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 AALA20072108Apu · leakingORD INFLIGHT T1502/01NOV - WHITE SMOKE REPORTED IN CABIN WITH OIL ODOR. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPLACED AUXILLIARY POWER UNIT (APU) DUE TO INGESTION OF OIL FROM LEAK. ACCOMPLISHED PNEUMATIC DUCT BURNOUT. SYSTEM GROUND CHECKED NORMAL ONov 1, 2007 · N447AA · Doug DC982SDR A6WA200740546Oil System · lowAPU OIL CAUTION MESSAGE IN FLIGHT. SERVICED APU OIL IAW AMM 12-13-49. ADDED 1 PINT. PERFORMED, OPS TEST OF APU IAW 49-10-01, OPS CHECK GOOD. (M)Sep 25, 2007 · N431AW · Cndair CL6002B19SDR SIMA200725401Apu · leakingOIL SMELL WITH BLEEDS ON. FOUND APU LEAKING OIL AND PLACED THE APU ON MEL. AIRCRAFT RETURNED TO SERVICE. REMOVED AND REPLACED APU IAW AE WORKCARD 49-800-05 MEL RESTOREDSep 10, 2007 · N856AE · Emb EMB135KLSDR 200725401Oil System · leakingOIL ODOR WITH BLEEDS ON. FOUND APU LEAKING OIL AND PLACED THE APU ON MEL.Sep 10, 2007 · N856AE · Emb EMB135KLSDR VNAA0709004Oil System · overservicedWITH THE APU SUPPLYING AIR TO THE PACK, AN OIL SMELL WAS NOTED ALONG AN ANTI-ICE DUCT WING WARNING MESSAGE. MAINTENANCE INSPECTED AND PERFORMED AN OPERATIONAL TEST OF THE RIGHT HAND FUSELAGE LOOPS AND THE APU. MAINTENANCE REMOVED REPLACED THE LOOP A18WK. MASep 2, 2007 · N241PS · Cndair CL6002B19SDR DXTA200702437Oil System · leakingAPU AUTOMATICALLY SHUTDOWN IN FLIGHT DUE TO AN OVERHEAT. SMOKE FROM OVER-HEATED APU ENTERED CABIN. UPON VISUAL INSPECTION OF APU FOUND APU OIL TO BE LOW. ADDED OIL AS REQUIRED IAW 650XLS AMM 12-10-00. RAN APU LOADED WITH ACM FOR APPROX. 20 MIN EGT PEAKED AAug 31, 2007 · N611QS · Cessna 560XLSDR CHQA200700042Apu · overservicedSDF TO IAH - DURING APPROACH INTO IAH, CREW RECEIVED "APU OVERTEMP" AURAL WARNING AND MESSAGE AFTER SWITCHING BLEEDS TO APU. CREW OBSERVED THE TEMPERATURE REACHED 999 DEGREES CELSIUS. COMPLETED THE QRH FOR APU OVERTEMP MSG. EGT WAS SUSTAINED AT 999 DEGREES Aug 26, 2007 · N642BR · Bombdr CL6002D15SDR DXTA200702415Bypass Valve · inoperativeAN EXCESSIVE ODOR OF BURNING OIL IS PRESENT THROUGHOUT CABIN. FOUND APU OIL OVER SERVICED. REMOVED 0.5 CAPS OIL TO BRING APU OIL TO SERVICEABLE LEVEL. INSPECTED AND CLEANED AIR DELIVERY LINES FROM WATER SEPERATOR LEFT SIDE TO THE PERSSURE BULKHEAD. REPLACED FWAug 21, 2007 · N908QS · Cessna 750SDR UPS07650469Oil System · overservicedINSPECTION TYPE:ETOP APU AUTO SHUTDOWN M356966. APU RUN C/OUT IAW AMM 49-11-00. APU