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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 2008UALA06075Apu · defectiveAPU INOP. FOUND APU OIL TANK EMPTY. SERVICED TO FULL. STARTED APU AND FOUND HEAVY SMOKE COMING OUT OF TAIL PIPE. AFTER APU SHUTDOWN FOUND HUGE QUANTITY OF OIL IN APU EXHAUST SECTION. REPLACED APU. OPS AND LEAK CHECK GOOD.
SDR 2008UALA06091Apu · faultyAPU HAS LOW BLEED AND HIGH EGT. REPLACED APU. NO LEAKS NOTED, NO FAULTS NOTED. OPS CHECK NORMAL.SDR 2008UALA06048Starter · malfunctionedAPU WILL NOT START. APU CRANKS BUT NO RPM INDICATION. CREW COMMENTS: TWO START ATTEMPTS FAULT EICAS ONLY 10 PERCENT RPM ON SECOND. REPLACED APU STARTER. ACCOMPLISHED 2 APU STARTS. OPS OKAY.
SDR REX2008F00052Apu · failedON TAXI OUT, APU FAILED WHICH RESULTED IN SMOKE IN THE CABIN. FLIGHT CREW DECLARED AN EMERGENCY AND CALLED. NO EVIDENCE OF FIRE WAS FOUND AND THE SMOKE CLEARED. CFR CLEARED AIRCRAFT TO TAXI BACK TO THE GATE. MAINT DEFERRED THE APU AND THE AIRCRAFT WAS RELESDR 2008UALA05968Sensor · missingAPU FAILED TO START. FAULT LIGHT ILLUM AND EICAS MSG. APU FAULT DISPLAYED. SECOND ATTEMPT INDICATES (SLOW ACCEL, HUNG START). FOUND MISSING HARDWARE SENSOR ON LT SIDE OF APU PLENNUM. NONE STOCKED AT IAD. UNABLE TO DETERMINE IF THE LISTED PARTS WILL COMPLSDR A6WA200840594Apu · odorRT PAC HAS OIL SMELL WHILE ON APU AIR. OILY SMELL DISSIPATES WHILE ON 10TH STAGE BLEED AIR. REMOVED AND REPLACED APU IAW AMM 49-10-00, OPS CHECK GOOD. (K)SDR 2008UALA05800Engine · failedAPU EMITS SMOKE FROM TAIL PIPE. OIL QTY RAPIDLY DROPPED TO ZERO. TURBINE BLADE TIP DAMAGE ON OLD APU. REPLACED APU. OPS NORMAL.SDR 2008UALA05798Engine · sparksSEVERAL LARGE SPARKS SHOOTING OUT OF THE APU TAIL PIPE. FOUND INTERNAL TURBINE FAILURE. REPLACED APUSDR UALA2008111305783Seal · damagedAPU OIL CONSUMPTION ABOVE LIMIT. APU IS INADEQUATE. FOUND GEARBOX, DRIVEN COMPRESSOR LEAKING AT GEARBOX TO COMPRESSOR MATING SURFACE. SUSPECT SEAL NEEDS REPLACEMENT. NO OTHER LEAKS NOTED. REPLACED APU.SDR 2008UALA05783Engine · oil consumptionAPU OIL CONSUMPTION ABOVE LIMIT.
SDR 2008UALA05682Contactor · damagedAPU NO ROTATION NO EGT NO START ABOVE FL300 AND NO START AT FL200 EITHER. REPLACED APU CRANK CONTACTOR AND APU ECU.SDR DXTA200809/073264Apu · smokeFLIGHTDECK FILLED UP WITH SMOKE (ON GROUND)THIS HAPPENED WHILE ENGINES WERE NOT RUNNING, APU WAS RUNNING WITH APU BLEED AIR ON. SMOKE CAME FROM L AND R WEMAC. REMOVED AND INSTALLED APU IAW MM 49-10-00. PERFORMED OPS CHECK OF APU ALL CHECK GOOD IAW MM 49-10-SDR 2008UALA05636Apu · smokeGROUND CREW REPORTED SMOKE FROM APU EXHAUST AREA. FIRE DEPARTMENT RESPONDED. OPENED APU COMPARTMENT. NO OIL ON THE EXTERIOR. APU EXHAUST IS OK. PER FIRE DEPARTMENT NO FIRE AGENT REQUIRED, SMOKE ONLY. CLOSED APU COMPARTMENT. NO OIL IN SITE GLASS. REPLACED APSDR AALA200802266Apu · leakingCREW REPORTED SMOKE IN CABIN. RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. FOUND AUXILIARY POWER UNIT (APU) OIL LEAKAGE WITH POSITIVE INDICATIONS OF INGESTION INTO APU INTAKE. REPLACED APU AND PERFORMED PACK BURN. SYS GROUND CHECKED NORMAL