JASC 4900

Service difficulty reports · 1,840

Reports filed under 4900 · Airborne Auxiliary Power Unit (APU) 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 = '4900'
  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 ASOA2020031614005Bar · looseSDF - FLIGHT 4448 THE REW REPORTED THAT WHEN APU STARTED WITH THE ENGINES RUNNING HEARD A LOUD CRACKLING AND SMELL OF BURNT ELECTRICAL, ALSO HAPPENED DURING ENGINE SHUT DOWN. THE AIRCRAFT LANDED AT SDF WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT Mar 11, 2020 · N11536 · Emb EMB145LRSDR SIMA202002265004Apu · contaminatedSUPPLEMENTAL AFTER LANDING AND STARTING APU STRONG OIL SMELL IN COCKPIT AND CABIN/BOTH ENGINES STILL RUNNING SMELL DISAPATED WHEN ENGINS SHUT OFF/ NO EICAS INDICATIONS.-C/A-PERFORMED FIM TASK 21-20-00-810-801 FOUND RESIDUAL DEICE FLUID IN APU COMPARTMENT. REMOFeb 25, 2020 · N234JW · Emb ERJ170200LRSDR UIEA2020022410300Warning Message · false activationAPU FAULT EICAS MSG.(<P>A/C IS IN MAINTENANCE.</P><P>INSPECTED APU FOR FAULTS, APU CONTROLLER SHOWED NO FAULTS, NO MESSAGE ON EICAS, OPERATED APU THRU SEVERAL CYCLES, NO FAULTS NOTED PER AMM 49-11-00.</P>)Feb 20, 2020 · N641GT · Boeing 76738ESDR UIEA2020021320244Switch · malfunctionedAPU ISOLATION VALVE SWITCH SHOWS FLOW R+R INDICATION WHEN PUSHED IN AND OUT.(<P>THIS ITEM DEFERRED UNDER MEL 49-11-01-01, CAT "C", DUE DATE 21 FEB 20. MEL #124545. PLACARD INSTALLED, MX CONTROL NOTIFIED.</P><P>LP 1068786 - M2: REMOVED AND REPLACED KORRY SWITCHFeb 11, 2020 · N1381A · Boeing 767316SDR UIEA2020020400184Unknown · unknownREPEAT WRITE UP (1ST WRITE UP ON LP #1182887), ON BOTH ENGINE STARTS DUCT PRESSURE DROPPED TO AROUND 20 PSI AND N2 MAX MOTORED TO 12%-19% N2 BEFORE RUN SWITCHES ENGAGED (BOTH PACKS OFF).(<P>PERFORMED BITE TEST OF APU CONT. UNIT, NO FAULTS. APU DUCT PRESS NORMAFeb 1, 2020 · N1709A · Boeing 767375SDR ASAA2020012731956Apu · unknownAPU EMER SHUT DOWN, GROUNDED - YES. PERFORMED OPS CHECK IAW AMM 49-00-00 PB 501. NO FAULTS NOTED.Jan 27, 2020 · N286VA · Airbus A320214SDR UIEA2020012760127Ecu · malfunctionedNO APU PNEUMATIC PRESSURE FROM APU, PERFORMED AIR STARTS, APU IS GOOD. PERFORMED APU BITE TEST IAW FIM 49-11 FT 958. FAULTED P2 SENSOR. REPLACED THE SENSOR IAW AMM 49-61-04. NO HELP. REPLACED ECU IAW AMM 49-61-05. OPS CHECKED GOOD. NO DEFECTS NOTED.Jan 26, 2020 · N1181A · Boeing 7673Y0SDR UIEA2020011600079Apu · unknownAPU INOPERATIVE. PERFORMED AN OPS CHECK OF THE APU