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 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 IMay 19, 2019 · N809AW · Airbus A319132SDR 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 NORMMay 14, 2019 · Bombdr BD7001A11SDR 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>)Apr 28, 2019 · N1487A · Boeing 76731KSDR 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 @ 05Apr 28, 2019 · N1327A · Boeing 76737DSDR 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. MAINTApr 26, 2019 · N109UW · Airbus A320214SDR 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 ENGINESApr 25, 2019 · N633QS · Cessna 560XLSDR UIEA2019042303933Apu · malfunctionedAPU AUTOMATIC SHUTDOWN (NOTE: ON DEPARTURE/ENG START). (<P>PERFORMED OPERATIONAL CHECK OF APU PER AMM 49-11-01. OPS CHECK GOOD. </P>)Apr 23, 2019 · N1327A · Boeing 76737DSDR 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 CHApr 18, 2019 · N334QS · Cessna 680ASDR 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 SOUApr 10, 2019 · N560DR · Cessna 560XLSDR 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. SPEEApr 8, 2019 · N433AS · Boeing 737990ERSDR 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>)Apr 3, 2019 · N1373A · Boeing 76731KSDR 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.Apr 2, 2019 · N415AW · Cndair CL6002B19SDR 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.Mar 5, 2019 · N508AY · Airbus A321231SDR 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 Mar 5, 2019 · N508AY · Airbus A321231SDR 2019F00136Truss Fitting · corrodedAPU TRUSS MOUNT (FLANGE) CORROSION. ACCOMPLISHED ENGINEERING LETTER DQ18604M1 DATED FEB. 26, 2019; 680-0144 (N397QS) APU TRUSS MOUNT (FLANGE) CORROSION.Feb 28, 2019 · N397QS · Cessna 680CESDR 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 SOURCEFeb 27, 2019 · N291AY · Airbus A330243SDR UIEA2019022603385Apu · unknownAPU WOULD NOT START 2 ATTEMPTS. PERFORMED AN OPS CHECK OF THE APU STARTER, NO FAULTS NOTED IAW AMM 49-11-00.Feb 25, 2019 · N1499A · Boeing 767328SDR 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>)Feb 10, 2019 · N1439A · Boeing 76733ASDR 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>)Feb 10, 2019 · N1049A · Boeing 76736NSDR HALA2019020800050Fault Message · false activationETOPS SIGNIFICANT SYSTEM - APU FAULT. // OPERATED APU PER AMM 49-00-00 PERFORMED SYS TEST NO FAULTS NOTED OK FOR SVC.Feb 7, 2019 · N361HA · Airbus A330243SDR 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 OPSJan 28, 2019 · N448SW · Cndair CL6002B19SDR 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 26L00Jan 4, 2019 · N766US · Airbus A319112SDR 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 26LJan 3, 2019 · N766US · Airbus A319112SDR 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 TIMEJan 3, 2019 · N1217A · Boeing 767375SDR 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 VDec 30, 2018 · N360HA · Airbus A330243SDR 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>)Dec 30, 2018 · N1217A · Boeing 767375SDR 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>)Dec 30, 2018 · N1409A · Boeing 767306SDR 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 Dec 25, 2018 · N966DL · Doug MD88SDR 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 ACTDec 21, 2018 · N392HA · Airbus A330243SDR 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 Dec 10, 2018 · N903NK · Airbus A320271NSDR 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 21-00-00-615-003Dec 10, 2018 · N645NK · Airbus A320232SDR 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 ADec 8, 2018 · N538AS · Boeing 737890SDR 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.Dec 3, 2018 · N978QS · Cessna 750SDR 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 CNov 24, 2018 · N667AW · Airbus A320232SDR 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. FOUNDNov 24, 2018 · N345NW · Airbus A320212SDR 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 # Nov 20, 2018 · N903NK · Airbus A320271NSDR 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>)Nov 19, 2018 · N1487A · Boeing 76731KSDR 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# 0825252Nov 15, 2018 · N345NW · Airbus A320212SDR 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.Nov 14, 2018 · N457AS · Boeing 737990ERSDR 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>)Nov 14, 2018 · N1181A · Boeing 7673Y0SDR 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.Nov 9, 2018 · N336UP · Boeing 76734AFSDR ANCF201911080080Apu · unknownDURING PREFLIGHT PROCEDURES APU AUTOSHUTDOWN WAS SHOWN ON ECAM PAGES F/O & MAINTENANCE PERSONNEL FELT AND EXPLOSION ON THE OUTSIDE APU SECTION.Nov 8, 2018 · N980AV · Airbus A320214SDR 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.Nov 5, 2018 · N647AW · Airbus A320232SDR JGVR2018110200001Inlet · corrodedBLENDED THREE AREA OF CORROSION ON THE APU INLET DEFLECTOR SCOOP. FOUND INLET/DEFLECTOR SCOOP NOT REPAIRABLE AND REPLACED WITH NEW.Nov 2, 2018 · N305QS · Cessna 680CESDR 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 Oct 31, 2018 · N182UW · Airbus A321211SDR 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 Oct 26, 2018 · N1511A · Boeing 767383SDR 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 AMOct 22, 2018 · N768US · Airbus A319112SDR UIEA2018102202317Unknown · malfunctionedAPU INOP. APU OPS CONDITION NORMAL.Oct 20, 2018 · N1439A · Boeing 76733ASDR 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 GOOOct 18, 2018 · N663AW · Airbus A320232SDR 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.Oct 16, 2018 · N679AW · Airbus A320232
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