AUTO SHUTDOWN OCCURRED WITH -LOP- ON BITE. FIM TASK 49-11-00 FIG 109 C/W. FOUND APU OIL LEVEL OVER SERVICED. OIL DRAINED TO CORRECT LEVEL AND APU OPS NOW SATIS. DMI M3569Aug 20, 2007 · N332UP · Boeing 76734AFSDR ZLWA0701Seal · blownWITH APU BLEED AIR ON, GOT BLUE SMOKE IN COCKPIT AND CABIN.Aug 12, 2007 · N650K · Cessna 650SDR ZLWA0702Seal · blownWITH APU BLEED AIR ON, GOT BLUE SMOKE IN COCKPIT AND CABIN.Aug 12, 2007 · N650K · Cessna 650SDR 2007UALA03046Sensor · leakingFOUND OIL LEAKING FROM COVER PLATE ABOVE OIL PRESSURE SENSOR AT APU LUBE CLUSTER, ALSO FOUND OIL LEAKING FROM GENERATOR FEEDER CABLES. FOUND GENERATOR SOAKED WITH OIL AND GENERATOR FEEDER CABLES ARCING AND BURNED. APU WAS FOUND LOW ON OIL. 08-31-07 REPLACAug 6, 2007 · N785UA · Boeing 777222SDR 2007UALA02656Oil Cooler · failedAPU FAILED DURING TAXI OUT WITH FAIL LIGHT ILLUMINATED. [08-17-07] REPLACED OIL COOLER RAN APU WITH FULL LOAD 35 MIN, AND NO AUTO SHUTDOWN. OPS CHECK NORMAL AT THIS TIMEJul 14, 2007 · N677UA · Boeing 767322SDR 2007UALA02418Oil System · leakingCREW REPORT, 280 MILES FROM DESTINATION GOT BURNED AIR COND DUCT OR OVERHEAT ODOR FROM ROW 10 TO COCKPIT. APU OIL LEAKING INTO BLEED AIR SYSTEM. APU REMOVED AND REPLACED.Jul 5, 2007 · N816UA · Airbus A319131SDR AALA20071215Oil System · leakingDFW - INFLIGHT T848/29JUN - CREW REPORTED SMOKE IN CABIN. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND AUXILIARY POWER UNIT (APU) LEAKING OIL. REPLACED APU ON 01 JUL 2007 AT DFW. SYSTEM GROUND CHECKED NORMAL OPERATION.Jun 29, 2007 · N481AA · Doug DC982SDR HALA0700272Oil System · fluctuatesETOPS SIGNIFICANT SYSTEM, APU OIL QTY FLUCTUATES BETWEEN .50 AND FULL. SHUT DOWN APU AND CHECKED OIL LEVEL. ADDED 1/2 PINT OIL. STARTED APU NO OIL LEAKS NOTED. EICAS READS FULL. OK FOR SERVICE.Jun 29, 2007 · N582HA · Boeing 76733ASDR QXEA200701025Filter · unknownPDX - AFTER TAKEOFF ON FLIGHT 2527, THE APU FAULT CAUTION ILLUMINATED ALONG WITH AUTO SHUTDOWN OF THE APU. DUE TO ONE IDG ALREADY BEING ON MEL, RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE REPLACED THE APU FUEL FILTER. OPERATIONAJun 23, 2007 · N612QX · Cndair CL6002C10SDR DLM88070736Line · looseAFTER TAKEOFF (APPROX 60 SECOND) ALL 3 LAV SMOKE DETECTORS SOUNDED FA'S AND PAX'S REPORTED SMOKE SMELL AND HAZE EMERG RETURN TO ATL. FOUND OIL CONTAMINATION IN APU INLET. LK CKD APU. FOUND B-NUT LEAKING ON OIL LINE AFT FILTER MODULE. TIGHTENED SAME. LK Jun 