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 UIEA2017081001452Apu · malfunctionedAPU FAILED TO START AFTER LANDING, TWO ATTEMPTS, APU FAULT ON BOTH, BITE CHECKED APU ECU, NO HARD FAULTS. OPS CHECKED APU IAW 49-00-00 CHECKS GOOD.Aug 10, 2017 · N649GT · Boeing 767375SDR P5CA2017080900256Apu · faultedAPU FAULT ON LANDING. DID NOT ATTEMPT SECOND START. ACCOMPLISHED ECU BITE TEST & SELF TESTED OK. PERFORMED ACTUAL CHECK NORMAL, APU START NORMAL IAW AMM 49-61-05-742-045.Aug 9, 2017 · N643GT · Boeing 7673JHFSDR UIEA2017080901440Ecu · malfunctionedWHILE PERFORMING APU MAINTENANCE, THE APU INDICATORS FOR EGT AND RPM WERE ZERO WHILE APU WAS RUNNING. REMOVED AND REPLACED ECU IAW AMM 49-61-05, OPS CHECKED NORMAL.Aug 9, 2017 · N1217A · Boeing 767375SDR CALA2017080702465Unknown · odorDURING TAXI INBOUND, STARTED THE APU. A STRONG ELECTRICAL BURNING ODOR, WITH APU OFF, NO ODOR. PERFORMED VISUAL INSPECTION OF TAILCONE AREA AND ADJACENT CONTROL SURFACES NO EVIDENCE OF HEAT DAMAGE. INSPECTED APU, NO OBVIOUS DAMAGE NOTED. RAN APU AND LOOKAug 7, 2017 · N33203 · Boeing 737824SDR IPXA2017080720216Apu · smokeAPU PRODUCED SMOKE IN CABIN , APU FAULT AND AUTO SHUTDOWN INDICATED. R & R THE APU ASSY IAW TC 9112.Aug 4, 2017 · N260UP · Doug MD11FSDR UIEA2017072901375Indicator · looseFOUND APU CYCLE COUNTER INDICATOR LOOSE NEAR E6 IN THE AFT CARGO BAY. THE APU CYCLE COUNTER INDICATOR WAS REMOVED AND REPLACED IAW AMM 49-72 00, REV 121. CHECKED IAW AMM 49-72-00, REV 121.Jul 31, 2017 · N1361A · Boeing 76731BSDR AALA201708019026Apu · odorFLIGHT ATTENDANT COMPLAINING ABOUT OILY ODOR IN ACFT. RAN APU AND ODOR WORSENED WITH APU BLEED AND PACKS RUNNING. AIRCRAFT WAS GROUNDEDJul 28, 2017 · N601AW · Airbus A320232SDR IPXA2017072819845Warning Message · false activationAPU BITE MAINT MESSAGE DISPLAYED. MX MESSAGE CLEARED IAW FIM 49-11-00Jul 27, 2017 · N320UP · Boeing 76734AFSDR UIEA2017072801344Apu · malfunctionedAPU SHUTDOWN UNCOMMANDED ON RAMP. PERFORMED BITE TEST OF APU CONTROL UNIT IAW AMM 49-61-05, 49-61-05-742-027. NO FAULTS FOUND.Jul 25, 2017 · N641GT · Boeing 76738ESDR UIEA2017072501305Warning Light · illuminatedAPU INOPERATIVE FAULT LIGHT ILLUMINATED.Jul 25, 2017 · N661GT · Boeing 76736NSDR UIEA2017072301275Apu · malfunctionedAPU FAULT, APU WOULD NOT START. APU STARTED ON FIRST ATTEMPT IAW AMM 49-11-00 PERFORMED APU ECU SELF AND BITE TEST IAW AMM 49-61-05. PREVIOUS FAULT EGT 2 CIRCUIT AND MINI FLAG. NO DEFECTS NOTED. MEMORY CLEARED FAULTS REMOVED. OPS CHECKED GOOD IAW AMM 49-1Jul 24, 2017 · N1217A · Boeing 767375SDR VQIA2017111400056Apu · odorSTRANGE CHEMICAL ODOR AND FUMES IN CABIN AND FLT DECK WHEN PACKS SELECTED