JASC 4990

Service difficulty reports · 2,656

Reports filed under 4990 · APU Oil 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 = '4990'
  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 AUS20011434Oil Tank · leaking(AUS) APU OIL TANK LEAKING.Nov 29, 2001 · Fokker F28MK1000SDR 2001F00746Oil System · lowDURING CRUISE, APU OIL ADD LIGHT CAME ON, APU SHUT DOWN. ATTEMPTED RESTART TWICE WITH NO SUCCESS. RIGHT IDG PREVIOUSLY PLACED ON MEL. ACCOMPLISHED UNEVENTFUL, UNSCHEDULED LANDING. SERVICE APU WITH 3 QUARTS OF OIL, CHECKED CHIP DETECTORS. PERFORMED APU BITNov 8, 2001 · N513NA · Boeing 7572T7SDR 2001F00673Oil System · lowAPU LOW OIL PRESSURE LIGHT ILLUMINATED IN FLIGHT FOLLOWED BY APU AUTO SHUTDOWN. A/C CONTINUED FLIGHT 60 MINUTE RULE. ON GROUND SERVICED APU OIL AND CHECKED APU FOR LEAKS, NONE FOUND. APU OPS CHECK NORMAL. (M)Nov 3, 2001 · N800NA · Boeing 7378Q8SDR COMA0160837ApuFLIGHT #5635. APU OIL PRESSURE CAUTION MESSAGE. ACFT MADE UNSCHEDULED LANDING DUE TO IDG DEFERRAL.INSPECTED APU OIL LEVEL AND OIL PRESSURESWITCH. RAN APU FOR 30 MINUTES. NO DEFECTS FOUND. COULD NOT DUPLICATE.Oct 22, 2001 · N805CA · Cndair CL6002B19SDR 2001UALA02144Pressure SwitchOIL SMELL IN CABIN. FOUND APU OIL PRESS SWITCH LEAKING INTO APU INLET. REPLACEDSWITCH AND RAN PACKS. NO LEAKS OR SMELL NOTED.Oct 17, 2001 · N825UA · Airbus A319131SDR C2XA01CL204Oil Cap · out of positionCLE FLIGHT 3864 THE CREW REPORTED A LAV SMOKE WARNING INDICATION ON TAXI OUT WITH A SMELL OF SMOKE IN LAV. THE AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND FOUND THE APU OIL SERVICE CAP WAS OFF AND OIL LEAKING OUT OF RESESep 17, 2001 · N16511 · Emb EMB135ERSDR 2001FA0000351Cover · brokenWHEN REMOVING THE APU OIL FILTER COVER, THE RETAINING EARS THAT HOLD THE END OF THE COVER, THE RETAINING EARS THAT HOLD THE COVER IN PLACE BREAKS OFF. RECOMMEND MANUFACTURING A FILTER COVER WITH A HEX FITTING ON THE END OF THE COVER, IT WOULD MAKE IT EASIER TSep 7, 2001 · N811TA · Raythn HAWKER800XPSDR DLM88011430Tank · leakingAFT LAV SMOKE DETECTORS ACTIVATED DURING CLIMB AND SMOKE WAS APPARENT. NATURE OF PROBLEM, SMOKE IN CABIN. CAUSE OF SMOKE DETERMINED TO BE OIL LEAKING FROM APU OIL TANK AND INGESTED IN APU INLET. RENDERED APU INOP AND PERFORMED OPER 5088 FOR DUCT BURN OUT PRAug 30, 2001 · N908DL · Doug MD88SDR JBXA000316Apu · lack of lubeAPU OIL PRESS MESSAGE IN FLIGHT. LANDED AT KDCA IAW QRH; T/S PER FIM 49-60-00. FOUND OIL QUANTITY LOW. FILLED TANK AS REQUIRED, CKECKS OK.Aug 19, 2001 · N574NL · Cndair CL6002B19SDR DLM88011078Apu · leakingFLT ATTENDANTS SMELLED AN ELECTRICAL BURNING ODOR, A LITE HAZE ALSO APPEARED. AFT LAV SMOKE DETECTORS WERE INTERMITTENTLY SOUNDING FOR APPROX 2 MINUTES THEN WENT OFF COMPLETELY. PERFORMED OPN 5088. NO ELECTRICAL SMELL NOTED. REPLACED APU DUE