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 ASAA12510905Filter Element · defectiveFOUND THE LUBE OIL MODULE OIL FILTER INDICATOR EXTENDED. PERFORMED OIL FILTER INDICATOR INSPECTION REF MM 49 91 13 200 801. REPLACED LUBE FILTER ELEMENT & RESET OIL FILTER INDICATOR REF MM 49 91 13 600 801. SERVICED APU OIL TO FULL REF MM 12 13 31.Jan 6, 2012 · N588AS · Boeing 737890SDR USAA2012010400020Valve · leakingA SLIGHT DIRTY SOCK SMELL WAS REPORTED ON CLIMBOUT AND AGAIN ON DESCENT. MAINTENANCE PLACED NR 1 PACK ON MEL. DURING TROUBLESHOOTING ON 12/31/2011, FOUND APU DE-OIL VALVE LEAKING. REMOVED AND REPLACED VALVE.Dec 29, 2011 · N626AW · Airbus A320231SDR CA120103001Filter · collapsed(CAN) A COLLAPSED FILTER WAS FOUND DURING SCHEDULED REPLACEMENT OF THE AUXILIARY POWER UNIT OIL FILTER ELEMENT IAW TASK 000-49-360-714, 2000 HOURS INTERVAL. THE FILTER WAS REPLACED, LEAK CHECKED AND THE ACFT RELEASED FOR SERVICE. THE FILTER HAS NO TRACE OF CODec 28, 2011 · Cndair CL6002C10SDR UALA2011122707115Oil System · overservicedAPU QUIT AFTER ONE ENGINE START WITH FAULT ILLUMINATION. FOUND OIL OVER SERVICED. PROPERLY SERVICED, OPS CHECKED GOOD.Dec 27, 2011 · N505UA · Boeing 757222SDR USAA2011122700032Sight Glass · looseAIRCRAFT HAD A SMELLY SOCK ODOR ON TAKEOFF AND APPROACH. MAINTENANCE FOUND THE APU OIL SIGHT GLASS LEAKING. RETORQUED SIGHT GLASS WITH NO FURTHER LEAK NOTED.Dec 26, 2011 · N813AW · Airbus A319132SDR VNAA2011122900015Switch · defectiveCREW REPORTED APU OIL PRESSURE CAUTION MESSAGE IN CRUISE FLIGHT AFTER DEPARTURE FROM PHL. CREW FOLLOWED QRH, RETURNED TO PHL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, REMOVED AND REPLACED APU LOP (LOW OIL PRESSURE) SWITCH AND PERFORMED CHECKS USINGDec 25, 2011 · N251PS · Cndair CL6002B19SDR ASAA11510852Sensor · defectiveAPU OIL QTY READ AT CDU READS LOW APU OIL QTY AT TANK IS FULL. REPLACED APU OIL LEVEL SENSOR REF 49 94 11, GROUND OPS CK VERIFICATION GOOD.Dec 23, 2011 · N577AS · Boeing 737890SDR USAA2011122300018Oil System · overservicedSTRONG ODOR STARTED IN CABIN AND FLIGHT DECK ON DESCENT THROUGH APPROXIMATELY 3000FT. ALL CREW MEMBERS AND MANY PASSENGERS NOTICED THE ODOR. MAINTENANCE FOUND APU TO BE OVER-SERVICED. RE-SERVICED TO PROPER LEVEL WITH NO LEAKS NOTED.Dec 22, 2011 · N769US · Airbus A319112SDR UALA2011122107036Unknown · malfunctionedAPU SHUTDOWN APU AUTO-SHUTDOWN HAS OCCURRED. REFERENCE LOGIC DESCRIPTION FOR DETAILS (ADVISORY). CREW COMMENTS: APU AUTO SHUT DOWN 2 TIMES. MAINT IS SHOWING APU HIGH OIL TEMP. 100C ON SCREEN. MAINT MESSAGE 49-10260. -INF- :REF FIM 49-20 TASK 801 FOR HIGH Dec 19, 2011 · N229UA · Boeing 777222SDR ASAA11510814Filter Element · defectiveWHILE PERFORMING T/C 78349005 FOUND THE OIL FILTER INDICATOR ON LUBE FILTER HOUSING OF THE APU EXTENDED. REMOVED & REPLACED OIL FILTER ELEMENT REF MM 49 91 12. LEAK CHECK