Allison 250-C47B
Service difficulty reports · 1,403
Newest first. General aviation reporting is voluntary.
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 engine_model_key = '250C47B' 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 engine_model_key = '250C47B' 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 ZESA2010002Combustion Liner · crackedON 08/28/2009, TURBINE ASSY PN 23063354 SN CAT-44643 WAS REMOVED FOR O/H AND LIFE LIMIT ON THE WHEELS AND A LOANER WAS INSTALLED WITH A REPAIRED COMBUSTION LINER. ON FEB 25, 2010 UPON INSTALLATION OF THE ORIGINAL O/H TURBINE ASSY, IT WAS FOUND THAT THE REPAIRSDR ALGA2191045003Mount · crackedFOUND EXCESSIVE CRACKING ON AFT FLANGE OF REAR COMPRESSOR MOUNT.SDR 2010FA0000171Support · damagedON 1/17/2010, THE PILOT, FLIGHT CREW, AND BASE MECHANIC REPORTED AN UNUSUAL NOISE COMING FROM THE ACFT/ENG. AFTER FLIGHT CKS, GROUND RUNS, AND TROUBLESHOOTIING OF THE ENG AND COMPONENTS, A DECISION WAS MADE TO REMOVE THE ENG FOR INSP AND REPAIR. ON 1/2/2010,SDR CA100209011Retaining Ring · cracked(CAN) ENG PRODUCED A CHIP LIGHT DURING OPERATION AND METALLIC DEBRIS OF SIGNIFICANT SIZE WAS FOUND ON THE LOWER GEARBOX CHIP PLUG DURING LINE MX INVESTIGATION. ENG WAS SUBSEQUENTLY REMOVED FROM SERVICE. ON DISMANTLE TO INVESTIGATE CONDITION OF THE FOLLOWING SDR 2010FA0000134Tank · leakingDURING MX TEST FLIGHT AFTER ENGINE INSTALLATION AN EXCEEDANCE OF 150 PSI ENGINE OIL PRESSURE OCCURS FOLLOWED BY A LOSS OF OIL PRESSURE. AN EMERGENCY LANDING PERFORMED FOLLOWED BY ENGINE SHUTDOWN.SDR HEEA127166Garlock Seal · unsecureLANDED ACFT ON PLATFORM AND PASSENGER NOTICED OIL LEAK. TRANSMISSION LOW PRESSURE CAUTION LIGHT ILLUMINATED DURING ROUTINE 2 MINUTE ENG COOL DOWN. PILOT IMMEDIATELY SHUTDOWN ENGINE. PILOT REPORTS OIL ON ENG DECK. TRANSMISSION LOST OIL PRESSURE DURING COOL SDR ALGA0100410847285Mount · crackedFOUND 3 EA CRACKS ON FWD FLANGE. CRACKS GO THROUGH BOLT HOLES AND AROUND BOLT HOLES.SDR ALGA010410847257Mount · crackedFOUND 2 EA CRACKS THROUGH BOLT HOLES ON FWD FLANGE OF ENGINE COMPRESSOR MOUNT.SDR CA091210001Spring · fractured(CAN) FOUND DURING S CHECK (ONE SPRING FRACTURE SEEN THROUGH FRAHM SIDE HOLES, SECOND FOUND AFTER SPRING REMOVAL FROM FRAHM).SDR CA091210002Spring · fractured(CAN) FOUND AS CLOSER INSP WAS DONE ON FRAHM UNIT AFTER BROKEN SPRING FINDINGS ON OTHER COMPANY ACFT.SDR CA091207006Latch · worn(CAN) INTAKE COWL LT INSP DOOR LATCH PN 90-015-032-235 HEAVILY WORN AT STRIKER WITH FWD FIREWALL. FWD FIREWALL PN UNK ALSO EXIBITS WEAR.SDR CA091203001Friction Ring · damaged(CAN) DURING ANNUAL INSPECTION/UNSCHEDULED ENGINE CHANGE, STARTER/GENERATOR WAS REMOVED & INSPECTED BEFORE TRANSFER TO REPLACEMENT ENGINE. AME NOTICED FRICTION RING SPLIT & PROTRUDING FROM SHAFT PLATE. STARTER