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 SWIA201333738Apu · malfunctionedAPU BLEED PACKS LOW, STARTED TO GET SMOKE SMELL. SWITCHED TO ENGINE BLEEDS & SMELL WENT AWAY. FLT#5304 REPLACED APU ASSEMBLY IAW AMM. PN: 3800376-2 SN ON: P-401 SN OFF: P-421.Jun 19, 2013 · N582SW · Emb EMB120ERSDR UALA2013061704191Apu · shutdownAPU AUTO SHUTDOWN DURING ENGINE START.Jun 17, 2013 · N127UA · Boeing 747422SDR ASMF201306005Apu · damagedDURING TRANSIT CHECK, DETECTED SMOKE AND STRONG NOISE WAS HEARD IN THE APU. MX PERSONNEL PERFORMED REVISION DETECTING INTERNAL DAMAGES IN THE APU; SO THE REPORT WAS DEFERRED IAW MEL 49-1 CAT C. MX PERSONNEL REPLACED THE APU IAW AMM 49-11-00, TESTED CORRECT.Jun 12, 2013 · N851AM · Boeing 737752SDR USAA2013061000015Bearing · seizedJUST PRIOR TO PUSHBACK, WITH CREW AND PAX ON BOARD, SMOKE BEGAN TO FILL THE COCKPIT & CABIN. SMOKE IN THE TAIL SECTION AND BRIEF FLAMES COMING FROM APU EXHAUST WERE OBSERVED. CREW EVACUATED THE ACFT USING ESCAPE SLIDES. PRIOR TO EXITING THE COCKPIT, CREW NOTJun 8, 2013 · N904AW · Boeing 7572S7SDR UALA2013060703980Apu · inoperativeAPU AT ALTITUDE, DID NOT START - COLD SOAK.Jun 7, 2013 · N221UA · Boeing 777222SDR QXEA2013060701061Apu · unknownFAILED APU START ATTEMPT. STRONG FUEL ODOR IN COCKPIT & FUEL SPILLED ON GROUND UNDER APU. INTERROGATED CDS, FOUND IGNITION FAULT. PERFORMED START OF APU WITH NO DEFECTS. OK FOR SERVICE. COULD NOT DUPLICATE.Jun 7, 2013 · N431QX · Bombdr DHC8402SDR USAA2013061000004Apu · contaminatedF/A'S REPORTED A "DIRTY SOCK" SMELL DURING DESCENT AND ON GROUND WITH APU AND PACKS RUNNING. ALSO REPORTED HEADACHES AND TIGHTNESS OF CHEST. STARTED AT TOP OF DESCENT AFTER POWER RETARDED WHILE IN MANAGED MODE. MX ACCOMPLISHED JOB CARDS 26L00021001 AND 26L00Jun 7, 2013 · N825AW · Airbus A319132SDR FDEA201306041192Fire Warning · false indicationDURING PRE-START & GROUND LOADING, RECEIVED WORD OF A SUSPECTED APU FIRE. FIRED BOTH BOTTLES. APU RUNNING AT FULL POWER. AFTER AUTO SHUTDOWN BLACK SMOKE SEEN COMING FROM APU TAIL PIPE. PERFORMED INSPECTION OF APU BAY WITH NO DEFECTS NOTED. NO EVIDENCE OF Jun 4, 2013 · N304FE · Doug MD1030FSDR UALA2013052803686Sensor · faultyLOW APU PRESSURE ON START. 8 PSI. HAD TO BOOST APU TO START. SUP: AFTER DE-BRIEF CREW, THEY HAD GOOD PRESSURE UNTIL THEY ATTEMPTED AN ENGINE START IN AUTO. THE PRESSURE SLOWLY DROPPED TO 8 PSI WHEN THEY INITIATED AN APU BOOST TO RECOVER THE LOW PRESSURE. REMay 23, 2013 · N412UA · Airbus A320232SDR UIEA2013052100296Unknown · unknownAPU RELIABILITY COLD START; C-SAT= -59 SAT; FL= 400 NR OF ATTEMPTS 2; SUCCESSFUL. ON FIRST START ATTEMPT RECEIVED AN "APU DOOR" STATUS MESSAGE. APU START ON GROUND NORMAL, NO STATUS MESSAGE PRESENT IAW AMM 49-1-01 IAW MCC 3 START ATTEMPTS ALLOWED; OK FOR ETOPMay 21, 2013 · N644GT · Boeing 7673JHFSDR HALA2013051700060Packing · leakingVISIBLE NOXIOUS CLOUD FROM PACKS WHEN USING APU AIR. FUMES