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 C2XA08IA104Unknown · odorIAH - FLIGHT 3144, DURING PRE-FLIGHT INSPECTION THE CREW REPORTED A FUEL SMELL COMING FROM THE APU. MAINTENANCE INSPECTED THE AIRCRAFT, AND PLACED THE APU ON MEL 49-00-00 CTL#143170 CAT C, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. ON 04/09/08, IAHSDR SWIA200819459Relay · smokeFLT 3523 - SMELLED SMOKE IN COCKPIT. REPLACED APU FEEDER PROTECTION RELAY. OPS CHECK GOOD.SDR 2008UALA01771Relay · faultyAPU SHUT DOWN JUST AFTER NR 2 ENGINE STARTED APU HAS NO POWER ON INITIAL TESTING. SUSPECT RELAY. REPLACED RELAY STARTS NORMALLY AND ACCEPTS POWER TRANSFERS. AC OK FOR SERVICE
SDR AMTA200800240Apu · damagedDURING TAXI OUT, APU MAINT LIGHT ILLUMINATED, RETURNED TO GATE. INSTALLED MISSING HARDWARE AND REPLACED BENT WASHERS. REINSTALLED ACTUATOR ARMS IAW AMM 49-15-31-4. OPS CHECK APU NO MANT MSG NOTICE ON OVERHEAD. CURRENT STATUS SHOWED NO FLIGHT DECK LIGHT WITSDR DXTA200802963Apu · defectiveSTRONG ODOR COMMING FROM AIR CONDITION AND IN CABIN OF AC. REMOVED DEFECTIVE APU AND INSTALLED A REPAIRED APU. PERFORMED AN OPERATIONAL AND LEAK CHECK. ALL CHECKS PASSED. ALL WORK ACCOMPLISHED IAW MM CHAPTER 49-10-00.SDR DXTA20082927Apu · smokeAPU RUNNING, WITH BLEED ON AND ENGINES RUNNING, SMOKE ENTERED THE CABIN. REMOVED AND REPLACED APU. SERVICED OIL TO FULL. OPERATIONAL AND LEAK CHECK GOOD. WORK PERFORMED IAW MM 49-10-00.SDR DL76L080306Apu · malfunctionedNO APU AIR FROM APU AFTER PUSH BACK. APU S/W OFF AND RESTARTED ALL NOW, OPS OK AIR SYSTEM ALL OK.SDR DXTA20082903Apu · overservicedON TAKEOFF, COCKPIT AND CABIN BEGAN FILLING WITH SMOKE. AN IMMEDIATE RETURN FOR LANDING WAS ACCOMPLISHED. FOUND APU OVER SERVICED AND REMOVED EXCESS OIL. INSPECTED ENGINE AND AIRFRAME. INSPECTED BOTH WATER SEPARATOR AND CLEANED. OPERATIONAL AND LEAK CHECKESDR 2008UALA00906Battery · faultyAPU DOES NOT START. SHUTS DOWN AT AROUND 18 PERCENT. REPLACED APU BATTERY AND CHARGER. APU STARTS OK.SDR USAA920080345Apu · odorLOG PAGE 7869922 - FLT NR 430 - CLT-PHX - ODOR - "DIRTY SOCKS" ODOR IS VERY STRONG IN CABIN CAUSING SEVERAL ALLERGIC REACTIONS FROM CREW MEMBERS AND PASSENGERS. MAINTENANCE CLEANED THE APU INLET IAW TASK CARD Z6D49302. RAN PACKS AND OPERATIONAL CHECK WAS GOOSDR 08FDEA00262Apu · fireAT TOUCHDOWN, APU FIRE LIGHT, AGENT AUTO FIRED. APU FIRE HANDLE PULLED. APU MASTER SW WAS OFF AND APU WAS NOT ON/RUNNING. UPON FURTHER INVESTIGATION, DISCOVERED EVIDENCE OF A FIRE IN THE APU COMPARTMENT. PLUG P18 FROM THE MONOPOLE