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 AALA201905229001Apu · odorAIRCRAFT WAS GROUNDED: FLT ATTENDANT REPORTED "WAXY SMELL" ON DECENT FROM ABOUT 10,000 UNTIL CABIN DOOR WAS OPENED AT GATE. MAINTENANCE CONFIRMED THE SOURCE WAS FROM THE APU. FOUND THE INLET OF THE APU TO BE VERY DIRTY, WASHED THE EXTERIOR OF THE APU AND RAN ISDR CA190521027Battery · failed(CAN) A FEW WEEKS AGO, THE FLIGHT CREW NOTICED APU BATT TEMP WAS HIGHER THAN AVIONICS BATTERY AND CLIMBING. CREW SAID THEY SAW TEMP AROUND 50 CELSIUS BEFORE SHUTTING DOWN AIRCRAFT. THEY CYCLED APU BATTERY CONNECTOR AND POWERED BACK ON WITH ALL INDICATIONS NORMSDR UIEA2019042804056Unknown · malfunctionedAPU WOULD NOT START AFTER LANDING. APU FAULT DISPLAYED, ATTEMPTED START 3 TIMES WITH SAME FAULT. (<P>BITE CHECK FCM PER AMM 49-11-00. NO FAULTS DISPLAYED, PERFORMED APU START, 1 ATTEMPT SUCCESSFUL PER AMM 49-11-00. OPS CHECK GOOD. </P>)SDR UIEA2019042904061Unknown · malfunctionedAPU INOP.(<P>TRANSFERRED TO MDDR 110852.</P><P>LP 1018850 - M3: PERFORMED APU BITE IAW FIM 49-11 F/T 987. NO FAULTS NOTED. PERFORMED OPS CHECK OF APU PER AMM 49-11-00. OPS CHECK NORMAL. THIS CLEARS DMI 110852. PLACARDS REMOVED. MCC NOTIFIED. DISPATCH - AA @ 05SDR AALA2019043069046Apu · leakingAIRCRAFT WAS GROUNDED: PILOT REPORTS AFTER DEPARTURE ODOR IN FWD GALLEY /FLT DECK SEEMS TO BE ELECTRICAL SMELL, TROUBLESHOT AND ISOLATED SYSTEMS, COULD NOT DETERMNE SOURCE BUT ODOR DISAPATED DURING CRUISE. DURING DESENT , THRUST IDLE , DIRTY SOCK SMELL. MAINTSDR DXTA2019042502313Unknown · odorCOCKPIT ODOR OIL SMELL - DURING FLIGHT, SELECT A WARM TEMPERATURE, THERE'S A STRONG OIL SMELL IN THE COCKPIT. BORESCOPED APU INLET FOR ERODED OIL SEALS WITH NO ABNORMALITIES FOUND. RAN THE APU WITH BLEED AIR SELECTOR IN VARIOUS POSITIONS AND RAN BOTH ENGINESSDR UIEA2019042303933Apu · malfunctionedAPU AUTOMATIC SHUTDOWN (NOTE: ON DEPARTURE/ENG START). (<P>PERFORMED OPERATIONAL CHECK OF APU PER AMM 49-11-01. OPS CHECK GOOD. </P>)SDR DXTA2090419802291Unknown · odorIN BOUND STARTED THE APU AT 2500' AT 200 KTS AND AS THE APU WAS POEWERING UP THE #1 MCDU WENT BLANK AND WE HAD AN ELECTRICAL SMELL IN THE COCKPIT. SHUT THE APU DOWN AND THE #1 MCDU CAME BACK 'ON'AND LANDED NORMAL. REPLACED CONDENSER BAG AND PERFORMED OPS CHSDR XCGA20190411001Apu · smokeFLIGHT CREW REPORTED THAT SHORTLY AFTER TAKE OFF WITH THE APU RUNNING AND APU BLEED AIR SELECTED ON SMOKE ENTERED THE CABIN. THE APU BLEED AIR WAS SELECTED OFF AND THE SMOKE CLEARED. THE PILOT RETURNED TO THE DEPARTURE AIRPORT. TROUBLESHOOTING REVEALED THE SOUSDR ASAA2019040988942Warning Light · false activationAFTER GETTING APU GEN ONLINE THE OVERSPEED LIGHT ILLUMINATED AND APU GEN KICKED OFF LINE RE-ESTABLISHED GEN 1 AND 2 RAN QRH AND AFTER 5 MIN OVERSPEED LIGHT EXTINGUISHED. GROUNDED - YES. RAN APU BITE