Allison 501-D13 series
Service difficulty reports · 195
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 = '501D13' 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 = '501D13' 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 VGCA20231009001Clamp · brokenRH ENGINE ZONE 1 FIRE INDICATION AND LH ENGINE ZONE 2 FIRE INDICATION. FOUND RH TAILPIPE DISCONNECTED CAUSING RH ZONE 1 FIRE INDICATION. LH ZONE 2 FIRE INDICATION WAS FALSE WARNING CAUSE BY BAD DIODE.SDR VGCA20211119001None · noneDURING TAKE OFF, THE RH ENGINE RPM DROPPED TO 13,400. ENGINE RPM RECOVED WHEN PROP SYNC IS SELECTED OFFSDR VGCA20210606001Spar · corrodedRH WING REAR SPAR UPPER RAIL CORRODED NEAR WS 2 AND WS 3. PERFORMED BLENDOUT IN THIS LOCATION PER ENGINEERING REPAIRSDR VGCA20210606002Skin · gougedGOUGE/DENT IN RIGHT WING LOWER SURFACE SKIN BEWTEEN WS 3 AND WS 4. PERFORMED REPAIR PER ENGINEERING REPAIR DRAWING.SDR VGCA20201125001Fire Loop · shortedZONE 3 (WHEEL WELL) FIRE WARNING ON NR 2 ILLUMINATED AFTER TAKE OFF. SHUT DOWN NR 2 ENGINE, DISCHARGED PRIMARY FIRE BOTTLES AND RETURNED TO KMIA.SDR CA190624019Landing Gear · binding(CAN) GEAR WAS SELECTED UP AND LEFT MAIN GEAR LIGHT REMAINED IN UNSAFE INDICATION. TRIED RECYCLING GEAR SEVERAL TIMES WITH NO LUCK, VISUALLY CONFIRMED GEAR WAS JAMMED IN A PARTIALLY UP POSITION. AIRCRAFT LANDED GEAR UP (TC# 20190624019)SDR CA190521035Bungee · failed(CAN) MAIN GEAR FAILED TO RETRACT AFTER TAKEOFF. OBTAINED SPECIAL FLIGHT PERMIT #192632-5 FLEW AIRCRAFT TO RED DEER ALBERTA FOR MAINTENANCE. FOUND BROKEN BUNGEE ASSEMBLE, FWD DOOR MECHANISM AND REPLACED. DOOR HOOK BROKEN AS WELL DUE TO DOOR CLOSING FIRST AND PSDR VGCA20170919001Engine · overtempLEFT ENGINE INDICATED HIGH TEMPERATURES WHICH COULD NOT BE IMMEDIATELY CONTROLLED BY POWER LEVER, EVENTUALLY TIT INDICATION WERE RETURNED TO NORMAL PARAMETERS. CAUSE STILL UNDER INVESTIGATION.SDR VGCA20161212001Engine · surgesNR 2 ENGINE SURGED UNCONTROLLABLY. PRECAUTIONARY SHUTDOWN.SDR CA150703011Engine · power loss(CAN) UPON COMPLETION OF BOMB RUN (AIRCRAFT WAS PERFORMING FIRE SUPPRESSION ACTIVITIES), CLIMB OUT WAS INITIATED. THE AIRCRAFT PASSED THROUGH AN ERUPTION IN THE FIRE CAUSING THE AIRCRAFT TO YAW CONSIDERABLE TO THE LEFT, BOTH THE NR 1 AND 2 ENGINES OVER TEMP WASDR CA150702007Coupling · failed(CAN) SAFETY COUPLING ASSY. FAILED ON ENGINE START.SDR CA150625003Actuator · malfunctioned(CAN) THE NR 2 ENG LOST POWER ON THE OVERSHOT FROM A BOMB RUN & WAS SHUTDOWN, RETURNED