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 95ZZZY0759Bearing · faultyTHIS BEARING IS AFFECTED BY SB LT101-72-10-0151. ALLIED SIGNAL PARTS FACILITY FAILED TO ISOLATE AND DISCARD THIS BEARING. SUBSQUENTLY, ALLIED SIGNAL SHIPPED THE BEARING TO RMH. ALLIEDSIGNAL ADVISED RMH OF ERROR. THE AIRCRAFT WAS GROUNDED AND THE ENGINE REMApr 26, 1995 · N7059N · Bolkms BK117B1SDR HEEA954892Wheel · sulfidationENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: EXCESSIVE SULFIDATION AND DELAMINATION ON ALL 1ST STAGE WHEEL BLADES CAUSING 10 EACH BLADE TIP FAILURES .062" CHORDALLY PROGRESSING .062"ACROSS TRAILING EDGE MAXIMUApr 25, 1995 · Skrsky S76ASDR 95ZZZX5375Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 11, PLUS 0.014 INCH. PART TOTAL CYCLES 1304.9.Apr 25, 1995 · N71703 · Bolkms BK117B1SDR 95ZZZX5308Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Apr 25, 1995 · N71703 · Bolkms BK117B1SDR 95ZZZX5374Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 15, PLUS 0.013 INCH. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. PART TOTAL CYCLES, 3477.8.Apr 20, 1995 · N527SF · Bolkms BK117A3SDR 95ZZZX5281Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Apr 20, 1995 · N527SF · Bolkms BK117A3SDR PLGA414951Blades · failedFLT 4864 - BOS-BDL - EXPERIENCED AN ENGINE FAILURE DURING TAKEOFF ROLL. AS POWER APPROACHED 80 PERCENT TORQUE, ITT ROSE TO 920 DEGREES CELSIUS AND 4TH STAGE TURBINE BLADES SEPARATED FROM THE TURBINE WHEEL. THE TAKEOFF WAS ABORTED WITHOUT INCIDENT. MAINTENANApr 14, 1995 · N744BA · Saab SF340ASDR 95ZZZX3744Bearing · failedNR 5 BEARING BALL RETAINER FLAKING OFF. THE BEARING MANUFACTURED BY SUPERIOR TURBINE.Apr 14, 1995 · N105SJ · Bolkms BO105CSDR PLGA413951Sungear · shearedPVD - ON TAKEOFF ROLL, THE LT ENGINE EXPERIENCED A LOSS OF POWER AND OIL PRESSURE. THE TAKEOFF WAS ABORTED, ENGINE WAS SHUTDOWN AND ACFT RETURNED TO GATE. INITIAL ON SITE INVESTIGATION REVEALED LOSS OF POWER TURBINE BLADES, PUNCTURED EXHAUST DUCTS AND DEBRISApr 13, 1995 · N810BE · Beech 1900CSDR WTAA950167Pt Disk · failedSFO - NOISE AND VIBRATION REPORTED FROM RT ENGINE WITH POWER LEVER IN GROUND IDLE. MAINTENANCE REMOVED AND REPLACED RT ENGINE ASSY. AIRCRAFT RETURNED TO SERVICE. SUBSEQUENT INVESTIGATION REVEALED PT-1 DISK BLADE FAILURE TO BE CAUSE OF ENGINE NOISE AND VIBRAApr 11, 1995 · N280UE · Emb EMB120RTSDR 95ZZZX3041Bearing · spalledTHE METAL OBSERVED IN THE POWER SECTION WAS BEING GENERATED BY THE NR 4 BEARING. THE CAUSE OF THE NR 4 BEARING SPALLING IS UNDER INVESTIGATION BY PRATT AND WHITNEY CANADA.Apr 11, 1995 · N154ZV · Beech 1900DSDR CAL950266T1 Blade · failedNAS - FLT 1901 - A LOUD BANG WAS HEARD AND THE NR 2 ENGINE EPR DROPPED TO ZERO WHILE CLIMBING THROUGH 1,100 