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 UIEA2018022300268Warning Message · false activationAPU PRODUCED NO DUCT PRESSURE. PERFORMED APU ECU BITE TEST IAW AMM 49-61-05, NO FAULT FOUND, RESET ECU AND OPS CHECKED GOOD.Feb 23, 2018 · N1373A · Boeing 76731KSDR AALA201802229035Apu · faultedFLIGHT ATTENDANT REPORTED SMOKE IN THE CABIN. APU BLEED WAS TURNED OFF, SMOKE DISSIPATED. APU BLEED WAS TURNED ON AND FAULTED. AIRCRAFT WAS GROUNDED. ACCOMPLISHED APU BLEED TEST IAW TSM 36-12-00. TEST PASSED, OPS CHECKED GOOD. OPS CHECKED BOTH A/C PACKS,Feb 21, 2018 · N155NN · Airbus A321231SDR GTIA2018021902448Apu · contaminatedDIRTY SOCK ODOR REPORTED BY F/A DURING DESCENT. NR 2 PACK SHUT OFF. ODOR MIGRATED TO COCKPIT. NR 1 PACK SHUT OFF, AND RAM AIR OPENED. PERFORMED TSM 05-50-00-810-831-A, AND AMM 21-00-00-615-001. FOUND A LOOSE LINE AT THE APU. SECURED THE RETURN LINE ANDFeb 19, 2018 · N638NK · Airbus A320232SDR HALA2018022100047Apu · odorDURING DECENT AN OIL ODOR APPEARED IN COCKPIT AND CABIN. SAME SMELL AS ON GROUND. EN ROUTE AT TOP OF FLT. THE ODOR INCREASED ALL THE WAY UNTIL LANDING. REMOVED AND REPLACED THE APU IAW 4901-9401. OPS AND LEAK CHECKED GOOD. RAN PACKS FOR 1 HOUR. NO ODOR NFeb 18, 2018 · N370HA · Airbus A330243SDR WX0A201802133304Apu · odorODOR IN THE CABIN. R & R THE APU.Feb 11, 2018 · N307NV · Airbus A319112SDR AALA201802129051Sensor · leakingFLIGHT ATTENDANTS REPORT ELECTRICAL/DIRTY SOCK SMELL ON DESCENT. APU OFF SMELL IN FORWARD GALLEY AND 3 L/R POSITIONS. THE AIRCRAFT WAS GROUNDED. APU OIL TEMPERATURE SENSOR REPLACED IAW AMM 49-94-15. NO ODOR NOTED AFTER APU AND ENGINE RUN.Feb 9, 2018 · N553UW · Airbus A321231SDR AALA201802139010Reheater · contaminatedODOR IN REAR OF THE CABIN DURING DESCENT, AND AT THE GATE WITH APU RUNNING. AIRCRAFT WAS GROUNDED. ACCOMPLISHED J/C 26L00021001, 26L00021002, AND 26L00021004. FOUND AN INTERNAL OIL LEAK IN THE APU, CHANGED THE APU IAW MIC 3200612. ALL PACK COMPONENTS CHANGEFeb 8, 2018 · N102UW · Airbus A320214SDR AALA201802139009Condenser · contaminatedODOR IN REAR OF THE CABIN DURING DESCENT, AND AT THE GATE WITH APU RUNNING. AIRCRAFT WAS GROUNDED. ACCOMPLISHED J/C 26L00021001, 26L00021002, AND 26L00021004. FOUND AN INTERNAL OIL LEAK IN THE APU, CHANGED THE APU IAW MIC 3200612. ALL PACK COMPONENTS CHANGEFeb 8, 2018 · N102UW · Airbus A320214SDR UIEA2018013000153Warning Message · false activationEICAS MESSAGE FOR THE LEFT ENGINE EEC MODE. RAN THE LEFT ENGINE, PERFORMED FIM 73-21 FAULT TREE 874, NO MESSAGE. COMPLIED WITH A BITE PROCEDURE ON THE LEFT PIMU, NO FAULTS, SYSTEM TESTED NORMAL.Jan 30, 2018 · N1399A · Boeing 767306SDR UIEA2018013000152Warning Message · false activationAFTER LANDING, WHEN STARTING APU, AN EICAS MESSAGE FOR THE APU BATTERY