GENERATOR SENT TO LOCAL REPAIR FACILITY FOR REPASDR ALGA111309847230Fireshield · mismanufacturedCOULD NOT FIT VERTICAL FIRESHIELD ON ENG GEARBOX. ALL FIRESHIELD MOUNT PADS WELDED OFF CENTER.SDR ALGA111309947521Fireshield · mismanufacturedCOULD NOT FIT VERTICAL FIRESHIELD ON ENG GEARBOX. ALL FIRESHIELD MOUNT PADS WELDED OFF CENTER.SDR CA091113004Seal · leaking(CAN) DURING A NIGHT FLIGHT, PILOT NOTICED DECREASE IN TRANSMISSION OIL PRESSURE. ON LANDING (STILL HAD SOME PRESSURE INDICATION) FOUND OIL ALL OVER THE ENG COMPARTMENT AND THAT THE AFT FREEWHEEL ADAPTER SEAL PN: 209-340-265-103 HAD COME OUT OF THE AFT ADAPTESDR 2009FA0000892Bearing · separatedACFT ARRIVED AT HANGAR. PILOT NOTE: THE MAIN ROTOR HAD A VIBRATION. MX INSP MAIN ROTOR AND FOUND SHEAR BEARING HAD BECOME SEPARATED FROM SPINDLE THAT IT WAS BONDED TO. (K)SDR CA090928004Spring · broken(CAN) DURING INSPECTION FOUND SPRING BROKEN. (TC# 20090928004)SDR ALGA9110944443Fireshield · misalignedALL MOUNT PADS ON FIRESHIELD HAD RAISED SHEETMETAL FROM IMPROPER FIT.SDR CA090914011Oil Tank · cracked(CAN) OIL WAS FOUND IN THE ENGINE OIL COOLER REGION. THERE WAS A LOSS OF ENGINE OIL. THE OIL WAS ORIGINATING FROM A CRACK OF THE ENGINE OIL TANK P/N 206061505115. THE CRACK WAS LOCATED NEAR THE RIGHT FRONT SUPPORT LEG. (TC# 20090914011)SDR ALGA145920944377Fireshield · misalignedUNABLE TO FIT SHIELD TO GEARBOX, 6 PADS OFF CENTER TO FIRESHIELD.SDR ALGA1458240994714Cover · improper partHMU PAD STUDS TOO SHORT UPON ENGINE BUILD.SDR ULXR2009080683133Hmu · failedFAILED FADEC AUTO TO MANUAL CHECK.SDR CA090716007Blade · delaminated(CAN) HELICOPTER M/R VIBRATIONS INCREASED RAPIDLY OVER A FEW DAYS. M/R WAS TRACKED AND BALANCED TO WITHIN LIMITS. WITHIN 2 DAYS, VIBRATIONS LEVELS HAD INCREASED BEYOND LIMITS AGAIN. FURTHER INSP REVEALED BLADE DELAMINATION SUSPECTED TO BE ABOVE LIMITS ON THESDR CA090716008Blade · delaminated(CAN) HELICOPTER M/R VIBRATIONS INCREASED RAPIDLY OVER A FEW DAYS. M/R WAS TRACKED AND BALANCED TO WITHIN LIMITS. WITHIN 2 DAYS, VIBRATIONS LEVELS HAD INCREASED BEYOND LIMITS AGAIN. FURTHER INSP REVEALED BLADE DELAMINATION SUSPECTED TO BE ABOVE LIMITS ON THESDR CA091002003Igniter Box · failed(CAN) ACFT WOULD NOT START. PILOT NOTED IGNITOR NOT FIRING. TROUBLESHOT TO FAULTY IGNITION EXCITOR BOX. REPLACED WITH SERVICEABLE UNIT.SDR ALGA061409437ALLongeron · crackedDURING ROUTINE INSP, TAILBOOM RING (FUSELAGE SIDE), SHEAR DECK/ WEB, AND LONGERON FOUND CRACKED.SDR 2009FA0000563Shaft · crackedTHE ENGINE WAS DISASSEMBLED TO FACILATE INSP BECAUSE OF METAL IN THE OIL. UPON VISUAL INSP, A CRACK WAS DISCOVERED ORGINATING AT THE CURVIC COUPLING END OF THE SHAFT. THE CRACK MEASURED APPROX 4.5 INCHES AND EXTENDED APPROX 270 DEGREES AROUND THE SHAFT.SDR 2009FA0000564Shaft · crackedTHE