JASC 4920

Service difficulty reports · 2,431

Reports filed under 4920 · APU Core Engine, 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 = '4920'
  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 C2XA11CL068Apu · failedTHE CREW REPORTED AN APU FAIL MESSAGE ALONG WITH A ELECTRICAL SMELL. MAINTENANCE INSPECTED AND REPLACED THE APU. OPERATIONAL CHECKS WERE GOOD.Mar 10, 2011 · N11544 · Emb EMB145LRSDR XV6A2011030600005Apu · flamed outDURING FLIGHT AT FL390 APU FLAMED OUT WITH EICAS MSG "APU FAULT". APU IN USE AS SECOND GENERATOR. DESCENDED TO FL350 FOR RESTART. APU STARTED NORMALLY THEN FLAMED OUT. RAN PROCEDURES IAW QRH.Mar 6, 2011 · N766VA · Boeing 7672Q8SDR XV6A2011F00059Engine · flamed outDURING FLIGHT AT FL390 APU FLAMED OUT WITH EICAS MSG "APU FAULT". APU IN USE AS SECOND GENERATOR. DESCENDED TO FL350 FOR RESTART. APU STARTED NORMALLY THEN FLAMED OUT. RAN PROCEDURES IAW QRH.Mar 6, 2011 · N766VA · Boeing 7672Q8SDR ASAA1159176Apu · shutdownDURING APU INITIAL START. LIGHT ILLUMINATED THEN APU SHUTDOWN. PERFORMED APU BITE PROCEDURE FAULT CODE 49 31171 LOGGED. PERFORMED MAINTENANCE TASK 49 31 00 810 808 PARAGRAPH F ( 1 ) APU OPS. CHECK GOOD. NO FAULTS NOTED.Mar 4, 2011 · N593AS · Boeing 737890SDR ASAA1159090Apu · malfunctionedSTRONG UNPLEASANT ODOR FROM AIR CONDITIONING SOON AS PACKS TURNED ON. USING BLEED AIR FROM APU A/C AIR HAS LIGHT ODOR. FOUND OIL ODOR IN APU BLEED AIR DUCT DOWNSTREAM OF BLEED AIR VALVE. REPLACED APU REF 49 11 00 400 803 STEP L PG 10. COMPLETED INSTALL OF Feb 26, 2011 · N563AS · Boeing 737890SDR REXA201100143Apu · shutdownAPU FAULT/AUTO SHUT DOWN ABORTED TAKEOFF ECU SHOWED AUTO SHUTDOWN "DOOR POS" TRANSFERRED TO DMI LOG IAW MEL 49-10-11. PLACARD INSTALLED.Feb 24, 2011 · N8577D · Cndair CL6002B19SDR ZZDA2011186Apu · shutdownAPU SHUT DOWN ON ITS OWN AFTER LOUD BANG. APU WAS REMOVED AND SERVICEABLE APU ASSEMBLY INSTALLED ON LOG PAGE 1733519.Feb 21, 2011 · N965AT · Boeing 717200SDR CA110222009Turbine Nozzle · crackedDISASSEMBLY OF THE APU FOR A CRACKED SCROLL ASSY REVEALED A CRACKED TURBINE NOZZLE ASSY. THE TURBINE NOZZLE HAD 389 HRS SINCE NEW.Feb 19, 2011 · Cndair CL604SDR CA110228010Blade · distressed(CAN) APU SUFFERED SEPARATION AT "F" FLANGE FOLLOWING AN HP BLADE DISTRESS. DEBRIS WERE FOUND INSIDE THE APU COMPARTMENT.Feb 17, 2011SDR DALA1111840983Apu · malfunctionedAFTER TAKEOFF AFT LAVATORY SMOKE ALARM SOUNDED. NO VISIBLE SMOKE OR HAZE WAS REPORTED BUT THERE WAS AN ODOR. FLIGHT CREW RETURNED AIRCRAFT TO DEPARTURE AIRPORT. MAINTENANCE IN PROGRESS, APU CHANGE AND PNEUMATIC DUCT BURNOUT.Feb 17, 2011 · N983DL · Doug MD88SDR ASAA1159033Apu · malfunctionedFAINT DIRTY SOCK ODOR DETECTED IN FLIGHT DECK ONLY ON DESCENT AS WE PASSED THROUGH APPROXIMATLY 8000 MSL.ODOR DISSIPATED BY 5000 MSL AND FLIGHT ATTENDANTS REPORTED NO ODORS IN CABIN. REMOVED APU COMBUSTOR