TO BASE. FOUND THE NR 2 PROPELLER ROTARY ACTUATOR TO BE OVER TRAVELLING. REPLACED U S ACTUATOR WITH A SERVICEABLE UNIT & RETURNED THE ACFT TO SERVICE.SDR CA150708009Solenoid · faulty(CAN) BOMB TANK DOOR OPENED (UNCOMMANDED) DURING FLIGHT. MAINTENANCE FOUND AND REPLACED 2 FAULTY HYDRAULIC VALVE SOLENOIDS . CORRODED WIRE CONNECTIONS AT THE NR 3 DOOR SOLENOID WERE ALSO FOUND AND REPAIRED.SDR CA150519026Labyrinth Seal · leaking(CAN) WHILE DEPARTING A FIRE, A LOWER THAN NORMAL OIL QTY ON ENGINE NR 2 WAS INDICATED. A PRECAUTIONARY ENGINE SHUTDOWN WAS CARRIED OUT. MAINTENANCE REPLACED THE NR 2 ENGINE TURBINE DUE TO A SUSPECTED LABYRINTH SEAL LEAK.SDR CA150519030Fitting · cracked(CAN) LOST OIL PRESSURE IN NR 3 ENGINE ON TAXI AFTER LANDING. MAINTENANCE NOTED CRACK AT RGB OIL PRESSURE INLET FITTING, DEFECTIVE ENGINE WAS REMOVED FOR FURTHER INVESTIGATION, SERVICEABLE ENGINE INSTALLED, ACFT RETURNED TO SERVICE.SDR CA150514003Wire · broken(CAN) DURING CLIMB AND CRUISE, THE FLIGHT CREW NOTED THE NR 4 ENGINE OIL QTY WAS LOW, INDICATING TWO GALLONS, A LOSS OF SIX GALLONS. NO SIGN OF FLUID LEAK WAS NOTED BUT A PRECAUTIONARY SHUTDOWN OF THE AFFECTED ENGINE WAS CARRIED OUT. DISCOVERED & REPAIRED A SDR CA150513002Clamp · failed(CAN) IN FLIGHT THE ACFT NR 2 ENG ZONE 1 FIRE WARNING LIGHT ILLUMINATED. THE FLIGHT CREW ACCOMPLISHED THE ENG FIRE DRILL & CHECKLIST PROCEDURES WHICH RESULTED IN A SHUTDOWN OF THE ENG. UPON SHUTDOWN, THE FIRE WARNING LIGHT EXTINGUISHED. THE FLIGHT CREW RETUSDR CA150406006Tube · cracked(CAN) DURING TRAINING FLIGHT, BALKED APPROACH AND AFTER COMPLETING THE CLIMB CHECKLIST, IT WAS NOTED THAT THE HYD FLUID QTY IN HYD SYS 1 WAS VERY LOW. THE SYSTEM WAS SHUTDOWN IAW HYD SYSTEM MALFUNCTION, LOSS OF HYD FLUID CHECKLIST. IMMEDIATE RETURN FOR LANDISDR CA140910006Bearing · unserviceable(CAN) NUMBER 2 ENGINE RGB OIL PRESSURE INDICATION STARTED TO FLUCUATE, FOLLOWED SHORTLY BY, OIL PRESSURE LOW, WARNING LIGHT ILLUMINATING. SHORTLY THERE AFTER THE NR 2 OIL QUANTITY GAUGE WENT TO ZERO. NR 2 ENGINE WAS SHUTDOWN AND DIVERSION MADE TO NEAREST AIRSDR CA140707015Valve · malfunctioned(CAN) ON TAKEOFF LOW HORSEPOWER, HIGH FUEL FLOW, AND HIGH T.I.T. WERE OBSERVED. TAKEOFF WAS ABORTED PRIOR TO BRAKE RELEASE. MAINTENANCE FOUND SPEED SENSE VALVE NOT CLOSING 5TH AND 10TH STAGES. VALVE REPLACED.SDR CA140630026Reduction Gb · making metal(CAN) INCREASED CONSUMPTION OF OIL, LEAD TO INSPECTION OF RGB OIL SCREEN WHERE METAL PARTICLES WERE