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 AALA20040846O-Ring · leakingINFLIGHT T313/13, FLIGHT ATTENDANTS SMELLED AND SAW SMOKE IN CABIN. FIRST OFFICER REPORTED ODOR LIKE BURNING CLOTHING. RETURNED AND LANDED WITHOUT INCIDENT. ACCOMPLISHED PACK BURNOUT IAW MCM CARD 21 92 12 AND ACCOMPLISHED WORK CARD 21 96 01. FOUND APU LOW Aug 13, 2004 · N276AA · Doug DC982SDR COMA0460429Warning Light · illuminatedFLIGHT 5711 APU OIL TEMP CAUTION MESSAGE. COULD NOT DUPLICATE APU OPERATIONAL CHECK SATISFACTORY.Jul 24, 2004 · N976CA · Cndair CL6002B19SDR COMA0460364Warning Light · illuminatedFLIGHT 5905 APU OIL PRESSURE CAUTION. COULD NOT DUPLICATE, FOUND NO DEFECTS WITH APU.Jun 9, 2004 · N999CA · Cndair CL6002B19SDR DLM88040480Oil System · lowA/C 9013 DIVERTED TO LGA FROM ATL EN ROUTE TO ALB DUE TO APU FAULT LIGHT ILLUMINATED AFTER LEFT ENGINE CSD DISCONNECTED. SERVICED APU OIL TO FULL.May 30, 2004 · N913DE · Doug MD88SDR DL757040473Oil System · lowAPU FAULT LIGHT AND APU SHUTDOWN FOLLOWED WITH APU OIL QTY MESSAGE. SERVICED OIL.May 27, 2004 · N608DA · Boeing 757232SDR UPS04542419Oil System · overservicedINSPECTION TYPE:N/A ATB - APU FAILED IN FLT W/RT ENG GEN ON MEL. FOUND OIL OVER SERVICED. NO FAULTS FOUND ON APU CONTROLLER GROUND. RAN APU A/C OK FOR SERVICE.May 23, 2004 · N414UP · Boeing 75724APFSDR 04FDEA01342Switch · defectiveAPU AUTO SHUTDOWN IN FLIGHT TWICE, CFDS FAULTED OIL PRESS LO. REMOVED AND REPLACED APU LOP SWITCH AS PER AMM 49-94-01-4. OPS TEST OF APU CARRIED OUT AS PER 49-10-00. FOUND SATISFACTORY.May 19, 2004 · N590FE · Doug MD11SDR USA2004F00035Apu · shutdownENROUTE, WITH THE NR 2 ENGINE INTEGRATED DRIVE GEN (IDG) ON MINIMUM EQUIPMENT LIST (MEL), THE AUXILARY POWER UNIT (APU) SHUT DOWN DURING FLIGHT. FLIGHT DIVERTED TO PIT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACE THE NR 2 ENGINE IDG AND REMOVED MMay 14, 2004 · N101UW · Airbus A320214SDR DLM88040368Oil Cap · leakingON TAKEOFF AFT LAV SMOKE DETECTOR WENT OFF, WITH SLIGHT ODOR IN CABIN AND COCKPIT, AFTER 30 SEC ODOR WENT AWAY AND ALARM CEASED. REPLACED LEAKING APU OIL CAP AND PERFORMED DUCT BURNOUT.Apr 23, 2004 · N973DL · Doug MD88SDR COMA0460271Oil Cooler · defectiveFLIGHT 5015 APU OIL PRESSURE CAUTION MESSAGE. REPLACED THE APU OIL COOLER.Apr 13, 2004 · N416CA · Cndair CL6002B19SDR COMA0460260Oil Cooler · malfunctionedFLIGHT 9466 APU OIL TEMP CAUTION. REPLACED THE APU OIL COOLER.Apr 10, 2004 · N779CA · Cndair CL6002B19SDR COMA0460250Warning Light · illuminatedFLIGHT 5051 APU OIL TEMP CAUTION MESSAGE. COULD NOT DUPLICATE. INSPECTED OIL LEVEL AND CLEANED TEMP SWITCH. RUN CHECKS WERE NORMAL.Apr 9, 2004 · N779CA · Cndair CL6002B19SDR AALA20040386O-Ring · inoperativeJFK - INFLIGHT T1453 AFTER