GOOD. REMOVED & REPLACED OIL FILTER INDICATOR REF MM 49 91 31. LEAK CHECK GOOD.Dec 18, 2011 · N566AS · Boeing 737890SDR USAA2011121900001Regulator · leakingFLIGHT 733, LGW-CLT - MALODOROUS SMELL ON APPROACH, ZONE C & AFT GALLEY AREA. MAINTENANCE PERFORMED CABIN AIR QUALITY JOB CARD 33L00021001. FOUND APU LEAKING OIL INTO AIR INLET, REMOVED AND REPLACED APU OIL TEMPERATURE COOLER REGULATOR. EXTENSIVE ENGINE RUNDec 16, 2011 · N278AY · Airbus A330323SDR USAA2011121500018Line · looseACRID, DIRTY SOCK ODOR THROUGHOUT AIRCRAFT BEGINNING AT TAXI OUT AND LIFT OFF. ODOR GOT PROGRESSIVELY WORSE EN ROUTE TO LAX. MAINTENANCE TIGHTENENED DE-OIL SOLENOID FEED LINE IAW AIRBUS MAINTENANCE MANUAL 20-21-12-911-001 AND COMPLIED WITH APU CLEANING / DECDec 13, 2011 · N626AW · Airbus A320231SDR DALA1167920976Oil Cap · leakingFLIGHT ATTENDANT REPORTED SMOKE IN THE CABIN WITH THE LAV SMOKE DETECTORS SOUNDING AT TAKEOFF. MAINTENANCE FOUND THE APU HAD INJESTED OIL. THE OIL CAP WAS REPLACED. APU INLET CLEANING WAS ACCOMPLISHED AND LEAK CHECK WAS GOOD.Dec 5, 2011 · N976DL · Doug MD88SDR ASAA1150756Filter · defectiveACCOMPLISH OIL FILTER INDICATOR SERVICING FOUND APU OIL FILTER DELTA P INDICATOR EXTENDED WHILE ACCOMPLISHING T/C #78349013. ACCOMPLISHED OIL FILTER INDICATOR SERVICING IN REF TO M/M 49 91 13 LEAK CHECK GOOD AS REQUIRED BY T/C #78349013.Dec 5, 2011 · N593AS · Boeing 737890SDR AALA20111202LAS01Apu · dirtyLAS - CREW REPORTED SMOKE IN CABIN AFTER TAKEOFF. EMERGENCY DECLARED FLIGHT RETURNED LAS LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND EXCESSIVE RESIDUAL OIL FROM AUXILIARY POWER UNIT. CLEANED AREA AND DRAINED OIL. ACCOMPLISHED PACK BURNOUDec 2, 2011 · N984TW · Doug DC983SDR ASAA11510741Filter Element · unserviceableAPU OIL FILTER INDICATOR SERVICING REQUIRED PER T/C 78349013. ACCOMPLISHED APU OIL FILTER INDICATOR SERVICING REF MM 49 91 13 600 801.Dec 1, 2011 · N568AS · Boeing 737890SDR ASAA11510718Indicator · defectiveREF TASK CARD NUMBER 78349013 APU OIL FILTER DELTA P INDICATOR EXTENDED. ACCOMPLISHED OIL FILTER DELTA P INDICATOR SERVICING REF TASK 49 91 13 NO CONTAMINATION NOTED ON EITHER MAGNETIC DRAIN PLUG OR OIL FILTER ELEMENT. REPLACED DELTA P INDICATOR. WOULD NOT Nov 27, 2011 · N560AS · Boeing 737890SDR USAA2011112300014Fitting · leakingCREW REPORTED A DIRTY SOCK ODOR IN CABIN AND FLIGHT DECK OUT OF 10'000 FEET. MAINTENANCE FOUND OIL LEAKS AT APU OIL TANK QUICK DISCONNECTS AND APU OIL SCAVENGE TUBES. REPLACED QUICK DISCONNECT FITTINGS AND PACKINGS ON OIL SCAVENGE TUBES.Nov 21, 2011 · N657AW · Airbus A320232SDR UALA2011111406224Line · crackedAPU OIL CONSUMPTION ABOVE LIMIT. WHILE PREPPING FOR APU CHANGE FOUND FLOW SENSING MODULE LOOSE AND MISSING. MOUNT HARDWARE FOUND IN CONTACT WITH SCAVANGE LINE BELOW SHOP. TESTED LINE. FOUND CRACKED AND LEAKING. REPLACED LINE AND INSTALLED MOUNT