TO OIL Jun 27, 2001 · N967DL · Doug MD88SDR JBXA000278Oil Cooler · defectiveIDG 2 MESSAGE APPEARED IN FLIGHT. APU OIL TEMP MESSAGE APPEARED IN FLIGHT. A/C RETURNED TO RDU. REPAIRED WIRE AT IDG OIL TEMP BULB CANNON PLUG PIN B IAW CL-65 WIRING MANUAL 20-00-00. OPS CHECK GOOD AT THIS TIME. REMOVED AND REPLACED APU OIL COOLER ASSY LEMay 3, 2001 · N584ML · Cndair CL6002B19SDR AALA20010864O-Ring · leakingDFW - FLT 2090 - EN ROUTE SAN-DFW - SHORTLY AFTER TAKEOFF, DETECTED HAZE IN CABIN. LANDED DFW WITHOUT FURTHER INCIDENT. REPLACED MAGNETIC DRAIN PLUG O-RING AT APU. PERFORMED LEAK CHECK. NO LEAKS NOTED. PERFORMED PACK BURNOUT PER THE MM. SYSTEM GRUOND CHEApr 25, 2001 · N218AA · Doug DC982SDR GTIA010214Apu · lack of lubeACY - FLT 1143 - APPROX 3 MINUTES AFTER STARTING APU INFLIGHT, APU OIL TEMP HIGH LIGHT CAME ON. PERFORMED QRH PROCEDURES VRF. DIVERTED TO ACY, NO OVERWEIGHT LANDING. SERVICED APU OIL IAW 12-12-01. SYSTEM OPS CHECK GOOD PER MM. (M)Apr 22, 2001 · N810NK · Doug DC981SDR DLL14010642Carbon Seal · leakingON PUSHBACK FROM GATE WHEN STARTING ENGINES, NOTICED HOT PLASTIC SMELL. NOTIFIED BY CABIN ATTENDANTS OF CABIN FILLING WITH SMOKE AND ALL SMOKE ALARMS GOING OFF. FOUND GARLOCK SEAL FOR APU GENERATOR LEAKING OIL. REPLACED CARBON SEAL.Apr 19, 2001 · N737D · Lkheed 1011385115SDR 2001UALA00400Switch · failedAPU OIL QUANTITY STATUS MESSAGE ILLUMINATED. RIGHT GENERATOR PREVIOUSLY DEFERRED. SUPPLEMENTAL DATA UPDATE ACCOMPLISHED APU OIL CONSUMPTION CHECK. APU WAS CHECKED ONCE FOR OIL CONSUMPTION AND EXTERNAL OIL LEAKS, AND NO DISCREPANCIES WERE FOUND. SUSPECT THE OApr 3, 2001 · N588UA · Boeing 757222SDR DLM88010543O-Ring · leakingAFT CABIN SMOKE DETECTERS GOING OFF IN FLIGHT. FOUND 1 AFT SMOKE DETECTOR BAD AND APU OIL LEAK.NO ODER NOTICED IN CABIN. PERFORMED OP 5088 T/S FOR SMOKE IN CABIN AND PERFORMED DUCT BURN OUT.REPLACED SMOKE DET.Apr 2, 2001 · N929DL · Doug MD88SDR DLM88010514Apu · leakingSMOKE ALARM GOING OFF IN AFT LAV HAZE OBSERVED BY FLT ATTENDENT - REPLACED APU FOR OIL LEAK - PERFORMED DUCT BURNOUTMar 28, 2001 · N903DE · Doug MD88SDR AALA20010613B-Nut · looseORD-BDL - FLT 1460 - EN ROUTE SHORTLY AFTER TAKEOFF DETECTED SMOKE AND HAZE IN COCKPIT AND CABIN. RETURNED ORD AND LANDED WITHOUT FURTHER INCIDENT. REPLACED WATER SEPARATOR BAGS. TIGHTENED OIL COOLER SYSTEM B-NUT LINE AT LEFT SIDE APU COMPARTMENT. PERFORMEMar 21, 2001 · N422AA · Doug DC982SDR 2001UALA00260Chip Detector · leakingSTATUS MESSAGE, APU LOW OIL QTY DISPLAYED. APU SHUTDOWN. LEFT GENERATOR DEFERRED. SUPPLEMENTAL DATA UPDATE FOUND COMPRESSOR BEARING CHIP DETECTOR BODY LEAKING. REPLACED CHIP DETECTOR ASSEMBLY, SERVICED AND LEAK TESTED OK.Mar 15, 2001 · N541UA · Boeing 757222SDR DLM88010434Apu · leakingPASSING FL 220 WE GOT A RT ICE PROT TEMP HIGH LIGHT WE CLOSED THE RT