TAKEOFF FROM LGA, FLIGHT ATTENDANT AND FLIGHT CREW NOTICED ODOR. CABIN VISIBILITY REDUCED BY BLUE/GRAY SMOKE OBSCURING VISION FROM FORWARD TO AFT CABIN. TURNED OFF PACKS, GALLEY POWER, AND RECIRCULATING FANS WITH NO AFFECT. LANDEDMar 25, 2004 · N423AA · Doug DC982SDR A6WA200460010Shaft Seal · leakingSTRONG ODOR IN COCKPIT, EYES BURNING WITH AC PACKS ON. MAINTENANCE PERFORMED PACK BURN OUT PROCEDURE. REMOVED AND REPLACED APU ASSEMBLY. (M)Mar 22, 2004 · N156TR · Bag BAE146200ASDR MASA200400138Apu · leakingTHE CREW RETURNED TO THE FIELD BECAUSE THEY SMELLED SMOKE COMING FROM THE PACKS DUE TO THE APU OIL SPRAYED IN THE APU COMPARTMENT AND THE PACKS. MX RAN ENGINES AND PACKS AT A HIGH TEMP TO DISIPATE THE OIL. OP CHECKS GOOD. NO PARTS USED.Mar 12, 2004 · N87353 · Cndair CL6002B19SDR COMA0460187Apu · overservicedFLIGHT 5114 SMOKE IN COCKPIT COMING FROM COPILOTS SIDE PANEL. FOUND APU OVERSERVICED. SERVICED APU TO PROPER LEVEL AND CLEANED UP OIL MESS IN APU COMPARTMENT.Mar 4, 2004 · N966CA · Cndair CL6002B19SDR USA2004F00017Turbocharger · overservicedON DESCENT, CREW REPORTED STRONG EXHAUST FUMES IN THE AFT CABIN. NO SMOKE WAS NOTED. CREW TURNED RIGHT PACK TO HIGH AND RECIRCULATION FAN TO OFF WITH NO CHANGE. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE APU OIL OVERSERVICED. REMOVED OIL TO PROMar 1, 2004 · N397US · Boeing 7373B7SDR ASOA04157O-Ring · leakingFLT 4768 - DURING DESCENT AND APPROACH INTO ATL FROM GTR, THE CREW SMELLED FUMES AFTER SELECTING THE BLEEDS TO THE APU. SMOKE FILLED THE COCKPIT AND CABIN ACCOMPANIED BY A SMOKE LAVATORY MESSAGE. THE CREW SWITCHED THE BLEEDS BACK TO THE ENGINES AND THE SMOKEFeb 27, 2004 · N925EV · Cndair CL6002B19SDR A6WA200440023Warning Light · illuminatedAPU OIL TEMP CAUTION MESSAGE, DIVERTED TO ATL REF IDG NR 1 ON MEL. INTERROGATED ECU, TROUBLESHOT SYSTEM, REMOVED AND REPLACED HOT OIL TEMPERATURE SENSOR IAW AMM 49-91-25. RAN APU 15 MINUTES WITH LOADS APPLIED. NO DEFECTS NOTED, LEAK CHECK GOOD. (M)Feb 19, 2004 · N409AW · Cndair CL6002B19SDR AALA20040209O-Ring · leakingEWR INFLIGHT T1877/09, SMOKE IN CABIN AFTER TAKEOFF. SLIGHT ODOR IN COCKPIT. FLIGHT ATTENDANT REPORTED SMOKE WAS NOT GOING AWAY. RAN CABIN FIRE SMOKE PROCEDURE AND DEPRESSURIZED CABIN TO REMOVE SMOKE. RETURNED TO EWR AND LANDED WITHOUT INCIDENT. FOUND APFeb 9, 2004 · N434AA · Doug DC983SDR 0400163136Apu · odorDURING CLIMB, FUMES WERE REPORTED IN THE CABIN. FLIGHT CREW RETURNED AIRCRAFT TO DEPARTURE AIRPORT. MAINTENANCE INSPECTED THE ENGINES, APU, AND AC PNEUMATIC DUCTING SYSTEM AND COMPONENTS. APU WAS PLACED ON MEL AND AC PACK SYSTEM BURNOUT PROCEDURES WERE PERFJan 30, 2004 · N336NB · Airbus A319114SDR DHL2004363001Tube · failedAFTER T/O, CLIMBING THRU 4500 FT MASTER