HARDWARE.Nov 14, 2011 · N646UA · Boeing 767322SDR UALA2011111406230Pressure Switch · faultyAPU START FAULT X2. REPLACED OIL PRESSURE SWITCH, OPS CHECKS GOOD.Nov 12, 2011 · N659UA · Boeing 767322SDR ASAA11510651Filter · defectiveAPU LUBE FILTER DELTA P INDICATOR EXTENDED. PERFORMED OIL FILTER INDICATOR INSPECTION. REPLACED LUBE FILTER ELEMENT NO CONTAMINANTS FOUND ON MAGNETIC DRAIN PLUG. RAN APU STILL NO CONTAMINANTS FOUND ON MAGNETIC DRAIN PLUG AND FILTER HOUSING INDICATOR REMAINENov 11, 2011 · N568AS · Boeing 737890SDR USAA2011111000016Cooling Fan · leakingFLIGHT ATTENDANTS REPORTED A STRONG BURNING ODOR NEAR 3L DOOR. MAINTENANCE FOUND APU OIL COOLING FAN LEAKING. REPLACED FAN. ALSO FOUND APU OVER-SERVICED BY 1.25 QTS OIL, CORRECTED TO PROPER LEVEL. CLEANED APU LOAD COMPRESSOR AND REPLACED HEPA FILTERS.Nov 7, 2011 · N180US · Airbus A321211SDR UIEA2011110700640Oil System · lowAPU FAILED TO START TWICE AFTER LANDING, OIL QTY SHOWS .25 (SERVICED APU ENGINE OIL WITH 1.5 QTS IAW AMM 49-90-00. NO LEAKS NOTED IN APU COMPARTMENT APU OPERATES NORMAL. BITE CHECK SHOWS NO FAULTS.)Nov 5, 2011 · N641GT · Boeing 76738ESDR ASAA1150608Oil Cooler · defectiveAPU IS INDICATING INCREASE IN OIL CONSUMPTION. CURRENT CONSUMPTION RATE IS .08 QPH. REPLACED APU OIL COOLER REF MM 49 91 41. LEAK CHECK OK.Oct 30, 2011 · N562AS · Boeing 737890SDR UALA2011102605802Oil System · leakingCREW COMPLAINED OF STRONG ODOR IN CABIN WITH APU BLEED AND PACKS ON. SUSPECT OIL ODOR COMING FROM APU. ACCOMPLISHED TASK 49-10-808. FOUND LOAD CONTROL VALVE WITH OIL LEAK AND OIL FROM TAILPIPE, NO OIL IN OIL TANK, HAVE STATUS MESSAGE APU AND APU OIL SHOWS 0Oct 26, 2011 · N769UA · Boeing 777222SDR ASAA11510592Apu · contaminatedWET SOCK SMELL IN CABIN DURING DESCENT INTO PDX BELOW 10 000 SMELL ESPECIALLY STRONG DISSIPATED SLIGHTLY BELOW 6 000 FT. ACCOMP CABIN ODOR T/S PER MM 05 60 00 280 801C1. FOUND APU TO BE SOURCE. OIL FOUND IN DRAIN LINE FOR APU LOAD COMPRESSOR CASE. ACCOMP OOct 26, 2011 · N518AS · Boeing 737890SDR REXA201100778Oil System · overservicedSMOKE TOILET MSG ON TAKEOFF/INITIAL CLIMB. NO DEICING. OILY SMELL COMING FROM LAVATORY & AFT CABIN. COMPLIED WITH WORK SCOPE FOR SMOKE/FUMES IN CABIN/ FLIGHT DECK. INSPECTED APU FUEL OIL LEAKS IAW AMM 49-10-00. NO DEFECTS NOTED. REMOVED AND REPLACED LT AOct 25, 2011 · N8505Q · Cndair CL6002B19SDR HALA2011102400486Oil System · lowETOPS SIGNIFICANT SYS - AT GATE APU AUTO SHUTDOWN. BITE CHECKED ECU FOUND LOW OIL PRESSURE FAULT, SERVICED APU WITH 2.5 QTS, RAN APU NO LEAKS NOTED, OK FOR SVC.Oct 24, 2011 · N596HA · Boeing 767332SDR DALA1158840964Oil Cap · unserviceableFLIGHT ATTENDANTS REPORTED SMOKE IN THE AFT CABIN DURING CLIMB. COCKPIT CREW DIVERTED THE FLIGHT TO CVG AND LANDED WITHOUT FURTHER INCIDENT. NO EVIDENCE OF FIRE WAS FOUND AND NO EXTINGUISHERS WERE USED. MAINTENANCE IN CVG FOUND APU