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 UALA2013071204880Module · faultyAPU SHUTOFF VALVE SWITCH ON P5 PANEL WAS FOUND TO FAULTY DURING JIC TESTS. WORKS INTERMITTENTLY. REPLACED APU BLEED SWITCH MODULE (PCN 566-1200), OPS CK NORMAL.Jul 11, 2013 · N217UA · Boeing 777222SDR ASAA2013070695482Indicator · activatedDURING WALK AROUND FOR PDC. FOUND APU OIL FILTER RED BUTTON FOR OIL FILTER INDICATOR EXTENDED. ACFT GROUNDED. REPLACED APU LUBE FILTER ELEMENT INSP IAW AMM 49-91-12, NO DEFECTS NOTED. INSP MAG DRAIN PLUG IAW AMM 49-91-81. INST NEW O-RINGS, NO DEFECTS NOTEJul 6, 2013 · N537AS · Boeing 737890SDR UALA2013070304672Duct · tornFLEX DUCT BETWEEN OIL COOLER (TEMP. REGULATOR) AND OVERBOARD EXHAUST DUCT TORN. APU IS UNABLE TO BE USED AND REQUIRES GROUND START TRUCK. DUCT REQUIRED TO REPAIR IS IPC 49-11-01-001, ITEM 20, PCN 181-0477.Jul 2, 2013 · N515UA · Boeing 757222SDR DXTA2013062405423Apu · leakingSMOKE OUT OF WEMACS WITH BLEED AIR ON HIGH. FOUND OIL PRESENT AT APU INLET. REMOVED LEAKING APU AND INSTALLED A REPAIRED APU. ALL WORK PERFORMED IAW AMM 49-00-00. NO FURTHER DECECTS NOTED. OPS AND LEAK CHECKED SATISFACTORY.Jun 22, 2013 · N922QS · Cessna 750SDR UALA2013062504396Duct · crackedAPU DUCT FLANGE CRACKED IN RT WHEEL WELL BY FWD BULKHEAD. DUCT THAT GOES THRU BULKHEAD. REPLACED APU DUCT IAW AMM.Jun 20, 2013 · N574UA · Boeing 757222SDR ASAA2013061495112Apu · underservicedON APU START, BLUE MAINT LIGHT ILLUMINATED. ACFT GROUNDED. INTERROGATED APU FAULT PAGE ON CDU, FOUND APU OIL LOW FAULT. SERVICED APU GEARBOX OIL QTY TO FULL IAW AMM 12-13-31. PERFORMED APU OPS CHECK IAW AMM 49-11-00, OPS CHECK GOOD.Jun 14, 2013 · N579AS · Boeing 737890SDR ASAA2013061495110Filter Element · failedAPU OIL FILTER INDICATION RED BUTTON IS EXTENDED. ACFT GROUNDED. SERVICED OIL FILTER INDICATOR IAW AMM 49-91-13-600-801.Jun 14, 2013 · N538AS · Boeing 737890SDR UALA2013061204038Line · leakingMUSTY ODOR IN CABIN & COCKPIT. RAN BOTH PACKS IN FULL COLD FOR 15 MINUTES IAW AMM TASK 21-00-00-615-003-A, STEP 4 W, PGS 43-45. FOUND OIL LINE LEAKING AT PRESSURE SWITCH ON APU. REPLACED OIL LINE . LEAK CHECKED GOOD.Jun 11, 2013 · N456UA · Airbus A320232SDR UALA2013061304064Line · leakingFOUND OIL LINE ON APU, AFT MID LOWER GEAR CASE TO PRESSURE SWITCH LEAKING OIL WITH APU RUNNING AND BEING INGESTED INTO APU INLET BRAIDED DEFECTED LINE IS MARKED WITH TIED OFF RAG AND PART IS ORDERED AOM C1245 PCN (225-1106). REPLACED OIL LINE. LEAK CHECK GOOD.Jun 