ON. THE SOURCE OF THE ODOR WAS ISOLATED TO THE APU PNEUMATIC SYSTEM, AND THE ACFT WAS RETURNED TO SERVICE.Jul 23, 2017 · N521VA · Airbus A319112SDR UIEA2017072401288Warning Light · illuminatedAPU FAULT LIGHT ILLUMINATED WHEN START ATTEMPTED APU DID NOT START. DID BITE CHECK OF ECU AND STARTED APU NORMALLY IAW AMM 49-11-00 FAULT TREE 958 FIM OPS CHECKED GOOD.Jul 21, 2017 · N1997A · Boeing 76733ASDR ASAA2017071821413Apu · malfunctionedWHILE TRYING TO START APU FAULT LIGHT ILLUMINATED. MAINTENANCE MESSAGE 49-41012. NO APU ROTATION SHUTDOWN. ACFT GROUNDED. ACCOMPLISHED FIM 49-40, TASK 803 PERFORMED APU BITE CHECKED VERIFIED FAULT CODE STARTED APU 8 TIMES OVER 5 HR PERIOD OPS CHECKED GOOD Jul 18, 2017 · N534AS · Boeing 737890SDR UIEA2017072101256Check Valve · wornCHECK VALVE WORN ON APU. REMOVED AND REPLACED APU CHECK VALVE IAW AMM 36-11-11. CHECK VALVE OPERATES AS DESIGNED.Jul 17, 2017 · N1321A · Boeing 767306SDR ASAA2017071621389Fault Light · false activationON APU START, THE APU AMBER FAULT LIGHT ILLUMINATED, WITH NO START FAULT MESSAGE 49-15004. INLET DOOR SHUTDOWN. ACFT GROUNDED. PERFORMED MULTIPLE SUCCESSFUL GROUND STARTS IAW AMM 49-11-00-710-801. DURING OPERATION, NO FAILURES FOUND IN CURRENT STATUS OF AJul 16, 2017 · N512AS · Boeing 737890SDR AALA201707139007Apu · odorAIRCRAFT EXPERIENCED A CABIN ODOR EVENT. ISOLATED TO THE APU. FOUND THE AVIONIC EQUIPMENT VENLATION FILTER DIRTY, REPLACE THE FILTER IAW AMM.Jul 12, 2017 · N810AW · Airbus A319132SDR UIEA2017071201191Charger · inoperativeREPLACED THE APU BATTERY IAW RESULTS STEP 4. REFERENCE EO 6749A003-CS. REMOVED AND REPLACED THE BATTERY CHARGER IAW EO 6749A003-CS OPS 4062.Jul 8, 2017 · N1709A · Boeing 767375SDR UIEA2017063001077Fault Light · false activationAFTER APU START, A FAULT ILLUMINATED LANDING. NO FAULTS FOUND AFTER OPS CHECK IAW AMM 49-11-00Jun 29, 2017 · N1997A · Boeing 76733ASDR UIEA2017062001043Apu · underservicedAPU DID NOT START AFTER LANDING. SERVICED THE APU IAW AMM 12-13-04, APU OPS CHECKED NORMAL IAW AMM 49-11-00.Jun 20, 2017 · N1997A · Boeing 76733ASDR ASAA2017061721115Apu · malfunctionedAPU INOPERATIVE. ACFT GROUNDED. PERFORMED BITE AND FOUND FAULTS 49-41011, 49-11019, 49-11021 AND 49-61223. PERFORMED FIM 49-40, TASK 802, 49-10, TASK 801, 49-10, TASK 802, AND 49-60, TASK 812. ALL CHECKED GOOD. AFTER STARTING APU IAW FIM TASKS AND RECHECKJun 17, 2017 · N529AS · Boeing 737890SDR ASAA2017061521082Apu · false indicationAPU MAINTENANCE LIGHT ILLUMINATED AFTER APU STARTED NORMALLY. APU WAS SHUT DOWN NORMALLY. ACFT GROUNDED. CHECKED OIL LEVEL, FOUND FULL. RESET APU AND OPS CHECK START NORMAL, OPS NORMAL IAW 49-11-00. APU OK FOR