FOUND. ENGINE REMOVED FROM SERVICE.SDR CA140702010Gasket · leaking(CAN) NR 2 HYD SYS LOST ALL FLUID QTY. ACFT RETURNED TO THE AIRPORT. INSPECTED NR 2 HYDRAULIC SYSTEM, LEAK FOUND AT FILTER HOUSING, LEAKING GASKET FOUND AND REPLACED.SDR CA140613005Tach Generator · malfunctioned(CAN) ON FIRE ACTION, NOTICED THE NR 2 ERPM GAUGE HAD BACKED OFF TO 13200 RPM. TIT, HP, FF AND HERTZ ALL READ NORMAL. THE MEL REQUIRES 4 ENGINE TACHOMETERS FUNCTIONING, ELECTED TO SHUTDOWN ENGINE 2 IAW SOP. SECURED ENGINE, COMPLETED ABNORMAL PREAMBLE AND 1 ESDR CA140613007Pump · failed(CAN) NR 1 HYDRAULIC SYS OVERHEAT LIGHT CAME ON IN FLIGHT COINCIDING WITH FAILED GENERATOR SDR 20140613006.SDR CA140613006Generator · failed(CAN) NR 3 GENERATOR TRIPPED, UNDER-SPEED, TWICE, LT OFF. TEAR DOWN REPORT.SDR CA140423014Oil Cooler · malfunctioned(CAN) AFTER DEPARTURE, NR 2 ENGINE OIL TEMP WAS NOT CONTROLLABLE IN AUTO OR MANUAL MODE. ACFT RETURNED TO POINT OF DEPARTURE. NR 2 OIL TEMPERATURE WAS MAINTAINED IN LIMITS BY USING MINIMUM CRUISE SETTINGS. SYSTEM INSPECTED AND FOUND TO BE WITHIN AMM LIMITSDR CA131104014Hook · damaged(CAN) ON CLIMB OUT, THE CABIN PRESSURE WAS RELEASED OUT THE AFT SERVICE DOOR. THE ACFT DIVERTED TO THE NEAREST MAINTENANCE FACILITY WHERE MAINTENANCE DISCOVERED A DAMAGED DOOR HOOK AND AN UNATTACHED HOOK SPRING. THE HOOK WAS REPLACED AND THE SPRING WAS RE-ATTSDR CA131015004Lever · cracked(CAN) DURING MAINTENANCE INSPECTION THE NLG DOWN LATCH LEVER WAS FOUND CRACKED. THE LEVER WAS REPLACED AND THE ACFT WAS RETURNED TO SERVICE.SDR CA130813004Controller · malfunctioned(CAN) NR 4 ENGINE RPM DECAYED TO BOTTOM OF NORMAL RANGE AT HIGH POWER DURING TAKEOFF, BOMBING BUT WAS NORMAL IN CLIMB AND CRUISE. AFTER TROUBLESHOOTING THE ROTARY ACTUATOR WAS REPLACED AND PROBLEM WAS FIXED.SDR CA130729021Regulator · malfunctioned(CAN) PROPELLER FAILED TO GOVERN RPM IN FLIGHT. UPON ADVANCEMENT OF POWER FOR ASSOCIATED ENGINE FCU HAD TO LIMIT ENGINE RPM VIA FUEL TOPPING GOVERNOR. MAINTENANCE CREW REPLACED GOVERNOR VALVE OF PROPELLER AND COMPLETED A PITCH LOCK CHECK AND DETERMINED PROPESDR CA130515013Fire Detector · malfunctioned(CAN) PILOTS REPORTED A ZONE 1 FIRE INDICATION APPROXIMATELY 20 MILES FROM THE AIRPORT WHILE INBOUND FOR LANDING. AFTER PULLING THE POWER BACK TO IDLE NO CHANGE. THEY E-HANDLED THE ENGINE AND THE INDICATION WENT OUT IMMEDIATELY. ON THE GROUND WE INSPECTED VISDR CA130513023Transfer Tube · misinstalled(CAN) PROPELLER NOT REGULATING OIL PRESSURE