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 GTIA030386Apu · leakingABOUT 2 MIN AFTER SELECTING AIRFOIL ANTI-ICE A BURNING ODOR ENTERED THE CABIN AND WAS DETECTABLE IN THE COCKPIT. SMELL WENT AWAY WHEN AIRFOIL ANTI-ICE WAS TURNED OFF. ODOR WAS APPARENT ALSO WHEN TAIL DE-ICE WAS SELECTED. REMOVED AND REPLACED APU. OPS AND LMay 30, 2003 · N808NK · Doug DC983SDR CALA0300266Apu · shutdownTHE APU AUTO SHUTDOWN ON TWO START ATTEMPTS AT FL 35. APU START WAS SUCCESSFUL AT FL 15. THE APU ASSEMBLY WAS REMOVED AND REPLACED IAW MM 49-11-01. LEAK AND OPERATIONAL CHECKS WERE GOOD.May 24, 2003 · N14120 · Boeing 757224SDR MALA030251Apu · shutdownDURING CLIMBOUT OF FLIGHT 3567, APU AUTOSHUTDOWN. APU AUTOSHUTDOWN DURING CLIMB THRU 24000 FT. NO RESTART ATTEMPTED. MAINTENANCE GROUND RAN 45 MINUTES, UNABLE TO DUPLICATE.Apr 28, 2003 · N526XJ · Bac AVRO146RJ85ASDR AMTA200300563Apu · malfunctionedAPU WOULD NOT START, 3 ATTEMPTS, RPM UP TO 15 PERCENT. PERFORMED APU BITE IAW MM 39-61-05. NO FAULTS DISPLAYED STARTED APU IAW MM 49-11-00. OPS CHECK NORMAL. (M)Apr 25, 2003 · N551TZ · Boeing 75733NSDR AMTA200300545Apu · malfunctionedAPU WOULD NOT START, 3 ATTEMPTS RPM GOT UP TO 14 PERCENT. PERFORMED APU BITE, NO DEFECTS NOTED IAW FIM 49-11-00-2. OPERATIONAL CHECK 3 TIMES NORMAL PER MM 49-11-00-802. OK FOR SERVICE. (M)Apr 22, 2003 · N551TZ · Boeing 75733NSDR A6WA200340053Apu · fireAFTER APU SHUTDOWN FIRE WAS NOTED IN THE INTAKE. AGENTS USED HALON/DRY CHEMICAL TO EXTINGUISH. REMOVED AND REPLACED THE APU, SUSPECT CAUSE AS EITHER THE LOAD CONTROL VALVE OR THE FUEL SHUTOFF VALVE. (M)Apr 13, 2003 · N434AW · Cndair CL6002B19SDR USAABB03057Packing · leakingEN ROUTE PHL-PHX, WITH THE LFT GENERATOR ON MEL AND APU OPERATING, THE CREW NOTED A DECREASE IN THE APU OIL FROM 'FULL' TO .'50' TO 'REFILL'. SHORTLY THEREAFTER THE APU PERFORMED AN AUTO SHUTDOWN. FLIGHT DIVERTED TO DEN AND LANDED WITHOUT FURTHER INCIDENT. Mar 22, 2003 · N633AU · Boeing 7572B7SDR MEX2003088Apu · failedMEX-ORD - AIRCRAFT RETURNED TO PLATFORM DUE TO AIRCRAFT POWER UNIT FAILED WITHOUT APPARENT CAUSE. PERFORMED BITE PROCEDURE IAW FIM 49-11-00. (M)Mar 21, 2003 · N703AM · Boeing 757200SDR C2XA03BT037Apu · seizedEWR FLT2578 CREW REPORTED DURING APU START APU FAILED INDICATION WAS INSTRUCTED I HAD A FIRE BLEW EXTINGUISHER BOTTLE. MX FOUND APU SIEZED INSPECTED AND PLACED ON MEL. #49-00-00. ACFT RELEASED FOR SERVICE. SDR REMAINS OPEN.Mar 13, 2003 · N13968 · Emb EMB145SDR C2XA03BT022Apu · odorEWR---CO2521, CREW REPORTED, "STRONG SMELL OF FUEL WHEN APU START IN FLIGHT". MAINTENANCE PERFORMED OPERATIONAL CHECK OF THE APU IAW EMB145 AMM #49-10-00. NO FAULTS NOTED. VISUALLY INSPECTED APU IAW EMB145 AMM #49-02-00. NO LEAKS NOTED. AIRCRAFT RETURNED TO SJan 28, 2003 · N29906 · Emb EMB145LRSDR C2XA03BT014Apu · odorEWR---CO2517, CREW REPORTED, "FUEL ODOR WHEN OPERATING AIRCONDITIONING