REF B737-900 FIM 49-61 TASK 801 NO CURRENT FAULTS FOUND. SPEESDR UIEA2019040543772Apu · faultedAPU FAULT 2 ATTEMPTS. (<P>PERFORMED FIM 49-11 FT 958, NO FAULTS FOUND. PERFORMED OPS CHECK OF APU I.A.W AMM 49-11-00, OPS GOOD AT THIS TIME. </P>)SDR A6WA201904046530Apu · odorDURING ARRIVAL CREW ATTEMPTED APU START WITH NO LIGHT OFF. AFTER TWO MINUTES SUCCESSFULLY STARTED APU THEN RECEIVED ODOR OF FUEL IN CABIN, SHUT DOWN APU.SDR AALA2019030879009Apu · leakingDIRTY SOCK ODOR DETECTED WHILE DESCENDING THROUGH 10,000. THE ODOR DIMINISHED AFTER FIVE MINUTES AND THEN REOCCURED AFTER CONFIGURED FOR LANDING. F/A REPORTED THE ODOR AT THE GATE, APU WAS OFF. FOUND APU TO HAVE AN INTERNAL LEAK. NO EXTERNAL LEAKS NOTED.SDR AALA2019030869011Apu · leakingTHE PILOT REPORTED THERE WAS A DIRTY SOCK ODOR, WHILE DESCENDING THROUGH 10,000FT. THE ODOR DIMINISHED AFTER 5 MINUTES, & THEN REOCCURED AFTER CONFIGURED FOR LANDING. MAINTENANCE ACCOMPLISHED CARD 26L00021001 & 26L00021002 AND DETERMINED THAT THE APU HAD AN SDR 2019F00136Truss Fitting · corrodedAPU TRUSS MOUNT (FLANGE) CORROSION. ACCOMPLISHED ENGINEERING LETTER DQ18604M1 DATED FEB. 26, 2019; 680-0144 (N397QS) APU TRUSS MOUNT (FLANGE) CORROSION.SDR AALA2019030489013Apu · odorDURING DESCENT, EXPERIENCED A FUME EVENT. DIRTY SOCK, MUSTY, OIL ODOR IN THE COCKPIT, CONTINUED DESCENT THRU 16,000 FT, IDLE POWER AND WING ANTI-ICE ON, OIL QUANTITY 17 QTS. FUMES SEEMED TO CONTINUE THRU ENGINE SHUTDOWN. MAINTENANCE TRACKED THE SOURCESDR UIEA2019022603385Apu · unknownAPU WOULD NOT START 2 ATTEMPTS. PERFORMED AN OPS CHECK OF THE APU STARTER, NO FAULTS NOTED IAW AMM 49-11-00.SDR UIEA2019021103182Apu · faultedAPU FAULT WHEN ATTEMPTING TO START.(<P>PERFORMED MULTIPLE APU START UPS & SHUTDOWNS WITH APU ECU BITE PROCEDURE IAW B767 AMM 49-61-05,NO DEFECTS NOTED.</P>)SDR UIEA2019021103176Apu · faultedAPU FAULT WHEN ATTEMPTING TO START (<P>TROUBLESHOOT PER FIM 49-65-06 CLEARED FAULT ON ECU STARTED SEVERAL TIMES NO DEFECTS NOTED </P>)SDR HALA2019020800050Fault Message · false activationETOPS SIGNIFICANT SYSTEM - APU FAULT. // OPERATED APU PER AMM 49-00-00 PERFORMED SYS TEST NO FAULTS NOTED OK FOR SVC.SDR SWIA2019012945478Apu · smokeSMOKE TOILET CAUTION. WHEN ON APPROACH. APU WAS RUNNING. RAN QRH PROCEDURE AND MESSAGE CLEARED. COULD SMELL BURNING SMELL IN THE COCKPIT. THE SMELL DISSIPATED AFTER THE QRH PROCEDURE. (FLT#4990) FO: 01/29/2019 CLOSED REMOVED AND REPLACED APU ASSY. LEAK AND OPSSDR AALA2019010959003Apu · odorDIRTY SOCK ODOR DURING CLIMB AND CRUISE. SUBSIDED DURING DESCENT AND APPROACH. COCKPIT TEMP CONTROLLER NORMAL AT 12 O'CLOCK. CABIN TEMP CONTROLLER FORWARD AND AFT IN THE 9 TO 9:30 POSITION. THE AIRCRAFT WAS GROUNDED. ACCOMPLISHED JC 26L00021001 AND 26L00SDR AALA201901049022Apu · odorDIRTY SOCK ODOR DURING CLIMB AND CRUISE, SUBSIDED DURING