17, 2007 · N910DL · Doug MD88SDR AALA20071076Oil Tank · leakingYYZ INFLIGHT T1311/11JUN - CREW REPORTED ODOR AND HAZE IN CABIN DURING ROTATION. RETURNED TO YYZ AND LANDED WITHOUT INCIDENT. FOUND OIL DRIPPING FROM APU INLET AND OIL TANK OVER SERVICED. ACCOMPLISHED WORK CARD 21 96 01 FOR CABIN ODOR AND PACK BURN WORKCARJun 11, 2007 · N962TW · Doug DC983SDR DLM88070697Pressure Switch · leakingON PUSHBACK, APU SHUTDOWN AS CABIN FILLED WITH SMOKE. MTC IN PROGRESS ON APU AND DUCT BURNOUT. FND APU LOW OIL PRESSURE SWITCH LEAKING OIL. REPLACED SAME, NO LEAKS NOTED. WHILE PERFORMING OP 5089 APU AUTO SHUTDOWN FOR LOW OIL PRESSURE. REPLACED ECU AS PREJun 7, 2007 · N937DL · Doug MD88SDR RAIA00706004Oil System · overservicedFLT NR 5469 - STL - VISIBLE SMOKE IN COCKPIT AND CABIN. MAINTENANCE INSPECTED THE AIRCRAFT AND DETERMINED THAT THE APU OIL WAS OVERSERVICED. MAINTENANCE DRAINED THE OIL AND OPS CHECKED THE BLEED SYSTEM. OPS CHECKED GOOD.Jun 5, 2007 · N809HK · Emb EMB145SDR AMTA200700215Filter · dirtyAPU FAILED TO START, APU FAULT MESSAGE - ECU SHOWS LOP SHUTDOWN. FOUND DELTA P ON OIL PRESS FILTER POPPED REPLACED FILTER. RESET DELTA P, RAN APU NO FAULTS NOTED. (K)May 3, 2007 · N522AT · Boeing 75723NSDR AMTA200700188Oil Cooler · unknownAPU AUTO SHUTDOWN. RESTART UNSUCCESSFUL. (K) REMOVED AND REPLACED OIL COOLER. LEAK CHECK GOOD. APU CHECKS GOOD. (K)Apr 11, 2007 · N561TZ · Boeing 75733NSDR C2XA07RI013Oil System · overservicedFLT 2287, CREW REPORTED COCKPIT SMELLS OF SMOKE WHEN PACK NR 2 IS SELECTED. MX INSPECTED APU AND FOUND SIGNS OF EXCESSIVE OIL SERVICE. MX CLEANED APU AREA AND PERFORMED OPS CHECK OF PACK NR 2. OPS CHECK GOOD, NO SIGNS OF SMOKE FOUND.Apr 1, 2007 · N12142 · Emb EMB145XRSDR BB07031Apu · leakingFLIGHT 1228, FLL-CLT: DURING FLIGHT, CREW REPORTED AN OVERHEAT ODOR AND THE 2L LAV SMOKE DETECTOR SOUNDING. FLIGHT LANDED IN CLT WITH NO DIFFICULTIES. MAINTENANCE PLACED THE LEFT PACK ON MEL 21-5101 AND REPLACED THE 2L LAV SMOKE DETECTOR. SUBSEQUENT TROUBLMar 30, 2007 · N923UW · Boeing 757225SDR 2007UALA00951Pump · malfunctionedAPU OIL CONSUMPTION IS EXCESSIVE. [SUP 4-20-07] APU WAS REMOVED FROM AIRCRAFT FOR HIGH OIL CONSUMPTION. OIL CONSUMPTION WAS INVESTIGATED AND CONFIRMED IN THE TEST CELL. THE LRU OIL PUMP WAS REPLACED AND ALL HOC WAS GONE. WITH PROPER TROUBLESHOOTING, THISMar 29, 2007 · N666UA · Boeing 767322SDR DL76L070182Pump · malfunctionedON ENG START APU FAULT LIGHT ILLUM AND