PACKS WITH APU RUNNING." MAINTENANCE PERFORMED OPERATIONAL CHECK OF AIRCONDITIONING SYSTEM (WITH APU RUNNING)IAW EMB145 AMM #21-51-00. OPS.CHECKED GOOD. NO ABNORMAL ODORS NOTED. AIRCRAFT REJan 23, 2003 · N11544 · Emb EMB145LRSDR C2XA03BT013Apu · odorEWR---CO2679, CREW REPORTED, "WHEN STARTING APU THERE WAS A STRONG FUEL SMELL." MAINTENANCE REPOSITIONED AIRCRAFT FROM "TAILWIND" CONDITION. RAN APU. NO FAULTS OR SMELLS NOTED IAW EMB145 MM 49-00-00. AIRCRAFT RETURNED TO SERVCIE.Jan 23, 2003 · N29906 · Emb EMB145LRSDR DL777030085Charger · odorF/A AT 4R REPORTS SMOKE IN CABIN FROM AROUND SEATS 53 - 56. REPLACED APU BATTERY AND CHARGER. AC ALSO HAD STATUS MSG FOR BATTERY AND CHARGER. INSPECTED FOR DAMAGE, NONE FOUND.Jan 22, 2003 · N861DA · Boeing 777232SDR C2XA03CL020Packing · leakingFLIGHT#2848 THE CREW REPORTED A FUEL SMELL IN THE COCKPIT WITH THE APU BLEED ON.MAINTENANCE RELEASED THE AIRCRAFT I/A/W MEL 49-00-00.MAINTENANCE INSPECTED AND REPLACED THE PACKING AND TEFLON RETAINER ON THE OUTLET OF THE APU MAIN FUEL SOLENOID VALVE.OPERATIONAJan 20, 2003 · N27506 · Emb EMB135ERSDR COMA0360029Apu · unwantedFLIGHT 5807 STRONG FUEL SMELL WHEN APU STARTED.REPLACED APU.Jan 14, 2003 · N941CA · Cndair CL6002B19SDR ASOA02643Apu · shutdownFLT 4680 - DURING DESCENT INTO ATL AT APPROXIMATELY 13,000 FEET, THE AUXILIARY POWER UNIT SHUT ITSELF DOWN AUTOMATICALLY. THE CREW WAITED APPROXIMATELY TWO MINUTES AND RE-STARTED IT, AFTER WHICH THE ODOR OF FUEL OCCURRED IN THE COCKPIT AND CABIN. THE AIRCRAFDec 24, 2002 · N824AS · Cndair CL6002B19SDR C2XA02CL230Apu · overservicedYUL FLIGHT#4092 THE CREW REPORTED A LAV SMOKE WARNING ON THE EICAS AND A STRONG OIL SMELL IN THE CABIN.MAINTENANCE INSPECTED AIRCRAFT FOR SMOKE OR FIRE DAMAGE AND NONE WAS FOUND.THE APU WAS DETERMINED TO BE GIVING OFF THE OIL SMELL AND WAS PLACED ON MEL.MAINTENov 22, 2002 · N27523 · Emb EMB135LRSDR DL76S021306Actuator · bindingELECTRICAL ODOR IN AFT CABIN REPORTED BY FLIGHT ATTENDANTS AFTER PUSHBACK AND ENGINE START. FOUND APU ACTUATOR STUCK OPEN WITH ELECTRICAL ODOR. R & R APU DOOR ACTUATOR. OPS CHECK NORMAL.Nov 10, 2002 · N134DL · Boeing 767332SDR S2YA02043Control Unit · inoperativeDURING FLIGHT 2152 MKE-BWI THE APU GENERATOR OVER SPEED AND AUTO SHUT DOWN. THE CREW DIVERTED TO GRR SINCE THE RIGHT ENGINES DC GENERATOR WAS ALREADY ON MEL. MECHANIC WAS DISPATCHED AND THEY REPLACED THE APU DC POWER CONTROL UNIT. MECHANIC OPS CHECK THE APUNov 5, 2002 · N354SK · Dorner DO328300SDR DLM88021235Apu · contaminatedJUST AFTER TAKE OFF FLT ATTENDENTS REPORTS HEAVY SMOKE ODOR THROUGH OUT CABIN. CREW RETURNED TO PNS. FOUND APU INLET CONTAMINATED WITH HYD FLUID. AIRCRAFT MTC FERRIED TO ATL. ATL MTC COMPLIED WITH OPN 5089 DUCT BURNOUT AND CLEANED APU INLET. ATL MTC UNABLE Oct 24, 2002 · N902DL · Doug MD88SDR USAASB02182Apu · failedDURING CRUISE, ENROUTE, NR 2 GEN OFF