DRAIN & FOUND CONTAMINATED WITH OIL. REPLACED THE APUFeb 13, 2011 · N594AS · Boeing 737890SDR QXEA2011021500158Thermocouple · failedAPU FAILED TO START ON THE FIRST TRY. APU FAIL LIGHT ILLUMINATED. RAMP REPORTS LOTS OF SMOKE FROM THE APU EXHAUST AFTER FAILURE TO START. PLACED APU ON MEL 49-00-1. CLEARED BY: LOOKING AT CDS AND FOUND FAULT CODE 129-1 EGT T/C 2 OPEN. C/W FIM Q400 49-70-07Feb 11, 2011 · N431QX · Bombdr DHC8402SDR UALA2011021100747Apu · leakingOIL ODOR IN CABIN. DUE TO OIL ODOR IN CABIN BOROSCOPE APU LOAD COMPRESSOR AND LOOK FOR SIGNS OF OIL LEAKAGE. ACCOMPLISHED BOROSCOPE INSPECTION OF APU LOAD COMPRESSOR. EVIDENCE OF OIL LEAKAGE AND COKING. REPLACED NR 2 ENGINE, APU, LT ACM AND LT HEAT EXCHANGERFeb 9, 2011 · N796UA · Boeing 777222SDR ASAA1158998Apu · malfunctionedON CLIMB F/A IN AFT CABIN REPORTED DIRTY SOX SMELL ON CLIMB THRU 10,000 DESCENT INTO SEA FLT ATTENDANTS AGAIN REPORTED DIRTY SOX SMELL ON DESCENT BELOW 10,000. FOUND APU COMPRESSOR DRAIN CONTAMINATED WITH OIL. REMOVED AND REPLACED APU REF TASK CARD 78349010 Feb 8, 2011 · N565AS · Boeing 737890SDR DXTA2011020804456Apu · smokeAPPEARANCE OF SMOKE/MIST IN CABIN AND COCKPIT WHEN APU BLEED AIR SWITCH TURNED ON. BOTH MAIN ENGINES WERE NOT RUNNING. HAD USED APU BLEED AIR TWICE EARLIER, NO ISSUES. APU OIL HAD NOT BEEN SERVICED TODAY. NO ABNORMAL APU INDICATIONS OBSERVED DURING AND AFTFeb 7, 2011 · N625QS · Cessna 560XLSDR UALA2011020400615Engine · shutdownAPU AUTO SHUTDOWN PRIOR TO DEPARTURE. ACFT HAS HISTORY. APU STATUS MESSAGE DURING ENG START. APU FAULTING, HIGH OIL TEMP, CURRENTLY SHOWING NO FAULTS. TROUBLESHOOTING IAW FIM. SUSPECT OBSTRUCTION IN INLET DUCT. MESSAGE HAS BEEN CLEARED. BUT APU PAGE INFO AFeb 4, 2011 · N224UA · Boeing 777222SDR UALA2011020400619Sensor · faultedAPU SHUTDOWN ON ENGINE START. APU INOP PREV HIT INDICATED SURGE. CLEANED CONNECTORS TO SCV & FLOW SENSE MODULE. REVERSE FLOW DISPLAYED ON ECU, REPLACED INLET TEMP SENSOR IAW MM AND PT TRANSDUCER. OPS TESTED NORMAL.Feb 4, 2011 · N641UA · Boeing 767322SDR UALA2011020300581Apu · malfunctionedAPU STARTED THEN SHUTDOWN FOR UNKNOWN REASON WILL NOT RESTART. ACCOMPLISHED APU BITE AND FOUND INLET DOOR FAULT. CYCLED APU DOOR CIRCUIT BREAKER C05 AND CONT CIRCUIT BREAKER C05 E6 PANEL. APU START AND OPS NORMAL.Feb 2, 2011 · N551UA · Boeing 757222SDR UALA2011020200563Engine · shutdownAPU STOPPED RUNNING. APU AUTOSHUTDOWN, COULD NOT START. ACP BITE TEST. PASSED, OPS CK APU SEVERAL TIMES, WITH AIR DEMAND, NO DIFFERENCE, OPS CHECKED GOOD.Feb 1, 2011 · N672UA · Boeing 767322SDR MYWA110015Ignition Sys · malfunctionedETOPS SIGNIFICANT SYSTEM: APU FAULT LIGHT ILLUMINATED MAINTENANCE MSG 49-41011 NO FLAME SHUTDOWN. REMOVED AND REPLACED APU IGNITION UNIT IAW MM 49-41-31. OPS CHECKED NORMAL.Jan 29, 2011 · N734MA · Boeing 7378Q8SDR UALA2011013100508Engine · inoperativeAPU