11, 2013 · N456UA · Airbus A320232SDR DXTA2013060505411Oil System · overservicedDURING THE ATTEMPTED APU START, HEAVY SMOKE WAS OBSERVED BLOWING FORWARD (ACFT WAS PARKED WITH A TAIL WIND) AND AN OILY ODOR WAS PRESENT IN CABIN. OIL COULD ALSO BE OBSERVED ON THE APU EXAUST AND ON GROUND BELOW THE APU. INSPECTED APU INLET FOR EVIDENCE OF Jun 4, 2013 · N638QS · Cessna 560XLSDR UALA2013060403873Oil System · overservicedAPU AUTO SHUTDOWN. FOUND APU OVERSERVICED CAUSING HOT OIL TEMP. SERVICED OIL TO PROPER LEVEL, OPS GOOD.Jun 3, 2013 · N550UA · Boeing 757222SDR ASAA2013052794914Indicator · false indicationAPU OIL FILTER DELTA-P INDICATOR EXTENDED, ACFT GROUNDED. R & R APU OIL FILTER & RESET INDICATOR BUTTON REF AMM TASK 49-91-13-600-801.May 27, 2013 · N563AS · Boeing 737890SDR UALA2013052803690Oil Filter · faultyCREW REPORTS APU FAILED TO START WHILE ACCOMPLISHING AN INFLIGHT START. SUP CARRIED OUT TS REF MM 49-11-00 FOUND LOW OIL PRESSURE ON ECU BITE, CONTINUED TS REF MM. REPLACED OIL FILTER. RESET ECU CARRIED OUT 3 GROUND STARTS REF JRH 2-6-15, ALL NORMAL.May 25, 2013 · N674UA · Boeing 767322SDR VQI2013F00015Oil System · leakingAFTER ENGINE SHUTDOWN AT GATE, WITH THE APU PROVIDING PNEUMATIC POWER FOR AIR CONDITIONING, CABIN BEGAN TO FILL WITH SMOKE AND STRONG BURNING OIL ODOR. FLIGHT CREW SHUTDOWN APU, SMOKE AND ODOR PROMPTLY DISSIPATED. DISCOVERED AN EXTERNAL OIL LEAK FROM APU May 24, 2013 · N639VA · Airbus A320214SDR DXTA2013052005397Oil System · overservicedWITH THE APU ONLY RUNNING, BLEED AIR WAS SELECTED ON. SMOKE IMMEDIATELY STARTED TO POUR INTO BOTH CABIN AND COCKPIT. SHUTDOWN APU WITHIN 15 SECONDS AND A CONSIDERABLE HAZE OF SMOKE REMAINED HANGING IN AIR. LOCATED OIL COMING FROM AGB VENT LINES OUT EXHAUST. May 18, 2013 · N341QS · Cessna 680CESDR USAA2013052000003O-Ring · leakingCREW COMPLAINED OF A CABIN ODOR ISSUE (DIRTY SOCK ODOR) WHEN THE APU WAS STARTED, BEFORE BOARDING OF FLIGHT. MX FOUND SMALL LEAK OF OIL FROM APU OIL SCAVENGE FILTER HOUSING. REPLACED TWO O-RINGS. LEAK CHECKED OK. ALSO, REPLACED FWD CARGO SELECTOR VALVE FORMay 18, 2013 · N812AW · Airbus A319132SDR ASAA2013051794841Indicator · false indicationAPU OIL FILTER INDICATOR FOUND EXTENDED. ACFT GROUNDED. RETURNED OIL FILTER TO SERVICABLE CONDITION. LEAK CK, NO LEAKS NOTED. OPS CK GOOD. NO CONTAMINANTS FOUND. REF AMM 49-91-13.May 17, 2013 · N508AS · Boeing 737890SDR ASAA2013051694840Indicator · false indicationAPU OIL FILTER INDICATOR EXTENDED. ACFT