BUS BLUE LIGHT ILLUMINATED. NR 2 BUS OFF YELLOW LIGHT DID NOT ILLUMINATE. NO POWER WAS BEING PRODUCED FROM NR 2 GENERATOR. CREW STARTED APU AND POWERED RIGHT BUS. APU LOW OIL QUANTITY LIGHT ILLUMINATED FOLLOWED BY LOW Sep 27, 2002 · N530AU · Boeing 7373B7SDR C2XA02BT036Apu · failedEWR/BTV---CO3526, ON TAXI, CREW REPORTED APU FAIL AND SMOKE ENTERED COCKPIT.....AIRCRAFT RETURNED TO GATE UNEVENTFULLY. MAINTENANCE INSPECTED AIRCRAFT/APU AND FOUND APU SHAFT TURBINE NOT TO SPIN. RAN BOTH ENGINES #1 AND #2. NO SMOKE IN COCKPIT. ALL SYSTEMS CHJul 23, 2002 · N16963 · Emb EMB145SDR 2002F00770Actuator · malfunctionedFLIGHT NUMBER 275. DURING CRUISE APU DOOR EICAS MESSAGE DISPLAYED IN FLIGHT. MAINTENANCE PERFORMED FIM 49-11-00, REMOVED AND REPLACED APU INLET DOOR ACTUATOR IN ACCORDANCE WITH M/M 49-15-06-4, OPERATIONAL CHECK NORMAL.Jul 11, 2002 · N528AT · Boeing 75723NSDR C2XA02CL103Valve · leakingCLE FLIGHT#3316 THE CREW REPORTED A STRONG FUEL SMELL IN THE AIRCRAFT WHEN THE APU IS STARTED.MAINTENANCE REPLACED THE APU AIRBLEED VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.Apr 21, 2002 · N28518 · Emb EMB135LRSDR 02FDEA00277Apu · fire02-86 DURING CLIMBOUT, FIRE IN APU. SHUTDOWN APU. REMOVED AND REPLACED APU, FIRE OVERHEAT DETECTOR, FIRE BOTTLE AND SQUIB ASSEMBLY.Apr 5, 2002 · N283FE · Boeing 727233SDR C2XA02IA081Apu · leakingDURING APPROACH FLIGHT 3649, THE CREW NOTED THAT THE APU FAILED ON APPROACH/STRONG FUEL ODOR IN CABIN AND COCKPIT. IAH- MAINTENANCE INSPECTED THE APU, AND, THE AIRCRAFT WAS RELEASED IAW MEL. IAH- MAINTENANCE REMOVED AND REPLACED THE APU, PERFORMED A OPERATIMar 25, 2002 · N17928 · Emb EMB145ERSDR DL764020363Duct · leakingFOUND 3 WAY DUCT CRACKED. REPLACED DUCT. LEAK CHECKS NORMAL.Mar 23, 2002 · N835MH · Boeing 767432ERSDR COMA0260181Apu · failedFLIGHT 5521 SMOKE IN COCKPIT AND CABIN.REPLACED THE APU.Mar 11, 2002 · N719CA · Cndair CL6002B19SDR DL757020243Charger · inoperativeVISIBLE SMOKE AND ELECTRIC SMELL IN CABIN AROUND ROW 42 ON GROUND, DURING BOARDING. FOUND APU BATTERY HOT WITH SOME SMELL COMING FROM COOLING VENTS. REPLACED APU BATTERY AND CHARGER PER MM CIRCULATED AIR THROUGH CABIN WITH PACKS. NO SMELL OR SMOKE.Mar 1, 2002 · N667DN · Boeing 757232SDR SIMA200205401Apu · failedEWR - FLT 4587 - DURING TAXI OUT, CREW NOTED SMOKE IN CABIN AFTER APU FAIL AND SHUT DOWN. CREW RETURNED TO GATE AND PASENGERS WERE DEPLANED NORMALLY. NO FURTHER INCIDENTS WERE REPORTED. MAINTENANCE WAS SENT FROM LGA. AIRCRAFT WAS INSPECTED AND APU WAS DEFEFeb 23, 2002 · N731BE · Emb EMB135LRSDR C2XA02CL035Check Valve · stickingCLE FLIGHT# 4065 THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN WHEN THE APU WAS STARTED.MAINTENANCE REPLACED THE APU START FUEL CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.Feb 6, 2002 · N16944 · Emb EMB145ERSDR C2XA02CL017Filter · leakingCLE FLIGHT# 3130 THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN AND COCKPIT AFTER APU START.MAINTENACE INSPECTED AND PLACED ON MEL.ON 1/22/01 MAINTENANCE REPLACED THE APU FUEL FILTER.