JASC 4990

Service difficulty reports · 2,654

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 CALA2021082301406Pressure Switch · auto shutdownAPU LOW OIL PRESSURE LIGHT LIGHT ON, APU HAD A PROTECTIVE SHUTDO WN APU AUTO SHUT DOWN TWICE IN CRUISE. FOUND APU LUBE FILTER INDICATOR EXTENDED. CHECKED MAGNETIC PLUGS, NO DEBRIS FOUND. REPLACED LUBE OIL FILTER AND INSPECTED THE REMOVED FILTER FOR DEBRIS, NAug 23, 2021 · N76517 · Boeing 737824SDR ASAA2021082135764Filter · dirtyAPU OIL FILTER INDICATOR REQ'S SERVICING. GROUNDED - YES. REMOVED AND REPLACED APU LUBE FILTER ELEMENT REF. B737-900 AMM 49-91-12 OPS CHECK NORMAL NO LEAKS DETECTED AT THIS TIME.Aug 21, 2021 · N462AS · Boeing 737990ERSDR AALA202108233332Oil Cooler · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORT ODOR IN CABIN DURING BOARDING. MAINTENANCE FOUND APU OIL COOLER LEAKING. OPERATED PACKS OFF OF APU NO ODORS NOTED, VISUAL INSPECTION OF APU ACCOMPLISHED WITH NO LEAKS OR DEFECTS NOTED PER TASK CARD 26L00021002. AAug 19, 2021 · N128UW · Airbus A320214SDR AALA202108203332Oil Cooler · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORT ODOR IN CABIN DURING BOARDING. MAINTENANCE FOUND APU OIL COOLER LEAKING. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)Aug 19, 2021 · N128UW · Airbus A320214SDR UIEA2021081601806Warning Message · false activationAPU FAULT LIGHT DURING FIRST START ATTEMPT. APU OIL STATUS INDICATION "ADD"(<P>C/W FIM - 49-11-43958. NO DEFECTS NOTED AT THIS TIME.</P>)Aug 15, 2021 · N663GT · Boeing 767324SDR DALA2021081604709Compressor · leakingSHIP 3351 ON DESCENT AIRCRAFT HAD OILY SMELL THROUGH CABIN AND COCKPIT WITH PACK FLOW IN NORM AND LOW. FIRST CABIN CONTROL BEHIND COCKPIT WAS 124 DEGREES C BELOW 10,000 COULD NOT REDUCE W/CNTRLS. CORRECTIVE ACTION: NO OIL NOTED IN APU BLEED AIR ELBOW. NO TROUBAug 14, 2021 · N851NW · Airbus A330223SDR UIEA2021081301791Oil System · lowUNABLE TO START APU, "APU FAULT". SERVICED APU TO CORRECT LIMITS IAW AMM 12-13-04 AND OPS CK OF APU GOOD AT THIS TIME IAW AMM 49-11-00.Aug 13, 2021 · N641GT · Boeing 76738ESDR ASAA2021081135731Control Valve · failedON TAXI IN , SHORTLY AFTER PUTTING ELECTRICS ON APU BUSS, GOT A APU FIRE WARNING STOPPED AIRCRAFT , SET BRAKES AND PERFORMED APU FIRE QRC AND QRH. TAXIED TO GATE. DID BLOW ONE FIRE BOTTLE INTO APU. GROUNDED - YES. OIL SOAKED / LOW OIL IN TANK. SUSPECT APU INTEAug 11, 2021 · N626AS · Boeing 737790SDR AALA202108200940Oil Cooler · leakingAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL IN AFT CABIN. MAINTENANCE FOUND APU LEAKING OIL**SUPPLEMENTAL REPORT FOR AALA202108120940: REPLACED APU OIL COOLER ASSEMBLY AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-91-44** (CLOSED)Aug 10, 2021 · N189UW · Airbus A321211SDR DALA2021081304676Oil System · leakingSHIP 3351 CREW REPORT OF OILY SMELL IN CABIN DURING FLIGHT. CORRECTIVE ACTION: FOUND APU OIL LEAK INTO THE RAM AIR SCOOP. REPLACED APU. (1907474)Aug 10, 2021 · N851NW · Airbus A330223SDR AALA202108120940Oil System · leakingAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL IN AFT CABIN. MAINTENANCE FOUND APU LEAKING OIL**SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)Aug 10, 2021 · N189UW · Airbus A321211SDR ASAA2021080535651Pressure Switch · faultedDURING APU START LOW OIL PRESSURE LIGHT ILLUMINATED FOLLOWED BY THE FAULT LIGHT. EGT DID NOT RISE. GROUNDED - YES. REMOVED AND REPLACED APU LOW OIL PRESSURE SWITCH IAW B737-800 AMM 49-94-22/401. PERFORMED 3 STARTS WITH NO ISSUES. OIL PRESSURE LIGHT WENT OUT, EAug 5, 2021 · N596AS · Boeing 737890SDR UIEA2021080651711Oil System · lowAPU FAULT AFTER LANDING(<P>PERFORMED ECU BITE IAW FIM TASK 49-11 FT 987. START ABORTED FAULT, FOUND APU OIL LOW, SERVICED APU OIL TO FULL IAW AMM 12-13-04, PERFORMED OPS CHECK OF APU IAW AMM 49-11-00, OPS CHECK GOOD</P>)Aug 4, 2021 · N1487A · Boeing 76731KSDR ASAA2021080435625Filter · cloggedDURING GVI OF APU FOUND RED BUTTON ON THE OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. PERFORMED OIL FILTER INDICATOR SERVICING PER B737-800 AMM 49-91-13-600-801 PER TASK CARD N8349002 SUBTASK 834-003.Aug 4, 2021 · N562AS · Boeing 737890SDR UIEA2021080631683Adapter · leakingAPU OIL LEAK(<P>TRANSFERRED TO MDDR 151204 IAW MEL 49-11-01A, CAT C.</P> / <P>LP 1369335 ITEM 2. REMOVED AND REPLACED CAP AND ADAPTER ASSEMBLY IAW CMM 49-22-11 AS PER ECM 2021P-245. OPS AND LEAKS CHECKS GOOD. THIS CLEARS MDDR 151204.</P>)Aug 2, 2021 · N1321A · Boeing 767306SDR UIEA2021072801646Shutoff Valve · faultedAPU OIL SHOWS 50%(<P>SERVICED APU 1 QUART, SHOWS FULL, PERFORMED INSPECTION AT APU, NO LEAKS NOTED I/A/W AMM 49-05-03 AND 12-13-04. TRANSFERRED TO MDDR # 150932, CAT C, PER DDG 49-11-01A.</P> / <P>LP 1369331 ITEM 7: T/S APU OIL LEAK PER B767 FIM 49-11, FAULT TJul 28, 2021 · N1321A · Boeing 767306SDR UIEA2021072901653Cap · unsecureAPU OIL QTY EICAS MESSAGE DISPLAYED(<P>UPON FURTHER INVESTIGATION FOUND APU OIL CAP NOT SECURED.. SERVICED APU IAW B767AMM 12-13-04</P>)Jul 28, 2021 · N1321A · Boeing 767306SDR AALA202107291936Fitting · leakingAIRCRAFT WAS GROUNDED: ON DECENT WITH ENGINES IDLE AND HP VALVE OPEN, SMOKE ODOR FROM AIR CONDITIONING SYSTEM. MAINTENANCE FOUND FITTING AT TURBINE BEARING SCAVENGE LINE ON BACK OF GEAR BOX LEAKING. REPLACED FITTING FOR TURBINE BEARING SCAVENGE LINE AND ACCOMJul 27, 2021 · N128UW · Airbus A320214SDR AALA202107272952Packing · leakingAIRCRAFT WAS GROUNDED: CREW REPORTED BOTH PACKS HAVE A BURNT OIL SMELL. MAINTENANCE FOUND THE APU OIL LUBE MODULE FILTER LEAKING AND REPLACED THE PACKING IN THE OIL LUBE MODULE FILTER PER AMM 49-91-41. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHEDJul 26, 2021 · N9012 · Airbus A319115SDR DALA2021072804252Oil System · leakingSHIP 3168 - SMKE/FUME, ON GROUND RUNNING APU, CABIN FILLED WITH LIGHT BLUE SMOKE & SMELLED LIKE STICKY SOCK ODOR. MTC FOUND APU COMPARTMENT SOAKED IN OIL. APU PLACED ON MEL AND ECS DECONTAMINATION PROCEDURE COMPLETED. NO FURTHER SMOKE OR SMELL. A/C RTS.