ASSY IS MELTED AND BURNEDSDR KNNA20080001Apu · malfunctionedTHERE WAS AN APU FIRE INDICATION IN FLIGHT AFTER PILOTS FOLLOWED ABNORMAL CHECK LIST FOR CSD LOW OIL PRESSURE LIGHT ILLUMINATION. ACCORDING TO PILOT'S REPORT, THEY WERE AT FLIGHT LEVEL 34,000 FEET WHEN THEY ATTEMPTED TO START, AS PER CHECK LIST, THE APU WHEN SDR KNNA200700069Apu · unknownTHERE WAS AN APU FIRE INDICATION IN FLIGHT AFTER PILOTS FOLLOWED ABNORMAL CHECK LIST FOR CSD LOW OIL PRESSURE LIGHT ILLUMINATION. ACCORDING TO PILOT'S REPORT, THEY WERE AT FLIGHT LEVEL 34,000 FEET WHEN THEY ATTEMPTED TO START, AS PER CHECK LIST, THE APU WHEN SDR DL764080009Battery · overheatedON PRE-DEPARTURE CHECK ALL PASSENGERS OFF AIRCRAFT. FOUND SMOKE IN AFT CABIN. CORRECTIVE ACTION WAS TO REPLACE APU BATTERY FOR SMOKE AND APU BATTERY CHARGER PRECAUTIONARY.SDR AMTA200700724Relay · failedAPU FAILED TO START ON THE GROUND. REMOVED AND REPLACED APU RELAY IAW FIMM 49-11-00, OPS CHECK NORMAL. (K)SDR HALA0700555Unknown · unknownETOPS SIGNIFICANT SYSTEM, "APU FAULT" APU WILL NOT START. T/S PER FIM 49-11-00/101 FIG 103, ECU BITE SHOWED "START ABORTED" AND LRU FAULT "AC START CIRCUIT" APU STARTED NORMALLY SEVERAL TIMES AND ALL TESTS CHECK GOOD PER FIM 49-11-00, "APU FAULT" CLEARED AND SDR 2007UALA05214Apu · contaminatedRTFL DUE TO SMOKE ODOR ON FLIGHT DECK. AFTER LENGTHY TROUBLESHOOTING, DETERMINED ODOR DUE TO OIL SPLASHED IN APU INLET. APU ASSY REPLACED PER AMM49-11-01 PG401. PERFORMED PACK BURNOUT, NO FURTHER REPORT OF ODOR.SDR 2007UALA05125Apu · shutdownAPU SHUT DOWN AT GATE FOR NO APPARENT REASON. REPLACE APU OIL CLUSTER, OPS CHECKED NORMAL. AC OK FOR SERVICE.SDR AMTA200700712Computer · malfunctionedAPU FAULT LIGHT IS ON WHEN ATTEMPTING TO START APU AND WILL NOT START. RELOADED APU SOFTWARE IAW AMM 49-61-00-2, BITE CHECKS GOOD IAW AMM 49-61-00-700-801. APU STARTS NORMALLY IAW AMM 49-11-00-860-801 WITH NO FAULTS. (K)SDR P5CA0701541Apu · auto shutdownRECEIVED "APU" AND "APU DOOR" STATUS MESSAGES AND APU AUTO SHUTDOWN FOLLOWING ENGINE START. RETURN TO BLOCKS AND APPLIED MEL 49-11-1 AND 49-15-1A. MAINTENANCE ACTION WAS ACCOMPLISHED AS PER THE DDG.SDR HALA0700515Apu · shutdownETOPS SIGNIFICANT SYSTEM, APU SHUT DOWN ON TAXI IN, PER FIM 49-11-01. BITE ECU NO FAULTS OPS CK GOOD APU OK TO CONTINUE.
SDR HALA0700516Apu · unknownETOPS SIGNIFICANT SYSTEM, APU FAILED TO START. FAULT LGT ILLUM AND EICAS MSG APU FAULT DISPLAYED. BITE CK ECU, NO FAULTS NOTED. CHECKED APU OIL QTY OK. STARTED APU ON GRD 2X, NORMAL STARTS OK FOR SERVICE.