FEET. FUEL WAS DUMPED AND ACFT RETURNED TO NAS WHERE IT LANDED WITHOUT INCIDENT. NR 2 ENGINE WILL BE REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FApr 10, 1995 · N88770 · Boeing 727227SDR 95ZZZX3046Seal Ring · excess gapPARTS RECEIVED FROM PRATT AND WHITNEY AND WERE FOUND TO HAVE AN EXCESSIVE GAP 1,000.Apr 10, 1995SDR 95ZZZW587Lugs · wornRIGHT ENGINE RUBBING NOISE COMING FROM POWER SECTION AFTER SHUTDOWN AND THEN DISAPPEARS UPON COMPLETE COOL DOWN OF ENGINE. INVESTIGATION REVEALED THAT ANTI-ROTATION LUGS WERE WORN APPROXIMATELY .060. UNIT WAS NOT MODIFIED BY S/B 14206.Apr 10, 1995 · N833CA · Beech 1900DSDR 95ZZZX2254Nutplate · mismfgPURCHASED NUTPLATE ASSY IDENTIFIED AS PN 50H069, WAS ONE OFFSET NUT WITH RELATION TO THE OTHERS. THIS CONFIGURATION IS CONSISTANT WITH PN 50H067. APPEARS NUTPLATE ASSY HAS BEEN MISIDENTIFIED.Apr 7, 1995SDR 95ZZZX2586Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. NR 10 PLUS 0.011 INCH. REPLACED. PART TOTAL CYCLES 1098.1.Apr 5, 1995 · N10UM · Bolkms BK117B1SDR 95ZZZX2585Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. NR 12 -0.009 INCH, NR 17 -0.014 INCH. REPLACED WITH NEW UNIT. CORRECTED PROBLEM. PART TOTAL CYCLES 3109.6.Apr 5, 1995 · N10UM · Bolkms BK117B1SDR 95ZZZX1992Seal · crackedDURING CAM INSPECTION, FOUND SEAL CRACKED 3 PLACES. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED PRESSURE AGAINST 1ST STAGE ROTOR. THIS INCREASED PRESSURE RESULTS IN CRACKING OF THE SEAL EDGE DIAMETER. SUGGEST ALLIED SIGNAL ENGINEERIApr 5, 1995SDR HEEA954671N1 Coupling · stepwearENGINE REMOVED DUE TO CYCLED 1ST AND 2ND STAGE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: FWD AND AFT SPLINE STEP WEAR BEYOND LIMITS ON N1 COUPLING. INSTALLED NEW COUPLING.Apr 4, 1995 · N3122H · Skrsky S76ASDR 95ZZZX2445Seal · crackedDURING INSPECTION FOR LOW POWER, FOUND PART CRACKED 12 PLACES UP TO APPROXIMATELY .5 INCH. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST FIRST STAGE ROTOR. THIS INCREASED TENSION RESULTS IN CRACKING AT THE SEApr 4, 1995SDR WTAA950150Turbine Blade · failedRNO - VIBRATION AND POWER LOSS REPORTED FROM LEFT ENGINE WHEN PROPELLER WAS BROUGHT OUT OF FEATHER AFTER LANDING. MAINTENANCE REMOVED AND REPLACED LT ENGINE ASSEMBLY. AIRCRAFT RETURNED TO SERVICE. SUBSEQUENT INVESTIGATION REVEALED PT-1 DISK BLADE FAILURE TOApr 3, 1995 · N274UE · Emb EMB120RTSDR CA960612048Blade · fractured(CAN)ROUTINE BORESCOPE INSPECTION FOUND 1 FRACTURED LOW PRESSURE TURBINE BLADE. MICRO ANALYSIS OF FAILED BLADE SHOWED PARTIAL GAMMA PRIME SOLUTIONING, INDICATIVE OF TEMPERATURE EXPOSURE GREATER THAN 2000F.LP STATOR ASSEMBLY HAD SEVERAL VANES BUCKLED AT THE 6 OApr 1, 1995 · Dhav DHC8101SDR 95ZZZX5298Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 