SYSTEM, RUNNING ENGINE AND AC LOAD IAW 71-00-00. ALL SYSTEMS PASSED TWO TIMES AND NO AUTO SHUTDOWN.Jan 16, 2020 · N663GT · Boeing 767324SDR ASAA2020010831810Unknown · malfunctionedAPU WILL NOT START. GROUNDED - YES. CK'D AND REL PER MEL 49-1B. FAULT MESSAGE 49-41012 NO APU ROTATION SHUTDOWN. NO EVIDENCE OF HEAT DAMAGE OR DELAMINATION. STARTED APU AND PERFORMED BITE CHECK OF CDU NO CURRENTS FAULTS LOGGED. STARTED APU 5 TIMES WITH NO ISSUJan 6, 2020 · N431AS · Boeing 737990ERSDR QXEA2019123100484Apu · unknown"ON TAXI TO GATE, AIRCRAFT BEHIND US REPORTED DARK ABNORMAL EXHAUST OUT OF APU, APU WAS SHUT DOWN WITH NO ABNORMAL INDICATIONS." REMOVED FROM SERVICE. OPERATIONAL CHECK OF APU IAW E175 AMM 49-10-00-700-801-A. NO SMOKE NOTED, ALL OTHER PARAMETERS NOMINAL. COULDDec 30, 2019 · N648QX · Emb ERJ170200LRSDR UIEA2019122436128Apu · unknownAPU INOP - STARTED APU 3 TIMES AND EACH START HAD APU FAULT. TROUBLESHOT PER FIM 49-11 FT 987 MINI FLAG CODE 29, 48.THIS BECOMES DMI 122493, CAT 'C', DUE 02-01-20, MEL 49-11-01A. REMOVED AND REPLACED APU IAW AMM 49-11-00. OPS CHECK OF ALL OTHER APU SYSTEMS Dec 22, 2019 · N1381A · Boeing 767316SDR RAIA2019123070005Mount · gougedAPU LOWER RT MOUNT WAS GOUGED TOP SIDE. REMOVED AND REPLACED APU LOWER RT MOUNT....Dec 17, 2019 · N832HK · Emb EMB145LRSDR F3LA201911270144Apu · leakingLP1142467 ITEM 1 & 2 DISCREPENCY --- AT APPROX 10 MI FINAL, STRONG ODOR WAS SMELLED IN FLIGHT DECK. UPON LANDING PACK 1 WAS TURNED OFF WITH LITTLE CHANGE NOTED PACK 2 WAS TURNED OFF AND SMELL EVENTUALLY DISIPATED MOSTLY FLIGHT ATTENDANTS SAID THEY MIGHT HAVE SNov 23, 2019 · N910FR · Airbus A319112SDR GTIA2019112533816Apu · odorFUME EVENT AT 6,000 FT WHILE LEVELING OFF AND POWER WAS ADDED-PERFORMED TSM # 05-50-00-810-831-A. PERFORMED ISOLATION OF AIRBLEED SYSTEMS TO FIND SOURCE OF ODOR. DETERMINED THAT SOURCE OF ODOR CAME FROM PACK#2 AND APU.Nov 23, 2019 · N618NK · Airbus A320232SDR DALA201911206774Apu · contaminatedON NWALK AROUND FOUND FLUID DRAIN OUT OF APU NON RAM DOORS, NOTICED ODOR OF BURNING OIL IN JETWAY AND COCKPIT. SHUT APU DOWN AND PACKS OFF, FLUID BACK FLOWING OUT OF REAR NON RAM DOOR. C/W NO GO ODI ATA 2172. C/W W/C 2120-2367 SMOKE/ODOR TROUBLESHOOTING. CLEANNov 20, 2019 · N907DL · Doug MD88SDR 2020F00052Apu · odorN227MC WAS EN-ROUTE FROM RYY-BNA EMPTY FOR A CHARTER TRIP, AND THE CREW NOTED SMOKE IN THE CABIN. AN EMERGENCY WAS DECLARED, AND THEY DIVERTED TO DALTON, GA. AIRCRAFT LANDED WITH OUT