GROUNDED. INSPECTED CHIP DETECTOR. NO CONTAMINATION NOTED. R & R APU OIL FILTER AND FILTER INDICATOR. FILTER CLEAN. RAN APU. NO LEAKS NOTED. REF MM 49-91-12-400-802.May 16, 2013 · N584AS · Boeing 737890SDR 9JLA2013052206410Sensor · defectiveCREW REPORTED APU HAD AN UNCOMMANDED SHUTDOWN. TROUBLESHOOTING IDENTIFIED THE APU OIL TEMP SENSOR AS DEFECTIVE. A NEW SENSOR WAS INSTALLED, FUNCTIONAL AND LEAK CHECKS WERE SATISFACTORY.May 9, 2013 · N415PR · Gulstm 200SDR USAA2013050800003Oil System · overservicedAPU PNEUMATICS CAUSING ODOR IN COCKPIT AND CABIN. MAINTENANCE FOUND APU OVERSERVICED. DRAINED OIL TO PROPER LEVEL. RAN PACKS HOT AND COLD 30 MINS. NO ODOR DETECTED,May 7, 2013 · N945UW · Emb ERJ190100IGWSDR CA130506002Tube · chafed(CAN) DURING TROUBLESHOOTING OF AN INOPERATIVE APU, EVIDENCE OF OIL LEAK WAS NOTICED ON THE ACFT TAIL SECTION. APU OIL COOLER TUBE 3881849-1 WAS FOUND DAMAGED, ATTACHING CLAMP CHAFED THROUGH THE TUBE.May 1, 2013 · Cndair CL6002B19SDR ASAA2013043094658Warning Light · false activationBLUE MAINTENANCE LIGHT ILLUMINATED ON APU. MAINTENANCE MESSAGE 49-91227. LOW OIL QUANTITY. ACFT GROUNDED. PERFORMED FIMM TASK 49-90 TASK 804. CURRENT STATUS SHOWS NO FAULTS. FAULT CLEARED. VISUALLY INSPECTED OIL QTY. CHECKS FULL. IAW FIM THERE WAS AN INTApr 30, 2013 · N413AS · Boeing 737990ERSDR ASOA20130424039Oil System · overservicedCREW REPORTED A STRONG ELECTRICAL ODOR IN COCKPIT AND CABIN AT FL220. MX PERFORMED FAULT ISOLATION TASK 21-20-00-810-801A AND 21-20-00-810-803A WITH NO DEFECTS NOTED, NO FAILED ELECTRICAL COMPONENTS OR FLUID LEAKS NOTED. RAN ENGINES, APU, AND AIR CONDITIONINApr 24, 2013 · N11107 · Emb EMB145XRSDR USAA2013042400005Housing · leakingFLIGHT ATTENDANT REPORTED A STRONG DIRTY SOCK SMELL ON TAKEOFF (SHORT TIME) AND DESCENT THROUGH LANDING AND TAXI-IN. APU OFF. MAINTENANCE FOUND AN APU OIL LEAK AT THE CHIP DETECTOR HOUSING. RESEALED CHIP DETECTOR HOUSING AND SERVICED OIL AS REQUIRED PER 49-Apr 23, 2013 · N835AW · Airbus A319132SDR DXTA201304170557Oil System · overservicedSWEET ODOR OF SMOKE IN CABIN ON GROUND, WITH APU SUPPLYING BLEED AIR FOR ACM. APU FAILED A PORTION OF INITIAL PREFLIGHT CHECK, WITH "READY TO LOAD LIGHT" FAILING TO ILLUMINATE UNTIL APU MASTER HAD BEEN CYCLED PRIOR TO SUCCESSFUL FULL TEST. FOUND APU OIL LEVApr 16, 2013 · N668QS · Cessna 560XLSDR YENA20130412074Packing · damagedFLT 979 BOS-FLL, CREW REPORTED "DIRTY SOCK " SMELL STRONG IN COCKPIT DURING DESCENT. FOUND EXTERNAL