SDR MASA200700804Actuator · malfunctionedASH FLT 7307 BMI - APU OVERTEMP FOLLOWED BY APU FIRE THEN APU FAULT. MX TROUBLESHOT AND FOUND NO EVIDENCE OF FIRE. REMOVED AND REPLACED THE DOOR POT AND THE LINEAR ACTUATOR, OPS NORMAL.SDR A6WA200740659Intake Duct · crackedAPU INTAKE DUCT CRACKED. APU INTAKE DUCT REPLACED IAW AMM. (K)SDR AMTA200700586Warning Message · false activationAFTER BOTH ENG STARTED W/MASTER CAUTION RECALL APU LIGHT STAYED ILLUMINATED. COMPLIED WITH APU BITE CHECK FOUND FAULT 49-11019 COMPLIED WITH FIM TASK 49-10 TASK 801 FAULT CLEARED. OPS CHECK NORMAL. (K)SDR 2007UALA04564Charger · faultyAPU BATTERY DOES NOT CHARGE. SUSPECT FAULTY BATTERY CHARGER. REPLACED APU BATTERY AND CHARGER OPS CHECKED GOOD. ACFT OK FOR SERVICE.SDR AALA20072058Inlet · contaminatedPHX INFLIGHT T1770/28OCT - FLIGHT ATTENDANTS REPORTED BLUE SMOKE OR HAZE IN CABIN AND ODOR NOTED IN COCKPIT. RETURNED TO PHX AND LANDED WITHOUT INCIDENT. FOUND OIL IN APU INLET. ACCOMPLISHED PACK BURN OUT AND REPLACED BOTH COALESCER BAGS. SYSTEM GROUND CSDR 2007UALA04283Battery · faultyAPU WILL NOT START. BATTERY VOLTAGE 16 VOLTS. BATTERY VOLTAGE 16V, REPLACED BATTERY.SDR UPS07650911Switch · failedINSPECTION TYPE:ETOP DIVERSION - ETOPS - APU FAILED EN ROUTE WITH LT IDG ON DEFERRAL. DIVERTED TO BANGKOK. 10-24-07 R & R DOOR SWITCH, NO HELP. FOUND TARGET BRACKET ON DOOR BROKEN. REMOVED APU INLET DOOR PER MM 49-15-05. INSTALLED APU INLET DOOR PER MM 49SDR AMTA200700504Unknown · unknownAPU WOULD NOT POWER LEFT A/C BUSS. (K) 10-26-07 REMOVED AND REPLACED MODULE IAW AMM 24-21-51-4, OPS CHECK NORMAL PER AMM 24-21-00-5. (M)SDR RAIA00710006Apu · smokeFLT NR 7986-IAD-ODOR IN COCKPIT, NO SMOKE. MAINTENANCE RAN ENGINES AND PACKS, OPERATING MANUAL FOUND ODOR TO BE FROM APU WITH PACKS RUNNING. APU TEMP TO HIGH WITH PACKS RUNNING. DEFERRED APU IAW MEL.SDR 2007UALA04115Switch · faultyAPU AUTOSHUTDOWN 5 TIMES WITHIN 10 SECONDS AFTER STABILIZING AT 95PC RPM.
SDR HALA0700424Apu · malfunctionedETOPS SIGNIFICANT SYSTEM, APU WILL NOT START GETS TO 15 PERCENT THEN NO ACCELERATION. BITE CHECK APU ECU PER FIM 49-11-00 FIG 103, NO DEFECTS NOTED, STARTED APU 3X OPS CHECK OK, OK FOR SVC.SDR 2007UALA03978Battery · failedAPU BATTERY FAILURE. 10-26-07 REPLACED APU BATTERY & APU BATTERY CHARGER, SYSTEM OP CHECKS GOOD.SDR P5CA0701535Isolation Valve · malfunctionedAPU EICAS MESSAGE AFTER T/O. ALSO HEARD LOUD SOUND FROM ABOVE MAIN DECK SIDE CARGO DOOR. AIR TURNBACK. REPLACED APU ISOLATION VALVE, INSEPCTED DUCTS NO DEFECTS NOTED. ACCOMPLISHED PRESSURIZATION CHECK OF CARGO DOOR AND INSPECTED SEALS. NO DEFECTS NOTED, PSDR HALA0700412Apu · malfunctionedETOPS SIGNIFICANT SYSTEM, APU FAULT HUNG 20 PERCENT. PERFORMED APU ECU BITE PER FIM 49-11-00 FIG 103. NO FAULTS NOTED. ACCOMP NORMAL START AT GATE. APU RUNS NORMALLY PER 49-11-00 IN THE AMM. OK FOR SERVICE.SDR AMTA200700444Apu · auto shutdownAPU AUTO SHUTDOWN