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 C2XA01CL047Apu · failedCLE FLIGHT 3683 THE CREW REPORTED THE APU FAILED IN FLIGHT. ATTEMPTED RESTART BUT IT WOULD NOT CONTINUE TO RUN. MAINTENANCE PERFORMED OPERATIONAL CHECKS ON APU AND NO DEFECTS WERE NOTED. OPERATIONAL CHECKS WERE GOOD. THE AIRCRAFT WAS RELEASED FOR SERVICE.Mar 5, 2001 · N14514 · Emb EMB135LRSDR AALA20010380Apu · leakingDFW - FLT 1507 - EN ROUTE DFW-YVR, FLIGHT ATTENDANT DETECTED HEAVY SMOKE IN CABIN. DECLARED EMERGENCY. RETURNED DFW, AND LANDED WITHOUT FURTHER INCIDENT. REPLACED APU. REPLACED ACM HEAT EXCHANGERS. REPLACED WATER SEPARATORS BAGS. ACCOMPLISHED PACK BURNOUMar 3, 2001 · N76200 · Doug DC983SDR AU010197Gcu · failed(AUS) APU GENERATOR CONTROL UNIT (GCU) FAULTY. INVESTIGATION FOUND THETOP COVER COOLING HOLES BLOCKED WITH DUST.Feb 26, 2001 · Boeing 767338SDR COMA0160287Smoke · detectedSMOKE COMING FROM APU INLET WHEN APU WAS SHUT DOWN. INSPECTED APU AND FOUND NO DEFECTS.Feb 26, 2001 · N995CA · Cndair CL6002B19SDR COMA0160273Apu · malfunctionedAPU SHUT DOWN IN FLIGHT. SECURED APU AND DEFERRED MAINTENANCE PER MEL.Feb 20, 2001 · N959CA · Cndair CL6002B19SDR USAABB01011Actuator · faultyJAX - FLT 880 - EN ROUTE FLL-PIT, WITH THE LEFT IDG ON MEL AND THE APU OPERATING, THE CREW RECEIVED INDICATIONS THAT THE APU HAD PERFORMED AN AUTO-SHUTDOWN. THE CREW TRIED UNSUCCESSFULLY TO RESTART THE APU. THE FLIGHT DIVERTED TO JAX AND LANDED WITH NO FURTHFeb 17, 2001 · N606AU · Boeing 757225SDR USAASB01037Apu · malfunctionedBWI- FLT 2993 - EN ROUTE FROM BOS TO FLL, AT FL350, THE APU SHUTDOWN. THE NR 2 CSD/GENERATOR WAS ALREADY ON MEL SO THE CREW DECLARED AN EMERGENCY AND BEGAN TO DIVERT TO BWI. AT FL240, THE APU WAS RESTARTED AND THE EMERGENCY WAS CANCELED. FLIGHT CONTINUED TO Feb 4, 2001 · N259AU · Boeing 737201SDR 2001UALA00043Pin · failedDURING CLIMBOUT BUT MORE NOTICEABLE ON DESCENT A SMELL LIKE METAL ON METAL WAS SMELLED THROUGHOUT THE AIRPLANE. *S/D* APU REPLACED 21 JAN DUE TO METAL FOUND ON CHIP DETECTORS. APU ALSO TOOK 2 QTS OIL. METAL CONFINED TO GEARBOX. APU DISASSEMBLED TO REPLACJan 19, 2001 · N768UA · Boeing 777222SDR AALA20002121Apu · leakingORD - FLT 576 - EN ROUTE ORD-RST AT GATE, SHORTLY AFTER STARTING ENGINES, CABIN FILLED WITH SMOKE. SHUTDOWN ENGINES. REPLACED APU. SYSTEM UNDER INVESTIGATION. (M)Dec 19, 2000 · N1451N · Fokker F28MK0100SDR AALA20002120Apu · leakingDFW - FLT 1196 - EN ROUTE DFW-CVG AT GATE, SHORTLY AFTER STARTING ENGINES, CABIN FILLED WITH SMOKE. SHUT DOWN ENGINES. REPLACED APU. SYSTEM UNDER INVESTIGATION. (M)Dec 19, 2000 · N1402K · Fokker F28MK0100SDR AWXA0001099Structure · crackedRIVETS PULLED THROUGH ON APU RAM AIR INTAKE DUCT; ANGLE BROKEN OFF AT END. REMOVED Z ANGLE, CUTOUT