JASC 4900
Service difficulty reports · 1,840
Reports filed under 4900 · Airborne Auxiliary Power Unit (APU) System, 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 = '4900' 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 = '4900' 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 GTIA030386Apu · leakingABOUT 2 MIN AFTER SELECTING AIRFOIL ANTI-ICE A BURNING ODOR ENTERED THE CABIN AND WAS DETECTABLE IN THE COCKPIT. SMELL WENT AWAY WHEN AIRFOIL ANTI-ICE WAS TURNED OFF. ODOR WAS APPARENT ALSO WHEN TAIL DE-ICE WAS SELECTED. REMOVED AND REPLACED APU. OPS AND LSDR CALA0300266Apu · shutdownTHE APU AUTO SHUTDOWN ON TWO START ATTEMPTS AT FL 35. APU START WAS SUCCESSFUL AT FL 15. THE APU ASSEMBLY WAS REMOVED AND REPLACED IAW MM 49-11-01. LEAK AND OPERATIONAL CHECKS WERE GOOD.SDR MALA030251Apu · shutdownDURING CLIMBOUT OF FLIGHT 3567, APU AUTOSHUTDOWN. APU AUTOSHUTDOWN DURING CLIMB THRU 24000 FT. NO RESTART ATTEMPTED. MAINTENANCE GROUND RAN 45 MINUTES, UNABLE TO DUPLICATE.SDR AMTA200300563Apu · malfunctionedAPU WOULD NOT START, 3 ATTEMPTS, RPM UP TO 15 PERCENT. PERFORMED APU BITE IAW MM 39-61-05. NO FAULTS DISPLAYED STARTED APU IAW MM 49-11-00. OPS CHECK NORMAL. (M)SDR AMTA200300545Apu · malfunctionedAPU WOULD NOT START, 3 ATTEMPTS RPM GOT UP TO 14 PERCENT. PERFORMED APU BITE, NO DEFECTS NOTED IAW FIM 49-11-00-2. OPERATIONAL CHECK 3 TIMES NORMAL PER MM 49-11-00-802. OK FOR SERVICE. (M)SDR A6WA200340053Apu · fireAFTER APU SHUTDOWN FIRE WAS NOTED IN THE INTAKE. AGENTS USED HALON/DRY CHEMICAL TO EXTINGUISH. REMOVED AND REPLACED THE APU, SUSPECT CAUSE AS EITHER THE LOAD CONTROL VALVE OR THE FUEL SHUTOFF VALVE. (M)SDR USAABB03057Packing · leakingEN ROUTE PHL-PHX, WITH THE LFT GENERATOR ON MEL AND APU OPERATING, THE CREW NOTED A DECREASE IN THE APU OIL FROM 'FULL' TO .'50' TO 'REFILL'. SHORTLY THEREAFTER THE APU PERFORMED AN AUTO SHUTDOWN. FLIGHT DIVERTED TO DEN AND LANDED WITHOUT FURTHER INCIDENT. SDR MEX2003088Apu · failedMEX-ORD - AIRCRAFT RETURNED TO PLATFORM DUE TO AIRCRAFT POWER UNIT FAILED WITHOUT APPARENT CAUSE. PERFORMED BITE PROCEDURE IAW FIM 49-11-00. (M)SDR C2XA03BT037Apu · seizedEWR FLT2578 CREW REPORTED DURING APU START APU FAILED INDICATION WAS INSTRUCTED I HAD A FIRE BLEW EXTINGUISHER BOTTLE. MX FOUND APU SIEZED INSPECTED AND PLACED ON MEL. #49-00-00. ACFT RELEASED FOR SERVICE. SDR REMAINS OPEN.SDR C2XA03BT022Apu · odorEWR---CO2521, CREW REPORTED, "STRONG SMELL OF FUEL WHEN APU START IN FLIGHT". MAINTENANCE PERFORMED OPERATIONAL CHECK OF THE APU IAW EMB145 AMM #49-10-00. NO FAULTS NOTED. VISUALLY INSPECTED APU IAW EMB145 AMM #49-02-00. NO LEAKS NOTED. AIRCRAFT RETURNED TO SSDR C2XA03BT014Apu · odorEWR---CO2517, CREW REPORTED, "FUEL ODOR WHEN OPERATING AIRCONDITIONING PACKS WITH APU RUNNING." MAINTENANCE PERFORMED OPERATIONAL CHECK OF AIRCONDITIONING SYSTEM (WITH APU RUNNING)IAW EMB145 AMM #21-51-00. OPS.CHECKED GOOD. NO ABNORMAL ODORS NOTED. AIRCRAFT RESDR C2XA03BT013Apu · odorEWR---CO2679, CREW REPORTED, "WHEN STARTING APU THERE WAS A STRONG FUEL SMELL." MAINTENANCE REPOSITIONED AIRCRAFT FROM "TAILWIND" CONDITION. RAN APU. NO FAULTS OR SMELLS NOTED IAW EMB145 MM 49-00-00. AIRCRAFT