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.

SDR HALA2009080400348Apu · shutdownETOPS SIGNIFICANT SYS - ON PWR TRANSITION FROM EXTERNAL PWR TO APU PWR, APU SHUTDOWN. RESTARTED AND EICAS MESSAGE SIGNAL FMC L OPERATION. CYCLED R FMC PWR GND OPS CHK OK. PERFORMED BITE CHECK ON APU IAW FIM 49-11-00, FIG 103 NO FAULT NOTED.Aug 4, 2009 · N592HA · Boeing 7673CBSDR HALA2009080300347Apu · crackedETOPS SIGNIFICANT SYS, APU HAD AUTO SHUTDOWN FAULT LGT ILLUM EICAS MSG APU FAULT DISPLAYED. ECU BITE SHOWED LOP FAULT ON LEG 1 AND 2. FOUND APU OIL QTY AT ZERO. FOUND APU ASSY POSSIBLY CRACKED AND OIL IN THE EXHAUST AREA AND APU COMPT REMOVED AND REPLACED APAug 3, 2009 · N597HA · Boeing 767332SDR HALA2009080100342Apu · odorFLT CREW REPORTED ODOR OF SMOKE/ ELECTRICAL ODOR IN COCKPIT AND ALSO IN CABIN. REPLACED APU IAW HAL 1339-17 OPS CK GOOD.Aug 1, 2009 · N489HA · Boeing 717200SDR HALA200908010034Apu · odorFLT CREW REPORTED ODOR OF SMOKE/ ELECTRICAL ODOR IN COCKPIT AND ALSO IN CABIN. REPLACED APU IAW HAL 1339-17, OPS CK GOOD.Aug 1, 2009 · N489HA · Boeing 717200SDR DXTA2009072303737Lead · failedFIRE COMING FROM APU EXHAUST. AT THE SAME TIME, BANGING NOISE IS COMING FROM LEFT WING. T/S AND FOUND APU IGNITOR LEAD BAD REMOVED AND REPLACED WITH NEW. OPS CHECK WAS GOOD IAW MM 49-40-3.Jul 21, 2009 · N906QS · Cessna 750SDR UALA2009071402080Relay · failedAPU FAILURE, RTFL. REPLACED RELAYS K176 AND K547. ALSO REPLACED APU DOOR ACTUATOR AND OPERATED APU BEFORE AND AFTER DOOR ACTUATOR REPLACEMENT AND 6 SUCCESSFUL STARTS ACCOMPLISHED.Jul 14, 2009 · N661UA · Boeing 767322SDR ASAA0956191Apu · malfunctionedWHILE PERFOMING T/C 08031001 FOUND APU START CONV CB EXTENDED P91 PANEL E AND E COMP. ACFT GROUNDED. PERFORMED APU BITE 49-60 TASK 801. NO MESSAGES FOUND. ACCOMPLISHED FIM TASK 49-40-00-810-810. NO DEFECTS FOUND. GRND RAN APU 2 TIMES NO FAULTS FOUND REF 49-1Jul 10, 2009 · N577AS · Boeing 737890SDR DL738091121Apu · leakingSTRONG OIL ODOR IN MID CABIN ABOVE WINGS AT CRUISE. ALSO VERY STRONG WHEN APU BLEED ON AFTER LANDING. REMOVED APU FROM ACFT. INSTALLED NEW APU. PER AMM. AIR CHECKS GOOD. RAN ENG AND APU AIR. NO ABNORMAL ODOR NOTED. ACFT OK FOR SERVICEJul 6, 2009 · N382DA · Boeing 737832SDR HALA2009070600283Unknown · unknownOPEN - ETOPS SIGNIFICANT SYS - APU SHUTDOWN WHILE PUSHING BACK. RETURNED TO GATE. T/S IAW FIM49-11-00 FG 110, REM OIL COOLER IAW AMM 49-27-09-004-001 REM OIL COOLER BYPASS VLV IAW AMM 49-27-10-004-001 DISCONNECTED ELEC CONN FROM APU OIL TEMP SENSOR IAW AMM 4Jul 6, 2009 · N581HA · Boeing 76733ASDR