CROSSFEED VALVE THEN GOT A RT AIR COND TEMP HILIGHT FOLLOWED BY SMOKE IN THE CABIN AND COCKPIT FOLLOWED CK LIST SMOKE STOPPED. FOUND APU OIL LEAKING INTO APU INLET C/W OPN 5088 UNABLE TO FINMar 15, 2001 · N976DL · Doug MD88SDR AALA20010555Apu · leakingDFW - FLT 421 - EN ROUTE DFW-SEA, SHORTLY AFTER TAKEOFF, CABIN FILLED WITH SMOKE. RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT. REPLACED APU. PERFORMED PACK BURNOUT PER MM. LEAK CHECKED GOOD. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)Mar 9, 2001 · N489AA · Doug DC982SDR DL72L010431Apu · leakingON GROUND PREFLT OPERATING A/C PACKS CREATES AN ODOR AND HAZE IN AFT CABIN. ALL COCKPIT INDICATIONS NORMAL AFTER PACK OFF. RE-CYCLED LEFT PACK ONLY AND ODOR / HAZE REAPPEARED. CORRECTED OIL LEAK AT APU.Mar 5, 2001 · N502DA · Boeing 727232SDR COMA0160302Warning System · false indicationAPU OIL PRESSURE CAUTION MESSAGE. COULD NOT DUPLICATE. APU OIL LEVEL AND PRESSURE NORMAL.Mar 4, 2001 · N914CA · Cndair CL6002B19SDR USAASB01061O-Ring · leakingBDL - FLT 2978 - EN ROUTE FROM PVD-BWI, THE NR 1 GENERATOR DROPPED OFF LINE AND WOULD NOT RESET. THE NR 1 GENERATOR DRIVE OIL TEMPERATURE ''IN'' INDICATION WAS OFF SCALE AND NO HIGH OIL TEMPERATURE LIGHT ILLUMINATED. AFTER PLACING APU ON LINE, THE APU LATER Feb 26, 2001 · N257AU · Boeing 737201SDR UPS01235012Apu · overservicedINSPECTION TYPE:N/A, AFTER RUNNING PACK ON COCKPIT FILLED WITH SMOKE. SHUTDOWN PACK, SMOKE STARTED TO DISSIPATE. SMELLED LIKE BURNING OIL. *S/D* FOUND APU OVER SERVICED OPERATED PACK COOL AND HOT. NO PROBLEM NOTED.Feb 18, 2001 · N940UP · Boeing 727185CSDR 0100439610Apu · overservicedDURING CLIMB, FLIGHT ATTENDANTS REPORTED SMOKE IN CABIN. FORWARD LAV DETECTOR SOUNDED. FLIGHT CREW RETURNED TO DEPARTURE AIRPORT. SMOKE BEGAN TO DISSIPATE DURING RETURN TO DEPARTURE AIRPORT. AN UNEVENTFUL LANDING WAS PERFORMED. MAINTENANCE FOUND APU OIL OFeb 12, 2001 · N610NW · Doug DC932SDR 2001UALA00112Apu · leakingAIRCRAFT DISPATCHED WITH NR 1 GENERATOR INOPERATIVE. CREW REPORTED THAT THE APU OIL QUANTITY WAS DROPPING. AIRCRAFT DIVERTED TO DEN.Feb 11, 2001 · N617UA · Boeing 767222SDR USAASB01034Pressure Switch · malfunctionedCLT - FLT 2826 - EN ROUTE FROM MCO TO BOS, THE NR 2 ENGINE CSD HIGH OIL TEMPERATURE LIGHT ILLUMINATED ALONG WITH HIGH OIL TEMPERATURE INDICATION ON THE CSD TEMPERATURE GAUGE. CREW DISCONNECTED THE NR 2 ENGINE CSD AND STARTED THE APU. CREW THEN RECEIVED AN APFeb 3, 2001 · N259AU · Boeing 737201SDR CA010226005Apu · leaking(CAN) THE CREW REPORTED THE SMOKE TOILET CAUTION MESSAGE AT 9000 FEET. SMOKE WAS VISIBLE WHEN BLEED WAS TRANSFERRED IN CABIN AND COCKPIT WHEN BLEEDS WERE TRANSFERRED TO APU. AIRCRAFT DID AN EMERGENCY LANDING.THE MAINTENANCE FOUND OIL COMING FROM COMPRESSOR DRAFeb 3, 2001 · Cndair CL6002B19SDR COMA0160204Apu · overservicedSMOKE TOILET WARNING, VISIBLE SMOKE IN CABIN AND COCKPIT. APU WAS OVER SERVICED WITH OIL. REMOVED OIL FROM APU TO PROPER LEVEL.Feb 3, 2001 · N721CA · Cndair CL6002B19SDR QXEA01000087Apu · odorPDX- OIL SMELL IN CABIN. REMOVED AND REPLACED APU. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.Jan 30, 2001 · N498US · Fokker F28MK4000SDR AALA20010153Cooling Fan · leakingICT - FLT 487 - AT GATE SHORTLY BEFORE TAKEOFF, FLIGHT ATTENDANT REPORTED HEAVY SMOKE AT COCKPIT. GROUND PERSONNEL REPORTED FLAMES AT APU AREA. CREW IMMEDIATELY SHUT DOWN APU AND REMOVED ALL POWER FROM AIRCRAFT. REPLACED APU. INVESTIGATION DETERMINED OIL CJan 28, 2001 · N1435D · Fokker F28MK0100SDR QXEA01000080Oil Tank · odorBOI- STRONG FUEL SMELL IN FORWARD CABIN AND GALLEY AREA. REMOVED AND REPLACED APU OIL TANK. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.Jan 28, 2001 · N498US · Fokker F28MK4000SDR DLM88010150Apu · contaminatedENGINE ANTI-ICE ON SMELLED FUMES AFTER PLACING WING ANTI-ICE ON. SMOKE ALARMS IN REAR SOUNDED ON APPROACH WITH POWER AT IDLE. FUMES SMELLED DURING CLIMB, CRUISE, DESCENT WITH ALL AND CROSSED FEEDS OPEN. APU OFF TEMP CONTROL AT 12 O''''CLOCK, LT LAV SMOKE DEJan 26, 2001 · N906DL · Doug MD88SDR USAASB01021Pressure Switch · faultyCHS - FLT 2622 - EN ROUTE FROM MCO TO BWI, THE APU SHUTDOWN. THE NR 1 CSD/GENERATOR WAS ALREADY ON MEL, SO THE FLIGHT DIVERTED TO CHS AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE APU SEQUENCING OIL PRESJan 23, 2001 · N283AU · Boeing 7372B7SDR TWAA0101501Apu · contaminatedDURING SHORT FINAL CREW NOTICED SMELL OF SMOKE. AFTER LANDING SMELL WENT AWAY. AFTER EXTENSIVE CHECKS CAUSE NOT DETERMINED. DID CLEAN SOME OIL FROM APU INLET SO APU OIL MAY HAVE BEEN OVERSERVICED. CHECK-C 10-16-00 STL.Jan 23, 2001 · N9302B · Doug DC983SDR AALA20010141Tube · leakingDFW - FLT 2437 - EN ROUTE DFW-LAX, SHORTLY AFTER TAKEOFF DETECTED LIGHT SMOKE AND FUMES AT COCKPIT. RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT. REPLACED OIL FILL SCUPPER ASSEMBLY AT APU. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)Jan 22, 2001 · N441AA · Doug DC982SDR SWIA972293Apu · failedLAVATORY SMOKE DETECTOR MESSAGE. FLIGHT ATTENDANT REPORTS SMOKE IN CABIN. SMOKE DISSIPATED AND SMELLS LIKE OIL OR PACK SOURCE. INSPECTED AIRCRAFT AND FOUND APU SUSPECTED TO BE INOPERATIVE. DEFERRED THE APU.Jan 22, 2001 · N408SW · Cndair CL6002B19SDR SWIA972296Oil Cooler · cloggedAPU OIL PRESSURE CAUTION MSG COMES ON AFTER TAKEOFF AND REMAINS ON. RETURNED TO SLC. TROUBLESHOT SYSTEM. FAULT CODES IN ECU INDICATED HOT INDICATION DUE TO HIGH OIL TEMP. REPLACED PLUGGED OIL COOLER IAW MM 49-91-07 AND HIGH OIL TEMP SENSOR IAW MM 49-91-25.Jan 17, 2001 · N406SW · Cndair CL6002B19SDR SWIA972278Pressure Switch · failedAPU LOW OIL PRESSURE