DAMAGED AREA; FABED Z ANGLE AND REPAIR PARTS; INSTALLED Z ANGLE AND REPAIR PARTS IAW SRM 51-40-02, 51-70-13 FIG 1, DWG 65-50938Dec 15, 2000 · N334AW · Boeing 7373Y0SDR CA010105008Apu · faulty(CAN) A/C 415, DEC 14/2000, FLT 3598, YEG, LOG SEQUENCE 0291486. ON TAKEOFF FROM YEG, AFT CARGO SMOKE ECAM MESSAGE APPEARED & A BURNING SMELL NOTICED IN CABIN & COCKPIT. EMERGENCY DECLARED & A/C RETURNED TO YEG. CFR DID A VISUAL INSP AFTER LDG, NO EVIDENCE OF Dec 14, 2000 · Airbus A320211SDR C2XA00BT097Gcu · faultyEWR-CREW REPORTED SMELL OF BURNING PLASTIC NOTED IN COCKPIT & CABIN DURING TAXIOUT. APU GEN. DROPPED OFF LINE & SMELL GOT WORSE SIMULTANEOUSLY. MX REMOVED & REPLACED APU GEN.(P/N23080013A) & APU GEN. CONTROL UNIT (P/N51525014A) GEN. STILL INOPERATIVE. A/C RELEDec 8, 2000 · N13929 · Emb EMB145ERSDR DL757002212Apu · odorBOTH ENGINES WERE SLOW TO START AND DURING THE START AFT CABIN GOT HEAVY EXHAUST ODORS. FUMES WERE IN THE CABIN UNTIL THE PACKS WERE TURNED ON. FOUND SLIGHT ODOR WHILE OPERATING APU. NO FUMES NOTED WITH APU SHUT DOWN AND AIR STARTERS USED. FWD APU TO MCO ANov 12, 2000 · N606DL · Boeing 757232SDR COMA0060830Apu · odorSTRONG BURNING SMELL IN COCKPIT. REPLACED THE APU.Oct 16, 2000 · N914CA · Cndair CL6002B19SDR C2XAOOBT067Apu · smokeEWR-CREW REPORTED ON APU START CABIN FILLED UP WITH SMOKE. LAV SMOKE DETECTOR ILLUMINATED. MX TROUBLESHOT AND FOUND FAULTY APU..A/C RELEASED MEL 49-00-00 CAT C CONTROL NUMBER 001068. A/C RETURNED TO SERVICE. SDR OPEN.Sep 27, 2000 · N14938 · Emb EMB145SDR VNAA0009005Apu · odorAS FLIGHT 4169 DEPARTED THE CREW SMELLED AN UNUSUAL ODOR IN THE COCKPIT AND BECAME LIGHT HEADED. THE CREW IMMEDIATELY RETURNED TO THE FIELD AND PROCEEDED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT AND DEFERRED THE AUXILARY POWER UNIT, FLIGHT 4169 THEN DSep 11, 2000 · N441JS · Dorner DO328100SDR CA000830023Apu · failed(CAN) THE FLIGHT CREW REPORTED THE SMOKE JUST PRIOR TO LANDING, SMOKE ODOR DETECTED, WHEN THE AIR CONDITIONING PACKS WERE TRANSFERRED FROM THE ENGINE TO THE APU PROCEEDED TO DESTINATION AIRPORT (CVG) DECLARED EMERGENCY. THE APU WAS REPLACED.Aug 15, 2000 · Cndair CL6002B19SDR 20000831SH014Screen · missingDURING AIRCRAFT INSPECTION FOUND PART OF APU INLET SCREEN MISSING PART OF ITS WIRE MESH. SUSPECTED PART WAS INGESTED BY APU DURING OPERATION. BORESCOPED APU INLET COMPRESSOR AND DAMAGE TO LEADING EDGES OF ALL THE BLADES WAS FOUND. THE APU INLET SCREEN IS THAug 13, 2000 · N922JW · Amd FALCON900SDR CA000901009Apu · malfunctioned(CAN) NR 2 AIR CONDITIONING PACK CONTAMINATED CAUSING SMELL IN CABIN. APU REPLACED. APU FUNCTION CHECKED AND NO SIGN OF SMELL.AIRCRAFT RETURNED TO SERVICE.Aug 12, 2000 · Bac 146200ASDR CA000830022Apu · failed(CAN) THE SMOKE TOILET CAUTION MESSAGE DISPLAYED DURING FLIGHT, ACCOMPANIED WITH SMOKE ODOR AND HAZE IN THE CABIN.INITIAL REPORT FOUND NO DISCREPANCY, SECOND REPORT RESULTED INTO AN APU REPLACEMENT.Aug 1, 2000 · Cndair CL6002B19SDR DLM88001218Apu · smokeAIRCRAFT DIVERTED INTO ELP DUE TO HOT SMELL AND FUMES IN CABIN AND SMOKE DETECTOR GOING. MAINTENANCE FERRIED AIRCRAFT TO DFW. REPLACED APU AND PERFORMED OPN. 5088 DUCT BURNOUT.Jun 27, 2000 · N964DL · Doug MD88SDR CALA0000950Apu · leakingTHE CABIN AND COCKPIT FILLED WITH SMOKE WHILE IN CRUISE AT 37,000 FT, EN ROUTE FROM SJC TO IAH. EMERGENCY PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT WAS DIVERTED TO SAT WHERE IT LANDED SAFELY. MAINTENANCE FOUND COOLING FAN WHERE IT ATTACHES TO GEARBOX LEJun 21, 2000 · N14831 · Doug DC982SDR DL72S001050Line · damagedEXCESSIVE SMOKE ON LANDING IN CABIN. SUSPECT RT PACK, DURING APU START. REPLACED OIL TANK VENT LINE ON APU.May 29, 2000 · N527DA · Boeing 727232SDR QXEA0001191Apu · overservicedPDX- SMELL OF SMOKE OR BURNING OIL IN THE COCKPIT AND CABIN AREA. FOUND APU OIL OVER SERVICED, DRAINED TO PROPER LEVEL. REMOVED AND REPLACED WATER SEPARATORS. GROUND RAN AIRCRAFT, NO SMELL OF SMOKE OR BURNING OIL. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNEMay 7, 2000 · N483US · Fokker F28MK4000SDR HNAA0000035Apu · smokeAFTER PUSH BACK AIRCRAFT CABIN FILLED WITH SMOKE. AIRCRAFT RETURNED TO GATE. IT WAS DETERMINED THAT THE SMOKE WAS COMING FROM THE APU BLEED SYSTEM. THE APU WAS MEL''D.Apr 22, 2000 · N908HA · Dhav DHC8102SDR USAASB00106Csd · leakingRDU - FLT 2726 - ON CLIMB-OUT FROM RDU, AT APPROXIMATELY 4,000 FT, THE LEFT BUS OFF LIGHT ILLUMINATED AND THE APU AUTO SHUTDOWN. WITH THE NR 1 CSD PRESENTLY ON MEL, DUE TO LEAK AT THE CSD SERVICING QUICK DISCONNECT FITTING, AND THE APU NOW INOPERATIVE (RESTARApr 6, 2000 · N248US · Boeing 737201SDR AWXA0000146Apu · fireSTARTED APU ON DESCENT, APU FIRE LIGHT AND BELL SOUNDED APPROX 3 MINUTES LATER, PULLED HANDLE AND DISCHARGED BOTTLE, FIRE LIGHT WENT OUT. INSPECTED APU FOR DAMAGE. FOUND EGT PROBE AND HARNESS BURNED, PLACED ON MEL. NO HISTORY 120 DAY SNAPSHOT RECOMMENDATIONMar 21, 2000 · N335AW · Boeing 7373U3SDR CA000313011Apu · failed(CAN) TOILET SMOKE CAUTION MESSAGE IN FLIGHT. F/A REPORTED SMOKE IN CABIN. MAINT REPORTED AFTER GROUND RUN OF ENG AND APU SMOKE COMING FROM APU INTAKE DUCT. ALSO FOUND SMOKE COMING FROM APU ENCLOSURE.Mar 13, 2000 · Cndair CL6002B19SDR VJ1R2000001Duct · failedSUNDSTRAND AUXILIARY POWER UNIT, P/N 160371-100, MODEL T62-T40C-7D, S/N 807301. HOBBS AT 3,384. EVENTS AT 1,643. EXPERIENCED EXHAUST DUCT FAILURE. DUCT, P/N 340300-9, TSN: 8,429.7 HOURS. AS1251ED. SOLAR T62-T40C-7D 'ENGINE AND EQUIPMENT' DATED SEPT 