RETURNED TO SERVCIE.SDR DL777030085Charger · odorF/A AT 4R REPORTS SMOKE IN CABIN FROM AROUND SEATS 53 - 56. REPLACED APU BATTERY AND CHARGER. AC ALSO HAD STATUS MSG FOR BATTERY AND CHARGER. INSPECTED FOR DAMAGE, NONE FOUND.SDR C2XA03CL020Packing · leakingFLIGHT#2848 THE CREW REPORTED A FUEL SMELL IN THE COCKPIT WITH THE APU BLEED ON.MAINTENANCE RELEASED THE AIRCRAFT I/A/W MEL 49-00-00.MAINTENANCE INSPECTED AND REPLACED THE PACKING AND TEFLON RETAINER ON THE OUTLET OF THE APU MAIN FUEL SOLENOID VALVE.OPERATIONASDR COMA0360029Apu · unwantedFLIGHT 5807 STRONG FUEL SMELL WHEN APU STARTED.REPLACED APU.SDR ASOA02643Apu · shutdownFLT 4680 - DURING DESCENT INTO ATL AT APPROXIMATELY 13,000 FEET, THE AUXILIARY POWER UNIT SHUT ITSELF DOWN AUTOMATICALLY. THE CREW WAITED APPROXIMATELY TWO MINUTES AND RE-STARTED IT, AFTER WHICH THE ODOR OF FUEL OCCURRED IN THE COCKPIT AND CABIN. THE AIRCRAFSDR C2XA02CL230Apu · overservicedYUL FLIGHT#4092 THE CREW REPORTED A LAV SMOKE WARNING ON THE EICAS AND A STRONG OIL SMELL IN THE CABIN.MAINTENANCE INSPECTED AIRCRAFT FOR SMOKE OR FIRE DAMAGE AND NONE WAS FOUND.THE APU WAS DETERMINED TO BE GIVING OFF THE OIL SMELL AND WAS PLACED ON MEL.MAINTESDR DL76S021306Actuator · bindingELECTRICAL ODOR IN AFT CABIN REPORTED BY FLIGHT ATTENDANTS AFTER PUSHBACK AND ENGINE START. FOUND APU ACTUATOR STUCK OPEN WITH ELECTRICAL ODOR. R & R APU DOOR ACTUATOR. OPS CHECK NORMAL.SDR S2YA02043Control Unit · inoperativeDURING FLIGHT 2152 MKE-BWI THE APU GENERATOR OVER SPEED AND AUTO SHUT DOWN. THE CREW DIVERTED TO GRR SINCE THE RIGHT ENGINES DC GENERATOR WAS ALREADY ON MEL. MECHANIC WAS DISPATCHED AND THEY REPLACED THE APU DC POWER CONTROL UNIT. MECHANIC OPS CHECK THE APUSDR DLM88021235Apu · contaminatedJUST AFTER TAKE OFF FLT ATTENDENTS REPORTS HEAVY SMOKE ODOR THROUGH OUT CABIN. CREW RETURNED TO PNS. FOUND APU INLET CONTAMINATED WITH HYD FLUID. AIRCRAFT MTC FERRIED TO ATL. ATL MTC COMPLIED WITH OPN 5089 DUCT BURNOUT AND CLEANED APU INLET. ATL MTC UNABLE SDR USAASB02182Apu · failedDURING CRUISE, ENROUTE, NR 2 GEN OFF BUS BLUE LIGHT ILLUMINATED. NR 2 BUS OFF YELLOW LIGHT DID NOT ILLUMINATE. NO POWER WAS BEING PRODUCED FROM NR 2 GENERATOR. CREW STARTED APU AND POWERED RIGHT BUS. APU LOW OIL QUANTITY LIGHT ILLUMINATED FOLLOWED BY LOW SDR C2XA02BT036Apu · failedEWR/BTV---CO3526, ON TAXI, CREW REPORTED APU FAIL AND SMOKE ENTERED COCKPIT.....AIRCRAFT RETURNED TO GATE UNEVENTFULLY. MAINTENANCE INSPECTED AIRCRAFT/APU AND FOUND APU SHAFT TURBINE NOT TO SPIN. RAN BOTH ENGINES #1 AND #2. NO SMOKE IN COCKPIT. ALL SYSTEMS CHSDR 2002F00770Actuator · malfunctionedFLIGHT NUMBER 275. DURING CRUISE APU DOOR EICAS MESSAGE DISPLAYED IN FLIGHT. MAINTENANCE PERFORMED FIM 49-11-00, REMOVED AND REPLACED APU INLET DOOR ACTUATOR IN ACCORDANCE WITH M/M 49-15-06-4, OPERATIONAL CHECK NORMAL.SDR C2XA02CL103Valve · leakingCLE FLIGHT#3316 THE CREW REPORTED A STRONG FUEL SMELL IN THE AIRCRAFT WHEN THE APU IS STARTED.MAINTENANCE REPLACED THE APU AIRBLEED VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.SDR 02FDEA00277Apu · fire02-86 DURING CLIMBOUT, FIRE IN APU. SHUTDOWN APU. REMOVED AND REPLACED APU, FIRE OVERHEAT DETECTOR, FIRE