DESCENT AND APPROACH. COCKPIT TEMPERATURE CONTROLLER NORMAL 12 O'CLOCK POSITION. CABIN TEMPERATURE CONTROLLER FORWARD AND AFT IN THE 9 TO 9:30 POSITION. MAINTENANCE ACCOMPLISHED JC 26L00021001, AND 26LSDR UIEA2019010400012Unknown · malfunctionedAPU FAULT, APU WOULD NOT START, 2ND ATTEMPT RPM UP TO 27 THEN ROLLED BACK (<P>PERFORMED APU BITE IAW FIM TASK 49-11 FT 958 NO FAULTS NOTED NO MINI-FLAGS NOTED, PERFORMED APU OPS CHECK IAW AMM 49-11-00, APU STARTED ON FIRST ATTEMPT OPS CHECK NORMAL AT THIS TIMESDR HALA2018123100684Apu · faultedETOPS SIGNIFICANT SYSTEM - APU FAULT; ATTEMPTED 3 STARTS // APU LAST LEG REPORT SHOWS FAULT, OIL COOLER(5100KT8)/COOL FAN ASSY(5100KH6), T/S PER A330 TSM 49-62-00-810-815-A. STARTED APU 3X, ALL WITH NO FAULTS. GROUND SCAN SHOWS NO FAULTS, OIL QTY AND GENERAL VSDR UIEA201812312962Apu · malfunctionedAPU INOP(<P>TRANSFER TO MDDR # 105254 IAW DDG 49-11-01A CAT C </P><P>LP 1047299 M8 APU BITE OPS CHECK GOOD IAW AMM 49-61-05 AND 49-11-00 THIS CLEARED MDDR 105254 PLACARD REMOVED </P>)SDR UIEA2018123102966Unknown · fault messageAPU FAULT ON START UP AFTER LANDING STARTED SECOND ATTEMPT(<P>PERFORMED APU & & ECU BITE TEST IAW FIM 49-11 FT 987 & AMM 49-11-00 / 501 NO FAULT NOTED AT THIS TIME PERFORMED 03 NORMAL APU START TO TEST; OPS CHECK NORMAL.</P>)SDR DALA2018122607391Unknown · smokeAFTER SERVICING APU OIL AND RUNNING APU FOR LEAK CHECK. APU SMOKED CABIN WITH NO EXTERNAL LEAKS FROM CAP. R/R OF APU PER WORK CARD 4900-2121, LEAK / OPS NORMAL , NO LEAKS. PERFORMES AIRCONDITIONING SYSTEM OIL CONTAMINATION CLEANING. NO OIL CONTAMINATION FOUND SDR HALA2018122400670Gear · damagedETOPS SIGNIFICANT SYSTEM - APU DOOR SHOWS OPEN WITH APU IN OFF POSITION/ AUTO SHUT DOWN ON ECAM.// PERFORMED BITE TEST ON APU SHUTDOWN MSG OIL CONTAMINATION OIL
CHIP DETECTION REMOVED AND REPLACED FILTERS, AND INSPECTED CHIP DETECTORS. MSG CLEARS DOOR ACTSDR GTIA2018121003003Apu · odorPOSSIBLE FUME EVENT JUST BEFORE LANDING -PERFORMED OF THE CAUSE OF CABIN ODORS IAW TSM 05-50-00-810-831-A. PERFORMED APU TSM 49-00-00-810-921-A. RAN APU FOUND TO BE THE SOURCE. PERFORMED BOTH ENG #1 & #2 IAW AMM 70-00-00. NO EVIDENCE OF ODOR AT THIS TIME. A/C SDR GTIA2018121003001Apu · odorSTRONG DIRTY SOCK ODOR ON DESCENT DONNED O2 MASKS-PERFORMED TSM 05-50-00-810-831-A FOUND APU TO BE CAUSE OF ODOR, RAN BOTH ENGINE WITH PACKS ISOLATED , AEROTRACER DIDNT DETECT AND AIR QUALITY CONTAMINUTES PERFORMED PACK DECONTAMINATION IAW AMM 21-00-00-615-003SDR ASAA2018121087125Apu · overheatedAPU CT5ATP CONTINUES TO REMAIN ABOVE THE 605 DEGREE THRESHOLD. APU REPLACEMENT REQUIRED. SIGNIFICANT SYSTEM INSTALLATION TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED ASDR DXTA2018120301752Apu · odorCABIN ODOR OIL SMELL - SMELL OF FUMES IN CABIN AND COCKPIT WHEN APU TURNED ON. SMELL OF BURNT OIL.