DISCHARGED. APPLIED ELECTRICAL POWER TO ACFT IAW AMM 24-22-00 1201. NO FAULTS PRESENT, NO STATUS MESSAGE CHARGING SYSTEM TESTED NORMAL.Jan 30, 2018 · N1399A · Boeing 767306SDR ASAA2018012423283Intake Duct · contaminatedALL THREE FLIGHT ATTENDENTS REPORTED AN ODD ODOR DURING PUSHBACK. DIRTY SOCK OR OIL ODOR. ACFT GROUNDED. TROUBLESHOT IAW TSM 49-00-81-810-874-A. FOUND EXCESSIVE GREASE CAKED WITHIN INTAKE SCOOP ON THE RT APU DOOR INTAKE DUCT. NO OTHER OIL PRESENT. PERFORJan 24, 2018 · N521VA · Airbus A319112SDR CALA2018011900220Inlet · damagedSMOKE IN AFT CABIN. ELETRICAL ODOR. APU INJESTED PHENOLIC PIECE OF INLET DIVERTER DUCT CAUSING SMOKE AND ODOR IN CABIN. BORESCOPE COMPLETED WITHOUT SIGNS OF DAMAGE. BOTH CABIN RECIRCULATION FILTERS CHANGED.Jan 19, 2018 · N404UA · Airbus A320232SDR AALA201801089017Apu · odorDURING CLIMB OUT, PASSING 5000 FT, FLIGHT ATTENDANTS REPORTED VERY STRONG ODOR FROM BACK OF CABIN. NO APU USED ON GROUND. FUMES WENT AWAY AFTER THE NR 2 PACK WAS TURNED OFF. THE NR 2 PACK REMAINED OFF FOR THE DURATION OF FLIGHT. AIRCRAFT WAS GROUNDED. Jan 7, 2018 · N535UW · Airbus A321231SDR ASAA2018010723119Apu · odorOIL ODOR IN ALL OF THE CABIN. ACFT GROUNDED. FOUND EVIDENCE OF DE-ICING FLUID INGESTION INTO AVIONIC VENT FILTER AND FAN BLOWER E/E VENT, COMPLIED WITH TSM 05-50-00-810-831-A, REPLACED THE AVIONICS VENT FILTER IAW AMM 21-21-41, REPLACED THE AIR CONDITIONINJan 7, 2018 · N521VA · Airbus A319112SDR UIEA2018010800038Apu · unknownAPU INOPERATIVE. PERFORMED AN APU OPS TEST IAW AMM 49-11-00, OPS TESTED OK.Jan 5, 2018 · N1709A · Boeing 767375SDR DXTA2018010500441Apu · contaminatedUPON LANDING SMOKE FILLED THE CABIN AND THE COCKPIT. MAINTENANCE RECEIVED 2 FAULT CODES: 142 & 144. INSPECTED APU FOUND EVIDENCE OF DE-ICING FLUID IN INLET, FLUSHED OUT WITH CLEAN COLD WATER. PERFORMED GROUNDS RUNS ON BOTH ENGINES AND APU. NO MORE SMOKE IN CAJan 4, 2018 · N524QS · Cessna 680CESDR UIEA2018010300005Apu · faultedAPU FAULT WHILE STARTING ON TAXI IN . TWO ATTEMPTS, ON SECOND ATTEMPT NOTICED AN RPM OF 22.1 AND 770 EGT BEFORE SHUTDOWN BY FAULT. FOUND OIL QTY LOW. SERVICED IAW AMM 12-13-04, NO LEAKS NOTED. APU STARTED FIRST ATTEMPT. PERFORMED A BITE CHECK IAW FIM 49-Jan 2, 2018 · N1361A · Boeing 76731BSDR UIEA2018010200004Apu · failedAPU PRESSURE LOW. REPLACED APU CONTROL UNIT IAW AMM 49-61-05, BITE TEST PASSED.Jan 1, 2018 · N649GT · Boeing 767375SDR UIEA2017122802441Warning Light · false activationAPU FAULT DURING START. APU STARTED ON FIRST ATTEMPT, PERFORMED APU BITE IAW FIM 49-11-00, NO FAULTS NOTED , APU OPS CHECK GOOD I.A.W AMM 49-11-00.Dec 27, 2017 · N1361A · Boeing 76731BSDR UIEA2017122302428Charger · malfunctionedAPU BLEED PRESSURE SURGED. REMOVED AND REPLACED APU BATTERY CHARGER IAW