(7928Jul 25, 2021 · N368NB · Airbus A319114SDR AALA202107298586Apu · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT AT 7, 000 FEET FLIGHT ATTENDANT REPORTED A STRONG DIRTY SOCK SMELL. MAINTENANCE FOUND OIL LEAKING FROM THE LOAD COMPRESSOR DRAIN. REPLACED APU PER TASK CARD 26L31049005.Jul 24, 2021 · N673AW · Airbus A320232SDR AALA202107278586Drain · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT AT 7, 000 FEET FLIGHT ATTENDANT REPORTED A STRONG DIRTY SOCK SMELL. MAINTENANCE FOUND OIL LEAKING FROM THE LOAD COMPRESSOR DRAIN. (OPEN)Jul 24, 2021 · N673AW · Airbus A320232SDR ASAA2021072235472Filter · cloggedWHILE ACCOMPLISHING TASK CARD N8349002 (APU GENERAL VISUAL INSPECTIONS) FOUND RED BUTTON ON THE APU OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. REMOVED AND REPLACED LUBE FILTER ELEMENT PER B737-800 AMM 49-91-12, LEAK CHK GOOD, OK FOR SERVICE.Jul 22, 2021 · N559AS · Boeing 737890SDR AALA202107237604Apu · leakingAIRCRAFT WAS GROUNDED: ODOR IN COCKPIT DURING DESCENT - SMELLED LIKE UN-BURNED FUEL. FUMES EVEN STRONGER AFTER ENGINE SHUTDOWN AT THE GATE. FLT ATTENDANTS DID NOT SMELL. FOUND OIL LEAK AT APU OIL COOLER DUCT, REPLACED APU AND ACCOMPLISHED A SATISFACTORY LEAKJul 19, 2021 · N813AW · Airbus A319132SDR UIEA2021072001599Oil Cooler · leakingSUSPECTED LEAK FROM APU OIL(<P>REMOVED AND REPLACED APU OIL COOLER IAW AMM 49-27-09. OPS CHECK GOOD.</P>)Jul 19, 2021 · N1619A · Boeing 7673Y0SDR AALA202107160461Cooling Fan · leakingAIRCRAFT WAS GROUNDED: ON DESCENT WE NOTICED A MUSTY ODOR STARTING BETWEEN 10000 AND 15000 ORIGINALLY SMELLED LIKE A WATER SEPARATOR MELTING. WE HAD A LOT MORE CONDENSATION THAN NORMAL F/O SAID HE SMELLED A SLIGHT OIL SMELL DURING THAT TIME. COULD SMELL ON THEJul 14, 2021 · N764US · Airbus A319112SDR UIEA2021071201526Oil Cooler · faultedAPU INOPERATIVE ( AUXILIARY POWER UNIT ) (APU), ER OERATIONS NOT ALLOWED REMOVED & REPLACED APU OIL COOLER PER AMM 49-27-09. NO LEAKS .</P> / <P>REMOVED & REPLACED APU COOLING FAN PER AMM 49-51-03. PERFORMED APU OPS CHK PER AMM 49-11-00. APU OPERATED NORMAJul 13, 2021 · N649GT · Boeing 767375SDR ASAA2021071335379Oil Cooler · leakingFOUND APU OIL COOLER LEAKING. GROUNDED - YES. REPLACED APU OIL COOLER PER B737-800 AMM 49-91-41. LEAK CHECK OK.Jul 13, 2021 · N565AS · Boeing 737890SDR AALA202107142127Cooling Fan · leakingAIRCRAFT WAS GROUNDED: STRONG ODOR COMING FROM VENTS WITH APU BLEED SELECTED. REPLACED APU COOLING FAN (AALA202107142127) PER AMM 49-52-51 AND APU OIL COOLER (AALA202107141129) PER AMM 49-91-44. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.Jul 12, 2021 · N738US · Airbus A319112SDR AALA202107141129Oil Cooler · leakingAIRCRAFT WAS GROUNDED: STRONG ODOR COMING FROM VENTS WITH APU BLEED SELECTED. REPLACED APU COOLING FAN (AALA202107142127) PER AMM 49-52-51 AND APU OIL COOLER (AALA202107141129) PER AMM 49-91-44. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.Jul 12, 2021 · N738US · Airbus A319112SDR UIEA2021070601479Transmitter · malfunctionedAPU OIL QTY INOPERATIVE. C/W W/O 85469, REMOVED AND REPLACED APU OIL QTY TRANSMITTER IAW B767-300 AMM 49-94-04. OPS CHECK GOOD. NO LEAKS NOTED.Jul 6, 2021 · N663GT · Boeing 767324SDR P5CA2021070200252Oil System · lowAPU FAULT UPON START ON TAXI IN. APU WOULD NOT START.(<P>OIL QTY LOW. SERVICED APU OIL TO FULL IAW AMM 12-13-04-613-06. APU OPS NORMAL.</P>)Jul 2, 2021 · N647GT · Boeing 767306SDR UIEA2021070101451Transmitter · fluctuatesDURING APU RUNNING, FOUND OIL IND FLUCTUATE(<P>R&R APU OIL TRANSMITTER REF AMM 49-94-04, OPS CK GOOD, LK CK GOOD, NO OTHER DEFECT NOTED</P>)Jun 28, 2021 · N662GT · Boeing 76731ASDR UIEA2021062801436Oil Cooler · malfunctionedLOW APU DUCT PRESSURE DURING START DUE TO HIGH EGT.(<P>APU PNEUM. PLACED ON MEL 49-11-01-01 CAT C DEFRRAL # 149299. RS 1437.</P> / <P>27JUN21 LP 1402166 ITEM 3: REMOVED AND REPLACED APU AIR/OIL COOLER IAW B767 AMM 49-27-00. PERFORMED LEAK AND OPS CHECKS/LEAK CJun 27, 2021 · N641GT · Boeing 76738ESDR UIEA2021061601362Oil System · lowAPU FAULT WHEN TRYING TO START APU AFTER LANDING(<P>PERFORMED APU BITE PROCEDURE IAW FIM TASK 49-11 FT 987, LOW OIL PRESSURE FAULT, FOUND APU OIL LOW, SERVICED TO FULL IAW AMM 12-13-04, PERFORMED OPS CHECK OF APU 3X TIMES IAW AMM 49-11-00, OPS CHECK GOOD, APU Jun 15, 2021 · N1093A · Boeing 76736NSDR DALA2021061403223O-Ring · leakingNOTICED A OILY SOCK SMELL AFTER TURNING ON APU AND BLEED AIR. REFERENCE ORIG LOG 1835280 FOR REPAIR. REMOVED APU FUEL CONTROL. REMOVED AND REPLACED APU OIL COOLING FAN ASSY O RING ON FAN MOUNTING FLANGE AND 2 NEW O RINGS ON TRANSFER TUBE. REMOVED AND REPLACED Jun 11, 2021 · N352DN · Airbus A321211SDR DALA2021061403208Oil Cooler · contaminatedSHIP 3130 - MUSKY DIRTY SOCK SMELL COMING FROM AIR CONDITIONING SYSTEM. CORRECTIVE ACTION: CW NO GO ODI PREVENTION WC. FOUND APU OIL OVER SERVICED APU OIL FAN AND COOLER CONTAMINATED WITH OIL. PERFORMED DUCT BURNOUT. (7376268)Jun 11, 2021 · N330NB · Airbus A319114SDR YENA2021061400366Oil System · overservicedFLT 543, EWR-PBI. #4 F/A SMELLED THE DIRTY SOCKS SMELL BEFORE TO OUT OF EWR F/A SAID THE SMELL WENT AWAY BUT SEVERAL PAXS COMPLAINED OF THE SMELL THE SMELL CAME BACK ON DESCENT THE F/A STATED; COMPLIED WITH INFO NOTICIE 2017-T015F SECTION B. APU BLEED PLACED OJun 9, 2021 · N507JT · Airbus A320232SDR CVGA20210208002Oil System · overservicedSMOKE IN THE COCKPIT AND CABIN IMMEDIATELY AFTER TAKEOFF.Jun 5, 2021 · N413SK · Cessna 560XLSDR AALA202106079008O-Ring · missingAIRCRAFT WAS GROUNDED: WET SOCK SMELL IN CABIN. MAINTENANCE FOUND A LEAK BETWEEN THE FUEL CONTROL UNIT AND OIL LUBE UNIT DUE TO A MISSING O-RING, INSTALLED O-RING AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-32-11.Jun 5, 2021 · N186US · Airbus A321211SDR DALA2021060303031Apu · contaminatedSHIP 3314 PACKS NEED TO BE BURNED IN FOUL ODOR ON DECENT. CORRECTIVE ACTION: INSPECTED APU COMPARTMENT. FOUND OIL INSIDE APU DOORS. FOUND APU CONTAMINATED. REMOAVED AND REPLACED OZONE AND RECERC FILTERS. (7452554)Jun 2, 2021 · N814NW · Airbus