IN FLIGHT. RETURNED TO SLC. REMOVED AND REPLACED APU OIL PRESSURE SWITCH IAW A/C MM 41-91-20. ALSO REMOVED AND REPLACED APU ECU. (P/N 2118800-2) (S/N ON 66-F0139) (S/N OFF 44-F0007) IAW A/C MM 49-61-01. OPS CHECKED AND LEAK CHECKED GJan 17, 2001 · N406SW · Cndair CL6002B19SDR COMA0160076Switch · malfunctionedAPU OIL PRESSURE MESSAGE. REPLACED APU LOW OIL PRESSURE SWITCH.Jan 6, 2001 · N785CA · Cndair CL6002B19SDR TWAA0100302Smoke · detectedON SHORT FINAL SMOKE APPEARED IN THE CABIN WHEN ANTI-ICE WAS TURNED ON. ACCOMPLISHED PACK BURN OUT AND DEACTIVATED APU PER MEL. CHECK-C 5-12-00 MCI.Jan 3, 2001 · N919TW · Doug DC982SDR COMA0160041Cooler · cloggedAPU OIL PRESSURE CAUTION MESSAGE. REPLACED THE APU OIL COOLER.Dec 28, 2000 · N959CA · Cndair CL6002B19SDR VNAA0012025Apu · failedFLIGHT 4145 WAS EVACUATED AT THE GATE DUE TO SMOKE IN CABIN. OUTSTATION MAINTENANCE INSPECTED AND FOUND THE AUXILIARY POWER UNIT WAS BURNING OIL. THE AUXILIARY UNIT WAS DEFERRED AND FLIGHT 4145 DEPARTED WITH A 103 MINUTE DELAY.Dec 26, 2000 · N426JS · Dorner DO328100SDR CA010129002Apu · failed(CAN) ON DEPTR LAV SMOKE DETECTOR SOUNDED AROUND SAME TIME CREW STARTING FEELING NAUSEOUS. ALSO CREW RPTED PASSENGERS COMMENTING ON BURNING SMELL IN CABIN. A/C RETURNED TO YWG & LANDED W/O INCID.. MAINTENANCE INSP REVEALED APU OIL LEVEL DOWN TO 1/2 TANK - SUSPDec 20, 2000 · Fokker F28MK1000SDR MWEA001248Apu · contaminatedDURING PUSH-BACK, AFT RIGHT AND LEFT LAV SMOKE DETECTORS SOUNDED. -- SUSPECT EXTERNAL OIL LEAK FROM APU. RAN APU FOR 30 MINUTES. NO OIL LEAKS NOTED.Dec 14, 2000 · N207ME · Doug DC932SDR 2000UALA00790Pressure Switch · leakingUNUSUAL SMELL NOTED IN THE CABIN. SUPPLEMENTAL DATA UPDATE AFTER ACCOMPLISHMENT OF TROUBLESHOOTING PROCEDURES, FOUND APU OIL PRESSURE SWITCH LEAKING AND OIL BEING INGESTED INTO APU AIR INLET. SWITCH WAS REPLACED AND NO FURTHER SMELL NOTED.Dec 13, 2000 · N408UA · Airbus A320232SDR ASAA0040142Tank · chafedSEA - DURING C-CHECK, FOUND APU OIL TANK RIDING ON UPPER SHROUD ON THE LEFT SIDE OUTBOARD EDGE CAUSING RUB DAMAGE. BLENDED OUTBOARD EDGE OF APU OIL TANK UPPER SHROUD IAW EA 4910-01059. (M)Dec 7, 2000 · N797AS · Boeing 737490SDR AALA20001972Apu · leakingEWR - FLT 521 - EN ROUTE EWR-ORD, SHORTLY AFTER TAKEOFF DETECTED SMOKE IN CABIN. DECLARED EMERGENCY, RETURNED EWR AND LANDED WITHOUT FURTHER INCIDENT. REPLACED APU. SYSTEM IS UNDER INVESTIGATION. (M)Nov 24, 2000 · N7528A · Doug DC982SDR DLM88002293Apu · leakingDURING INITIAL CLIMB RT LAV SMOKE DETECTOR SOUNDED WITH SMOKE/FUMES FROM AIR CONDITIONING SYSTEM SUSPECTED.ALARM CEASED IN ONE MINUTE CROSSFEED VALVE CLOSED AND AIRFOIL ENG ANTI ICE OFF-APU OFF KNOWN EPR AT 1.69 CORR ACTION- FOUND APU LEAKING OIL AND INNov 24, 2000 · N909DL · Doug MD88
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