OIL LEAKING FROM APU OIL COOLER INLET LINE. REMOVED AND REPLACED PACKINGS AND SECURED LINES IAW AMM 49-91-44. OPS AND LEAK CHECK OK. PERFORMED ECS DECONTAM.Apr 12, 2013 · N746JB · Airbus A320232SDR UALA2013041202499Line · leakingODOR IN ACFT AFTER APU AUTO SHUTDOWN. ACCOMPLISHED TSM & FOUND OIL LINE FROM OIL COOLER LEAKING. REPLACED LINE.Apr 10, 2013 · N433UA · Airbus A320232SDR DXTA2013041105353Oil System · leakingAFTER 2ND POST FLIGHT OF THE DAY DISCOVERED OIL LEAKING FROM APU EXHAUST FWD ALONG BOTTOM OF FUSELAGE. APU WAS STARTED ON GROUND AND COCKPIT FILLED WITH SMOKE FROM WEMACS. CABIN ALSO FILLED WITH SMOKE, DID NOT NOTICE FROM WHERE. APU WAS SHUTDOWN. ENGINES WERApr 10, 2013 · N368QS · Cessna 680CESDR ASAA2013031794191Filter · cloggedAPU OIL FILTER DELTA P INDICATOR EXTENDED. APU OIL FILTER INDICATOR SERVICE COMPLETED IAW AMM 49-91-13. LEAK CHECKED GOOD, PIN RESET.Mar 17, 2013 · N532AS · Boeing 737890SDR ASAA2013031694193Indication Sys · malfunctionedAPU MAINT LIGHT ILLUMINATED AFTER APU START. FOUND FAULT CODE 49-91227 (LOW OIL QTY) LOGGED FOUR TIMES SINCE MARCH 10TH IN MX HISTORY LOG. PERFORMED FIM TASK 49-90, TASK 804 INITIAL EVALUATION. INTERMITTENT FAULT SINCE THIS FAULT CODE NOT SHOWING ON THE CURMar 16, 2013 · N409AS · Boeing 737990ERSDR UALA2013031501569Sensor · faultyPRIOR TO DEPARTURE, APU AUTO SHUTDOWN TWICE. REPLACED APU OIL TEMP SENSOR PER MM, OPS CHECKED OK, APU MESSAGE CLEARED, MAT MESSAGE NOT ACTIVE. APU OIL FULL. ACFT RETURN TO BLOCKS SECOND TIME. SAME PROBLEM HIGH OIL TEMP DETECTED BY APUC. FOUND 1 X 1.5 HOLMar 14, 2013 · N772UA · Boeing 777222SDR ASAA2013031494178Filter · cloggedDURING OTHER MAINT FOUND APU OIL FILTER INDICATOR EXTENDED. ACCOMP OIL FILTER INDICATOR SERVICING. INSP MAGNETIC DRAIN PLUG & REPLACED LUBE FILTER ELEMENT. NO CONTAMINATION FOUND. REF AMM 49-91-13. NO LEAKS NOTED, OPS CK GOOD. DELTA-P DID NOT EXTEND.Mar 14, 2013 · N560AS · Boeing 737890SDR ASAA2013031394162Filter · cloggedAPU OIL FILTER INDICATOR EXTENDED. R & R OIL FILTER ELEMENT, SERVICED APU, REF AMM 49-91-13-600-801. LEAK CK GOOD.Mar 13, 2013 · N584AS · Boeing 737890SDR ASAA2013030894113Indicator · activatedAPU OIL FILTER DELTA P INDICATOR HAS EXTENDED. R & R APU OIL FILTER REF MM-49-91-13. RESET DELTA P INDICATOR AND LEAK CHECK GOOD. PERFORMED TASK MM 49-91-13-600-801. INSPECTED MAGNETIC DRAIN PLUG, NO METAL FOUND.Mar 8, 2013 · N586AS · Boeing 737890SDR UALA2013030701383Oil System · overservicedON APU SHUTDOWN, BLACK