FIM 49-11, FAULT TREE IAW AMM 24-31-04. OPS CHECKED GOOD.Dec 22, 2017 · N1321A · Boeing 767306SDR DXTA2017121500001Apu · smokeSOURCE - OIR REPORT: ON TAKEOFF ROLL, SMOKE IN COCKPIT, ABORTED TAKEOFF AT UNKNOWN SPEED. CLEARED IT OUT. ANTI ICE FLUID IN API INTAKE IS ASSUMED. TOOK OFF W ENGINE PROVIDING AIR AND PRESSURIZATION WITH NO ANOMALIES. NO FURTHER ISSUES. (CREW NEVER CONTACTEDec 13, 2017 · N225QS · Cndair CL6002B16SDR GTIA2017120902279Apu · leakingSMELL AT THE CABIN -DIRTY SOCKS SMELL- AT FIRST DURING TAXI POT AND YET AGAIN DURING DESCEND-SMELL DISPITED WIHT BLEED 2/PACK 2 OFF.. ACCOMPLISHED DECONTAMIANTION OF THE ENVIROMENTAL CONTROL SYSTEM WIHT ENGINE AS PER A.M.M 21-00-00-615-003-A/21-00-00-615-004A Dec 9, 2017 · N602NK · Airbus A320232SDR UIEA2017113002335Actuator · malfunctionedDURING ENG START DUCT PRESS DROPPED BELOW 10PSI AND N2 ROTATION STAGNATED AT 14.9%. REMOVED AND REPLACED IGV ACTUATOR I.A.W AMM 49-52-02 OPS CHECK C/W , APU OPERATES NORMAL.Nov 30, 2017 · N1049A · Boeing 76736NSDR DXTA2017112700001Apu · odorAFTER LEVELING OFF AT FL410, BEGAN TO SMELL AN ODOR. AFTER CHECKING THE SUPPLY TEMPERATURE AND THE OVEN CABINET AND FINDING NOTHING OUT OF THE ORDINARY, SMOKE FILLED THE COCKPIT AND CABIN. THE SMOKE WAS HEAVIER IN THE COCKPIT. RAN THE APPROPRIATE EMERGENCY PRNov 26, 2017 · N399QS · Cessna 680SOVSDR AALA201711219020Cooling Fan · odorODOR DETECTED IN INTERIOR OF AIRCRAFT. ACCOMPLISHED JOB CARDS 26L00021001 AND 26L00021002. ODOR APPEARS TO BE COMING FROM AUXILARY POWER UNIT. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED APU OIL COOLING FAN IAW AMM 49-52-51 AND ACCOMPLISHED APU WASH IAW AMNov 20, 2017 · N746UW · Airbus A319112SDR HNAA2017112100379Contactor · inoperativeAPU WOULD NOT SHUT OFF. SUSPECTED WELDED APU CONTACTOR. CREW NOTICED EXCESSIVE SMOKE FROM APU AND PULLED THE APU FIRE BOTTLE. R & R THE APU GENERATOR IAW CARD 24-30-02. R & R APU START CONTACTOR IAW STANDARD PRACTICES AND APU GCU IAW AMM 24-49-03 AS PRECAUNov 19, 2017 · N333EN · Dhav DHC8311SDR FDEA201711183272Apu · smokeAPU SMOKE. APU SHUTDOWN (AUTO). OBSERVED SMOKE FROM APU. DEPLOYED FIRE AGENT TO APU.Nov 18, 2017 · N10060 · Doug MD1010FSDR ASAA2017111322563Warning Light · illuminatedBLUE APU MAINT LIGHT ILLUMINATED. WHEN STARTING APU AFTER LANDING THE APU SEEMS TO OPERATE NORMALLY. ACFT GROUNDED. COMPLIED WITH FIM 49-90, TASK 804. FAULT CLEARED, OK TO CONTINUE SERVICE.Nov 13, 2017 · N597AS · Boeing 737890SDR ASAA2017110622462Unknown · unknownAPU FAULT LIGHT ILLUMINATED DURING ATTEMPTED TO START AT THE GATE. QRH PROCEDURE ACCOMPLISHED. LIGHT WENT OUT. SECOND START ATTEMPT WAS SUCCESSFUL. GROUNDED. OPS CHECKED APU, APU STARTED 1ST TRY, OPS NORMAL, NO HISTORY.Nov 6, 2017 · N587AS · Boeing 737890SDR