1981Feb 2, 2000 · N150TX · Amd FALCON50MYSTSDR COMA9960756Apu · smokeFIRE DEPARTMENT NOTIFIED CREW OF WHITE SMOKE COMING FROM THE RIGHT HAND ENGINE AREA. CREW REPORTED ALL INDICATIONS IN COCKPIT WERE NORMAL. CREW HAD JUST STARTED THE APU. INSPECTION OF APU AND ENGINE FOUND NO PROBLEM. AIRCRAFT RETURNED TO SERVICE.Dec 11, 1999 · N783CA · Cndair CL6002B19SDR TWAA0000505Deflector · corrodedDURING CHECK-C MAINT, FOUND CORROSION IN 3 EA PLACES AROUND APU WATER DEFLECTOR, STA 1338. REMOVED CORROSION AS REQUIRED PER TWA SPM 6-80-01. TREATED AND PRIMED PER SRM 51-10-3, PAGE 16 AND 17. REMOVED AND REINSTALLED WATER DEFLECTOR PER SPM 6-70-01, PAGE 4Dec 6, 1999 · N110HM · Doug DC983SDR CA991210082Unknown · smoke(CAN) AFTER T/O THE CREW OBSERVED AND SMELLED SMOKE IN FLIGHT COMPARTMENT. O2 MASKS DROPPED AND RTB. SUSPECTED DEICING FLUID IN ENGINES OR APUNov 20, 1999 · Cndair CL6002B19SDR AU991003Housing · failed(AUS) APU COOLING AIR FAN SEIZED AND GEARBOX CASE SHATTERED.Aug 17, 1999 · Boeing 747338SDR CA990614084Apu · failed(CAN) FLIGHT CREW REPORTED ODOR COMING FROM AIR CONDITIONING SYSTEM. APU REPLACED, NO FURTHER REPORTS.May 29, 1999 · Airbus A320211SDR DLM88991138Apu · leakingAFTER T/O, MID CABIN TO AFT SMELL OF SMOKE. RETURNED ATL. F/A VERIFIED ODORS 3 TIMES DURING APPROACH. AN UNUSUAL VIBRATION AFT END WAS ACCOMPANYING THE SMELL. FOUND APU LEAKING INTERNALLY. REMOVED AND REPLACED APU, PERFORMED DUCT BURNOUT PER M/M. REMOVEDMay 22, 1999 · N919DE · Doug MD88SDR P5CA9900217Skin · corrodedEMP APU AIR INLET DOOR CUT OUT FWD EDGE SKIN HAS SURFACE CORROSION. REPAIRED CORROSION PER SRM 51-10-01 AND 51-10-02.Feb 25, 1999 · N855FT · Boeing 747124SDR AALA990041Apu · leakingMIA - FLT 1246 - EN ROUTE MIA-LGA - ABOUT 3 TO 4 MINUTES AFTER TAKEOFF, EXPERIENCED SMOKE IN CABIN AT 3,000 FEET. ACCOMPLISHED AIR CONDITIONING SMOKE AND FUMES EMERGENCY PROCEDURE. SMOKE APPEARED TO BE COMING FROM AIR CONDITIONING SYSTEM. RETURNED AND MADE Jan 7, 1999 · N228AA · Doug DC982SDR CA980916033Apu · failed(CAN) SHORTLY AFTER TAKEOFF, THE LAVATORY SMOKE DETECTOR SOUNDED, EMERGENCY DECLARED. AIRCRAFT RETURNED AND OVERWEIGHT LANDING CARRIED OUT. HEAVY LANDING CHECK CARRIED OUT, ALL OK. REPLACED SMOKE DETECTOR. GROUND RUN SERVICEABLE. NEXT FLIGHT, SMOKE DETECTSep 6, 1998 · Fokker F28MK1000SDR DHL98741004Apu · malfunctionedDEPARTED SMF WITH 13TH STAGE MOD VALVE DMI TO OPEN POSITION, NR 1 BLEED OFF, LEFT PACK OFF. WHEN LEFT PACK TURNED ON IN FLIGHT, NOTICED A STRONG ODOR IN COCKPIT. THE ODOR INCREASED AS WE TURNED BACK FOR LANDING. RECEIVED APU FIRE INDICATION, PULLED HANDLE Aug 20, 1998 · N741DH · Boeing 7272Q9SDR QXEA9801079Apu · failedDURING CLIMB LAVATORY SMOKE DETECTOR WENT OFF. NO SMOKE OR FIRE WAS FOUND BY