SERVICE.Jun 15, 2017 · N493AS · Boeing 737990ERSDR YENA201706130492Apu · odorAPU INOPERATIVE DIRTY SOCK ODOR. WHILE ON THE GROUND WITH APU ON THE WHOLE CABIN SMELLED. THE ODOR STOPPED WHEN THE ENGINES WERE RUNNING AND THE APU WAS SHUT OFF. ODOR CAME BACK IN THE DESCENT WITH APU OFF. FROM 5000-1000 FT. R & R THE APU IAW AMM 49-11-1Jun 13, 2017 · N559JB · Airbus A320232SDR HALA2017060900145Apu · malfunctionedAPU GENERATOR FAULT ON APU START. TWO START ATTEMPTS UNSUCCESSFUL. PERFORMED TSM 24-23-00-810-816-A. APU TESTED OK. RAN MULTIPLE TIMES & USED TO RUN NR 1 ENGINE. ALL OPS NORMAL. OK FOR SERVICE.Jun 8, 2017 · N392HA · Airbus A330243SDR ASAA2017060720977Shroud · crackedAPU DRAIN SHROUD APPEARS CRACKED ON TOP RADIUS/ FILLET. GROUNDED - YES. CONFIRMED CRACK , REMOVED AND REPLACED APU FUEL, HYD DRAIN MAST, REF B737-800 AMM 28-25-07-401Jun 7, 2017 · N583AS · Boeing 737890SDR P5CA2017060900158Totalizer · malfunctionedAPU HOUR METER INOPERATIVE. REPLACED THE APU TIME TOTALIZER PFR, APU STARTING, OPERATES AND SHUT DOWN. ALL GOOD IAW AMM 49-11-00.Jun 7, 2017 · N644GT · Boeing 7673JHFSDR GTIA2017060301960Apu · odorREAR FA NOTICED A LIGHT ODOR DURING DESCENT, UNDER 10,000 FT. THE ODOR WAS MUCH STRONGER ON GROUND AFTER LANDING. ONLY IN REAR OF AIRCRAFT AND WAS A POSSIBLE A SMOKE, BURNING ODOR. APPLIED TSM 05-50-00-810-831-A. FOUND APU SOURCE OF CABIN ODOR. PERFORMED A Jun 3, 2017 · N607NK · Airbus A320232SDR ASAA2017060120953Warning Light · intermittentRECEIVED AN APU FAULT LIGHT ON START UP, NO ROTATION. FAULT MESSAGE 49-41012. ACFT GROUNDED. PERFORMED FIM 49-40 TASK 803 , NO FAULT ON RESTART, DEEMED TO BE INTERMITTENT FAULT.Jun 1, 2017 · N570AS · Boeing 737890SDR UIEA2017052200825Valve · failedAPU FAULT AND AUTO SHUTDOWN, APU FAULT ON ECU GEN FILTER. FOLLOWED FIM TASK 49-11, FAULT TREE 969. FOUND SCAVENGE FILTER ELEMENT BAD. R & R IAW AMM 49-29-03-004 001. OPS CHECKED GOOD. INSPECTED MAGNETIC CHIP DETECTOR, NO METAL FOUND IAW 49-27-04-206-0014. May 22, 2017 · N661GT · Boeing 76736NSDR AALA201705199019Apu · fireDURING TAXI IN, THE APU FAIL EICAS MESSAGE. GROUND PERSONEL REPORTED FIRE FROM APU. REPLACED APU ASSEMBLY. AIRCRAFT WAS GROUNDED.May 18, 2017 · N959UW · Emb ERJ190100IGWSDR SIMA20170512001Apu · failedVERY STRONG ODOR OF UNBURNED FUEL IN COCKPIT DURING STARTING APU. HAPPENED MULTIPLE FLIGHTS. FOUND OIL LEAKING FROM AFT APU LUBRICATION LINE. VERIFIED ODOR TO BE OIL FROM APU. REMOVED AND REPLACED APU, OPS AND LEAK CHECKED GOOD IAW WC 49-800-05.May 12, 2017 · N939AE · Emb EMB145LRSDR AALA201704289001Apu · smokeINBOUND CREW REPORTED AFT CABIN SMOKE AND FUMES PASSING THROUGH 6,000 FT. PERFORMED TROUBLESHOOTING