DETERMINED SOURCE OF ODOR WAS RESIDUAL ODOR LEFT IN THE DUCTING FROM A
PREVIOUS A.P.U THAT WAS REMOVED DUE TO BURNING OIL.SDR AALA201811269010Heat Exchanger · failedDESCENDING THROUGH 8000', A STRONG ODOR OF BURNING PLASTIC. NO SMOKE, 10 MINUTES LATER THE ODOR DIMINISHED. FLIGHT ATTENDANTS REPORTED ODOR IN CABIN, STRONGEST IN MID CABIN. SUPPLEMENT TO BE FILED UPON FINAL CORRECTIVE ACTION. FOUND SOF COMING FROM L/H PACK CSDR DALA2018112706872Apu · leakingDURING BOARDING MAINTENANCE WAS NOTIFIED OF PASSENGERS COMPLAINTS OF OILY ODOR IN CABIN. FLIGHT CREW SMELLED ODOR ALSO. TURNED PACKS OFF AND ODOR DISSIPATED. NO SMOKE NOTED. COMPLY WITH NO GO ODI PREVENTION PROGRAM. FOUND SOURCE OF SMELL COMING FROM APU. FOUNDSDR GTIA2018112202976Apu · odorF/A REPORTS STRONG SMELL IN AFT CABIN DURING DECENT THROUGH 10,000 FEET AND GETTING STRONGER DURING LANDING ENGINES AT IDLE POWER. F/O ALSO REPORTED ODOR IN COCKPIT DURING LANDING-R & R APU IAW AMM 49-11-11. OPS CHECK GOOD NO DEFECTS NOTED.THIS CLEARS DMI # SDR UIEA201811212660Actuator · not reportedAPU PLACED ON DEFERAL DUE TO BLEED ISSUES (<P>OPENED MEL 49-11-01 MDDR 103112</P><P>REF LOGPAGE 1008682 - REMOVED AND REPLACED IGV ACTUATOR PER AMM 49-53-02; MDDR 103112 CLEARED AT THIS TIME.</P>)SDR DALA2018111966668Apu · odor(LP# 3837008) DIRTY SOCK SMELL DETECTED AFTER TAKEOFF. DISSIPATED ABOVE 600'. ON DESCENT ODOR RETURNED. DESCENDING THRU FL200. TROUBLESHOT AND DETERMINED APU TO BE SOURCE OF SMELL. APU CHANGED ON LP# 0825252SDR ASAA2018111646862Apu · unknownAPU FAILED TO START TWICE WITH FAULT MESSAGE 49-41249 (START CONVERTER UNIT SHOWS LOW BATTERY POWER). GROUNDED - YES. PERFORMED B737-900 FIM 49-60 TASK 801 AND 822. APU STARTED NORMAL. GROUND VERIFICATION IS GOOD. NO CURRENT FAULT NOTED.SDR UIEA2018111642612Control Valve · unknownREMOVE SURGE CONTROL VALVE AND INSTALL TROUBLESHOOTING SURGE CONTROL VALVE FOR TROUBLESHOOTING PURPOSES.(<P>REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW B767 AMM 49-53-01. PERFORMED SATISFACTORY OPS AND LEAK CHECK, NO DEFECTS NOTED.</P>)SDR IPXA2018111205834Tru · failedAPU FAULT LIGHT ILLUMINATED ON START ATTEMPT, OBSERVED EGT MAX 770 DEG. TROUBLESHOT IAW FIM 49-11-00-815-001. 