REMAIN AFTER APU INOPERATIVE. ODOR TASTED LIKE VAPORIZED OIL. LAST LEGS FUMES INCREASING DURING FLIGHT. R & R APU SPEED PROBES PACKINGS AND R & R LT AND RT COALESCER BAGS IAW AMM 21-54-08, LEAK ANDMay 17, 2013 · N493HA · Boeing 717200SDR UALA2013051303318Controller · inoperativeAPU WILL NOT START. APU HANGS BETWEEN 27-40 PERCENT AND BATTERY DISCHARGE AT START SEQUENCE NORMAL, RESET OF ECU ALLOWS FOR NORMAL START. TROUBLESHOT IAW 49-61-00. REPLACED ECU AND STARTER IAW AMM. APU START NORMAL. APU CONTROLLER MR49613 OFF-43 ON-122. STARTEMay 12, 2013 · N674UA · Boeing 767322SDR DXTA2013050605373Apu · fodAFTER STARTING APU, A BURNING ODOR CAME FROM APU. WENT OUTSIDE AND FOUND FLAMES COMING FROM EXHAUST ALONG WITH DEBRIS FROM A BIRDS NEST. SOME OF THE STICKS AND GRASS WENT INTO THE INTAKE. SHUTDOWN APU AND DISCHARGED A PORTABLE FIRE EXTINGUISHER. CLEANED OMay 5, 2013 · N617QS · Cessna 560XLSDR VNAA2013042100014Apu · seizedCREW REPORTED APU AUTO SHUTDOWN AT GATE AND SMOKE ODOR IN CABIN. MAINTENANCE TROUBLESHOT AND HEARD METAL GRINDING NOISE. MAINTENANCE REMOVED AND REPLACED APU ASSEMBLY AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.Apr 21, 2013 · N248PS · Cndair CL6002B19SDR USAA2013042300013Apu · unserviceableCREW REPORTED THE AIRCRAFT RETURNED TO GATE FOR ODOR COMING FROM AIR CONDITIONING IT SEEMS. ODOR WAS ISOLATED TO APU. THE NEXT DAY DURING FLIGHT 1649 (DCA TO TPA), FLIGHT ATTENDANT REPORTED AN ODOR IN CABIN DURING DESCENT BETWEEN APPROXIMATELY 16,000 FEET ANApr 21, 2013 · N744P · Airbus A319112SDR HALA2013041700039Engine · making metalAPU AUTO SHUTDOWN. LOW OIL PRESSURE FAULT ON ECU. DP POPPED ON OIL FILTER. METAL PARTICLES FOUND ON GEARBOX CHIP DETECTOR. REPLACED APU IAW M266, AUXILIARY POWER UNIT (APU) CHANGE.Apr 17, 2013 · N596HA · Boeing 767300SDR ASAA2013040594378Apu · failedAPU PERFORMED AUTO SHUTDOWN MAINT MESSAGE STARTER GEN CLOGGED. REPLACED APU ASSY IAW T/C 78349010. OPS CHECKED NORMAL.Apr 5, 2013 · N592AS · Boeing 737890SDR REXA2013040200714Apu · shutdownAFTER TAKEOFF THE APU SHUTDOWN ON IT'S OWN. NO INDICATIONS WITH IT, JUST TURNED OFF. WE HAD THE AIRCRAFT DE-ICED AT THE OUTSTATION AND SMELLED DE-ICE FLUID AFTER TAKEOFF BEFORE THE APU SHUT DOWN NEARING DTW. WE RESTARTED THE APU. (CONTINUED ON REMARKS CAT)Apr 2, 2013 · N8646A · Cndair CL6002B19SDR ASAA2013033194311Apu · faultedAPU COLD SOAKED, START ATTEMPT FAILED DUE TO APU FAULT. FAULT LIGHT REMAINED ILLUMINATED, START WAS ATTEMPTED AT 38,000 FT. INTERROGATED CDU MAINT MESSAGE 49-31016 INDICATED- OVERTEMP SHUTDOWN. REVIEW OF APU REPORT 34 DATA SHOWS APU START SWITCH WAS NOT SELMar 31, 2013 · N592AS · Boeing 737890SDR UALA2013032802012Switch · faultyAPU FAULT NO START 2 ATTEMPTS. APU INOP. DF. REF MEL 49 11D. INF- :BIT APUC FAULTING THE FAN VALVE. INF- :IPC 49-51-00-00K PAGE 1 ITEM 100. (PCN 645-3645). RPL- :DISREGARDED NUISANCE OIL COOLER FAN AIR VALVE. VALVE HAS BEEN