AND FOUND APU AS SOURCE OF ODOR. REMOVED AND REPLACED APU. AIRCRAFT WAS GROUNDED.Apr 27, 2017 · N125UW · Airbus A320214SDR AALA201704269010Apu · odorSTRONG ODOR NOTED BY CABIN CREW, PASSENGERS, AND COCKPIT CREW. SMELLS LIKE BURNED CRAYONS. REMOVED AND REPLACED THE APU.Apr 24, 2017 · N738US · Airbus A319112SDR ASAA2017041920490Apu · malfunctionedAPU FAULT LIGHT ILLUMINATED ON 1ST APU START ATTEMPT AT FL360. RAN QRH , FAULT LIGHT WENT OUT WITHIN 5 MINS. ACFT GROUNDED. APU BITE TEST SHOWS MSG 49-31171 FUEL CONTROL UNIT FLOW DISAGREES WITH COMMAND. APU DID START ON 2ND ATTEMPT IN FLIGHT PER SEAMC. PERApr 19, 2017 · N566AS · Boeing 737890SDR AALA201703309021Apu · odorCABIN AND FLIGHT DECK ODOR, DISAPATED INFLIGHT AND RETURNED STRONG DURING DESCENT. ACCOMPLISHED J/C 26L00021002, APU ODOR IN CABIN, NO LEAKS OR DISCREPANCIES NOTED. ACCOMPLISHED J/C 26L00021004 ECS DECONTAMINATION.Mar 29, 2017 · N601AW · Airbus A320232SDR UIEA2017031600355Warning Message · false activationAPU FAULT MESSAGE. ACCOMPLISHED APU ECU BITE TEST AND TESTED OK. RESET SUCCESFUL IAW AMM 49-61-05 AND ACCOMPLISHED AN APU OPERATIONAL CHECK IAW AMM 49-11-00 AND STATUS AND OPERATED NORMAL.Mar 16, 2017 · N645GT · Boeing 767324SDR DALA2017031602154Unknown · odorPERFORMED AN AIR TURN BACK DUE TO A STRONG ACRID ODOR AFTER TAKE OFF. DECLARED EMERGENCY. MAINTENANCE FOUND APU INLET DOOR CRACKED. CLEANED AND REPLACED APU INLET DOOR ASSEMBLY. NO ODOR FROM ENGINES, HOWEVER, ODOR WHEN RUNNING APU. PERFORMED FULL DUCT BURNOUMar 12, 2017 · N925DN · Doug MD9030SDR HALA2017031000058Apu · faultedAFTER IN-FLIGHT APU START RECEIVED AN ECAM APU FAULT, AFTER PUSHING THE MASTER SWITCH TO SHUT DOWN APU. TROUBLESHOT APU IAW TSM 49-91. FAULTED LUBE PUMP FILTER AND GEN SCAV FILTER. NO METAL DEBRIS FOUND IN SCAV FILTER OR CHIP DETECTOR. NO DPI POPPED. REPLACEMar 10, 2017 · N385HA · Airbus A330243SDR WX0A073230Apu · leakingMUSTY ODOR FROM AIR CONDITIONING SYSTEM. PERFORMED TSM 21-00-00-810-801-A, FOUND OIL AT THE APU AIR PLENUM DUCT. FOUND NO OIL CONTAMINATION INTO THE PACKS. PERFORMED DECONTAMINATION OF ECS IAW AMM 21-00-00-615-001. NO FURTHER DEFECTS NOTED. REMOVED AND REPLMar 6, 2017 · N226NV · Airbus A320214SDR F3LA2017033100093Apu · leakingODOR OF DIRTY SOCKS IN THE FLIGHT DECK AND CABIN. ALSO, A SMOKEY HAZE IN CABIN. ENGINE NOT RUNNING WHEN ODOR AND HAZE APPEARED. WHEN APU AND PACKS AND BLEED OFF, ODORS AND HAZE DISAPPEARED. REMOVED AND REPLACED THE APU IAW MP49111-01 AND MP49111-02. OPS CFeb 26, 2017 · N902F · Airbus A319112SDR ASAA2017022619950Warning Light · false activationAPU FAULT LIGHT DURING START. ACFT GROUNDED. STARTED AND OPERATED APU. APU