WARNING PANEL (MWP) SMOKE LIGHT, AND FORWARD LEFT SMOKE DETECTOR LIGHTS ILLUMINATED. BEGAN IMMEDIATE RETURN TO JFK. AT INITIATION OF EMERGENCY CHECK LIST, SMOKE LIGHTS WENT OUT (APPROX 30 SECONDS) COMPLETED NORMAL APPRJan 25, 2004 · N363DH · Airbus A300B4203SDR USAASA04003Apu · leakingALB - FLT 1471 - EN ROUTE PHL-MHT, CREW RECEIVED THE AFT CARGO FIRE WARNING. CREW ALSO NOTED AN OIL ODOR IN THE CABIN/COCKPIT. CREW DISCHARGED THE CARGO FIRE BOTTLES AND FLIGHT DIVERTED TO ALB. FLIGHT LANDED WITHOUT FURTHER INCIDENT. THIS INCIDENT IS BELIEJan 13, 2004 · N107US · Airbus A320214SDR USAASA04002Oil Cooler · leakingPHL - FLT 160, CREW NOTED OIL ODOR IN CABIN AFTER TAKEOFF FROM PHX. MAINTENANCE FOUND LEAK IN THE APU OIL COOLER. THE APU WAS PLACED ON MEL AND WAS REPLACED SUBSEQUENT TO THIS REPORT. (M)Jan 11, 2004 · N107US · Airbus A320214SDR 03334664Apu · leakingDURING PREFLIGHT INSPECTION OF FLT NR 7394, THE CREW NOTED A SMOKE SMELL IN THE CABIN. CREW NOTIFIED MX CONTROL OF PROBLEM AND MAINTENANCE WAS DISPATCHED PROBLEM WAS FOUND TO BE APU OIL ENTERING THE AIR INTAKE AND CAUSING SMOKE IN THE PACS. THE APU IS CURRENNov 30, 2003 · N664BR · Cndair CL6002B19SDR 2003UALA00758Carbon Seal · damagedOIL SMELL IN COCKPIT ON DESCENT. APU WAS REPLACED AND SHOP DISASSEMBLED GEARBOX AND LOAD COMPRESSOR. ENGINEERING FOUND INDICATIONS THAT THE LOAD COMPRESSOR FRONT CARBON SEAL TO BE THE ROOT CAUSE FOR SMELL IN CABIN. THE LOAD COMPRESSOR CARBON SEAL HOUSING WOct 7, 2003 · N796UA · Boeing 777222SDR MALA030444Apu · odorDURING FLIGHT 3526, F/A COMPLAINED OF GAS ODORS COMING FROM CABIN. MAINTENANCE COMPLETED PACK BURN AND VERIFIED CONTAMINATION COMING FROM APU AIR SYSTEM DEFERRED APU PER MEL 49-00-1 (C) TRANSFERRED TO DMR MXC NOTIFIED 6425. MAINTENANCE REPLACED APU P/N 45016Sep 26, 2003 · N532XJ · Bac AVRO146RJ85ASDR DL76S030851Apu · leakingODOR OF HOT AIR CONDITIONING, SMOKE DETECTORS ALL OVER AIRCRAFT WENT OFF. DESCENDED FROM 410 TO 310 AND SMOKE/ODOR DISSIPATED. ALL SMOKE DETECTORS DISABLED. UPON ENTERING A/C ODOR OF BURNED OIL. INSPECTED ENGS, APU AND PACK BAY AREAS AND ALL NORMAL. SUSPESep 17, 2003 · N132DN · Boeing 767332SDR 0301753142Apu · leakingDURING CLIMB AND CRUISE, FLIGHT ATTENDANT REPORTED AN ODOR IN THE CABIN. EVENTUALLY COCKPIT CREW ALSO NOTICED THE ODOR. FLIGHT CONTINUED TO DESTINATION AND AN UNEVENTFUL LANDING WAS PERFORMED. MAINTENANCE FOUND AN APU OIL LEAK. REPLACED THE APU, PACK BURNOUT PSep 12, 2003 · N342NB · Airbus A319114SDR COMA0360381Pressure Switch · malfunctionedFLIGHT 5254 APU LOW OIL PRESSURE CAUTION MESSAGE. REPLACED THE APU LOW OIL PRESSURE SWITCH.Aug 26, 2003 · N781CA · Cndair CL6002B19SDR COMA0360364Pressure Switch · dirtyFLIGHT 5711 APU OIL PRESSURE CAUTION