BOTTLE AND SQUIB ASSEMBLY.SDR C2XA02IA081Apu · leakingDURING APPROACH FLIGHT 3649, THE CREW NOTED THAT THE APU FAILED ON APPROACH/STRONG FUEL ODOR IN CABIN AND COCKPIT. IAH- MAINTENANCE INSPECTED THE APU, AND, THE AIRCRAFT WAS RELEASED IAW MEL. IAH- MAINTENANCE REMOVED AND REPLACED THE APU, PERFORMED A OPERATISDR DL764020363Duct · leakingFOUND 3 WAY DUCT CRACKED. REPLACED DUCT. LEAK CHECKS NORMAL.SDR COMA0260181Apu · failedFLIGHT 5521 SMOKE IN COCKPIT AND CABIN.REPLACED THE APU.SDR DL757020243Charger · inoperativeVISIBLE SMOKE AND ELECTRIC SMELL IN CABIN AROUND ROW 42 ON GROUND, DURING BOARDING. FOUND APU BATTERY HOT WITH SOME SMELL COMING FROM COOLING VENTS. REPLACED APU BATTERY AND CHARGER PER MM CIRCULATED AIR THROUGH CABIN WITH PACKS. NO SMELL OR SMOKE.SDR SIMA200205401Apu · failedEWR - FLT 4587 - DURING TAXI OUT, CREW NOTED SMOKE IN CABIN AFTER APU FAIL AND SHUT DOWN. CREW RETURNED TO GATE AND PASENGERS WERE DEPLANED NORMALLY. NO FURTHER INCIDENTS WERE REPORTED. MAINTENANCE WAS SENT FROM LGA. AIRCRAFT WAS INSPECTED AND APU WAS DEFESDR C2XA02CL035Check Valve · stickingCLE FLIGHT# 4065 THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN WHEN THE APU WAS STARTED.MAINTENANCE REPLACED THE APU START FUEL CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.SDR C2XA02CL017Filter · leakingCLE FLIGHT# 3130 THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN AND COCKPIT AFTER APU START.MAINTENACE INSPECTED AND PLACED ON MEL.ON 1/22/01 MAINTENANCE REPLACED THE APU FUEL FILTER.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.SDR C2XA02CL010Drain Line · looseCLE FLIGHT#3275 THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT AFTER APU START ON THE GROUND OR IN FLIGHT.MAINTENANCE INSPECTED AND RESECURED DRAIN LINE ON THE APU FUEL PUMP.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.SDR DHL2002709002Electrical Sys · malfunctionedAPU ELECTRICAL TRIPPED OFF. A FEW SECONDS LATER, LEFT PACK TRIP OFF LIGHT ILLUMINATED AND THEN COCKPIT FILLED WITH SMOKE. RAN APU IAW MM 49-00 & JRH 8.1. APU & AIR OPS CHECKS GOOD. APU ELECTRICS WILL NOT HOLD A LOAD.SDR C2XA02CL006Check Valve · cokedCLE FLIGHT# 3199 THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT WHEN STARTING THE APU ON THE GROUND OR IN THE AIR.MAINTENANCE PLACED THE APU ON MEL.MAINTENANCE PERFORMED CLEANING OF THE APU COMBUSTOR DRAIN CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRSDR C2XA02CL003Valve · dirtyCLE FLIGHT#3024 THE CREW REPORTED THE APU STARTED ON THE GROUND WITH STRONG FUEL SMELL FILLING THE CABIN.MAINTENANCE PLACED THE APU ON MEL 49-00-00.MAINTENANCE REPLACED THE START FUEL CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVISDR DLM88011536Oil Cap · damagedAFTER T/O SMOKE ALARM WENT OFF AT 6500 FT SMOKE WASN'T EVIDENT IN COCKPIT FUMES WERE EVIDENT IN CABIN - FOUND APU OIL CAP O-RING CUT - REPLACED SAME - CLEANED AREA - PERFORMED DUCT BURNOUTSDR 2003FA0000218Battery · faultyAIRCRAFT WAS CONNECTED TO EXTERNAL AIRCRAFT POWER CART, AND POWERED UP. A LOUD POP WAS HEARD COMING FROM AFT EQUIPMENT BAY OF AIRCRAFT. DURING INVESTIGATION, ANOTHER POP WAS HEARD. ACCESSED APU BATTERY. FOUND IT TO BE DAMAGED AND