STARTS AND OPERATES NORMALLY. PERFORMED FIM 49-55 TASK 801 E(1) THRU (6). NO FAULTS FOUND. IAW FIM, SOME FLAME IN EXHAUST DURING START IS NORMAL DURING CONSECUTIVE STARTS. NO CURRFeb 26, 2017 · N568AS · Boeing 737890SDR 2017F00049Truss · corrodedAPU TRUSS MOUNT (FLANGE) CORRODED.Feb 20, 2017 · N307QS · Cessna 680CESDR YENA201701210044Apu · odorFLIGHT ATTENDENTS AND PAX SMELLED A STRONG FOUL ODOR PASSING THROUGH 10,000 FT DURING DESCENT; FOUND APU TO BE THE SOURCE OF THE ODOR. R & R THE APU.Jan 21, 2017 · N715JB · Airbus A320232SDR AALA20170118020Unknown · malfunctionedAIRCRAFT NOT GROUNDED. DURING TAKEOFF FLIGHT CREW NOTED THAT APU FAILED TO SHUT DOWN AS SELECTED. ABORTED TAKEOFF. MAINTENANCE ACCOMPLISHED FIM 4910 TASK 801 DUE TO FAULT CODE 49-11019. ACCOMPLISHED APU START AND SHUT DOWN SEVERAL TIMES. SYSTEM CHECKS NORMAL.Jan 16, 2017 · N913AN · Boeing 737823SDR P5CA2017011200013Rectifier · failedFOUND APU TRU FUNCTION FAILED. REPLACED APU START TRANSFORMER RECTIFIER UNIT IAW AMM 24-32-04-004-012, 24-32-04-404-003 REV.120. & PERFORMED TEST OF THE APU START TRU INSTALLATION, RESULT WAS SATISFACTORY IAW AMM 24-32-04-404-003 REV.120 .Jan 12, 2017 · N643GT · Boeing 7673JHFSDR P5CA2017011100007Control Unit · malfunctionedAPU AUTO SHUTDOWN. REMOVED AND REPLACED APU CONTROL UNIT IAW AMM 49-61-05. OPS CHECKED OK.Jan 11, 2017 · N647GT · Boeing 767306SDR DXTA2016123006354Apu · odorON TAKEOFF THERE IS A STRONG DIRTY SOCK ODOR WHICH SEEMS TO DISSIPATE IN FLIGHT. THE APU IS OPERATING ON TAKEOFF UNTIL ABOUT 1000 AGL. ON ARRIVAL MAINTENANCE SAID THEY CAN STILL SMELL ODOR. REPLACED APU WITH AN INSPECTED UNIT AND PERFORMED SATISFACTORY OPEDec 30, 2016 · N777QS · Bombdr BD1001A10SDR ASAA2016112018767Warning Light · false activationDURING APU START THE APU FAULT LIGHT ILLUMINATED. ACFT GROUNDED. FOUND FAULT 49-41254 WHILE PERFORMING APU BITE, IAW FIM 49-40 TASK 821. CHECK APU BITE CURRENT STATUS FOR FAULT. FAULT NOT FOUND UNDER CURRENT STATUS, IAW FIM TASK 49-40 821, FAULT INTERMITTENTNov 20, 2016 · N477AS · Boeing 737990ERSDR GTIA2016111601667Apu · contaminatedFUME EVENT, NOTED INITIALLY ON GROUND. PERFORMED TSM 05-50-00-810-831-A, FOUND CAUSED TO BE APU BLEED SYSTEM. IAW TSM 49-00-00-810-921-A; PERFORMED EXTERIOR INPECTION OF APU COMPARTMENT. FOUND OIL LEVEL SLIGHTLY BELOW FULL, OIL CAP SECURED & SCUPPER WAS CLEANov 16, 2016 · N502NK · Airbus A319132SDR AALA20161114024Apu · leakingDURING TAXI IN A HAZE GRADUALLY FILLED THE CABIN. MAINTENANCE FOUND OIL IN APU AIR INLET. REMOVED AND REPLACED APU. AIRCRAFT WAS GROUNDED. (OPEN)Nov 14, 2016 · N966TW · Doug DC983
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