INCIDENT. UPON INVESTIGATION BY CESSNA, IT WAS DISCOVERED THE ROOT CAUSE OFNov 14, 2019 · N227MC · Cessna 560XLSDR FDEA2019111522934Battery · smokeSTRONG BURNING ELECTRICAL SMELL MAIN CARGO COMPARTMENT T/S FOUND APU BATTERY SMOKING WITH A HEAVY BURNT SMELL. R&R APU BATTERY REF AMM 24-31-03-4. ALSO R&R APU BATTERY CHARGER REF AMM 24-31-04-4 PRECAUTIONARY. OPS CK'D GOOD. A/C OK FOR SERVICENov 12, 2019 · N921FD · Boeing 75723ASDR AALA2019111419016Apu · leakingAIRCRAFT WAS GROUNDED: APU AIR SMELLS LIKE DIRTY SOCKS, LOCKER ROOM BODY ODOR. MAINTENANCE DETERMINED APU SOURCE OF ODOR.***SUPPLEMENTAL INFORMATION: MAINTENANCE REMOVED REPLACED APU IAW JOB CARD 49-94-11 OPS AND LEAKS CHECKS GOOD.*** (CLOSED)Nov 10, 2019 · N355PU · Boeing 737823SDR SWIA2019122747235Duct · crackedAPU AIR INTAKE UPPER DUCT HAD SERVERAL CRACKS. REMOVED AND REPLACED THE UPPER COOLING AIR INTAKE DUCT IAW AMM.Nov 8, 2019 · N879AS · Cndair CL6002B19SDR CALA2019103101859Apu · odorNEED TO PER FORM AMM TASK 05-51-58-800-801C3 SMOKE/ODOR CONDITIO NAL INSP. NO SMOKE NOTED. ONLY ODOR. PERFORMED SMOKE/ODOR CONDITIONAL IN SP PER AMM 05-51-58-800-801C3. ONLY ITEM FOUND IS OIL IN EXHAUS T OF APU. NO OIL IN DUCTING. ENG RUNS REF LOG 3698004Oct 30, 2019 · N77014 · Boeing 777224SDR UIEA201910315813Warning Message · false activationAPU FAULT EICAS MESSAGE, 2 START ATTEMPTS.(<P>PERFORMED APU ECU BITE CHECK, NO CURRENT FAULTS FOUND REF AMM 49-61-05. APU OPS CHECK GOOD, NO FAULTS NOTED REF AMM 49-11-00.</P><P><BR DATA-MCE-BOGUS="1" /></P><P>NOTE: APU COLD SOAK MDDR 119880 WAS OPENED IAW DDGOct 29, 2019 · N1499A · Boeing 767328SDR DALA2019103006297Actuator · failedSHIP 5645 - DIV - TO LAS DUE TO LOSS OF LEFT ENGINE IDG AND FAILURE OF APU TO START (THREE ATTEMPTS). CORRECTIVE ACTION: R/R APU IGV ACT IAW B757 AMM 49-52. APU OPS AND LEAK CK GOOD. REPLACED LEFT IDG IAW B757 AMM 24-11 AND REPLACED LEFT GCU IAW B757 AMM 24-22Oct 29, 2019 · N545US · Boeing 757251SDR GTIA2019102434719Apu · odorDIRTY SOCK SMELL FWD, AFT FA AFTER LG EXTENSION -PERFORMED TROUBLESHOOTIN TO IDENTIFY CABIN ODOR TSM 05-50-00-810-831A FOUND APU AND PACK 1 TO BE AT FAULTOct 21, 2019 · N696NK · Airbus A320232SDR UIEA2019101875741Apu · faultedAPU FAULT ON START ATTEMPT.(<P>PERFORMED APU BITE TEST IAW AMM 49-61-05 AND RESTARTED APU. OPS CHECKS GOOD AT THIS TIME.