UALA2009070201909Battery · weakAPU WILL NOT START. HANGS BETWEEN 25 AND 35 PERCENT RPM AND SHUTS DOWN WITH FAULT LIGHT ON. CREW COMMENTS: STARTED ON SECOND ATTEMPT. NOTED APU BAT TOOK EXCESSIVELY LONG TO FULLY RECHARGE AFTER START AND BAT DRAWS DOWN TO 14V DURING CRANK. BAT WEAK AND NEJul 1, 2009 · N672UA · Boeing 767322SDR HALA2009062700260Ecu · malfunctionedETOPS SIGNIFICANT SYS - APU FAULT ILLUMINATED DURING 1ST START ATTEMPT AFTER LANDING CLEARED FAULT LT STARTED 2ND ATTEMPT OK. PERFORMED BITE OF ECU IAW FIM 49-11-00 FIG 103 FAULTS NOTED 132,133 MINI FLAG APU OPERATING NML OK FOR SERVICE, REPLACED ECU AS PRECAJun 27, 2009 · N588HA · Boeing 767300SDR USAA2009062591586Apu · odorCABIN ODOR, F/A REPORTED FOUL ODOR IN CABIN. MX REMOVED AND REPLACED THE APU. (K)Jun 24, 2009 · N177US · Airbus A321211SDR CA090624001Apu · inoperative(CAN) AT COMPLETION OF SECOND ENG START, GROUND CREW REPORTED A "POPPING" SOUND AND SMOKE COMING FROM APU EXHAUST. FLIGHT CREW OBSERVED APU SHUTTING DOWN AND APU DOOR CLOSING. NO SMOKE OR UNUSUAL ODORS WERE DETECTED IN CABIN OR COCKPIT. UPON FURTHER INVESTIGJun 19, 2009 · Cndair CL6002B19SDR HALA2009061800258Apu · unknownETOPS SIGNIFICANT SYSTEM, APU AUTO SHUTDOWN. ACCOMP APU BITE. NO FAULTS NOTED, NO MINI FLAG, APU OIL QTY CKS OK. ONE START, APU OPERATED NORMAL. OK FOR SVC.Jun 18, 2009 · N596HA · Boeing 767332SDR REXA200900068Apu · smokeUPON APU START AT KCLE, THE CABIN AND COCKPIT FILLED WITH SMOKE. FLIGHT CREW NOTIFIED ATC AND ASKED FOR CFR. THE AIRCRAFT WAS EVACUATED WITHOUT INCIDENT. CFR FOUND NO EVIDENCE OF FIRE. MAINTENANCE DETERMINED THE SMOKE WAS PRODUCED BY THE APU. THE APU WAS Jun 15, 2009 · N8475B · Cndair CL6002B19SDR HALA2009061500246Apu · unknownETOPS SIGNIFICANT SYSTEM, APU FAILED TO START. FAULT LIGHT ILLUM AND EICAS MSG APU FAULT DISPLAYED. SECOND ATTEMPT INDICATES EGT HIGH. PERFORMED BITE CHECK OF APU NO FAULTS, CHECKED CONDITION AND SECURITY OF APU, OIL QTY CHECK GOOD, PERFORMED SUCCESSFUL STAJun 15, 2009 · N588HA · Boeing 7673CBSDR HALA2009061000232Apu · faultedETOPS SIGNIFICANT SYSTEM, APU FAULT LIGHT ILLUM. REMOVED AND REPLACED APU PER HAL M266-767, APU CHANGE OPS AND LEAK CHECK GOOD.Jun 10, 2009 · N586HA · Boeing 7673G5SDR REXA200900062Apu · smokeTHE AIRCRAFT WAS ON TAXIWAY A1 AT KFNT PREPARING TO RETURN TO THE GATE DUE TO WEATHER HOLD. THE FLIGHT CREW SMELLED SMOKE AND THE FLIGHT ATTENDANT REPORTED THERE WAS VISIBLE SMOKE IN THE CABIN. THE FLIGHT CREW DECLARED AN EMERGENCY, PERFORMED THE QRH AND EVAJun 9, 2009 · N8475B · Cndair CL6002B19SDR HALA2009052400192Apu · malfunctionedAPU AUTO SHUTDOWN WITH FAULT LIGHT ON ATTEMPTED ONE RESTART WHICH FAILED. FOUND UNDERSPEED AND MINI FLAGS 42 AND 66 ON APU BITE. FOUND NO LIGHT OFF ON SUBSEQUENT APU START TRIES ON APU BITE. REPLACED APU IGNITOR PLUG PER AMM 49-41-02. REPLACED APU IGNITIONMay 24, 2009 · N588HA · Boeing 7673CBSDR HALA2009042900167Apu · failedAPU GEN DROPPED OF LINE. REPAIR IN WORK.Apr 29, 2009 · N594HA · Boeing 767332SDR UALA200904220117ADuct · failedAPU ONLY PUTTING OUT 11 PSI ON ENG START. NOTABLE TO START ENGS. *S/D* TEE DUCT FWD OF SURGE FAILED. REPLACED AND OPS CHECK APU PNEUMATICS. DUCT PRESS NORMAL.Apr 21, 2009 · N657UA · Boeing 767322SDR ANCF2009040400039Apu · failedAPU HAD AUTO SHUTDOWN DURING PACKS ON AND ELEC LOAD FAULT LGT ILLUM AND A STRONG SHORT CIRCUIT ODOR. APU SECOND START WAS UNSUCCESSFUL IAW AMM 05-51-56 PAGE 201, INSPECTED CABIN BY ODOR AND IAW AMM 21-00-21, PAGE 201, CHECKED AIR CONDITIONING PACKS AND NO ODORApr 4, 2009 · N988AN · Boeing 767284SDR A6WA200940142Apu · fireDURING ACCEPTANCE CHECK WITH APU RUNNING, HEARD LOUD BANG FROM REAR OF ACFT. ON WALKAROUND, F/O NOTICED FIRE COMING FROM APU COMPARTMENT. APU FIRE PUSH LIGHTS SELECTED AND FIRE EXTINGUISHED. NO APU FIRE LIGHTS ILLUMINATED. C/W IMMEDIATE ACTION CHECKLIST. Mar 23, 2009 · N435AW · Cndair CL6002B19SDR HALA2009032300104Unknown · unknownETOPS SIGNIFICANT SYSTEM, APU AUTO SHUT DOWN AT GATE. BITE CHECK APU ECU FIRE EMERGENCY INDICATED OK PER 49-11-00 FIG 103 PAGE 105.Mar 23, 2009 · N596HA · Boeing 767332SDR DXTA2009022803526Apu · leakingREMOVED APU ACCESS PANNEL, AND FOUND OIL PRESENT AROUND THE STARTER GENERATOR. REMOVED APU BLEED AIR SUPPLY TUBE, AND FOUND OIL PRESENT INSIDE OF TUBE. REMOVED THE APU IAW MM 49-10-00, REV APU CYCLES , APU HOBBS 4069.4 BEFORE REMOVAL OF APU. BUILT UP APU FOFeb 28, 2009 · N608QS · Cessna 560XLSDR HALA2009021900057Apu · malfunctionedETOPS SIGNIFICANT SYSTEM, APU WOULD NOT RE-START ON GROUND. FAULT LIGHT INDICATION, EICAS INDICATES LOW APU OIL. VISUALLY INSPECTED APU FOR LEAKS, NONE NOTED. FOUND APU BLEED SWITCH IN ON POSITION. STARTED APU SUCCESSFULLY ON 1ST ATTEMPT. APU OIL INDICATEFeb 19, 2009 · N591HA · Boeing 76733ASDR DL777090102Battery · overheatedNOTICED ELEC BURNED ODOR AND SMOKE IN AFT CABIN AREA, FOUND APU BATTERY THERMAL DISCHARGED. REPLACED APU BATTERY AND CHARGER. FOUND APU BATTERY WITH BURN SPOT ON BACK AND IN CONTACT WITH INSULATION REPLACED APU BATTERY AND CHARGER PER MM. REMOVED BUR INSULAJan 25, 2009 · N863DA · Boeing 777232SDR LR7A2009020200013Duct · delaminatedDURING SCHEDULED