AUTO S/D ON PUSH BACK. APU ECU FAULTED LOW OIL PRESS SW PREV REPLACED. REPLACED OIL LUBE PUMP AND ECU APU NOW STARTS AND RUNS. ATTEMPTED ENG ST WAS SUCCESSFUL LEAK CHECK OK A/C RTS WITH FULL SERVICE APU PUMP MFG NR 388Mar 1, 2007 · N183DN · Boeing 767332SDR DL76L070163Oil Cooler · defectiveAPU SHUTDOWN AFTER ENG START. PERFORMED APU BITE. BITE SHOWS HIGH OIL TEMP. REPLACED OIL TE SWITCH PER M/M. APU SHUTS DOWN AFTER 10 MIN. T/S PER FIM 49-11-00 FIG 110 DOWN TO SHEET 4 STEP 9 155986. CONT T/S NE OIL COOLER BYPASS VALVE 155986. REPLACED AIR/Feb 27, 2007 · N171DN · Boeing 767332SDR S2YA07002Apu · oil consumptionDURING CLIMBOUT OF FLIGHT 2189 MKE-CLE THE CREW NOTE AN AMBER APU LIMIT EXCEEDANCE MESSAGE. THE SYSTEMS PAGE INDICATED LOW OIL PRESSURE. IT WAS DETERMINED THAT SINCE THE RIGHT DC GENERATOR WAS ALREADY ON MEL THAT THE AIRCRAFT WOULD HAVE TO RETURN TO MKE. THFeb 23, 2007 · N352 · Dorner DO328300SDR AALA20070370Oil System · leakingAFTER TAKEOFF, CREW REPORTED SMOKE AND FUMES IN CABIN. LANDED MCI WITHOUT INCIDENT. FOUND AUXILLIARY POWER UNIT (APU) LEAKING OIL AND INGESTING OIL INTO INLET. REPLACED APU ON 27 FEB AT RDU. SYSTEM GROUND CHECKED NORMAL OPERATION.Feb 19, 2007 · N297AA · Doug DC982SDR DLM88070134Line · leakingON TAKEOFF AND ENGINE START ODOR FROM A/C SYSTEM CAUSED SMOKE DETECTORS IN REAR TO GO OFF. ODOR DISSIPATED AFTER 15 MINUTES BUT STILL LINGERS A BIT IN CLIMB. FOUND APU OIL LINE B NUT LOOSE. TIGHTENED SAME LEAK CKS GOOD CLEANED INLET. PERFORMED PHEN SYS DUCFeb 15, 2007 · N904DE · Doug MD88SDR AMTA200700063Apu · unserviceableAPU OIL QTY WENT TO .50 AFTER 47 MIN INTO FLIGHT 27 MIN. ABOVE 20K CRUISE AT 35K. MANUALY SHUT APU DOWN. REMOVED AND REPLACED APU USING M57-49-02. OPS CHECK OK. (K)Feb 11, 2007 · N552TZ · Boeing 75733NSDR AALA20070292Apu · leakingORD INFLIGHT T313 - FLIGHT ATTENDANTS REPORTED ELECTRICAL SMELL MIXED WITH SMELL OF BURNED PLASTIC. DECK NEAR AFT FLIGHT ATTENDANT JUMPSEAT SLIGHTLY WARM. BOTH AFT LAVATORY SMOKE ALARMS SOUNDED. AIRCRAFT RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPLACEFeb 5, 2007 · N642AA · Boeing 757223SDR DL757070080Oil Cap · missingWITH THE RT ENG GEN ON MCO AND THE APU RUNNING IN FLIGHT, THE CREW GOT AN APU LOW OIL QTY MESSAGE. LATER THE APU SHUT DOWN AND THE A/C WAS DOWN TO A SINGLE ELECTRICAL SOURCE. IDG REPLACEMENT AND APU T/S IN WORK OPEN COWLING SERVICED APU. RAN APU. FOUND OILFeb 4, 2007 · N621DL · Boeing 757232SDR