IN FLIGHT. RPM WOULD SWING WITH POWER LEVER CHANGES. UPON INVESTIGATION IT WAS DISCOVERED THAT AN O-RING AND BACK-UP RING COMBINATION INSTALLED ON AN INTERNAL TRANSFER TUBE ASSY IN THE PROPELLER HUB WERE REVERSED CASDR CA120917016Engine · power loss(CAN) SECURED NR 1 ENGINE DURING CLIMBOUT. DURING CLIMBOUT, FLIGHT CREW HEARD A, POP/BANG. SCANNED ENGINE INSTRUMENTS AND NOTICED LOSS OF HORSEPOWER AND DECAYING RPM ON NR 1 ENGINE. E-HANDLED NR 1 ENGINE TO SHUTDOWN AND FEATHER PROPELLER. ABORTED THE LOAD SDR CA120813031Fcu · malfunctioned(CAN) WITH ENGINES RUNNING ON GRID IN HIGH PILOT DOWN SHIFTED TO LOW. NR 1 ENGINE EXPERIENCED A LEAN FUEL BLOW OUT. THIS OCCURED TWICE. FCU REPLACED FUNCTION CHECKED. PROBLEM GONE.SDR CA120716012Fuel Control · malfunctioned(CAN) DURING CLIMB-OUT PHASE OF BOMBING RUN, WITH POWER LEVERS ADVANCED. CREW NOTICED HIGH TIT, LOW TORQUE AND ERRATIC RPM ON THE NR 2 ENGINE. AN ENGINE SHUTDOWN WAS EXECUTED AND THE ACFT RETURNED TO BASE. ACFT WAS 3 ENGINE FERRIED BACK TO HOME THE FOLLOWINGSDR CA120712001Solenoid Valve · failed(CAN) WHILE ADVANCING POWER LEVER ON CLIMB OUT ENGINE TORQUE WAS UN-RESPONSIVE. THIS WAS CAUSE BY A FAULTY PROPELLER GOVERNING SYS THAT CAUSED THE ENGINE RPM TO CLIMB UNTIL THE FCU OVERSPEED GOVERNOR SETTING WAS REACHED PRIOR TO THE FINAL POWER LEVER ADVANCEMSDR CA120517001Valve · faulted(CAN) THE AIRCRAFT TAKEOFF, LT PROPELLER ENCOUNTERED AN UNDERSPEED SITUATION. THE ACFT RETURNED TO DEPARTURE. THE AME TROUBLESHOT THE PROBLEM, WE FOUND THE PITCH LOCK VALVE AT FAULT. THE PITCH LOCK VALVE, PN 6506196 WAS REPLACED AND THE ACFT RETURNED TO SERVSDR CA120404003Switch · failed(CAN) THE SNAG WAS REPORTED AS HAD A IN TRANSIT, UNSAFE GEAR LIGHT ON THE NLG AND LT MLG AFTER 45 SECONDS, BUMPED UP GEAR HANDLE UP TO ENSURE POSITIVE SELECTION, THEN WENT TO NEUTRAL, GEAR STAYED UP, WENT TO GEAR DOWN, GEAR CAME DOWN, 3 GREEN RETURNED TO BS TOSDR CA111115010Actuator · damaged(CAN) TANKER 484 HAD AN EXTERNALLY LEAKING RUDDER ACTUATOR. ON DIS-ASSEMBLY IT WAS DISCOVERED THAT THE PLUGS SERVING AS STOPS FOR A CYLINDER DIVIDER ASSEMBLY WERE BROKEN OFF. THIS COLLAR SERVED TO HOUSE O RINGS & SEPARATE HYD PRESSURES FROM SYSTEMS 1 & 2. BSDR CA111115011Cooler · wrong part(CAN) IMPROPER MAINTENANCE PERFORMED ON AIR-COOLER AND FUEL-COOLED, OIL COOLERS INFORMATION RECEIVED DURING A SUSPECTED UNAPPROVED PARTS INVESTIGATION REVEALED.SDR CA110829017Regulator · faulty(CAN) CREW REPORT - 800 DEGREE CHECKS OK, ADVANCED