CREW INSPECTION OF LAVATORY. MAINTENANCE NOTED BLUE HAZE IN CABIN WITH THE APU RUNNING. SUSPECT APU BLEED AIR TO HAVE CAUSED WARNING. PLACED APU ON MEL. ON 8/9/98 BOI MAINTENANCEAug 8, 1998 · N491US · Fokker F28MK4000SDR CALA9801205Apu · malfunctionedTHE AIRCRAFT HAD A BRIEF HISTORY OF SMOKE APPEARING IN THE COCKPIT AND CABIN MOMENTARILY WHILE IN FLIGHT. THE SMOKE DISSIPATED QUICKLY ONCE THE EFFECTED PACK WAS TURNED OFF. THE APU WAS REMOVED AND REPLACED IAW MM 49-00-00, PAGES 401-415. OPERATIONAL CHECKSJul 6, 1998 · N68041 · Doug DC1010SDR AALA981353Apu · failedYYZ - FLT 1084 - AFTER TAKEOFF YYZ EN ROUTE TO LGA ON CLIMB-OUT, SMOKE WAS OBSERVED IN COCKPIT WITH BURNING SMELL. SMOKE APPEARED AFTER APU WAS SHUT DOWN IN-FLIGHT. AIRCRAFT RETURNED AND LANDED YYZ WITHOUT INCIDENT. REPLACED APU PER MM. ACCOMPLISHED OPERATJul 6, 1998 · N1406A · Fokker F28MK0100SDR CA980608021Apu · leaking(CAN) DURING CLIMB OUT, AN OILY SMELL WAS DETECTED IN BUSINESS CLASS SECTION OF PASSENGER COMPARTMENT. SMELL DISSIPATED AFTER LEFT HAND AIR CONDTIONER PACK TURNED OFF. MAINTENANCE CHECK REVEALED AUXILIARY POWER UNIT WAS CONTAMINATING LEFT AIR CONDITIONER PACMay 19, 1998 · Doug DC932SDR MWEA98561Apu · defectiveAFTER COMPLETING BEFORE START CHECKLIST EXTERNAL POWER WENT OFF LINE AND CABIN FILLED WITH SMOKE. MTC DEFERRED ENTIRE APU.Apr 26, 1998 · N502ME · Doug DC932SDR TAOA039806Apu · overheatingLGA-BOS - FLT 6080 - SMOKE IN CABIN WITH BOTH PACKS AND GASPER FAN ON. PACKS WERE NOT OVERHEATED, BEFORE DEPARTURE LGA AIRCRAFT SWAP. REPLACED AUXILIARY POWER UNIT ASSEMBLY PER FORM 14MT-4914A LEAK AND OPERATIONAL CHECK NORMAL. RAN BOTH PACKS NO SMOKE OR FUMar 26, 1998 · N924TS · Boeing 727227SDR 98UAL900064Apu · malfunctionedNR 2 PNEUMATIC INOP AC OIL SMELL IN CABIN. *S/D* BURNED OUT NR 2 PACK. REPLACED COALESCER BAG. ALSO, REPLACED APU AS PRECAUTIONARY MEASURE.Feb 15, 1998 · N1816U · Doug DC1010SDR 97UAL900857Air Distr · odorFUEL VAPOR IN CABIN DURING FUELING. SLIGHT SMELL FOR 3 LEGS. SMELL WAS STRONG AT DEN. *S/D* THE FUEL MANIFOLD WAS CRACKED NEAR THE NOZZLE AT THE TWO O'CLOCK POSITION ON THE APU. THE TWO O'CLOCK POSITION ON THE MAIN START FUEL NOZZLE WAS LEAKING. REPLACEDDec 2, 1997 · N315UA · Boeing 737322SDR CA971219035Apu · leaking(CAN) LAVATORY SMOKE CAUTION MESSAGE AND MIST IN THE CABIN. AUXILIARY POWER UNIT (APU) SUSPECTED OF ALLOWING OIL INTO THE BLEED AIR SYSTEM. NO FAULTS FOUND.Nov 18, 1997 · Cndair CL6002B19SDR SWAA970978Apu · failedSLIGHT SMOKE IN CABIN DURING APU OPERATION. VERIFIED APU WAS THE CAUSE \NDEFERRED APU OPERATION PER MEL\N\NREPLACED APU ASSEMBLY DURING OVERNIGHT MAINT CHECK PER BOEING M/MOct 31, 1997 · N649SW · Boeing 7373H4
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