DOES NOT START. REPLACED APU.Jan 27, 2011 · N653UA · Boeing 767322SDR UALA2011012600425Apu · oil consumptionAPU OIL CONSUMPTION ABOVE LIMIT. REPLACED APU ASSY IAW MM, ALL CHECKED OK.Jan 25, 2011 · N552UA · Boeing 757222SDR RAIA201101210002Apu · failedDURING POST FLIGHT INSPECTION THE FLIGHT CREW REPORTED THE APU FAILED WITH THE APU BLEED VALVE OPEN INDICATION AND BURNING SMELL. MAINTENANCE INSPECTED AND REMOVED AND REPLACED THE APU. SYSTEM OPS CHECKED GOOD.Jan 21, 2011 · N836HK · Emb EMB145LRSDR RAIA201101210001Apu · failedDURING POST FLIGHT INSPECTION THE FLIGHT CREW REPORTED THE APU FAILED WITH THE APU BLEED VALVE OPEN INDICATION AND BURNING SMELL. MAINTENANCE INSPECTED AND REMOVED AND REPLACED THE APU. SYSTEM OPS CHECKED GOOD.Jan 21, 2011 · N836HK · Emb EMB145LRSDR UALA2011012000336Cooling Fan · faultyAPU AUTO SHUTDOWN AT GATE. FOUND APU COOLING FAN-OIL COOLING AIR DISCHARGE, TO BE REVERSE FLOW. THIS SHOULD BE AN EXHAUST, INSTEAD IS ACTING AS AN INTAKE. SUSPECT FAN IS RUNNING IN REVERSE. REMOVED FAN. FOUND APU GEARBOX DRIVE GEAR WITHOUT TEETH. REMOVED AJan 20, 2011 · N655UA · Boeing 767322SDR ASAA1158855Apu · shutdownAT EXIT POINT TURNED OFF APU PER ETOPS PROCEDURES AND GOT APU FAULT LIGHTS. DID QRH PROCEDURES. FAULT LIGHT WENT OUT AT 5 MINS. COMPLETED FIM TASK 49-60-00 APU FAULT CODE 49-11019 DC POWER LOSS SHUTDOWN POWER WENT UP & LOGGED FOR LAST APU SHUTDOWN COMPLIED Jan 19, 2011 · N558AS · Boeing 737890SDR VNAA2011012400006Apu · malfunctionedCREW REPORTED SMOKE IN THE COCKPIT AND CABIN AFTER TURNING ON THE APU AND SWITCHING BLEEDS ON DESCENT INTO DCA. CREW LANDED IN DCA WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE APU ENCLOSURE AND THE AIR CONDITIONING COOLING DUCTS. NO DEFECTS WERE NOTEJan 18, 2011 · N257PS · Cndair CL6002B19SDR UALA2011011700281Apu · shutdownAPU SHUTDOWN WITH FAULT LIGHT, FLIGHT DIVERTED. REPLACED APU, OP'S CHECKED OK, NO LEAKS NOTED.Jan 15, 2011 · N781UA · Boeing 777222SDR FDEA201101150181Apu · smokeAPU SMOKE (BOTTLE DISCHARGED, IAW SMF THERE IS OIL LEAKING FROM APU AND APU OIL QTY IS ZERO. IAW FLIGHT CREW DISCHARGED BOTTLE, NO FIRE WARNING INDICATION WAS PRESENT. NOTIFIED BY MX POSSIBLE APU FIRE. DISCHARGED ON BOTTLE. REMOVED AND REPLACED OUTBD. FIREJan 15, 2011 · N574FE · Doug MD11FSDR ASAA1158787Apu · malfunctionedON DESCENT AT APPROX 15,000 MSL THERE WAS A STRONG SMELL OF DIRTY SOCKS IN BOTH THE COCKPIT AND PASSENGER CABIN. ODOR CONTINUED THROUGH 10,000 MSL TO LANDING. DURING INITIAL EVALUATION STARTED APU AND OPERATED BOTH LEFT AND RIGHT A/C PACKS. DETERMINED THEREJan 14, 2011 · N597AS · Boeing 737890SDR AALA20110113DFW02Apu · malfunctionedDFW - CREW REPORTED AUXILIARY POWER UNIT FAILED ON TAKEOFF WITH LEFT GENERATOR ON PLACARD. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. SHUTDOWN AND RESTARTED APU, RAN APU FOR 20 MINUTES NO FAULTS NOTED. REJan 13, 2011 · N487AA · Doug DC982SDR UALA2011011000157Switch · faultyAPU AUTO SHUT DOWN RESTARTED AND AUTO SHUT DOWN SECOND TIME. APU ECU FAULTED GEN FILTER. ACCOMPLISHED FIM REF MM SHEET 1. BLOCK 1 CHECKED GOOD. BLOCK 2 HAD HIGH RESISTANCE 1.6 OHM'S. REPLACED APU GENERATOR DELTA P SWITCH PER MM. APU OPS CKS GOOD. NO ECUJan 9, 2011 · N546UA · Boeing 757222SDR UALA2011011000131Engine · fireFIRE COMING OUT OF APU EXHAUST REPORTED BY RAMP. SHUT DOWN APU, SMALL FIRE STILL BURNING AT EXHAUST CONE, APPEARED WET WITH OIL. DISCHARGED DRY CHEMICAL EXTINGUISHER DOWN TAILPIPE. MAT REPORTS HIGH EGT WITH APU RUNNING. LOOKED IN TAIL PIPE. T WHEEL TORN UPJan 8, 2011 · N784UA · Boeing 777222SDR ASAA1158739Apu · malfunctionedAIR CONDITIONING EMANATING MUSTY OLD SOCK SMELL DURING GROUND OPERATIONS AT DEPARTURE AND ARRIVAL. SEEMED TO DISSIPATE AT DEPARTURE AND REOCCUR ON GROUND AT DESTINATION. IT WAS NOTICED DURING THE DESCENT AROUND 10 000' MSL AND ON THE GROUND. REMOVED APU LOAJan 8, 2011 · N577AS · Boeing 737890SDR C2XA11CL003Apu · failedCREW REPORTED SMOKE AND BURNING ODOR IN CABIN & COCKPIT WITH APU FAIL WHILE BOARDING. EMERGENCY EVACUATION AT THE GATE. MAINTENANCE INSPECTED AND FOUND APU INOP AND AUTO SHUT DOWN CAUSING SMOKE IN CABIN. MAINTENANCE REPLACED THE APU AND OPERATIONAL CHECKS WJan 3, 2011 · N16561 · Emb EMB145LRSDR HALA2011010300002Ecu · malfunctionedETOPS SIGNIFICANT SYS - APU SHUTDOWN AUTO AT GATE. NOTE, WINDY CONDITION. R & R APU ECU IAW AMM 49-61-05. GROUND RUN AND OPS CHECK GOOD. NO FAULTS NOTED.Jan 3, 2011 · N590HA · Boeing 7673CBSDR CA110106013Apu · failedWHEN THE APU WAS STARTED BEFORE THE FIRST FLIGHT IT FAILED TO START, AND THERE WAS A "BIG BANG" HEARD (SIMILAR TO A SMALL EXPLOSION) AND SOME SMOKE CAME OUT OF THE TAIL SECTION. A SECOND ATTEMPT FAILED. AFTER THE LAST FLIGHT WHEN WE INSPECTED THE APU AREA, TJan 1, 2011 · Bombdr DHC8400SDR USAA20110103BB001Fan · failedFLT 740. DURING CRUISE FLT, APU HAD AN AUTO-SHUTDOWN FAULT LIGHT ILLUMINATE, WITH AN EICAS MESSAGE APU FAULT DISPLAYED. ACFT ALREADY HAD THE RIGHT ENGINE GENERATOR SYSTEM INOPERATIVE UNDER THE APPROPRIATE MEL PROVISIONS. THE FLIGHT DIVERTED TO FLL AND LANDEDec 31, 2010 · N256AY · Boeing 7672B7SDR UALA2010122704719Apu · smokeAPU AUTO SHUTDOWN WITH SMOKING TAILPIPE, NO FIRE WARNING. INSPECTED TAILPIPE & APU COMPARTMENT, NO OIL OR FUEL LEAK NOTED. AFTER APU SHUTDOWN, NOTED OIL QTY AT .5 QUARTS. SERVICED TO FULL WITH 3 QUARTS BUT NO TIME TO RESTART & TROUBLESHOOT BEFORE DEPARTURE. Dec 27, 2010 · N668UA · Boeing 767322SDR ASOA201002020Apu · contaminatedAPU AUTO SHUTDOWN AFTER TAKEOFF. ATTEMPTED TO RESTART APU ON DESCENT AND AFTER START WE SMELLED A STRONG ODOR AND SMELLED LIKE FUEL. (EMERGENCY DECLARED) CLEANED OUT DE-ICING FLUID FROM APU FIRE BOX. PERFORMED OPS CHECK OF THE APU SYS. NO MORE DE-ICING