AALA20070251Apu · leakingTUS INFLIGHT T1926/02FEB - FLIGHT ATTENDANT REPORTED SMOKE IN CABIN FROM COCKPIT TO SEAT ROW 12. TURNED OFF RECIRCULATION FAN AND FLIGHT ATTENDANTS THOUGHT SMOKE BEGAN TO DISSIPATE. RETURNED TO TUS AND LANDED WITHOUT INCIDENT. FOUND RIGHT AIR CYCLE MACHINE Feb 2, 2007 · N7536A · Doug DC982SDR AMTA200700053Valve · unserviceableLEVELED OFF AT CRUISE 20 MIN AFTER DEPARTURE, APU LEVELED OFF AT CRUISE 20 MIN AFTER DEPARTURE, APU OIL QTY SHOWED FULL. 30 MINUTES LATER OIL QTY SHOWED 50. REMOVED AND REPLACED GEARBOX PRESSURE REG VALVE IAW AMM 49-27-12-4. RAN APU 1 HR, APU OPS CHS NORMALFeb 2, 2007 · N552TZ · Boeing 75733NSDR TSAA0749010Oil Cooler · unknownAIRCRAFT GROUND EVENT IN SNA, THE APU AUTO SHUTDOWN FOR HIGH OIL TEMPERATURE INDICATION AND FAULT CODE 49-91005. MAINTENANCE PERFORMED FIM TASK 49-90-00-810-801, REMOVED AND REPLACED THE APU OIL COOLER PER AMM 49-91-41-000-801. MAINTENANCE ALSO REMOVED AND RJan 27, 2007 · N738AL · Boeing 73773ASDR AALA20070165Reservoir · emptyBUR - SMOKE IN CABIN AFTER LANDING AND THE APU AIR SWITCH WAS SELECTED ON. UPON REACHING THE GATE, THE APU WAS TURNED OFF AND SMOKE DISSIPATED RAPIDLY AFTER DOORS OPEN. REPLACED COALESCER BAGS FOR LEFT AND RIGHT AND PACKS. FOUND APU OIL RESERVOIR EMPTY AND Jan 22, 2007 · N591AA · Doug DC983SDR AALA20070094Apu · leakingDFW INFLIGHT T1200/15JAN AFTER TAKE OFF BLUE HAZE WAS REPORTED IN CABIN. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. SMOKE DISSIPATED PRIOR TO LANDING. AIRCRAFT TAKEN OUT OF SERVICE FOR EVALUATION. FOUND APU LEAKING OIL. CHANGED APU AND ACCOMPLISHED PACJan 15, 2007 · N484AA · Doug DC982SDR DLM88070025Oil Cap · leakingDURING T/O, STRONG ODOR AND HAZE IN AFT CABIN. FOUND APU OIL CAP LEAKING AND APU INGESTED OIL. FOUND OIL LEAKING PAST OIL FILLER CAP SEAL. REPLACED CAP AND SEAL SERVICED TO FULL. CLEANED AREA LEAK CKS GOOD. REMOVED AND REPLACED COALESCER BAGS AND PERFORMJan 11, 2007 · N917DL · Doug MD88SDR HALA0700020O-Ring · cutETOPS SIGNIFICANT SYSTEM, APU HAD AUTO SHUTDOWN. FAULT LIGHT ILLUMINATED. EICAS MESSAGE APU FAULT DISPLAYED (NOTE: OIL .5 NOW .75 EGT WAS 770 DEGS). OK FOR SERVICE PER FIM 49-11-00 FIM SERVICED APU OIL AND REPLACED APU CAP O-RING, NO LEAKS NOTED.Jan 6, 2007 · N590HA · Boeing 767300SDR AMTA200700005Housing · unserviceableAPU LOW OIL PRESSURE LIGHT BLINKED THEN CAME ON STEADY. APU SHOT DOWN. TROUBLESHOOT IAW FIM REF 49-90-00-810-803. REMOVED