OILCAP LEAKING AND OIL COOct 18, 2011 · N964DL · Doug MD88SDR USAA2011101900011Module · leakingFLIGHT ATTENDANTS REPORTED A DIRTY SOCK ODOR AND SYMPTOMS OF NAUSEA AND DIZZINESS. MAINTENANCE FOUND OIL LEAK ON OIL LUBE MODULE. REMOVED AND REPLACED IAW MM 49-91-45.Oct 16, 2011 · N113UW · Airbus A320214SDR UALA2011101705585Oil System · lowAPU FAULT AND SHUTDOWN TWICE AFTER LANDING. BITE CHECK ECU FAULTS GEN FILTER CLEANED PRESS SW, NO HELP. GEN FILTER DPI IS NOT POPPED. SEE HISTORY. FOUND OIL ONE QT LOW. ECU BITE HAD NO FAULTS RECORDED. START AND RUN FOUR TIMES FOR TOTAL OF ONE HOUR. APUOct 16, 2011 · N552UA · Boeing 757222SDR ASAA11510505Indicator · defectiveFOUND APU OIL FILTER INDICATOR EXTENDED. PERFORMED OIL FILTER INDICATOR SERVICING TASK REF AMM 49 91 13 600 801 RESET DPI INDICATOR. REPLACED LUBE FILTER ELEMENT REF AMM 49 91 12. RAN APU AND OIL FILTER INDICATOR EXTENDED AGAIN. REPLACED OIL FILTER INDICATOct 11, 2011 · N562AS · Boeing 737890SDR ASAA11510488Indicator · defectiveAPU LUBE FILTER DIFFERENTIAL FILTER INDICATOR HAS HISTORY OF INDICATOR FOUND EXTENDED WITH FILTER FOUND CLEAN. REPLACED APU OIL FILTER INDICATOR PER AMM 49 91 13 000 802 LEAK & OPS CHECK GOOD INDICATOR DID NOT EXTEND WHILE APU OPERATED.Oct 9, 2011 · N562AS · Boeing 737890SDR ASAA11510622Nut Plate · severedWHILE PERFORMING TSR 905670 FOUND OIL COOLER FIRE SHIELD BRACKET NUT PLATE SEVERED. ON DEFERRAL.Oct 3, 2011 · N562AS · Boeing 737890SDR ASAA11510461Filter Element · defectiveAPU OIL FILTER INDICATOR PIN EXTENDED. REPLACED APU OIL FILTER AND INDICATOR PER AMM 49 91 13. OP'S CHECK AND LEAK CHECK GOOD.Oct 2, 2011 · N534AS · Boeing 737890SDR USAA2011100400014Packing · leakingVERY STRONG DIRTY SOCK ODOR FROM CABIN AIR. MAINTENANCE FOUND OIL LEAK AT COOLING FAN. REPLACED PACKING.Oct 2, 2011 · N675AW · Airbus A320232SDR ASAA11510453Filter Element · dirtyDURING EPDC FOUND LUBE FILTER BYPASS PIN POPPED. REPLACED LUBE FILTER REF M/M 49 91 12 000 802 AND 49 91 12 400 802. NO LEAKS NOTED. OK FOR SERVICE.Sep 30, 2011 · N562AS · Boeing 737890SDR CA110921002Stud · broken(CAN) ON TAXI OUT ACFT LOST APU CAME BACK TO GATE, FOUND APU STUD MISSING THAT HOLDS OIL LINE IN PLACE CAUSED AUTO SHUTDOWN. APU BAY WAS COMPLETLY COVERED IN OIL. CLEANED UP ALL VISIBLE OIL , CHECKED DUCTS NO OIL FOUND. APU PUT ON MEL AND NEXT TAKEOFF ABORTESep 19, 2011 · Cndair CL6002B19SDR ASAA11510402Filter Element · faultyAPU FAULT LIGHT ILLUMINATED ON PRE FLIGHT. PERFORMED APU BITE CHECK FOUND FAULT CODE 49 94299 STARTER GENERATOR FILTER ELEMENT. REPLACED STARTER GENERATOR FILTER ELEMENT OPS AND LEAK GOOD PER AMM 49 91 12 000 803. RAN APU CURRENT STATUS NO FAILURE FOUND.Sep 19, 2011 · N589AS · Boeing 737890SDR USAA2011091500003Oil System · overservicedDURING CRUISE (APPROXIMATELY 1 HOUR FLIGHT), FLIGHT ATTENDANTS REPORTED AN ODOR OF DIRTY SOCKS/BURNING