ENGINE WAS DISASSEMBLED BECAUSE OF A REPORTED VIBRATION. A CRACK WAS DISCOVERED THAT ORGINATED FROM THE CURVIC COUPLING END OF THE SHAFT, MEASURING APPROX 5.5 INCHES AND EXTENDING APPROX 300 DEGREES AROUND THE SHAFT. REPAIR STATIONW/O A105779. ENGINE TOTSDR CA091002002Turbine · damaged(CAN) TURBINE RUB NOISE REPORTED ON SHUTDOWN. RECOMENDED REMOVING THE TURBINE AND SENDING OUT FOR INSP. TURBINE WAS REPAIRED FOR N1 RUB.SDR CA090608007Sleeve · dislodged(CAN) WHILE GREASING THE T/R GEARBOX PITCH CHANGE ASSEMBLY IT WAS NOTED THAT THE BOOT P/N 406-312-106-101 WAS BEING PRESSURIZED BY THE GREASING. REMOVED THE T/R GEARBOX PITCH CHANGE ASSEMBLY AS PER BELL MM. THE ASSEMBLY WAS DISASSEMBLED. IT WAS FOUND THAT THE SDR CA090605004Support Angle · crackedWHILE CARRYING OUT A DAILY CHECK IT WAS NOTED THAT MAYBE A CRACK HAD DEVELOPED ON THE FWD ANGLE OF THE TAILBOOM/HORIZ UPPER LT ANGLE SUPPORT. FURTHER INVESTIGATION LEAD TO, IT IS CRACKED. ACFT GROUNDED FOR REPAIRS ADVISED MFG PRODUCT SUPPORT OF THE OCCURANCE.SDR CA090505006Blade · separated(CAN) PILOT DURING HIS PREFLIGHT NOTICED SEPARATION IN THE TAIL ROTOR BLADE TIP WEIGHT AREA,SDR CA090401001Bearing · migrated(CAN) THE BEARING (406-310-403-101) MIGRATED OUT OF IT`S PARENT PART (406-010-432-101) ANTI-DRIVE LINK ASSY.SDR CA090406005Drive Shaft · worn(CAN) ON DAILY VISUAL INSP OF ACFT, THE NR1 T/R DRIVE BEARING HANGER WAS FOUND TO BE OVERHEATED WITH SIGNS OF BLUE DISCOLORATION. THE ACFT WAS THEN REMOVED FROM SERVICE, ON INSP THE NR1 AND NR2 BEARINGS WERE FOUND TO BE OVERHEATED AND THE ROOT CAUSE WAS FOUND SDR CA090320003Control Cable · broken(CAN) PILOT LANDED AFTER DROPPING PASSENGERS ON SKI RUN. THROTTLE TWIST GRIP DID NOT RESPOND WHEN ROLLED TO IDLE SETTING PRIOR TO ENGINE SHUTDOWN. ACFT WAS FLOWN BACK TO BASE AND ENGINE SHUTDOWN AT HMU INPUT LEVER MANUALLY BY AME. THROTTLE CABLE FOUND BROKEN USDR CA090506007Tube · failed(CAN) RECEIVED TAIL ROTOR GEARBOX FOR A 60 MONTH INSP WITH PITCH CHANGE MECHANISM ATTACHED. WHEN PITCH MECHANISM WAS REMOVED, NOTICED A RAISED SLIVER OF MATERIAL THE ENTIRE DIAMETER OF THE PITCH TUBE IN THE AREA OF THE BRG SLEEVE AND PITCH TUBE BRG SHOULDER. TSDR CA090407007Hmu · leaking(CAN) EN-ROUTE, DURING THE LAST FUEL STOP, A FUEL LEAK WAS OBSERVED, LEAK WAS COMING FROM THE HMU.SDR CA090205007Release Cable · frayedDURING INSPECTION CABLE TOP END OF MANUAL RELEASE CABLE WAS FOUND TO BE FRAYED AND PULLED OUT OF THE SWAGED END. SDR WAS SUMITTED DEC 09 2008 FOR A SIMILAR DEFECT BUT ON THE BOTTOM END OF CABLE, THAT CASE RESULTED IN A UN-COMMANDED RELEASE OF THE HOOK, BOTH CSDR CA090120005Support Angle · cracked(CAN) SUPPORT ANGLE P/N 407-023-800-127 FOUND CRACKED ON A DAILY INSP. PART HAS BEEN UPGRADED BY A -129 THAT WAS INSTALLED. THIS IS KNOWN TO MFG AND