103 & MINI FLAG 34 APPEARED & SUMMARY SHOWED LUR MESSAGE. A/C START CIRCUIT. R & R THE APU TRU IAW FIM 49-11-00-815-807-001.SDR ANCF201911080080Apu · unknownDURING PREFLIGHT PROCEDURES APU AUTOSHUTDOWN WAS SHOWN ON ECAM PAGES F/O & MAINTENANCE PERSONNEL FELT AND EXPLOSION ON THE OUTSIDE APU SECTION.SDR AALA2018110879010Apu · odorFLIGHT ATTENDANT REPORTED STRONG ELECTRICAL ODOR IN THE GALLEY AFTER TAKEOFF. THE AIRCRAFT WAS GROUNDED. DUE TO CHRONIC NATURE SOF EVENTS. REPLACED APU IAW JC 26L31049005. PERFORMED JC 26L00021002, AND 26L00021004. NO ODORS PRESENT.SDR JGVR2018110200001Inlet · corrodedBLENDED THREE AREA OF CORROSION ON THE APU INLET DEFLECTOR SCOOP. FOUND INLET/DEFLECTOR SCOOP NOT REPAIRABLE AND REPLACED WITH NEW.SDR AALA2018112109025Apu · odorSTRONG ODOR IN THE CABIN & FLIGHT DECK ON ARRIVAL. ODOR OF MUSTY SOCKS. THE AIRCRAFT WAS GROUNDED. COMPLIED WITH JC 26L00021001 AND FOUND APU AS SOURCE OF ODOR. RAN PACKS WITH ENGINE SOURCE WITH NO ODOR DETECTED. REPLACED THE APU IAW CARD 26L31049003. ALL SDR UIEA2018102702384Unknown · malfunctionedAPU 2 ATTEMPTS WOULD NOT START. INSPECTED AND CHECKED OIL QUANTITY. FOUND THE QUANTITY TO BE FULL. STARTED APU TWO TIMES IAW AMM 49-11-00. STARTED APU AT THE FIRST ATTEMPT BOTH TIMES. NO FAULTS NOTED AT THIS TIME. OK FOR SERVICE. CHECK FOR OIL LEAKS. NO LEAKS SDR AALA2018102649015Cooling Fan · leakingDURING DESCENT, A STRONG ODOR WAS DETECTED. ACCOMPLISHED ODOR PROCEDURE ON CHECKLIST, AFTER THE NR 1 PACK WAS TURNED OFF AND CROSS BLEED SHUTDOWN, DECREASED SIGNIFICANTLY. ODOR REPORTED IN FORWARD GALLEY AS WELL. REPLACED THE APU COOLING FAN ASSEMBLY IAW AMSDR UIEA2018102202317Unknown · malfunctionedAPU INOP. APU OPS CONDITION NORMAL.SDR AALA2018102499021Apu · odorDESCENDING OUT OF 20,000 FT, RECEIVED STRONG DIRTY SOCK ODOR IN THE COCKPIT, LASTING THOUGH SHUTDOWN AT GATE. ACCOMPLISHED JC 26L00021001, AND 26L00021002. FOUND THE SOURCE OF THE ODOR TO BE THE APU. REPLACED THE APU IAW CARD 26L31049005. OPS CHECKED GOOSDR AALA2018102329027Cooling Fan · leakingCABIN ODOR REPORT RECEIVED. THE AIRCRAFT WAS GROUNDED. FOUND SOURCE OF ODOR TO COME FROM THE APU COMPARTMENT, APU COOLING FAN LEAKING OIL. REPLACED THE APU COOLING FAN IAW AMM 49-52-51. LEAK AND OPS CHECKED GOOD.
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