MESSAGE. CLEANED OIL PRESSURE SWITCH AND OPERATED APU WITH NO FAULTS.Aug 9, 2003 · N446CA · Cndair CL6002B19SDR DL76L030730O-Ring · crackedDURING CRUISE EICAS STATUS MSG APU OIL QTY CAME ON. DURING DESCENT FOR APPROACH THE APU AUTO SHUTDOWN WITH APU FAULT ON EICAS. FOUND OIL CAP O-RING FLAT AND CRACKED. REPLACED SAME RAN APU NO LEAKS NOTED.Aug 7, 2003 · N179DN · Boeing 767332SDR AALA20030814Pressure Switch · faultySTL - FLT 1677 - STL-PHX - APU SHUT DOWN AT 3000 FT, RETURNED STL AND LANDED WITHOUT INCIDENT. REPLACED OIL FILTER AND OIL PRESSURE SWITCH. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)Jul 30, 2003 · N558AA · Doug DC982SDR CA030805007Apu · failed(CAN) APU HAD TO BE SHUTDOWN DUE TO HIGH OIL TEMPERATURE. EMERGENCY DECLARED AS ONE CSD WAS PREVIOUSLY DISCONNECTED AND ON MEL, APU WAS GROUND RUN, OIL LEVEL CHECKED, EVERYTHING WAS BACK TO NORMAL. AIRCRAFT RETURNED TO SERVICE. NO PROBLEM FOR THE REST OF THE FJul 26, 2003 · Doug DC983SDR DLM88030599Apu · leakingWITH CONDITIONED AIR AND PACKS POWERED BY START CART FUMES ENTERED CABIN. TURNED OFF PACKS FUMES DISSIPATED. AFTER TAKEOFF, CABIN WAS KEPT COOL AND FUMES DISSIPATED TOTALLY. IN CRUISE WHEN TEMP SELECTED ABOVE 60 DEG FUMES NOTICED AGAIN. PERFORMED OPNS 5088Jun 30, 2003 · N970DL · Doug MD88SDR QXEA200300761Apu · leakingBIL - FLIGHT 2481 - CREW RETURNED TO FIELD WHEN AFTER TAKE-OFF THE AFT LAVATORY SMOKE DETECTOR SOUNDED. THE CREW COULD SMELL OIL BUT THE ODOR SOON DISSIPATED AND THE WARNING WENT OUT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND OIL IN THE MIXING MANIFOLD. MAIJun 23, 2003 · N606QX · Cndair CL6002C10SDR 2003F00406Control Valve · inoperativeAPU SHUT DOWN DUE TO HIGH OIL TEMPERATURE. REMOVED AND REPLACED APU OIL TEMP BULB IAW 49-94-11. NO HELP. REMOVED AND REPLACED OIL COOLER IAW 49-91-41. NO HELP. REMOVED AND REPLACED APU TEMP CONTROL VALVE IAW 49-91-21. OPS CHECKED GOOD ON RUN UP. FULLY LJun 11, 2003 · N733MA · Boeing 737800*SDR 2003F00424Control Valve · inoperativeDURING TURN AROUND IN MIA, APU INOPERATIVE. HIGH OIL TEMPERATURE FAULT. TROUBLE SHOT SYSTEM. REMOVED AND REPLACED APU TEMP CONTROL VALVE. OPS CHECK AND LEAK CHECKED GOOD IAW 49-91-21. AIRCRAFT RETURNED TO SERVICE. (M)Jun 2, 2003 · N733MA · Boeing 737800*SDR ZW0A0305301Apu · leakingCREW REPORTED HAZE IN CABIN AND HAD ODOR, MOST NOTICEABLE ON THE GROUND. REPLACED THE APU DUE TO INTERNAL OIL LEAK. CHECK-C 9-11-02 STL.May 29, 2003 · N9403W · Doug DC983SDR AUS20030539Oil System · faulty(AUS) APU HAS EXCESSIVE OIL CONSUMPTION. SUSPECT AIR/OIL SEPARATOR.May 20, 2003 · Boeing 737*SDR GTIA030282Oil System · overservicedDIVERTED TO MYR, CRUISE FLIGHT, APU OIL TEMP HIGH ILLUMINATED. FOLLOWED QRH PROCEDURES AND CONSULTED WITH