AND REPLACED OIL FILTER HOUSING AND DIFF. PRESSURE INDICATOR IAW AMM 49-91-13-4 RAN APU, NO LEAKS OR FAULTS DETECTED. OK FOR SERVICE.Jan 4, 2007 · N315TZ · Boeing 73783NSDR HALA0700007Apu · inoperativeETOPS SIGNIFICANT SYSTEM, APU FAIL EICAS AND NO APU START ON TAXI IN. APU FAULT. APU OIL SHOWS ADD THEN .25 ON BLOCK IN. REMOVED AND REPLACED APU PER HAL M266-767, OPS CHECK NORMAL REMOVED PLACARD.Jan 4, 2007 · N585HA · Boeing 767300SDR 2007UALA00031Oil Cooler · cloggedFLIGHT DIVERTED DUE TO FAILED APU. FOUND APU OIL COOLER AIR T INLET CLOGGED. REPLACED OIL COOLER. LEAK CHECK GOOD.Jan 3, 2007 · N848UA · Airbus A319131SDR HALA0700001Oil System · lowETOPS SIGNIFICANT SYSTEM, APU AUTO SHUTDOWN. PERFORMED FIM 49-11-00 FOUND OIL PRESS ON ECU, ADDED 6 PINTS OF OIL CLEARED ECU FAULT RAN APU FOR 20 MIN SHUT DOWN APU PERFORMED BITE WITH NO FAULTS FOUND PERFORMED LEAK CHECK WITH NO LEAKS.Jan 1, 2007 · N594HA · Boeing 767332SDR HALA0600899Oil Cooler · blockedETOPS SIGNIFICANT SYSTEM, APU AUTO SHUT DOWN WITH HIGH OIL TEMP ECU FAULT. REMOVED AND REPLACED APU OIL COOLER ASSY PER AMMM 49-27-09-004 AND 49-27-09-404.Dec 13, 2006 · N585HA · Boeing 767300SDR DLM88061013O-Ring · cutBOTH AFT SMOKE DETECTORS SOUNDED JUST AFTER TAKEOFF F/A REPORTED SMOKE AND FUME SMELL IN AFT CABIN. FOUND APU OIL CAP O-RING BAD. REPLACED OIL CAP PERFORMED. ALSO OPN 5089 DUCT BURNOUT. REPLACED COALESCER BAGS SYS NOW OK.Dec 9, 2006 · N990DL · Doug MD88SDR DL76G060996Control Valve · unknownIN RTE FROM JFK-ATL, WITH R ENG GEN INOP AND ON MCO. APU AUTOSHUTDOWN OCCURRED. CREW ELECTED TO DIVERT TO CLT. CLT MTC REMOVED AND REPLACED APU PER M/M. LK CK GOOD. DURING OPERATIONAL CK APU BLEED DUCT PRESS FLUCTUATES BETWEEN 15 T 22 PSI W/NO LOAD APPLIENov 29, 2006 · N16065 · Boeing 767332SDR CA061117006Apu · overserviced(CAN) APPROXIMATELY 10 MINUTES FROM DESTINATION, AIRCRAFT DECLARED AN EMERGENCY DUE TO SMOKE IN THE LAVATORY. AIRCRAFT WAS DESCENDING THROUGH 5,000 FT WHEN THE BLEEDS WERE SWITCHED FROM ENGINES TO APU. WITHIN A SHORT PERIOD OF TIME A BURNT OIL SMELL WAS OBSERVNov 13, 2006 · Cndair CL6002B19SDR AALA20061038O-Ring · leakingORD - AFTER TAKEOFF CREW REPORTED SMOKE IN FORWARD PART OF CABIN. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. FOUND APU OIL LEAK. REPLACED O-RING AND PERFORMED HIGH PRESSURE PNEUMATIC DUCTING BURN OUT. SYSTEM GROUND CHECKED NORMAL OPERATION.Nov 11, 2006 · N7541A · Doug DC982
Back to JASC 4990