A330323SDR DALA2021052702944Line · leakingINSPECTED APU. NOTICED HEAVY OIL SMELL ON RIGHT SIDE OF APU COMPARTMENT (WIP299411) FOUND OIL LEAK AT THE OIL COOLER RETURN AND SUPPLY LINE. REMOVED AND REPLACED BOTH LINES PER A321 AMM 49 -91-44 P/N 3881763-2 & 3881764-2. ACCOMPLISHED AMDS CARDS 0550- 200, 49May 24, 2021 · N314DN · Airbus A321211SDR AALA202105249013Oil Cooler · leakingAIRCRAFT WAS GROUNDED: OIL ODOR BEGAN IN DESCENT WHEN POWER WENT TO IDLE. SEEMS TO BECONSISTENT BETWEEN BACK AND FRONT OF CABIN. REPLACED APU OIL COOLER AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-91-44.May 23, 2021 · N118NN · Airbus A321231SDR ASAA2021052334876Oil Cooler · faultedAPU OIL MONITORING DATA SHOWS OIL CONSUMPTION TO BE TRENDING HIGHER THAN EXPECTED. GROUNDED - YES. ACCOMPLISHED APU OIL CONSUMPTION FAULT ISOLATION PER B737-800 FIM 49-95 TASK 801. FOUND SIGNS OF OIL COOLER LEAKING. REMOVED OIL COOLER AND FOUND INBOARD AIR FINMay 23, 2021 · N592AS · Boeing 737890SDR UIEA2021052301166Solenoid Valve · faultedAPU RELIABILITY COLD START UNSUCCESSFUL AFTER 3 ATTEMPTS ST -52C FL370. APU INOP.(<P>TRANSFERRED TO MDDR # 147412 IAW MEL 49-11-01A, CAT C, DUE DATE 02JUN21. EH 1526Z.</P><P>ONT MX, 23MAY, LP 1476796, ITEM M4: REMOVED AND REPLACED DE-OIL SOLENOID VALVE IAW AMMMay 23, 2021 · N1373A · Boeing 76731KSDR UIEA2021052401168Status Message · false indicationAPU OIL QTY STATUS MESSAGE.(<P>PERFORMED B767-200/300 FIM TASK 49-11 FAULT TREE A02, SERVICED APU WITH 2 QTS. SYSTEM SATISFACTORY. APU ECU BITE OK, SELF TEST OK.</P>)May 23, 2021 · N663GT · Boeing 767324SDR AALA202105249012Oil Cooler · leakingAIRCRAFT WAS GROUNDED: APU BLEED AIR HAS OILY SMELL IN COCKPIT. ACCOMPLISHED SMOKE FUMES CARD 26L00021001 AND APU SMOKE ODOR FUMES TROUBLESHOOTING TASK CARD 26L00021002. FOUND APU OIL COOLER LEAKING. REMOVED AND REPLACED APU OIL COOLER IAW AMM 49-52-51.May 21, 2021 · N144AN · Airbus A321231SDR AALA202105209004Oil System · overservicedAIRCRAFT IN BASE MAINTENANCE: DESCENDING THROUGH 10,000 FEET UNTIL LANDING, PILOTS EXPERIENCED A CABIN ODOR MUSTY. CAPTAIN DONNED OXYGEN MASK. DETERMINED THAT APU OIL WAS OVERSERVICED. ACCOMPLISHED J/C 26L00021001, 26L00021002, 26L00021004--SMOKE/ODOR/FUMES INMay 19, 2021 · N108UW · Airbus A320214SDR DALA2021051802765Oil System · overservicedBURNING SMELL AND FUMES IN THE CABIN. T/S IAW ODI WORK CARD 0550-2001. COMPLETED UP THROUGH STEP 5. INSP. APU FOUND OIL SERVICED TO FULL WITH NO EVIDENCE OF LEAKS. INSP. ALL 3 HYD BAYS. SERVICING GOOD PER SERV. CK. NO EVIDENCE OF LEAKS ALL 6 OVER FLOW BOTTLES May 17, 2021 · N134DU · Airbus BD5001A10SDR YENA2021060800363Oil System · leakingFLT 221, BOS-PBI. CREW REPORTED A DIRTY SOCK SMELL ON DESCENT STARTING AROUND 4000FT IN THE CABIN AND EVENTUALLY CAME INTO THE COCKPIT AROUND 3000FT. PACK 1 WAS ALREADY ON MEL. REPEAT ODOR EVENT. ACFT TAKEN OOS IN PBI FOR TS AND ECS DECONTAMINATION. DUE TO OILMay 15, 2021 · N957JB · Airbus A321231
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