SMOKE BELLOWED OUT OF TAIL PIPE. INSPECTED APU TAIL PIPE. NO DISCREPANCIES NOTED. FOUND APU OIL OVERSERVICED. NO FAULTS PRESENT ON ECS. RAN APU PER JRH 2-5-15, AND FOUND APU OPERATION NORMAL.Mar 6, 2013 · N552UA · Boeing 757222SDR USAA2013030700014Oil System · overservicedFLIGHT ATTENDANTS REPORTED AN OILY SMELL IN EXTREME AFT CABIN AND AFT GALLEY DURING TAXI-OUT AND TAXI-IN ONLY WITH APU BLEED ON. MAINTENANCE ACCOMPLISHED J/C 26L00021001 AND FOUND THE APU OVERSERVICED. SERVICED APU AND PLACED ON MEL 36-12-01A, APU BLEED AIR Mar 6, 2013 · N809AW · Airbus A319132SDR SIMA20130228008Oil System · overservicedFLIGHT 3418, CREW REPORTED AN OIL ODOR COMING FROM PACKS DURING ALL PHASES OF FLIGHT. ODOR WAS WORSE WITH ENGINES AT IDLE. COMPLIED WITH ETN-EM-72-034 WITH NO ODOR NOTED. FOUND APU OVERSERVICED.Feb 28, 2013 · N724AE · Emb EMB135LRSDR USAA2013022800014O-Ring · damagedFLIGHT CREW AND CABIN CREW DETECTED AN ACRID ODOR ON CLIMBOUT, CRUISE AND DESCENT. MAINTENANCE FOUND APU SCAVENGE FILTER HOUSING LEAKING. REMOVED AND REPLACED O-RING PER AMM 49-91-52. LEAK CHECK OK. ACCOMPLISHED JOB CARDS 26L00021001 - T/S CABIN AIR QUALITFeb 27, 2013 · N733UW · Airbus A319112SDR ASAA2013022093960Sensor · brokenSTART NR 1 FAULT FL380. CSS START NR 2 RESULT FAULT FL 350. UNABLE TO CONDUCT START NR 3, DUE 5 MIN FAULT TIMER AND BELOW FL 290. FOUND BROKEN SHIELD TERMINAL AT BACKSHELL OF OIL TEMP SENSOR CONNECTOR P-15. REPLACED SHIELD TERMINAL ON OIL TEMP SENSOR CONNECFeb 20, 2013 · N506AS · Boeing 737890SDR ASAA2013021493919Oil Cooler · leakingAPU SHUTDOWN. PERFORMED FIM 49-90, TASK 801, HIGH OIL TEMP SHUTDOWN, FOUND OIL LEAKAGE AT OIL COOLER SUPPLY LINE. REPLACED APU OIL COOLER IAW AMM 49-91-41. NO LEAKS NOTED. PERFORMED APU BITE PROCEDURE IAW AMM 49-60, TASK 801, NO CURRENT FAULTS FOUND AND CDFeb 14, 2013 · N506AS · Boeing 737890SDR REXA2013020200216Oil System · lowON FLIGHT 4285 (MSP TO YYZ) CREW REPORTED DURING LANDING THEY STARTED THE APU AND COULD SMELL FUEL FOR 5 SECONDS. DEFERRED PER MEL 49-10-11. FOUND APU OIL LOW, SERVICE OIL IAW AMM 12-13-49. BEGAN APU AND NO SMELL OF FUEL WAS DETECTED. CLEARED DEFERRAL 0022Feb 2, 2013 · N8943A · Cndair CL6002B19SDR USAA2013020400021O-Ring · leakingF/A'S COMPLAINING OF AN ODOR AND SMELL IN FORWARD AND AFT CABIN, BURNING THEIR EYES- COUGHING- THROAT IRRATION- ALSO PILOTS SMELLED AND NOTICED SOME KIND OF IRRATION IN THROATS IN CRUISE AND ENGINE S/D. MAINTENANCE FOUND THE APU TO BE SOURCE OF CABIN