</P>)Oct 17, 2019 · N1487A · Boeing 76731KSDR 2019FA0000343Shield · crackedAPU DEBRIS SHIELD CRACKED. ACCOMPLISHED EO 680-1750 DRAWING NUMBER 6900056 ECR 084205 DATED 10/14/19.Oct 17, 2019 · N346QS · Cessna 680CESDR UIEA2019101605732Knob · unsecureAPU SELECTOR KNOB IS LOOSE. RE-SECURED APU SELECTOR KNOB REF AMM 49-41-81, OPS CHECK NORMAL AT THIS TIME. </P>)Oct 15, 2019 · N1409A · Boeing 767306SDR ASAA2019101193989Fault Light · false activationAPU FAULT LIGHT/ APU GEN DROPPED OFF. GROUNDED - YES. PERFORMED APU BITE CHECK REF B737-800 FIM 49-60 TASK 801 NO CURRENT FAULTS LOGGED. PREVIOUS FAULT LOGGED 49-61127 FOUND TO BE INTERMITTENT. APU GROUND VERIFICATION CHECKS NORMAL.Oct 9, 2019 · N535AS · Boeing 737890SDR CALA2019101101732Apu · odorCREW REPORTS OZONE BURNING SMELL THROUGHOUT AIRCRAFT WITH BLEEDS ON. CREW SHUTDOWN ENG 1 BLEED AND SMELL DISSIPATED. SMELL RETURNED WITH APU BLEED ON. ACCOMPLISHED HIGH POWER RUN ON #1 ENGINE WITH ENGINE BLEEDS ON, NO DETECTION OF SMOKE ODOR OR FUMES IN THE CAOct 9, 2019 · N477UA · Airbus A320232SDR HALA2019100800405Apu · faultedETOPS SIGNIFICANT SYSTEM - APU FAULT, AUTO SHUTDOWN. NO FAULTS SHOWN ON PFR OR PREVIOUS FLY LEGS, TROUBLESHOT IAW TSM 49-62-00-810-870A APU OPERATION NORMAL. C/W OPS TEST OF AIR INTAKE FLAP IAW AMM 49-16-51-710-802A, OPS TEST NORMAL NO PREVIOUS SHUTDOWN FAOct 7, 2019 · N393HA · Airbus A330243SDR ASAA2019092493790Apu · warning lightAFTER LANDING, TRIED TO START APU BUT GOT THE FAULT LIGHT. TURNED APU SWITCH OFF. TRIED TO START AGAIN WITH SAME RESULT. ON THIRD ATTEMPT, APU STARTED NORMALLY. GROUNDED - YES. PERFORMED APU BITE TEST IAW B737-800 FIM 49-60-TASK 801. NO FAULT FOUND. PLACARD APSep 19, 2019 · N535AS · Boeing 737890SDR UIEA2019091805528Relay · failedAPU INOP DUE TO APU BATTERY. TRANSFERRED TO MDDR #117866 IAW AMM 49-11-01A, CAT 'C', DUE 27SEP19. MCC NOTIFIED. LP 1216012 - M4: REMOVED AND REPLACED RELAY K791 IAW SWPM 20-81-12. OPS CHECK NORMAL AT THIS TIME. THIS CLEARS DMI #117866. PLACARDS REMOVED AND MCCSep 17, 2019 · N1013A · Boeing 76736NSDR UIEA2019082635272Apu · inoperativeAPU INOP. PERFORMED OPERATIONAL CHECK OF APU IAW AMM 49-11-00, OPS CHECK GOOD.Aug 23, 2019 · N1427A · Boeing 767306SDR UIEA2019081505187Warning Message · false activationAPU BITE MESSAGE SHOWS ON LOWER EICAS DISPLAY.(<P>PERFORMED SATISFACTORY T/S AT LOWER EICAS DISPLAY IAW FIM 49-11 FAULT TREE 987. APU MESSAGE ISN'T SHOWING ON DISPLAY.</P>)Aug 14, 2019 · N1427A · Boeing 767306SDR UIEA2019080904984Apu · malfunctionedAPU FAILED TO START ON TAXI IN. PERFORMED MULTIPLE OPS CHECKS ON APU START AND CHECKED OUT OPERATIONAL EVERY TIME. NO DEFECTS NOTED IAW AMM 49-11-00.