SMOKING. FOUND SEVERAL CESDR C2XA01IA321Fuel Line · looseIAH - FLIGHT 3301, THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE RESECURED THE FUEL LINE ON THE APU FUEL PUMP.THE APU WAS OPERATIONALLY CHECKED GOOD, AND THE AIRCRAFT WAS APPROVED FOR RETUNRN SDR USAAF01047Battery Pack · inoperativeIND - THE RIGHT OVERWING EMERGENCY EXIT LIGHTS AND THE FLOOR EMERGENCY LIGHTS IN ROW 4-8 WERE FOUND INOPERATIVE. MAINTENANCE REPLACED BATTERY PACKS. OPS CHECKED OK. (M)SDR USAAF01046Battery Pack · inoperativeCLT - THE AFT FLOOR EMERGENCY LIGHTS WERE FOUND INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK FOR THE FLOOR EMERGENCY LIGHTS. OPERATIONALLY CHECKED OK. (M)SDR C2XA01IA283Apu · odorLIT - FLIGHT 4047, THE CREW REPORTED A STRONG FUEL ODOR AT FL350 WITH BOTH BLEEDS AND PACKS SELECTED. THE AIRCRAFT LANDED AT LIT WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT. PERFORMED OPERATIONAL TESTS WITH BOTH ENGINES RUNNING, AND NO DEFECTS SDR C2XA01CL149Apu · failedBTV FLIGHT#4059 THE CREW REPORTED THE APU HAD A AUTO SHUT DOWN ON THE GROUND.MAINTENANCE REPLACED THE APU.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.SDR USAAD01129Fuel Control · failedPIT-MIA - FLT 375 - DURING CRUISE, THE APU QUIT RUNNING. THE APU WAS RESTARTED AND RAN A FEW MINUTES BEFORE QUITTING AGAIN. AS THE LEFT ENGINE DRIVEN GENERATOR WAS ON MEL, THE AIRCRAFT NOW ONLY HAD ONE OPERATING GENERATOR. THE AIRCRAFT DIVERTED TO CLT AND LSDR M01053Apu · leakingTHE CREW FOUND SMOKE IN THE CABIN WITH THE PACKS ON. MAINTENANCE WAS CALLED AND FOUND OIL IN THE BLEED LINES FROM THE APU. THE APU WAS DEFERRED AND THE BLEED VALVE CLOSED. ON 07/01/2001 MAINTENANCE REMOVED AND REPLACED THE APU UNIT.SDR AALA20011177Apu · leakingBOS - FLT 1540 - EN ROUTE DFW-BOS - SHORTLY AFTER TAKEOFF CABIN FILLED WITH SMOKE. DE-PRESSURIZED AIRCRAFT. SMOKE DISSIPATED. LANDED BOS WITHOUT FURTHER INCIDENT. REPLACED APU. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)SDR AALA20011179Apu · leakingDFW - FLT 1794 - EN ROUTE MTY-DFW - SHORTLY AFTER NR 1 ENGINE START DETECTED OIL SMELL AND SMOKE IN COCKPIT AND CABIN. SHUTDOWN APU. SMOKE DISSIPATED. LANDED DFW WITHOUT FURTHER INCIDENT. REPLACED APU. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)SDR MASA01051Apu · inoperativeFLT 6072 - ON APPROACH TO PHX, THE CAPTAIN STARTED THE APU AND HAD AN OIL PRESSURE LOW CAUTION MSG IN FLIGHT, FOLLOWED BY A SMALL AMOUNT OF SMOKE IN COCKPIT. CREW SHUT DOWN THE APU AND LANDED WITHOUT INCIDENT. MAINTENANCE DEFERRED THE APU AND THE AIRCRAFT WASDR CA010531007Fuel Bowl · cracked(CAN) DURING THE TAXI IN THE AIRCRAFT LOST APPROXIMATELY 600 LBS OF FUEL. MAINTENANCE FOUND FUELLEAK FROM APU. UPON INSPECTION FOUND THAT THE FUEL WAS COMING FROM THE LOW PRESSURE FUEL FILTER BOWL CRACKED AT MOUNTING FLANGE. BOWL REPLACED AND AIRCRAFT RETURNEDSDR CA010406005Connector · damaged(CAN) THE AIRCRAFT WAS DEPARTING WHEN THE CREW EXPERIENCED AN APU FIRE INDICATION. THEY FOLLOWED PROCEDURES INCLUDING DISCHARGING THE EXTINGUISHER BOTTLE THEN RETURNED TO BASE. THE APU WAS INSPECTED BY MAINTENANCE AND THERE WAS NO INDICATION OF FIRE DAMAGE. TH
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