ODOR PERJan 31, 2013 · N650AW · Airbus A320232SDR USAA2013012800006Packing · leakingCREW REPORTED A CABIN ODOR. MAINTENANCE FOUND EVIDENCE OF OIL LEAK ON APU TURBINE NR 4 CAVITY VENT TUBES. REMOVED AND REPLACED PACKINGS ON APU TURBINE NR 4 CAVITY VENT TUBES. COMPLIED WITH DECONTAMINATION J/C'S 26L00021004 AND 26L00021002I, APU COMPRESSOR WJan 27, 2013 · N835AW · Airbus A319132SDR FDEA201301170120Apu · leakingON TAXI OUT, MAIN DECK CARGO SMOKE WARNING RETURNED. TROUBLESHOT SYS REF TSM 26-19-00. UPON ARRIVAL AT ACFT. MAIN CARGO DECK AND FLIGHT DECK HAD A VERY STRONG ODOR OF DEICE FLUID. INSPECTED PACKS AND FOUND DEICE FLUID IN LT PACK. OPENED AND CLEANED COALESJan 17, 2013 · N652FE · Airbus A300F4605RSDR ASAA2013011793701Module · leakingDURING ETOPS PDC FOUND OIL STREAMING OUT OF APU COWLING DRAIN MAST. REPLACED APU LUBE MODULE REF AMM 49-91-11-400-802, OPS CHECKED GOOD.Jan 17, 2013 · N577AS · Boeing 737890SDR USAA2013011800003Packing · leakingCABIN ODOR REPORTED BY FLIGHT ATTENDANT THROUGHOUT CABIN (DIRTY OILY) WHEN PACKS ARE ON APU. MAINTENANCE TROUBLESHOT AS PER J/C 26L00021001. FOUND SOURCE OF SMELL TO BE THE APU. REMOVED AND REPLACED APU TURBINE CAVITY VENT TUBES PACKING PER MM 49-91-53. OPJan 16, 2013 · N832AW · Airbus A319132SDR ASAA2013011193665Sensor · malfunctionedON APU START BLUE MX LIGHT ILLUMINATED. SHUTDOWN APU, CHECKED OIL LEVEL - OIL LEVEL IS FULL, MAINT LIGHT WENT OUT, RESTARTED APU - NO LIGHT, BITE TEST SHOWS NO FAULT AND FULL OIL LEVEL NOW. ORIGINAL BITE CHECK SHOWED LOW OIL LEVEL. OK FOR SERVICE AT THIS TIJan 11, 2013 · N403AS · Boeing 737990SDR USAA2013011000016Adapter · defectiveGROUND PERSONNEL REPORTED SMOKE AND FLAMES COMING FROM APU AFTER SHUTDOWN USING MASTER SWITCH. FLAMES WOULD NOT SUBSIDE - APU FIRE BUTTON WAS PUSHED - FLAMES EXTINGUISHED. MAINTENANCE REPLACED AIR/OIL SEPARATOR ADAPTER IAW AIRBUS MAINTENANCE MANUAL 49-26-54.Jan 7, 2013 · N172US · Airbus A321211SDR ASAA2013010693625Oil System · overservicedAPU AUTO SHUTDOWN, NO FAULT LIGHT ILLUMINATED. ATTEMPTED SECOND START APU FAULT LIGHT ILLUMINATED. PERFORMED BITE CHECK OF APU TEST 49-60 / 801, NO FAULTS. INSPECTED APU FOUND OIL QUANTITY OVERSERVICED. INSPECTED MAGNETIC CHIP PLUG REF AMM47-91-81, NO FAULJan 6, 2013 · N506AS · Boeing 737890SDR UALA2013010300034B-Nut · looseAPU AUTO SHUTDOWN. FOUND LOOSE B-NUT. SECURED FITTING. SERVICE OIL TO FULL.Jan 2, 2013 · N543UA · Boeing 757222
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