C-9 CHECK PER JOB CARD HC4912, FOUND THE APU UPPER AIR INLET DUCT ASSY CRACKED. REPAIRED BY WELDING IAW LAC MEA 382-49-08-066.Jan 16, 2009 · N402LC · Lkheed 382GSDR UALA2008120106699Valve · defectiveCREW REPORTS: FLIGHT ATTENDANT REPORTED ABNORMAL SOUND FROM ENG 1 DURING START, CREW SHUTDOWN ENG, RESTART WITH SAME RESULTS, NO REPORT OF ANY ABNORMAL ENG PARAMETERS OR EICAS MESSAGES, ENGINE WAS RUN AT 50% N1 WITH ALL PARAMETERS NORMAL. ACCOMPLISH CHECKS WNov 29, 2008 · N772UA · Boeing 777222SDR AALA200802572ACsd · failedMSY INFLIGHT DFW TO TPA. CREW REPORTED RIGHT HAND CONSTANT SPEED DRIVE LOW PRESSURE INDICATION. APU WOULD NOT START. DIVERTED TO MSY AND LANDED WITHOUT INCIDENT. REPLACED CONSTANT SPEED DRIVE. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)Nov 23, 2008 · N7508 · Doug DC982SDR ASAA0853875Apu · odorVERY STRONG ODOR ON CLIMB-OUT AND DESCENDING THROUGH 10000 (MAINLY REAR CABIN AND FLT DECK) ALSO PUTRID ODOR ON FLT DECK (ON GROUND WITH APU RUNNING) NOT COMING FROM GASPERS. THE AIRCRAFT APU IS CAUSING SIGNIFICANT CABIN ODOR. SUSPECT COMPRESSOR OIL CONTAMINNov 21, 2008 · N557AS · Boeing 737890SDR DL764081556Apu · malfunctionedREPLACED APU, IN-FLIGHT APU START REQUEST LOADED IN GHGD.Nov 15, 2008 · N834MH · Boeing 767432ERSDR 2008UALA06386Duct · wornAPU PRESSURE DUCT FOUND WORN BEYOND LIMITS, BY CONTACT WITH STRUCTURE CUTOUT AT STA 2360 FRAME. REMOVED DUCT, WELD REPAIRED. REINSTALLED AND LEAK CHECKED. REPLACED SUPPORT NYLON SLEEVE.Nov 6, 2008 · N781UA · Boeing 777222SDR DXTA2008102703318Apu · odorWITH APU RUNNING AND BLEED AIR IN AUTO THERE IS A STRONG ODOR OF OIL. THERE IS ALSO MULTIPLE DROPS OF OIL ON THE FWD SERVICE COMP FLOOR JUST AHEAD OF THE FLY AWAY KIT BAGS. REMOVED APU DUE TO INTERNAL OIL LEAK AND INSTALLED A REPAIRED UNIT. IAW MM 49-000 ALLOct 24, 2008 · N277QS · Amd FALCON2000SDR MASA2008102200746Unknown · smokeASH FLT 7275 IAD-CAE. SMOKE COMING FROM APU INLET DURING SHUTDOWN. MX INSPECTED AIRCRAFT AND FOUND NO EVIDENCE OF UNCONTAINED FIRE AND PLACED APU ON MEL.Oct 22, 2008 · N650ML · Cndair CL6002B19SDR DL76G081502Apu · unknownREPLACED APU DUE START HISTORY. APU REPLACED.Oct 15, 2008 · N1602 · Boeing 767332SDR AALA200802435Apu · leakingINFLIGHT T4XG/24SEP CREW REPORTED NOXIOUS FUMES IN CABIN AND COCKPIT. COCKPIT CREW USED OXYGEN MASKS. RETURNED TO MCI AND LANDED WITHOUT INCIDENT. REPLACED AUXILIARY POWER UNIT (APU) AND PERFORMED PACK BURN OUT. SYSTEM GROUND CHECKED NORMAL OPS.Sep 24, 2008 · N9620D · Doug DC983SDR 2008UALA04277Battery · dischargedAPU BATTERY FOUND DEAD. REPLACED