ELIMINATED REF POST SB 49-73-9Mar 28, 2013 · N655UA · Boeing 767322SDR UALA2013032802016Apu · leakingDUE TO HISTORY OF APU HOC, AND CONSULTATION WITH TOMC, FILL APU OIL LEVEL TO FULL, RAN APU FOR TWO HOURS WITH APU BLEED OFF. APU BURNED 1 QT OF OIL. NO LEAKS FROM LUBE DRAINS. DID FIND OIL LEAKING FROM SURGE VALVE COUPLING DUCT AT AFT DUCT MOUNT POINT. APUMar 28, 2013 · N212UA · Boeing 777222SDR ASOA20130325022CIntake Duct · contaminatedTHE CREW REPORTED AT APPROX 500FT AGL STRONG ODOR OF SMOKE AND VISUAL SMOKE COMING INTO COCKPIT THROUGH PACK DUCTWORK. IMMEDIATELY TURNED OFF PACKS AND RECIRCULATING FAN. SMOKE SUBSIDED AND THE CREW PERFORMED EMERGENCY AIR RETURN AND LANDED WITHOUT FURTHER IMar 25, 2013 · N27152 · Emb EMB145XRSDR USAA2013032700018Apu · leakingWITH AIRCRAFT PARKED AT GATE, FLIGHT ATTENDANT HAD NOTICED A "DIRTY SOCK" SMELL AFTER APU BLEED WAS ON FOR ABOUT FIVE MINUTES. MAINTENANCE FOUND INTERNAL OIL LEAKING IN APU. OIL WAS COMING OUT OF PLENUM DRAIN. REMOVED AND REPLACED APU IAW JOB CARD 26L310490Mar 25, 2013 · N827AW · Airbus A319132SDR UALA2013032601909Apu · inoperativeAPU INOPERATIVE. REPLACED APU.Mar 25, 2013 · N574UA · Boeing 757222SDR 2013FA0000200Seal · leakingDURING CRUISE, FLIGHT LEVEL 41.0, FLIGHT CREW BEGAN TO SMELL SMOKE AND NOTICED THE COCKPIT PAC WAS RUNNING HOT AND UNCONTROLLABLE. RAN CHECKLIST AND SHUTDOWN PAC. APPROXIMATELY FIVE MINUTES LATER, NOTICED THE CABIN PAC WAS ALSO RUNNING HOT AND UNCONTROLLABLE. Mar 23, 2013 · N767XJ · Cessna 750SDR ASOA20130322019Apu · odorTHE CREW REPORTED APU FAILED ACCOMPANIED BY STRONG BURNING ODOR. MX INSPECTED AND REPLACED THE APU. OPS CHECKS WERE GOOD.Mar 22, 2013 · N15572 · Emb EMB145LRSDR UALA2013032101770Apu · failedAPU INOPERATIVE. REPLACED SURGE VALVE, BATTERY AND STARTER. APU STILL HANGS AT 30 TO 40 PERCENT. SWAPPED ECU AND BATTERY CHARGER, NO HELP. INSTALLED OLD CHARGER AND ECU. REPLACED APU.Mar 20, 2013 · N552UA · Boeing 757222SDR DXTA2013032105327Apu · seizedAFTER LANDING AT DESTINATION, STARTED APU DURING TAXI IN. START NORMAL AND GENERATOR LOADED. AFTER 20 SECONDS, A HARD THUMP AND APU DROPPED OFF LINE. SMELLED ELECTRICAL FUMES IN IN MAIN CABIN. SECURED APU. APU WAS SEIZED. ATTEMPTED TO CONNECT WITH LAPTOPMar 20, 2013 · N697QS · Cessna 560XLSDR DXTA2013032005325Apu · smokeWITH APU RUNNING ON ENGINE START, CABIN FILLED WITH SMOKE. SHUTDOWN ENGINES AND APU, LATER STARTED APU AND CABIN FILLED WITH SMOKE, APU SHUTDOWN BY ITSELF. STARTED RT ENGINE AND SMOKE CAME INTO CABIN AGAIN, SHUTDOWN RT ENGINE. CHECKED APU OIL AND BOTH LIGMar 19, 2013 · N642QS · Cessna 560XLSDR UIEA2013031600131Apu · malfunctionedAPU FAULT ON START ATTEMPT AFTER LANDING. OPENMar 16, 2013 · N642GT · Boeing 7673Y0SDR ASOA20130227269Apu · smokeON TAXI OUT, SMOKE IN AIRCRAFT, RECEIVED A APU FIRE MESSAGE. SMOKE IN CABIN AND COCKPIT DURING TAXI, APU FAIL MESSAGE ON EICAS. R & R APU.Feb 24, 2013 · N19966 · Emb