OIL SMELL IN THE AREA OF SEAT ROWS 18-23. WHEN APPROACHING ROW 18 IT WAS LIKE WALKING INTO A WALL OF ODOR. ON DESCENT, IT SEEMED TO DISSIPATE AND WE ISOLATSep 14, 2011 · N441US · Boeing 7374B7SDR USAA2011090900028Apu · leakingCREW REPORTED OILY, DIRTY SOCK ODOR THROUGHOUT ENTIRE AIRCRAFT AT TOP OF DESCENT UNTIL LANDING. MAINTENANCE FOUND EVIDENCE OF APU LEAK. REMOVED AND REPLACED THE APU.Sep 6, 2011 · N664AW · Airbus A320232SDR UALA2011090504779Pressure Switch · faultyAPU AUTOSHUTDOWN ON THE GROUND. REPLACED GEN OIL PRESSURE DIFFERENTIAL SWITCH PER MM, OPS NORMAL.Sep 4, 2011 · N657UA · Boeing 767322SDR ASAA11510335Filter Element · defectiveAPU FILTER DELTA P INDICATOR RED BUTTON HAS EXTENDED. REPLACED OIL FILTER AS PER AMM 49 91 13 RUN APU NO LEAK NOTED. PERFORMED MAGNETIC DRAIN PLUG INSPECTION AS PER AMM 49 91 81. NO MAGNETIC ELEMENT PARTICLE FOUND.Sep 3, 2011 · N562AS · Boeing 737890SDR ASAA11510336Filter Element · defectiveCLOGGED FILTER INDICATION BUTTON POPPED OUT ON APU LUBE OIL FILTER. REPLACED CLOGGED FILTER INDICATOR FILTER BOWL BOTH OIL FILTER NO MATERIAL OR DEBRIS IN FILTER OR ON MAGNETIC CHIP DECTOR OPS AND LEAK CK OK REF AMM 49 91 13 600 801, OK FOR SERVICE.Sep 2, 2011 · N584AS · Boeing 737890SDR UALA2011081904411Pressure Switch · faultyAPU AUTO SHUTDOWN AT GATE WITH ELEC LOAD BUT NO AIR LOAD .CHRONIC. REPLACED GENERATOR OIL FILTER DIFFERENTAL PRESSURE SWITCH PER AMM. STARTED APU TWICE AND APPLIED ELEC AND PNEU LOAD. APU RUNS OKAY.Aug 19, 2011 · N551UA · Boeing 757222SDR UALA2011081804397Duct · failedAPU DID AUTO SHUTDOWN AND HAD STATUS MESSAGE. FOUND APU OIL COOLER DUCT BLOWN, REPLACED DUCT. OPS CHECKED OKAY.Aug 17, 2011 · N211UA · Boeing 777222SDR ASAA11510257Oil Cooler · obstructedAPU SHUT OFF FAULT LIGHT ILLUMINATED. PERFORMED FIM TASK 49 90 00 810 801 FOUND APU OIL COOLER OBSTRUCTED WITH DEBRIS. REMOVED AND REPLACED APU OIL COOLER REF M/M 49 91 41, OPS AND LEAK CHECKS NORMAL.Aug 16, 2011 · N532AS · Boeing 737890SDR ASAA11510231Filter Element · dirtyAPU FAULT LIGHT ILLUMINATED. FOUND FAULT CODE 49 94299. REPLACED STARTER GENERATOR FILTER ELEMENTS PER MM 49 91 12 000 801 AND 49 91 12 400 801. OPS CHECK GOOD. NO LEAKS NOTED.Aug 13, 2011 · N566AS · Boeing 737890SDR HALA2011080800354Oil System · lowETOPS SIGNIFICANT SYS - ON GROUND, OGG APU WOULD NOT START. APU FAULT CHECKED STATUS PAGE APU OIL LEVEL AT .25. ARRIVING AT GATE OIL STEADY AT .50. PERFORMED BITE CHECK OF APU ECU IAW FIM 49-11-00. NO LRU FAULTS NOTED. FOUND OIL LEVEL LOW, SERVICED OIL TOAug 8, 2011 · N589HA · Boeing 76733ASDR ASAA11510212Oil Cooler · defectiveAPU OIL CONSUMPTION CONTINUES TO BE HIGHER THAN EXPECTED CURRENT CONSUMPTION. TSR ISSUED. REPLACED APU OIL COOLER REF MM 49 91 41 400 801. LEAK AND OPS CHECK GOOD.Aug 5, 2011 · N587AS · Boeing 737890
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