BATTERY & BATTERY CHARGER.Aug 14, 2008 · N214UA · Boeing 777222SDR 2008UALA04250Battery · faultyAPU BATTERY STATUS MESSAGE. *S/D* FOUND FAULTY BATTERY. REPLACED APU BATTERY PER MM 24-31-05, OP CHECK GOOD. AC OK FOR SERVICE.Aug 11, 2008 · N799UA · Boeing 777222SDR 2008UALA03272Battery · faultyAPU BATTERY CHARGING 62 AMPS, POPPED CB. *S/D* SUSPECT FAULTY BATTERY AND CHARGER. REPLACED APU BAT AND CHARGER REF MM 24-31-05 AND 24-31-06. AC OK FOR SERVICE.Jun 8, 2008 · N775UA · Boeing 777222SDR 2008UALA02984Actuator · malfunctionedUNABLE TO GET BLEED AIR FROM APU. STATUS MSG'S APU & APU BLEED AIR WITH MAINT MSG'S 49-10990 INLET GUIDE VANE ACTUATOR DOES NOT FOLLOW COMMAND AND 49-10980 INLET GUIDE VANE ACTUATOR LVDT CIRCUIT FAILED. SFOLM REPLACED THE INLET GUIDE VANE ACTUATOR. THE APU OMay 25, 2008 · N217UA · Boeing 777222SDR 2008UALA02618Apu · shutdownAPU AUTO SHUT DOWN.May 2, 2008 · N647UA · Boeing 767322SDR 2008UALA02538Apu · unknownAPU FAILED TO START. FAULT LIGHT ILLUMINATED AND EICAS MSG APU FAULT DISPLAYED. APU HAD OVER 6,000 CYCLES AND WAS REPLACED.Apr 30, 2008 · N544UA · Boeing 757222SDR 2008UALA02536Controller · faultyAPU STARTED AND THEN QUIT. REPLACED CONTROLLER PER MM 49-61-05 OPS NORMALAC OK FOR SERVICE.Apr 30, 2008 · N671UA · Boeing 767322SDR HALA0800551Battery · inoperativeETOPS SIGNIFICANT SYSTEM, APU DID NOT START-APU FAULT INDICATED. REPLACED APU BATTERY PER FIM 49-11-00 FIM 106A AND AMM 24-31-04. OPS CHECK GOOD.Apr 29, 2008 · N580HA · Boeing 76733ASDR 2008UALA02427Apu · inoperativePRIOR TO DEPARTURE APU FAILED TO START.Apr 24, 2008 · N668UA · Boeing 767322SDR 2008UALA02405Valve · malfunctionedAPU WILL NOT PRODUCE COOL AIR 89 DEGREES IN CABIN AT GATE. ACCOMPLISHED EXSTENSIVE TROUBLE SHOOTING FOUND LOW LIMIT VALVE TO BE FAULTY. REPLACED LOW LIMIT VALVE PER MM21-51-11. PERFORMED LEAK CHK NO LEAKS NOTED. OP CHECKED GOOD.AC OK FOR SERVICE.Apr 24, 2008 · N662UA · Boeing 767322SDR 08FDEA01470Drain Mast · bentAPU DRAIN MAST RIGHT UPPER FLANGE IS BENT AND THE MAST IS DENTED AND BENT. REMOVED AND REPLACED THE DRAIN MAST IAW SRM 51-40-21.Apr 22, 2008 · N661FE · Airbus A300F4605RSDR 2008UALA02173Apu · shutdownAPU SHUT DOWN ON ITS OWN AT THE GATE. FOUND METAL IN OIL FILTER AND CHIP DETECTOR. REPLACED APU. OP CHECKS NORMAL.Apr 14, 2008 · N671UA · Boeing 767322SDR 2008UALA02169Battery · discharged10 MINUTES PRIOR TO DEPARTURE CREW CALL EICAS MSG 'APU BATTERY. FOUND FAULTY BATTERY. REPLACED APU BATTERY. AC OK FOR SERVICE.Apr 13, 2008 · N215UA · Boeing 777222
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