REXA2017110501153Actuator · failedAPU FIRE MASTER WARNING MESSAGE RECIEVED ON GROUND. APU AUTO SHUTDOWN. BOTTLES DID NOT DISCHARGE. TURNED OFF MASTER BATTERY. PERFORMED DOOR RIGGING PROCEDURE IAW AMM 49-14-19. DOOR WILL NOT CLOSE AFTER OPENING. REMOVED AND REPLACED THE APU INLET DOOR ACTUANov 5, 2017 · N297PQ · Cndair CL6002D24SDR ASAA2017110522436Warning Light · false activationON APU START MAINT LIGHT ILLUMINATED. ACFT GROUNDED. CHECKED APU OIL LEVEL, LEVEL FULL. STARTED APU, NO LIGHT ON. ACCOMPLISHED FIM 49-90, 804, STEP E 92 0B. APU SOFTWARE READS 491A-TUS-A51-000. MAINT LIGHT FOR LOG IS SET TO ON. ACCOMPLISHED IAW AMM 49-61-00Nov 5, 2017 · N474AS · Boeing 737990ERSDR UIEA2017110602177Fault Light · false activationAPU FAULT AFTER START. PERFORMED APU ECU BITE IAW AMM 49-61-05. NO FAULTS NOTED PERFORMED OPERATIONAL CHECK IAW AMM 49-11-00, OPS CHECKED GOOD.Nov 4, 2017 · N1049A · Boeing 76736NSDR UIEA2017110602176Warning Light · false activationDURING PREDEPARTURE, APU FAULTED AFTER RUNNING FOR 22 MINUTES. PACK OFF, APU BLEED VALVE OPEN. PERFORMED A BITE TEST, NO FAULTS FOUND IAW 49-05-00.Nov 4, 2017 · N1049A · Boeing 76736NSDR ASAA2017103022366Warning Light · false activationDURING TAXI APU AC BLUE MAINT LIGHT ILLUMINATED. ACFT GROUNDED. WITH APU SHUTDOWN, CHECKED OIL QUANTITY. FOUND APU OIL QUANTITY TO BE FULL. BLUE MAINT LIGHT OUT. STARTED APU ON GROUND, NORMAL START, BLUE MAINT LIGHT REMAINS OUT AND ALL INDICATIONS NORMAL.Oct 30, 2017 · N487AS · Boeing 737990ERSDR HNAA2017102600359Apu · odorHOT ELECTRICAL ODOR DURING FLIGHT. RAN ENGINES WITH BLEED AIR ON, NO ABNORMAL FUMES OR ODOR NOTICED, IAW PDT RUN MANUAL. RAN APU WITH BLEED ON, MODERATE FUEL ODOR NOTED.Oct 25, 2017 · N331EN · Dhav DHC8311SDR HNAA2017102600358Apu · smokeAPU REMAINED IN START MODE, SMOKE IN APU AREA, MX INSPECTED FOR HIDDEN DAMAGE.Oct 25, 2017 · N331EN · Dhav DHC8311SDR ASAA2017102122275Warning Light · false activationAPU FAULT LIGHT ILLUMINATED FOR 1 MINUTE, AFTER TURNING IT OFF AFTER ENGINE START. ACFT GROUNDED. ACCOMPLISHED APU BITE CHECK IAW FIM 49-60, 801. NO CURRENT FAULTS LOGGED. FAULT 49-61223. FOUND TO BE INTERMITTENT. APU GROUND VERIFICATION CHECKED NORMAL.Oct 21, 2017 · N478AS · Boeing 737990ERSDR AALA201710169023Apu · odorFLIGHT CREW AND CABIN SMELLED AN ACRID ODOR FROM TOP OF DECENT TO 10000 FT. ODOR CLEARED. REMOVED AND REPLACED APU IAW AMM.Oct 15, 2017 · N658AW · Airbus A320232SDR VQI2018F00020Unknown · malfunctionedREPORTED THE FOLLOWING DEFECT ON THE GROUND IN SFO. APU DID NOT START ON FIRST TWO ATTEMPTS. CHECKED APU OPERATION IAW AMM 491000, APU CHECKED OK. NO FURTHER ISSUES REPORTED ON SUBSEQUENT FLIGHTS. ACCORDING TO THE OPERATORS RECORDS, ALL AIRWORTHINESS DIRECOct 11, 2017 · N282VA · Airbus