMAGED. MAINTENANCE Aug 5, 1996 · N40717 · Emb EMB120RTSDR HEEA967628Nozzle · out of specPART INSTALLED IN TURBINE AND TEST CELL RAN PRODUCED -5.9-4.5-4.5 (NOTE TURBINE PRODUCED -1.1,+0.5+0.5 WITH DALLAS AIRMOTIVE OH #1 NOZZLE) UPON INSPECTION OF PART NOTED THE FOLLOWING: OUT OF OVERHAUL SPECS.A,B,E & F. REPLACED DISCREPANT PART.Aug 2, 1996 · N7136J · Bolkms BO105SSDR HEEA967627Nozzle · crackedENGINE REMOVED DUE TO CARBON 6 & 7 OIL PRESSURE STRUT. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES. REPLACED DISCREPANT PART.Aug 2, 1996 · N9190Y · Bolkms BO105SSDR HEEA967624Nozzle Vanes · crackedTURBINE REMOVED DUE TO 1750 HOUR INSPECTION. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE VANES. REPLACED DISCREPANT PART.Aug 2, 1996 · N7161J · Bolkms BO105S
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