</P>)Aug 9, 2019 · N1499A · Boeing 767328SDR UIEA2019080904980Apu · malfunctionedAPU FAILED BEFORE ENG START WHILE IN BLOCKS. PERFORMED BITE CHECK, NO MSG IAW AMM 49-11-00. STARTED APU, NORMAL START, OPS CHECKED NORMAL. NO MSG NOTED.Aug 8, 2019 · N1373A · Boeing 76731KSDR O2GA2019081450701Apu · smokeWHILE ON GROUND WAITING FOR PASSENGERS TO ARRIVE AND APU RUNNING FOR OVER AN HOUR NOTICED SMOKE/HAZE IN THE COCKPIT. AIRCRAFT WAS SHUTDOWN AND EMERGENCY SERVICES CONTACTED. MAINTENANCE ISOLATED DISCREPANCY TO THE APU. APU SYSTEM WAS DEFERRED PER GAMA LLC MEL.Aug 7, 2019 · N507UP · Cessna 560XLSDR ASAA2019081263368Warning Light · illuminatedDURING APU START FAULT LIGHT ILLUMINATED. ONE REATTEMPT AND FAULT LIGHT ILLUMINATED AGAIN. GROUNDED - YES. ON DEFERRAL.Aug 6, 2019 · N570AS · Boeing 737890SDR QXEA2019080100302Unknown · unknownRAMP REPORTS THAT SPARKS WERE COMING FROM APU DURING STARTUP AND FLUID WAS LEAKING ONCE IT WAS RUNNING, START SEEMED NORMAL EXCEPT STARTER LIGHT STAYED ON LONGER THAN NORMAL. REMOVED FROM SERVICE. PERFORMED VISUAL INSPECTION OF APU, PERFORMED OPS TEST IAW AMM Aug 1, 2019 · N405QX · Bombdr DHC8402SDR UIEA2019072984872Apu · malfunctionedAPU INOP, 3 ATTEMPTS. PERFORMED APU ECU BIT CHECK. MINI FLAGS 21,26,29,36,38,42,48 AND 66 DISPLAYED. FURTHER T/S REQUIRED. SUCCESSFUL APU START 1 OF 3 ATTEMPTS. IAW AMM 49-11-00 + 49-61-05. REMOVED & REPLACED APU ECU. OPS CK GOOD. 3 SUCCESSFUL STARTS. DURINGJul 28, 2019 · N1487A · Boeing 76731KSDR ASAA2019070429949Unknown · malfunctionedPER DISPATCH RELEASE DID APU CSS. ATTEMPT # 1 AT 36,000' NO LIGHT OFF. ATTEMPT # 2 DESCENDING THRU FL 320, APU FAULT LIGHT. AFTER LANDING ATTEMPTED APU START, NO START & APU FAULT LIGHT. GROUNDED - YES. AFTER POWER DOWN RESTART APU PER AMM 49-11-00-710-801. OPJul 4, 2019 · N590AS · Boeing 737890SDR YENA201906273346Apu · leakingFT # 14, DIRTY SOCK SMELL IN FLT DECK DURING CLIMB & DECENT; INSPECTED PER INFO NOTICE 2017-TO15E. TABLE 1 FOUND APU INTERNAL LEAKING RAN BOTH ENG WITH BOTH PACK ON. NO ODOR COMING FROM EITHER PACK WHILE RUNNING BOTH ENG AT IDLE PULLED & COLLARD C/B L41 & L4Jun 23, 2019 · N625JB · Airbus A320232SDR YENA2019061960335Apu · odorFLT 179, DIRTY SOCK SMELL REPORTED BY NR 1, 2 AND 3 FA'S AFTER SHUT DOWN AT GATE. FA'S NOTICED ODOR DURING CLIMB, CRUISE & DESCENT. COCKPIT CREW NOTICE ODOR AT 4,000' AND ARRIVAL LASTING REMAINDER OF FLIGHT, NO ACTION