EMB145LRSDR CA130221008Apu · shutdown(CAN) ACFT DEPARTED WITH ENGINE 1 IDG INOPERATIVE. APU AUTOSHUTDOWN DURING CRUISE. RESTARTED, BUT THEN FAILED AGAIN AND UNABLE TO RESTART. FLIGHT DIVERTED AND LANDED, AUTO SHUTDOWN. IDG NR 1 PREV SNAGGED WERE ABLE TO DESCEND AND RE-START APU. NO FURTHER IFeb 21, 2013 · Airbus A320211SDR A6WA201302224015Apu · contaminatedIND DEICE APPLIED FULL BODY TYPE IV (NOT REQUESTED). RECEIVED SUSPECT DEICE SMOKE IN CABIN ON TAKEOFF AND AGAIN ON DECSENT IN PHL. SUSPECT TYPE IV DEICE FLUID CONTAMINATION OF APU. INJESTION OF DEICING FLUID IN APU. REQUIRE REMOVAL AND IN HOT SECTION Feb 21, 2013 · N450AW · Cndair CL6002B19SDR CA130221004Apu · shutdown(CAN) PILOT HAD UN-COMMANDED SHUTDOWN OF APU ON THE GROUND. APU WOULD NOT RESTART AFTER. MAINTENANCE DIAGNOSTIC COMPUTER SHOWED HIGH APU OIL TEMPERATURE. INSPECTED APU OIL TEMPERATURE SENDER FOUND OK. FOUND OIL FILTER BYPASS INDICATION PIN EXTENDED. REMOVEFeb 14, 2013 · Gulstm G100SDR ASAA2013021493918Apu · malfunctionedAPU FAULT LIGHT ON START. APU DID NOT LIGHT OFF AT ALL. RAN SYS TEST IAW FIM 49-40, TASK 803 STEP A THRU E ALSO STARTED APU 3 TIMES NO DEFECTS NOTED. SYS OPS CHECK GOOD.Feb 14, 2013 · N566AS · Boeing 737890SDR ASAA2013021393876Apu · shutdownAPU SHUTDOWN AT GATE JUST PRIOR TO PUSHBACK. PERFORMED VISUAL INSPECTION OF APU. NO OIL LEAKS NOTED AND OIL LEVEL VISUALLY CONFIRMED TO BE FULL. PERFORMED FAULT ISOLATION PROCEDURES IAW FIM AR49-90-00-810-803. DURING MULTIPLE STARTS AND STOPS THERE WERE NO Feb 13, 2013 · N506AS · Boeing 737890SDR DXTA201302145286Engine · sparksAFTER ENGINE START, LINEMAN ADVISED HE NOTICED SPARKS AND BLACK SMOKE OCCASIONALLY COMING FROM APU EXHAUST. SHUTDOWN APU.Feb 13, 2013 · N916QS · Cessna 750SDR USAA2013020800016Apu · leakingAFTER STARTING BOTH ENGINES DURING INITIAL TAXI, SIGNIFICANT TURBINE OIL ODOR IN FLIGHT DECK AND CABIN. REMOVED AND REPLACED APU. VENDOR TEARDOWN RESULTS SHOWED NO FAULT FOUND. NO REPEAT EVENTS.Feb 6, 2013 · N637AW · Airbus A320231SDR USAA2013020800015Seal · leakingTHERE IS AN ODOR ON THE AIRCRAFT WITH APU ON OR OFF AND BOTH ENGINES ON. ODOR REMAINED WITH BLEEDS OFF DURING DE-ICE. ALSO HAD STATUS MESSAGE ON ECAM "ONE PACK ONLY IF WAI ON". BLEED PAGE NORMAL. MAINTENANCE REMOVED AND REPLACED THE APU. LOAD COMPRESSOR SFeb 5, 2013 · N103US · Airbus A320214SDR SWIA201332745Apu · malfunctionedSTARTED APU BUT HAD NO LIGHT OFF, SHUT DOWN APU, STARTED APU SECOND TIME AND IT STARTED NORMALLY. FOLLOWING APU START HOWEVER, HAD FUEL SMELL ENTER COCKPIT. (FLT7368) INSPECTED APU, NO LEAKS NOTED. COMPLIED WITH APU START/STOP. NO SMELL NOTED AT THIS TIMEFeb 1, 2013 · N433SW · Cndair CL6002B19SDR CA130214020Apu · contaminated(CAN) TSB REPORTED ON FEB 5, 2013 SHORTLY AFTER TAKEOFF, SMOKE EMANATED FROM THE COCKPIT AND CABIN VENTS. THE FLIGHT CREW DECLARED AN EMERGENCY AND RETURNED TO ORIGIN. THE ACFT LANDED SAFELY WITHOUT FURTHER INCIDENT. ARFF