WHILE AT GATE. INTEROGATED ECU, NO FAULTS FOUND FOR CURRENT OR PREVIOUS SHUTDOWNS, STARTED APU NORMAL START. (K)SDR 2007UALA03735Apu · shutdownAPU SHUTDOWN WHILE AT GATE. 10-9-07 ACCOMPLISHED FADEC BITE TEST - LAST FIVE LEGS SHOW NO FAULTS. REPLACED OIL PRESS SWITCH. APU RUNS NORMAL WITH FULL ELECTRICAL AND AIR LOADS.SDR DXTA200702476Unknown · malfunctionedTHE APU WAS RUNNING NORMAL WHEN IT SHUTDOWN BY ITSELF FOR NO REASON. TRIED TO RESTART THE APU BUT IT WOULD NOT GO PAST 23 PERCENT. DID A COMPLETE RESET OF THE AIRPLANE AND SYSTEMS. TRIED TO START THE APU AGAIN AND WOULD NOT PASS 23 PERCENT. THE APU WILL NOT STSDR DL76G071187Apu · faultedAPU FAULT APU SHUT DOWN ON ENGINE START. STARTED ENGINE AT GATE NDF OK. PERFORMED BITE OF ECU LAST SHUTDOWN HIGH OIL TEMP CHECK APU OIL AND FILTER POP OUT. ALL CHECKS NORMAL, OK FOR SERVICE.SDR 2007UALA03592Module · failedEMERGENCY SHUTDOWN DISPLAYED ON UPPER ECAM SCREEN - APU. CREW COMMENTS: APU WAS SHUT DOWN 20 MINUTES AGO WHILE ON GROUND. WHILE AIRBORNE GOT ECAM. *S/D* EIM MODULE FAILURE. REPLACED EIM 8061KM.SDR HALA0700359Unknown · unknownETOPS SIGNIFICANT SYSTEM, APU INFLIGHT START, OAT - 44 DEG C, TIME 44 SEC (FROM START TILL FAULT LIGHT), FL 350. 3RD ATTEMPT UNSUCCESSFUL. TROUBLESHOT PER FIM 49-11-00 FIG 104, 103, 107. BITE ECU NO MINI FLAGS FAULTY LRU "SEE MAINT MAN" WITH REASON "NO LIGHTSDR AMTA200700397Apu · inoperativeAPU DOES NOT START. FAULT LIGHT ON. BITE APU, STARTED APU OPS CHECK GOOD REM 49-00-00. (K)SDR BB07065Check Valve · chatteringFLIGHT 728, PHL-GLA: CREW REPORTED A RHYTHMIC KNOCKING SOUND IN THE AREA OF SEAT 13A. FLIGHT RETURNED TO PHL. MAINTENANCE REPLACED THE APU CHECK VALVE.SDR AMTA200700370Charger · unserviceableEICAS MESSAGE (APU BTY CHARGER). REMOVED AND REPLACED (APU BATTERY CHARGER) IAW MM CH 24-31-04, OPS CHECK GOOD. (K)SDR 2007UALA02860Apu · odorSTRONG ELECTRICAL ODOR IN COCKPIT. [80-21-07] ACCOMPLISHED FIM 21-00 TASK 808 AND FOUND THE APU TO BE THE SOURCE OF THE ODOR IN THE FLT DECK AND CABIN. ACCOMPLISHED PACK BURN USING ENG BLEED TO OPERATE PACKS, OPS NORMAL NO DEFECTS NOTED. REPLACED BOTH OZSDR MASA200700449Unknown · unknownASH RON DTW. PILOT REPORTED THAT UPON STARTING THE APU, NOTICED A STRONG FUEL ODOR IN THE COCKPIT AND CABIN, AND ABORTED THE START SEQUENCE. NO ODOR NOTED.SDR MASA200700447Unknown · unknownASH 7178 IAD. AFTER APU START STRONG ODOR OF FUEL. MX OPS CHECKED NORMAL, NO ODOR NOTED.SDR HALA0700302Apu · unknownETOPS SIGNIFICANT SYSTEM, APU AUTO SHUTDOWN AFTER START. PERFORMED BITE PROCEDURE ON ECU PER FIM 49-11-00 FIG 103. UNDERSPEED MESSAGE RESET PER FIM 49-11-00. APU OPS NORMAL. NO MESSAGES ON ECU.SDR HALA0700288Unknown · unknownETOPS SIGNIFICANT SYSTEM, APU AUTO SHUT DOWN AT GATE. PERFORMED ECU BITE PER FIM 40-11-00-1. NO FAULTS NOTED. RESTARTED APU, OPS CK NORMAL WITH NO FAULTS. OK FOR SERVICE.
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