TAKEN. C/W INFO NOTICE 2017-T015E SEC "Jun 16, 2019 · N524JB · Airbus A320232SDR AALA2019061879023Apu · fireAIRCRAFT WAS GROUNDED: DURING APU START, THE APU SHUT DOWN ALL ELECTRICITY AND AIR. BATTERY WAS DISCHARDING AND RAMP PERSONNEL NOTED FLAMES COMING FROM OUTSIDE THE APU TAIL PIPE AREA. FLAMES WRAPPED AROUND EXHAUST AND FLAMES EXTINGUISHED, NO FIRE EXTINGUISHINGJun 14, 2019 · N883NN · Boeing 737823SDR UIEA2019061004453Charger · malfunctionedAPU FAILED TO START (X3 ATTEMPTS). APU FAULT MSG ON EICAS.(<P>TRANSFER TO DMI 112857 IAW DDG 49-11-01A CAT 'C'.</P><P>LP 818924 - M6: REMOVED AND REPLACED APU BATTERY IAW AMM 24-31-04. OFF PART (SN: 062010, PN: 018550-000)</P><P>LP 818925 - M7: REMOVED AND REPJun 7, 2019 · N649GT · Boeing 767375SDR UIEA2019060544388Apu · malfunctionedWHEN STARTING RIGHT ENGINE, APU DUCT PRESSURE WENT FROM 30 PSI TO 10 PSI. ENGINE START W/IN PARAMETERS. PERFORMED OPS CHECK IAW AMM 71-00-00. OPS CHECK GOOD AT THIS TIME.Jun 3, 2019 · N1427A · Boeing 767306SDR AALA2019060549018Fan · failedAIRCRAFT WAS GROUNDED: PILOT REPORTED VERY STRONG (WET SOCK ODOR) AT RDU, ON CLIMB OUT, AND DECENT. DURING CRUISE, WENT AWAY. MAINTENANCE ACCOMPLISHED APU LEAK INSPECTION PER AMM 49-10-00 AND FOUND OIL SCATTERED. MAINTENANCE REPLACED OIL COOLING FAN PER MM Jun 2, 2019 · N837AW · Airbus A319132SDR UIEA2019060314363Apu · malfunctionedAPU FAILURE ON GROUND. PERFORMED ECU BITE AND NO FAULTS NOTED AS PER AMM 49-11-00. ACCOMPLISHED RUN-UP AND OPERATIONAL TEST OF APU AND AIR / ELEC OK PER AMM 49-11-00.May 31, 2019 · N640GT · Boeing 7673S1SDR UIEA2019053004356Not Reported · malfunctionedAPU NO DUCT PRESSURE.(<P>TRANSFERRED TO MDDR# 112450 MEL 49-11-01A CAT C. DUE 10JAN19.</P>)May 31, 2019 · N1321A · Boeing 767306SDR CA191216013Apu · malfunctioned(CAN) PER THE CREW DURING THE CRUISE PHASE AT 11,000FT CREW RECEIVED A APU FIRE INDICATION MESSAGE. CREW THEN CONSULTED THE QRH, DEPLOYED THE FIRE BOTTLE, DECLARED EMERGENCY AND LANDED WITHOUT FURTHER INCIDENT. UPON LANDING FIRE DEPARTMENT MET CREW AT A/C AND May 30, 2019 · Bombdr BD1001A10SDR AALA2019060329035O-Ring · leakingAIRCRAFT WAS GROUNDED: CA REPORTED THAT DURING DESCENT AND TAXI TO THE GATE, AROUND THE MOD ROWS, THERE WAS A BURNING/ACRID SMELL. ACCOMPLISHED CARD 26L000221001. TROUBLESHOOTING FOUND APU VENT O-RINGS LEAKING. ACCOMPLISHED CARD 26L00021002. REMOVED AND REPLAMay 28, 2019 · N667AW · Airbus A320232
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