POWER AND STARTED TAKEOFF ROLE. TIT, FF AND POWER NORMAL, HOWEVER RPM INDICATION WAS DECAYING. TAKEOFF ABORTED AND ACFT TAXIED BACK TO BASE. TROUBLESHOOTING FOUND REGULATOR TO BE FAULTY. REGULATOR CHANGED.SDR CA110714001Engine · malfunctioned(CAN) TAXIING TO TANKER BASE AFTER LANDING. ENGINE SHIFT-DOWN WAS SELECTED MOMENTARILY BY AIRCREW, HOWEVER ENGINE SPEED SOLENOID SWITCH WAS NOT GIVEN TIME TO LATCH. ENGINE RPM HAD SPOOLED DOWN TO "LOW" AND THEN IMMEDIATELY SPOOLED BACK UP. AIRCREW NOTICED A SDR CA110602005Pulley · brokenDURING INITIAL TAXI FOR A MX TEST FLIGHT, THE FLIGHT CREW RECEIVED A FLAP ASYMMETRIC WARNING. THE ACFT WAS RETURNED TO THE HANGAR WHERE UPON INITIAL INVESTIGATION IT WAS FOUND THAT THE RT FLAP ASYMMETRIC CABLE LOCATED IN THE RT FLAP BAY WAS BROKEN WITH SIGNS OSDR CA101129006Arm · damagedDURING CLIMB-OUT FROM AIRPORT, THE PILOT REPORTED THAT THE GEAR UNLOCK LIGHT WAS ON AND SUSPECTED THE NLG AT FAULT. THEY COULD SEE DAYLIGHT THROUGH OUT THE VIEWING WINDOW WITH THE RED DOWNLOCK MARKS. AFTER A FEW GEAR UP AND DOWN SELECTIONS WITH NO SUCCESS, TSDR CA100531005Nut · brokenAFTER TAKEOFF FOR A FIRE DISPATCH , THE NR 1 FIRE LIGHT AND BELL SOUNDED. THE LIGHT AND BELL QUIT AFTER THE POWER WAS REDUCED FROM TAKEOFF POWER. AFTER LANDING , MX FOUND THAT THE POWER TURBINE ON THE NR 1 ENGINE HAD FAILED. THE NEXT DAY THE ACFT WAS FLOWN OSDR CA091118005Compressor · damaged(CAN) ON START UP, ENG NR 2 IN HIGH SPEED WITH ALL THE PARAMETERS STABILIZED, WHEN CLEARED TO START NR 1 ENG, A LOUD BANG WAS HEARD FOLLOWED BY ENG FIRE WARNING AND BELLS IN ZONE NR 2. FLAMES COMING OUT OF ENG COWLS, FIRE ON GROUND DRILL EXECUTED, FIRE WENT OUSDR VGCA20090928Fuel Control · malfunctionedFLAMEOUT OF NR 2 ENGINE DUE TO MECHANICAL MALFUNCTION OF FUEL SHUTOFF IN FUEL CONTROL.SDR CA090904012Engine · making metalON CHECKING ENG OILS MX NOTICED NR 3 ENG TOOK MORE OIL THAN NORMAL, THEY NOTICE OIL COMING SCAVAGE PUMP DRAIN LINE. GEAR BOX FILTER CHECKED AND ABNORMAL METAL FILINGS WERE FOUND. ACFT WAS 3 ENG FERRIED TO MX FACILITY.SDR CA090824011Brush Block · wornON RETURN NR4 ENG RPM DROOPED TO 13,600. WHILE REVIEWING CHECKLIST FOR POSSIBLE ENG SHUTDOWN, ENG DROOPED TO 13,450 AND BEGAN TO HAVE HORSEPOWER SURGES. ENG WAS SHUTDOWN AND SECURED. IAW SOP’S (PROP GOVERNOR WAS CHANGED AND ACFT GROUND RUN AND RETURNED TO SERSDR VGC2009F00001Spar · corrodedCORROSION OF LT HORIZ STABILIZER REAR SPAR. (K)
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