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.Jan 21, 2002 · N14945 · Emb EMB145ERSDR C2XA02CL010Drain Line · looseCLE FLIGHT#3275 THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT AFTER APU START ON THE GROUND OR IN FLIGHT.MAINTENANCE INSPECTED AND RESECURED DRAIN LINE ON THE APU FUEL PUMP.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.Jan 16, 2002 · N16944 · Emb EMB145ERSDR DHL2002709002Electrical Sys · malfunctionedAPU ELECTRICAL TRIPPED OFF. A FEW SECONDS LATER, LEFT PACK TRIP OFF LIGHT ILLUMINATED AND THEN COCKPIT FILLED WITH SMOKE. RAN APU IAW MM 49-00 & JRH 8.1. APU & AIR OPS CHECKS GOOD. APU ELECTRICS WILL NOT HOLD A LOAD.Jan 15, 2002 · N709DH · Boeing 72782CSDR C2XA02CL006Check Valve · cokedCLE FLIGHT# 3199 THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT WHEN STARTING THE APU ON THE GROUND OR IN THE AIR.MAINTENANCE PLACED THE APU ON MEL.MAINTENANCE PERFORMED CLEANING OF THE APU COMBUSTOR DRAIN CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRJan 9, 2002 · N15980 · Emb EMB145LRSDR C2XA02CL003Valve · dirtyCLE FLIGHT#3024 THE CREW REPORTED THE APU STARTED ON THE GROUND WITH STRONG FUEL SMELL FILLING THE CABIN.MAINTENANCE PLACED THE APU ON MEL 49-00-00.MAINTENANCE REPLACED THE START FUEL CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVIJan 4, 2002 · N14945 · Emb EMB145ERSDR DLM88011536Oil Cap · damagedAFTER T/O SMOKE ALARM WENT OFF AT 6500 FT SMOKE WASN'T EVIDENT IN COCKPIT FUMES WERE EVIDENT IN CABIN - FOUND APU OIL CAP O-RING CUT - REPLACED SAME - CLEANED AREA - PERFORMED DUCT BURNOUTSep 16, 2001 · N956DL · Doug MD88SDR 2003FA0000218Battery · faultyAIRCRAFT WAS CONNECTED TO EXTERNAL AIRCRAFT POWER CART, AND POWERED UP. A LOUD POP WAS HEARD COMING FROM AFT EQUIPMENT BAY OF AIRCRAFT. DURING INVESTIGATION, ANOTHER POP WAS HEARD. ACCESSED APU BATTERY. FOUND IT TO BE DAMAGED AND SMOKING. FOUND SEVERAL CESep 5, 2001 · N226HD · Bombdr BD7001A10SDR C2XA01IA321Fuel Line · looseIAH - FLIGHT 3301, THE CREW REPORTED A STRONG FUEL SMELL IN THE CABIN. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE RESECURED THE FUEL LINE ON THE APU FUEL PUMP.THE APU WAS OPERATIONALLY CHECKED GOOD, AND THE AIRCRAFT WAS APPROVED FOR RETUNRN Aug 10, 2001 · N16731 · Emb EMB120ERSDR USAAF01047Battery Pack · inoperativeIND - THE RIGHT OVERWING EMERGENCY EXIT LIGHTS AND THE FLOOR EMERGENCY LIGHTS IN ROW 4-8 WERE FOUND INOPERATIVE. MAINTENANCE REPLACED BATTERY PACKS. OPS CHECKED OK. (M)Jul 15, 2001 · N867US · Fokker F28MK0100SDR USAAF01046Battery Pack · inoperativeCLT - THE AFT FLOOR EMERGENCY LIGHTS WERE FOUND INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK FOR THE FLOOR EMERGENCY LIGHTS. OPERATIONALLY CHECKED