A320214SDR A6WA2017100945345Control Panel · arcedSPARKS COMING FROM THE APU START & STOP PANEL ON OVERHEAD. REMOVED ALL POWER FROM AIRCRAFT, NO ARCING AT THIS TIME. NO FUMES OR ODORS NOTED. APU WAS RUNNING AND APU GENERATOR WAS ON. R & R THE APU POWER & FUEL AND START/STOP SWITCHES IAW ESPM 24-00. OPS CHOct 7, 2017 · N471ZW · Cndair CL6002B19SDR IPXA2017100122175Hour Meter · inoperativePU HOUR METER INOPERATIVE. REPLACED THE HOUR METER IAW AMM 49-72-01-404-030.Sep 30, 2017 · N305UP · Boeing 76734AFSDR IPXA2017092522026Tru · failedAPU TRU START CIRCUIT BREAKER TRIPPED ON P32 PANEL. REPLACED APU TRU IAW AMM 24-32-04-4. OPS CHECKED GOOD.Sep 24, 2017 · N319UP · Boeing 76734AFSDR UIEA2017092401807Valve · failedAPU SHUTDOWN WHEN PACK SELECTED. REMOVED AND REPLACED APU SURGE VALVE IAW AMM 49-53-01. OPS CHECKED NORMAL.Sep 24, 2017 · N1321A · Boeing 767306SDR UIEA2017092001755Warning Light · false activationAPU AUTO SHUTDOWN, GENERATOR FILTER SHOWS ON BITE. PERFORMED BITE TEST IAW FIM 49-11-A26, EGT NR 2 FAULT SHOWS. REPAIRED EGT 2 WIRE HARNESS IAW SWPM 20-10-115 AND WDM 49-14-11, SYSTEM OPS CHECKED OK.Sep 19, 2017 · N1217A · Boeing 767375SDR P5CA2017091400329Apu · malfunctionedON ENGINE SHUTDOWN, APU FAILED. GPU WOULDN`T HANDLE A/C ELECTRICAL LOAD. ACCOMPLISHED APU ECU BITE CHECK, NO FAULTS FOUND, RAN APU UNDER LOAD AND CHECKED ECU, NO FAULTS FOUND. OPS CHECKED GOOD IAW FIM 49-11 F/T 958</DIV>)Sep 14, 2017 · N642GT · Boeing 7673Y0SDR UIEA2017082801561Actuator · failedAPU FAILED ON START FIRST ATTEMPT, APU DOOR STATUS MESSAGE. REMOVED AND REPLACED THE AIR INTAKE DOOR ACTUATOR IAW AMM 49-15-06. OPS CHECKED GOOD. NO DEFECTS NOTED.Aug 27, 2017 · N641GT · Boeing 76738ESDR ASAA2017082521725Apu · malfunctionedAPU FAULT LIGHT ILLUMINATED DURING APU START ON GROUND. ACFT GROUNDED. PERFORMED APU BITE TEST IAW FIM 49-60 TASK 801, AND SHOWS APU FAULT 49-41011. NO FLAME SHUTDOWN AND CURRENT STATUS MAINT MESSAGE 49-31175, FCU RESOLVER CIRCUIT SHOWS BAD. STARTED APU MUAug 25, 2017 · N570AS · Boeing 737890SDR DXTA201708210001Apu · odorSTRONG SMOKE AND SOCK ODOR DURING DESCENT. REMOVED & REPLACED THE APU IAW AMM 49-00-00. OPS & LEAK CHECKED GOOD. REMOVED & REPLACED BOTH WATER SEPARATOR SOCKS IAW AMM 21-00-00. LEAK CHECKED GOOD.Aug 18, 2017 · N946QS · Cessna 750SDR UIEA2017082101511Light · looseAPU FAIL LIGHT MODULE INOPERATIVE. REMOVED APU LIGHT LEN CAP FOR INSPECTION CONDITIONS AND PROPER CONTACT, OPS CHECKED NORMAL IAW AMM 33-16-02.Aug 17, 2017 · N1217A · Boeing 767375SDR CALA2017081102604Control Switch · burnedSTRONG ELECTRICAL ACRID ODOR THROUGHOUT CABIN. REPLACED A BURNED APU CONTROL SWITCH IAW WDM 24-27-41. OPS CHECKED GOOD.Aug 11, 2017 · N595UA · Boeing 757222
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