THEY HAVE COME OUT WITH THE -129 THAT IS THINNER MATERIAL AND HAS MORE FLEXABILITY.SDR HEEA123017Hmu · malfunctionedAIRCRAFT YAWED LEFT SUDDENLY FOLLOWED IMMEDIATELY BY DECREASE IN ENGINE NOISE, LOSS IN ALTITUDE, ACTIVATION OF LOW RPM AUDIO AND FADEC FAIL AUDIO. CAUTION LIGHTS THAT ILLUMINATED WERE FADEC FAIL, FADEC DEGRADED, RESTART FAULT, AUTO RELIGHT AND RPM, FADEC MODESDR CA081028003Bevel Gear · damaged(CAN) TRANSMISSION CHIP LIGHT ILLUMINATED. MECHANIC FOUND SMALL DEBRIS ON THE LWR CHIP PLUG. UPON INSP BY THE OVERAUL SHOP, THEY DISCOVERED THE BEVEL GEAR DAMAGED. A SMALL PIECE OF GEAR TOOTH APPROX. .360X.073 HAD BROKEN OFF THE GEAR ASSY AND DISCOVERED THE BESDR CA080820002Release Mech · malfunctioned(CAN) HELI BASKET D407-663-011 INSTALLED IAW INSTRUCTIONS. DURING TRAINING (SLING OPERATION) MANUAL RELEASE WAS USED AND FUNCTIONED AS NORMAL DURING THE TRAINING SEQUENCE. ON THE NEXT PICK UP, THE LOAD WAS HOOKED UP ON THE HOOK AND THE PILOT PULLED INTO AN HOVSDR CA080805003Skin · cracked(CAN) CRACK FOUND BETWEEN THE TAIL ROTOR SUPPORT AND TAILBOOM AT FUSELAGE STA 375 APPROX. ALSO SEVERAL RIVETS WERE FOUND SMOKING. THE HELICOPTER WAS USED TO MOVE DRILL ON A REGULAR BASIS WITHOUT EXCEEDING THE LOAD CAPACITY. TAILBOOM REMOVED P/N407-530-014-101 SDR CA080910005Disc Pack · cracked(CAN) FOUND (3) DISCS CRACKED AND ALL DISCS CORRODED ON THE FWD NR 1 POSITION.SDR CA080707006Shaft · corroded(CAN) WHILE REMOVING THE TAIL ROTOR FROM THE ACFT, THE ENGINEER PERFORMING THE WORK NOTED THAT SEPARATING THE HUB FROM THE OUTPUT DRIVE SHAFT WAS SUBSTATIALLY MORE DIFFICULT THAN NORMAL. ONCE THE TAIL ROTOR WAS REMOVED IT WAS NOTED THAT THE INCORRECT TYPE OF LSDR 2008FA0000441Bearing · failedPILOT REPORTED ENGINE CHIP LIGHT PRECAUTIONARY LANDING MADE TO INVESTIGATE. A CONSIDERABLE AMOUNT OF FERROUS MATERIAL WAS ON THE TOP AND BOTTOM CHIP DETECTORS. NO PENALTY RUNS WERE PERFORMED. AIRCRAFT WAS PLACED ONTO A TRAILER AND MOVED BACK TO BASE WHERE THESDR 2008FA0000338Spring · damagedONE OF EIGHT SPRINGS BROKEN CAUSING DAMAGE TO LOWER HOUSING. LOWER HOUSING, SPRINGS 2 EA. AND PLUGS WERE REPLACED. UNKNOWN WHI SPRING BROKE, SPRING WAS FOUND BROKEN ON SCHEDULED 300 HOUR INSPECTION. (K)SDR 408UT051308Heater · fumesFUMES AND SMOKE IN THE COCKPIT, DURING FLIGHT, RESULTING IN A UNSCHEDULED LANDING.SDR HEEA119671Engine · malfunctionedLOST ENGINE OIL PRESSURE, ENGINE TORQUE, AND THE ENGINE CHIP LIGHT ILLUMINATED.SDR CA080411006Turbine · damagedON THE THIRD MAIN ROTOR STROBING FLIGHT OF THE MORNING AND WHILE ACCELERATING FROM 100KTS TO 120KTS, A LOW HOWLING NOISE WAS HEARD WHICH INTENSIFIED RAPIDLY AND WAS FOLLOWED IMMEDIATELY BY AN ENGINE CHIP LIGHT. A FORCED LANDING WAS MADE TO A FIELD. AN EXTERN
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