OK. (M)Jul 13, 2001 · N898US · Fokker F28MK0100SDR C2XA01IA283Apu · odorLIT - FLIGHT 4047, THE CREW REPORTED A STRONG FUEL ODOR AT FL350 WITH BOTH BLEEDS AND PACKS SELECTED. THE AIRCRAFT LANDED AT LIT WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT. PERFORMED OPERATIONAL TESTS WITH BOTH ENGINES RUNNING, AND NO DEFECTS Jun 26, 2001 · N13989 · Emb EMB145LRSDR C2XA01CL149Apu · failedBTV FLIGHT#4059 THE CREW REPORTED THE APU HAD A AUTO SHUT DOWN ON THE GROUND.MAINTENANCE REPLACED THE APU.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.Jun 22, 2001 · N13956 · Emb EMB145LRSDR USAAD01129Fuel Control · failedPIT-MIA - FLT 375 - DURING CRUISE, THE APU QUIT RUNNING. THE APU WAS RESTARTED AND RAN A FEW MINUTES BEFORE QUITTING AGAIN. AS THE LEFT ENGINE DRIVEN GENERATOR WAS ON MEL, THE AIRCRAFT NOW ONLY HAD ONE OPERATING GENERATOR. THE AIRCRAFT DIVERTED TO CLT AND LJun 20, 2001 · N828US · Doug DC981SDR M01053Apu · leakingTHE CREW FOUND SMOKE IN THE CABIN WITH THE PACKS ON. MAINTENANCE WAS CALLED AND FOUND OIL IN THE BLEED LINES FROM THE APU. THE APU WAS DEFERRED AND THE BLEED VALVE CLOSED. ON 07/01/2001 MAINTENANCE REMOVED AND REPLACED THE APU UNIT.Jun 20, 2001 · N828MJ · Emb EMB145LRSDR AALA20011177Apu · leakingBOS - FLT 1540 - EN ROUTE DFW-BOS - SHORTLY AFTER TAKEOFF CABIN FILLED WITH SMOKE. DE-PRESSURIZED AIRCRAFT. SMOKE DISSIPATED. LANDED BOS WITHOUT FURTHER INCIDENT. REPLACED APU. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)May 31, 2001 · N70404 · Doug DC982SDR AALA20011179Apu · leakingDFW - FLT 1794 - EN ROUTE MTY-DFW - SHORTLY AFTER NR 1 ENGINE START DETECTED OIL SMELL AND SMOKE IN COCKPIT AND CABIN. SHUTDOWN APU. SMOKE DISSIPATED. LANDED DFW WITHOUT FURTHER INCIDENT. REPLACED APU. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)May 28, 2001 · N1411G · Fokker F28MK0100SDR MASA01051Apu · inoperativeFLT 6072 - ON APPROACH TO PHX, THE CAPTAIN STARTED THE APU AND HAD AN OIL PRESSURE LOW CAUTION MSG IN FLIGHT, FOLLOWED BY A SMALL AMOUNT OF SMOKE IN COCKPIT. CREW SHUT DOWN THE APU AND LANDED WITHOUT INCIDENT. MAINTENANCE DEFERRED THE APU AND THE AIRCRAFT WAMay 18, 2001 · N17275 · Cndair CL6002B19SDR CA010531007Fuel Bowl · cracked(CAN) DURING THE TAXI IN THE AIRCRAFT LOST APPROXIMATELY 600 LBS OF FUEL. MAINTENANCE FOUND FUELLEAK FROM APU. UPON INSPECTION FOUND THAT THE FUEL WAS COMING FROM THE LOW PRESSURE FUEL FILTER BOWL CRACKED AT MOUNTING FLANGE. BOWL REPLACED AND AIRCRAFT RETURNEDMay 8, 2001 · Lkheed 1011385114SDR CA010406005Connector · damaged(CAN) THE AIRCRAFT WAS DEPARTING WHEN THE CREW EXPERIENCED AN APU FIRE INDICATION. THEY FOLLOWED PROCEDURES INCLUDING DISCHARGING THE EXTINGUISHER BOTTLE THEN RETURNED TO BASE. THE APU WAS INSPECTED BY MAINTENANCE AND THERE WAS NO INDICATION OF FIRE DAMAGE. THMar 24, 2001 · Boeing 737281
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