DISPATCH/ DIVERTED TO MYR. FOUND APU OIL OVERSERVICED, DRAINED OIL FROM TANK TO FULL MARK. STARTED APU AND NO FURTHER DEFECTS NOTED. LOADED APU WITH EApr 26, 2003 · N828NK · Doug MD83SDR COMA0360180Pressure Switch · failedFLIGHT 5779 APU OIL PRESSURE CAUTION MESSAGE. REPLACED THE APU LOW OIL PRESSURE SWITCH.Apr 2, 2003 · N466CA · Cndair CL6002B19SDR USAABB03050Bearing Seal · leakingDEN - FLT 167 - EN ROUTE PHL-PHX, WITH THE LT GENERATOR ON MEL AND APU OPERATING, THE CREW NOTED A DECREASE IN THE PAU OIL FROM FULL TO REFILL. SHORTLY THEREAFTER THE APU PERFORMED AN AUTO SHUTDOWN. FLIGHT DIVERTED TO DEN AND LANDED WITHOUT FURTHER INCIDENT.Mar 22, 2003 · N633AU · Boeing 7572B7SDR 0300295642Service difficultyDuring climb three lavatory smoke alarms sounded. Flight attendants reported strong electrical smell. Flight crew returned aircraft to departure airport. Maintenance found oil dripping from the left pack outlet duct. Oil in the packs is residual from APU removFeb 24, 2003 · N542US · Boeing 757251SDR QXEA0300310Switch · malfunctionedPDX ON FLIGHT 2536- APU FAULT FOLLOWED BY APU SHUTDOWN PER CHECKLIST. REMOVED AND REPLACED OIL FILTER DELTA PRESSURE SWITCH. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.Feb 23, 2003 · N614QX · Cndair CL6002C10SDR COMA0360060ApuFLIGHT 5729 APU LOW OIL PRESSURE WARNING.ADDED 2.5 QUARTS OF OIL TO APU.Jan 29, 2003 · N941CA · Cndair CL6002B19SDR 2003UALA00007Oil Cooler · leakingNOXIOUS ODOR IN CABIN AFTER TAKEOFF. SUBJECT APU OIL LEAK WAS CONFIRMED AT TEST. OIL COOLER WAS LEAKING SEVERELY (APPROX 1/2 QT. / MINUTE) FROM THE INLET SIDE OF THE PRESSURE REGULATOR. FURTHER DISASSEMBLY REVEALED SEVERAL DEEP VERTICAL SCRATCHES EVIDENT AJan 2, 2003 · N404UA · Airbus A320232SDR XA12003F00000Filter · cloggedTHE INLINE FILTER INSTALLED UNDER SB 21-3485 CLOGS UP. THERE IS NO TIME INTERVAL TO CLEAN THIS FILTER. THE SB SIMPLY STATES TO INSTALL THE FILTER, IT DOES NOT MENTION AN INTERVAL TO CLEAN OR REPLACE IT. THE CLOGGED FILTER CAUSED THE PRESSURIZATION TO GET A Jan 2, 2003 · N754TA · Raythn HAWKER800XPSDR DLM88021474Packing · leakingSTRONG ODOR IN CABIN WHEN AIRFOIL ANTI ICE SELECTED. FOUND APU INLET CONTAMINATED WITH OIL FROM APU CHIP DETECTOR. REPLACED PACKING ON APU CHIP DETECTOR. PERFORMED OP ON 5088 AND OPN 5089. A/C OK FOR SERVICE.Dec 26, 2002 · N944DL · Doug MD88SDR QXEA0202269Oil System · overservicedSEA-SUP, ON FLIGHT NUMBER 2340, AFTER TAKE OFF PASSENGER SMELLED BURNING RUBBER-TYPE SMELL IN ROWS 17 & 18, ALSO AFTER LANDING SAME SMELL IN REAR OF CABIN. DETERMINED OIL SMELL FROM APU. FOUND APU OIL OVERSERVICED BY 12-14 OZ. DRAINED OFF EXCESS OIL. RAN ADec 22, 2002 · N402QX · Bombdr DHC8401
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