28, 1995 · N5194C · Bolkms BK117B1SDR 95ZZZX5296Seal Ring · wornFIRST TURBINE SHROUD SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNIT(S CORRECTED PROBLEM.Mar 28, 1995 · N5194C · Bolkms BK117B1SDR 95ZZZX1842Vane Ring · dentedTHE VANE RING RECEIVED FROM THE PARTS ROOM AND FOUND DENTED AT THE OUTBOARD EXIT FLANGE.Mar 27, 1995SDR RMXA95205531st Nozzle · defectiveDIAPHRAM IMPROPERLY INSTALLED, BOLT HOLES WOULD NOT LINE UP.Mar 26, 1995SDR CAL950231Disk · decoupledFLT NR 960 - NRT - THE NR 2 ENGINE FIRE WARNING ACTIVATED ACCOMPANIED BY ENGINE POWER LOSS DURING TAKEOFF AT 40 KNOTS. THE TAKEOFF WAS ABORTED AND THE ENGINE FIRE/FAILURE CHECKLIST WAS COMPLETED. THE A/C WAS RETURNED TO THE GATE. MX FOUND THE NR 2 ENGINE TURMar 24, 1995 · N68046 · Doug DC1010SDR 95ZZZX5498Bearing · wornNR 3 BEARING, EXCESSIVE ROLLER WEAR. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 24, 1995 · N911VU · Bolkms BK117B1SDR 95ZZZX5497Bearing · pittedBEARING OUTER RACE HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 24, 1995 · N911VU · Bolkms BK117B1SDR 95ZZZX5311Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 24, 1995 · N911VU · Bolkms BK117B1SDR 95ZZZX1831Bearing · noisyDURING THE BALANCE PROCEDURE OF THE PT SHAFT, THE NR 4 BEARING WAS MAKING A CHATTERING NOISE. THIS BEARING WAS FROM THE PT6 OVERHAUL KIT PURCHASED FROM PWC.Mar 23, 1995SDR HEEA954563Wheel · sulfidationENGINE REMOVED DUE TO CYCLED 1ST THROUGH 4TH STAGE WHEELS. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MILD SULFIDATION ON 50% OF TURBINE 1ST STAGE WHEELS BLADES. SCRAPPED 1ST STAGE WHEEL.Mar 22, 1995 · N2271V · Bell 206BSDR CAL950213Blade · failedMIA - FLT 0292 - A LOUD BANG WAS HEARD AND THE NR 1 ENGINE SPOOLED DOWN DURING A CLIMB OUT OF MIA AT 18,000 FEET. THE AIRCRAFT WAS RETURNED TO MIA WHERE IT LANDED WITHOUT INCIDENT. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART Mar 18, 1995 · N809NY · Doug DC982SDR 95ZZZX5304Seal · leakingNR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 17, 1995 · N7060G · Bolkms BK117B1SDR 95ZZZX2581Rotor Assy · blade shiftROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 1 -0.022 INCH. REPLACED WITH NEW UNIT. CORRECTED PROBLEM. PART TOTAL CYCLES, 2377.4Mar 17, 1995 · N7060G · Bolkms BK117B1SDR 95ZZZX1993Wheel · bogus partTHIS WHEEL WAS FOUND IN A COMMERICAL ENGINE. THE PART NUMBER IS NOT RECOGNIZED BY GENERAL ELECTRIC.Mar 17, 1995SDR 95ZZZX1847Blade · bowedSTAGE 1 TURBINE BLADES ARE BOWED OUT OF LIMITS. TIME ON THE BLADES IS UNKNOWN. THE BLADES ARE MARKED WITH 'BK' WHICH SHOULD IDENTIFY THE PART NUMBER. HOWEVER, 'BK' IS NOT RECOGNIZED BY GENERAL ELECTRIC.Mar 17, 1995SDR HEEA954545Wheel · sulfidationENGINE REMOVED DUE TO 1750 HOUR INSPECTION AND TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL.Mar 16, 1995 · N54197 · Bolkms BO105SSDR 95ZZZX2156Bearing · failedNR 5 BEARING FAILED AT THE BALLS RETAINER. CHIP LIGHT CAME ON IN-FLIGHT. NO CAUSE AT THE TIME. THIS PART IS A P.M.A. F.A.A. APPROVED.Mar 15, 1995 · N114HA · Hiller UH12ESDR 96ZZZX506Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 7,314.4.Mar 12, 1995 · N424MB · Bolkms BK117A3SDR 95ZZZX5561Rotary Assy · disc damageDISC HAS EXCESSIVE DAMAGE (WARPED CAUSING LOOSE BLADES) RESULTING FROM LAB SEAL ELEMENT RUBBING INTO DISC KNIFE EDGES. THIS LAB SEAL HAS FEWER WELD POINTS AS COMPARED TO THE MORE RECENT SEAL DESIGN. THE LAB SEAL WAS INSTALLED NEW AS A PART OF SB 126 UPGRADE. Mar 12, 1995 · N424MB · Bolkms BK117A3SDR 95ZZZX5378Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 7, PLUS 0.008 INCH, NR 10, PLUS 0.008 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES 4406.5.Mar 12, 1995 · N424MB · Bolkms BK117A3SDR 95ZZZX5496Bearing · spalledNR 6 MAIN BEARING SPALLING. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.Mar 10, 1995 · N911BH · Bolkms BO105CBSSDR ERAA9528Nozzle · crackedTWO ADJACENT CRACKS (AS MARKED) IN VANE 1/4" (6MM) REF PAGE 3-282 TABLE 111-13 ITEM 1 RETURNING NOZZLEMar 9, 1995 · N131EH · Bolkms BO105SSDR 95ZZZX1484Seal · crackedDURING HOT SECTION INSPECTION, FOUND PART CRACKED. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST FIRST ROTOR ASSY. SUBMITTER BELIEVES THIS INCREASED TENSION IS CAUSING THIS PART TO CRACK. SUGGEST ALLIED SIGNMar 7, 1995SDR 95ZZZX1483Seal · crackedDURING HOT SECTION INSPECTION, FOUND PART CRACKED. SB 72-0840 AUTHORIZES INSTALLATION OF EITHER PN 3103315-05 OR PN 31070825-2 TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST FIRST ROTOR ASSY. THIS PARTICULAR PART WAS MODIFIED TO PN 3107085-2 BY INCORPORATINMar 7, 1995SDR ERAA9527Nozzle Vane · cracked1ST STAGE NOZZLE TRAILING EDGE VANES CRACKED.Mar 3, 1995 · N132EH · Bolkms BO105SSDR 95ZZZX5376Rotor Assy · blade shiftFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 7, PLUS 0.011 INCH, NR 12, PLUS 0.018 INCH, NR 17, PLUS 0.010 INCH, NR 18, PLUS 0.010 INCH. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM. PART TOTAL CYCLES, 5811.3.Feb 28, 1995 · N420MB · Bolkms BK117A3SDR 95ZZZX5266Seal Ring · wornFIRST TURBINE SEALS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW 2 EACH UNITS(S) CORRECTED PROBLEM.Feb 28, 1995 · N420MB · Bolkms BK117A3SDR HEEA954406Nozzle · defectiveENGINE REMOVED DUE TO N2 DRAG. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: LIFTING AND FLAKING PLASMA IN 4TH STAGE NOZZLE #4 TIP PATH. INSTALLED SERVICEABLE 4TH STAGE NOZZLE.Feb 23, 1995 · N6160Z · Bell 206L3
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