INSPECTED THE ACFT, THERE WAS NO IJan 31, 2013 · Cndair CL6002B19SDR UALA2013013000552Apu · making metalAPU AUTO SHUTDOWN, APU CONTROL MESSAGE PRESENT. FUEL CLUSTER METERING VALVE LVDT CIRCUIT FAILED. CHECK OF CHIP DETECTOR FOUND METAL. INSTALLED NEW APU PER MM 49-11-01.Jan 30, 2013 · N774UA · Boeing 777222SDR USAA2013013100011Turbine Wheel · separatedMAINTENANCE REPORTED THE APU INOPERATIVE/OVERSPEED SHUTDOWN. LOUD BANG HEARD AFTER RUNNING. MAINTENANCE FOUND APU TURBINE WHEEL SEPARATION/UNCONTAINED FAILURE. REMOVED AND REPLACED APU ASSEMBLY PER J/C 03L70349004. ALSO, ACCOMPLISHED APU TURBINE WHEEL SEPAJan 30, 2013 · N443US · Boeing 7374B7SDR DXTA2013012905264Apu · smokeDURING "BEFORE START" CHECKLIST AND WHILE STARTING THE APU, SMOKE WAS NOTICED IN THE CABIN. THE APU HAD COMPLETED IT'S START SEQUENCE AND THE APU GENERATOR WAS "ON". THE "BLEED AIR" SWITCH WAS NOT ON. SHUT OF THE APU AND SHUT OFF THE THE REST OF THE EQUIPMENTJan 28, 2013 · N675QS · Cessna 560XLSDR UALA2013012400421Actuator · failedAPU FAILED AT GATE. APU INOPERATIVE. APU FAILED AT PUSHBACK. ACP BITE OF ECU FOUND INLET DOOR FAULT. ACP VISUAL AND AUDIBLE CK OF ACTUATOR AND CHECKED SECURITY OF DOOR OPEN SWITCH. STARTED APU SEVERAL TIMES AND LOADED APU. OPERATION NORMAL IAW AMM.Jan 23, 2013 · N548UA · Boeing 757222SDR R61A20130118065Apu · malfunctionedCREW REPORTED WHILE SITTING AT THE GATE WITH THE APU RUNNING NOTICED A HOT ELECTRICAL SMELL THEN SMOKE FILLED THE CABIN. A RAMP AGENT ALERTED THE CREW THAT THE APU WAS ON FIRE AND THROWING SPARKS. THE CREW UTILIZED THE EMERGENCY STOP AND FIRE TRUCKS WERE ROLJan 16, 2013 · N803MD · Emb ERJ170100SUSDR QXEA2013011300049Unknown · smokeDURING GROUND RUN, FOUND EXCESSIVE SMOKE COMING OUT OF FUEL CONTROL VENT LINE AND OFF FUEL CONTROL UNIT. PERFORMED OPS TEST OF THE AUXILARY POWER UNIT IAW AMM TASK 49-00-00-710-801, OPS TESTED GOOD. NO OTHER DEFECTS NOTED. RETURNED TO SERVICE. COULD NOT DJan 13, 2013 · N440QX · Bombdr DHC8402SDR AALA20130111005Apu · failedABQ INFLIGHT LAS-DFW - CREW REPORTED AUXILIARY POWER UNIT FAILED WITH RIGHT GENERATOR ON MEL. EMERGENCY DECLARED FLIGHT DIVERTED ABQ LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT GENERATOR. SYSTEM GROUND CHECK NORMAL OPERATION.Jan 11, 2013 · N480AA · Doug DC982SDR USAA2013011000004Apu · leakingAFTER APU START, STRONG CABIN ODOR WAS NOTICED AFTER SELECTING BLEED AIR ON. MAINTENANCE FOUND OIL LEAKING FROM LOAD COMPRESSOR WITNESS DRAIN. REMOVED AND REPLACED THE APU.Jan 4, 2013 · N176UW · Airbus A321211SDR UALA2012123107463Apu · leakingAT FL220 FLIGHT REPORTED MID LAV SMOKE DETECTOR ACTIVATED. GRAY HAZE IN CABIN. OIL CONTAMINATION RMVL DUE TO RECENT BLEED DUCT CONTAMINATION CAUSED BY APU OIL LOSS. APU REMOVED AND REPLACED, ACCP TOD MM49- 11-01, UP TO AND INCLUDING, INSTALLATION STEP 5, ITDec 29, 2012 · N584UA · Boeing 757222
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