FLUIDDec 26, 2010 · N833AS · Cndair CL6002B19SDR ASAA1058706Apu · faultySMELL / ODOR DETECTED IN CABIN AND FLT DECK ON CLIMB OUT RETURN TO ANC. DIVERSION TIME 10 MINUTES. PERFORMED CABIN ODOR TROUBLESHOOTING REF AMM 05 60 00 280 801C1 & ETOPS MANUAL 05 60 00. INSPECTED CABIN AND CARGO AREAS FOUND NO VISUAL CONTAMINANTS. DEBRIEDec 26, 2010 · N559AS · Boeing 737890SDR UALA2010122304695Relay · faultyAPU WOULD NOT START IN FLT. REPLACED APU INLET DOOR RELAY (K176). OPERATED INLET DOOR NUMEROUS TIMES WITH NO DISCREPANCIES & INSP. INLET DOOR FAIRING AND LINKAGE. RECOMMEND REPLACING ECU BOX (PRECAUTIONARY). REPLACED APU CONTROLLER, OPS CHECK OK.Dec 23, 2010 · N552UA · Boeing 757222SDR MYWA100134Apu · malfunctionedETOPS SIGNIFICANT SYSTEM: APU AUTO SHUTDOWN IN FLIGHT. LOW OIL PRESSURE LIGHT ILLUMINATED. REPLACED APU, OPS CHECK OK.Dec 18, 2010 · N737KA · Boeing 7377BXSDR CA101221001Engine · seized(CAN) APU WAS STARTED PRIOR TO EARLY MORNING DEPARTURE, RAN FOR APPROXIMATELY 10 MINUTES BEFORE FAILURE. ROTATING COMPONENTS WERE FOUND SEIZED. CAUSE OF FAILURE TO BE DETERMINED AT REPAIR FACILITY.Dec 17, 2010 · Cndair CL6002B19SDR UALA2010121504570Apu · smokeAPU ON AT GATE, EXCESSIVE SMOKE OUT EXHAUST, FUEL PRESS REG LOW ON ECAM. APU OVERTEMP-AUTO SHUTDOWN. APU OFF, NO SMOKE OUT EXHAUST AFTER SHUTDOWN. NO SMOKE OR ODOR IN CABIN. APU SWITCH TO OFF, APU INLET DOOR VISUAL CHECKED CLOSED. REF: TSM 490000-810 & IAWDec 13, 2010 · N826UA · Airbus A319131SDR ASAA1058615Apu · malfunctionedDESCENDING THROUGH 5000 FEET SOUR "DIRTY SOCKS" SMELL PRESENT IN FLT DECK. CONFIRMED APU IS THE SOURCE OF CABIN ODOR REF TASK 05 60 00 280 801C1. ALSO RAN BOTH PACKS WITH BOTH ENGINES. SMELL ONLY RETURNED WHEN APU WAS SELECTED. REMOVED AND REPLACED APU PERDec 8, 2010 · N587AS · Boeing 737890SDR ASAA1058569Apu · oil consumptionAPU IS EXHIBITING AN ADVERSE OIL CONSUMPTION TREND. REPLACED APU ACCOMPLISHED T/C 78349010 ACCOMPLISHED APU OPERATIONAL CHECK REF MM 49 11 00.Dec 1, 2010 · N579AS · Boeing 737890SDR DXTA2010112904326Apu · leakingWHEN PULLING POWER BACK FOR DESCENT, AS SOON AS HP VALVES OPENED, GOT VERY STRONG "LIGHTING A MATCH" ODOR IN THE COCKPIT. R & R APU IAW CMM 49-10-10. OPS & LEAK CHECKED GOOD.Nov 26, 2010 · N922QS · Cessna 750SDR DXTA2010112904324Apu · odorVERY STRONG FUEL ODOR IN CABIN WITH APU RUNNING. BURNS EYES. SEEMS TO DISSIPATE AFTER APU SHUTDOWN AND ONLY ENGINES RUNNING. REMOVED CABIN & COCKPIT COALESCER SOCKS & CLEANED IAW MM 12-10-01, REV 40. COMPRESSOR HOUSING IN INLET VERY OILY. PERFORMED GEARBOXNov 26, 2010 · N922QS · Cessna 750SDR ASAA1058533Apu · oil consumptionAPU HAS A HISTORY OF OIL SERVICING CURRENT APU OIL CONSUMPTION .06 QPH GROUNDED YES. REPLACED APU IAW AMM 49 11 00 400 803 OPS CHECK AND LEAK CHECK OK.Nov 21, 2010 · N581AS · Boeing 737890
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