OPERATION. (K)SDR DXT2008F00004Apu · odorDURING THE TAXI WE STARTED THE APU, ONCE THE APU BLEED WAS TURNED ON SMELLED A SLIGHT OILY SCENT. (K)SDR DL764081131Turbine · failedAPU FAULT ON FIRST TWO GROUND START ATTEMPTS. REMOVED AND REPLACED APU PER M/M. APU HOURS 10420.SDR DL76G091408Apu · unserviceableREPLACED APU DUE TO -NO START- HISTORY. LOADED APU INFLT START INTO FLT PLAN S/N INSTALLED P2563.SDR 2008UALA05479Controller · faultyAPU WILL NOT START. HANGS BETWEEN 0-10% RPM. SHUTS DOWN WITH APU FAULT LIGHT ON. REPLACED APU CONTROLLER, APU BATTERY, BATTERY CHARGER, AND APU STARTER. OPS CHECK OK.SDR UALA2008111305443Apu · malfunctionedAPU WILL NOT START. FADEC SHOWED NO FAULTS. STARTED AND RAN APU WITH AIR AND ELECTRICAL LOADS AT GATE. COULD NOT REPLICATE FAULT. OK FOR SERVICE.SDR DL764081110Engine · inoperativeAPU NO START. REMOVED AND REPLACED STARTER NO HELP 320051. REMOVED AND REPLACED APU BATTERY NO HELP 320051. RMOVED AND REPLACED APU ASSY PER AMM. OPS AND LEAK CKS GOOD. SWAPPED OVER IGV ACT ASSY S/A 2022 AND STARTER S/N 274 PER AMM. CKS GOOD.SDR AALA200802170Apu · malfunctionedDFW INFLIGHT T351/22AUG. AFTER TAKE OFF FLIGHT ATTENDANTS REPORTED BLUE HAZE COMING FROM AIR CONDITIONING. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED AUXILIARY POWER UNIT (APU) DUE TO OIL SATURATING APU COMPARTMENT. SYSTEM GROUND CHECKED NORMAL SDR 2008UALA04363Seal · leakingGENERATOR INDICATION AND APU EICAS MESSAGE. FLIGHT DIVERTED. FOUND FRONT LOAD COMPRESSOR SEAL LEAKING. REPLACED APU ASSY.
SDR C2XA08IA193Apu · smokeIAH - FLIGHT 2749 - DURING PRE-FLIGHT THE CREW REPORTED SMOKE IN THE COCKPIT WHEN THE APU WAS STARTED, AND THE CREW SHUT DOWN THE APU. MAINTENANCE INSPECTED ACFT, OPERATIONALLY CHECKED THE APU WITH NO DEFECTS NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERSDR C2XA08CL092Apu · faultyCLE FLIGHT 2630 - THE CREW REPORTED A LAV SMOKE WARNING MESSAGE ON THE EICAS AFTER SELECTING COOLING PACKS DURING TAXI. THE ACFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE APU. OPERATIONAL CHECKS WERE GOOD. (S)SDR ASAA0853270Apu · making metalDELTA P INDICATOR FOUND EXTENDED MAGNETIC CHIP DETECTOR REMOVED AND FOUND TO BE COVERED IN (SILVER COVERED) METAL PARTICLES. APU UNSERVICEABLE IAW AMM 49-91-81-200-801. PARA H ITEM 1. APU REPLACED WITH SERVICEABLE UNIT IAW TC 78349010.SDR USA2008F00018Apu · malfunctionedMCO FLT 816 EN ROUTE CUN TO CLT. CREW RECEIVED NUMEROUS LAVATORY SMOKE DETECTOR WARNINGS, AND AN ODOR OF SMOKE IN BOTH THE COCKPIT AND CABIN. ALSO RECEIVED AN APU OVERHEAT MESSAGE. THE FLIGHT DIVERTED TO MCO AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCESDR 2008UALA03846Bleed Valve · faultedAPU AUTO SHUTDOWN DURING TAXI OUT. APU AUTO SHUTDOWN DURING TAXI OUT. CONFIRMED APU SURGE BLEED CONTROL VALVE MALFUNCTIONING. REPLACED BLEED VALVE. OPS CHECK OKAY.SDR DXTA200803161Apu · smokeSTARTED APU ON GROUND, GOT SMOKE IN CABIN. REMOVED AND REPLACED APU IAW MM 49-10-00. OPS AND LEAK CHECKS GOOD ON APU GROUND RUN.SDR 2011F00136Apu · misoverhauledNEWLY O/H APU WAS REMOVED AFTER 155 FHRS DUE TO ABNORMAL NOISE & SEVERE VIBRATION. APU WAS REPAIRED FROM APS AND INSTALLED ON ANOTHER ACFT AND AGAIN IT WAS REMOVED AFTER 178 FHRS DUE TO ABNORMAL NOISE, HEAVY SURGE & INTERNAL OIL LEAK. AGAIN IT WAS REPAIRED ASDR DL76L080785Apu · shutdownAPU SHUTDOWN ON PUSHBACK. BITE CKD ECU, SHOWS REVERSE FLOW. CLEARED AND RESTARTED APU. OPS CKS GOOD.SDR ASAA0852908Apu · leakingDURING TROUBLESHOOTING FOR SOURCES OF CABIN ODOR FOUND APU LOAD COMPRESSOR WITNESS HOLE TO HAVE OIL. OIL WAS PRESENT ABOVE CHECK VALVE ALSO. REPLACED APU. OP & LEAK CHECKS GOOD.SDR AALA200801182Apu · leakingJFK INFLIGHT T2275/02MAY LGA TO BNA - CREW REPORTED SMOKE IN CABIN AND COCKPIT. DIVERTED TO JFK AND LANDED WITHOUT INCIDENT. AIRCRAFT TAKEN OUT OF SERVICE FOR EVALUATION AND REPAIR. FOUND AUXILLIARY POWER UNIT (APU) LEAKING OIL. REPLACED APU ON 04 MAY AT SDR SWIA200819573Apu · odorFUEL SMELL IN THE CABIN WHILE APU IS RUNNING. REPLACED APU IAW EMB 120 MM 49-00-01. OPS CHECK GOOD, P/N 3800376-2, S/N OFF P-322.
SDR UALA2008111302275Apu · faultyAPU FAULT CAUTION LT AND EICAS MSG. TEMP SPIKED TO +600 ON SHUTDOWN IN FLIGHT. REPLACED APU.SDR 2008UALA02275Apu · malfunctionedAPU FAULT CAUTION LT AND EICAS MSG. TEMP SPIKED TO +600 ON SHUTDOWN IN FLIGHT.SDR AALA200800996Apu · leakingLAX INFLIGHT T285/17APR - CREW REPORTED STRONG ELECTRICAL SMELL IN AFT CABIN FOLLOWED BY SMOKE ALARM SOUNDING IN AFT LAVATORY. RETURNED TO LAX AND LANDED WITHOUT INCIDENT. FOUND OIL IN APU AIR DISCHARGE DUCT. REPLACED APU DUE TO OIL LEAK. ACCOMPLISHED CONTSDR AALA200800946Apu · contaminatedORD INFLIGHT T1861/13APR - CREW REPORTED SMELL OF BURNING DEICING FLUID IN AIR CONDITION SYSTEM. CABIN FILLED WITH SMOKE. CREW SHUT DOWN RIGHT PACK. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. FOUND APU HAD INGESTED FLUID. REPLACED AUXILIARY POWER UNIT SDR GTIA0800053Apu · fireVISIBLE FLAMES FROM APU. SHUT DOWN APU/DISCHARGED FIRE BOTTLE. INSPECTED APU INTAKE, EXHAUST, AND COMPARTMENT NO PHYSICAL DAMAGE NOTED. APU DEACTIVATED AND DEFERRED IAW MEL49-10-01. APU REMOVED AND REPLACED, DMI CLEARED.SDR ASAA0852809Apu · shutdownAPU QUIT AT GATE. FOUND METAL SILVER PARTICLES ON MAGNETIC DRAIN PLUG. REPLACED APU.SDR HALA0800483Apu · shutdownETOPS SIGNIFICANT SYSTEM, APU AUTO SHUTDOWN AT GATE FAULT LIGHT ILLUMINATED. BITE CHECKED APU ECU. NO DEFECTS NOTED ON ECU. "NORM SHUTDOWN SIG" SHOWN ON LAST ROW. RAN APU, NO DEFECTS NOTED, ON START UP. OK FOR SVC.SDR C2XA08IA102Starter Gen · inoperativeFLT 2632, THE CREW REPORTED THAT THE APU FAILED ACCOMPANIED BY A BURNING ODOR. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT AND PLACED THE APU ON MEL 49-00-00 CAT C. MAINTENANCE REMOVED AND REPLACED THE APU STARTER GENSDR HALA0800448Apu · malfunctionedETOPS SIGNIFICANT SYSTEM, APU FAILED TO START ON 3 ATTEMPTS AFTER LANDING. BITE CHECK ACCOMPLISHED PER FIM 49-11-00 FIG 103. STARTED 2 TIMES SUCCESSFULLY. NO FAULT NOTED. OK FOR SVC.SDR DXTA20082963Apu · odorSTRONG ODOR COMING FROM AIR CONDITION AND IN CABIN OF AIRCRAFT. REMOVED DEFECTIVE APU AND INSTALLED A REPAIRED APU. PERFORMED AN OPERATIONAL AND LEAK CHECK. ALL CHECKS PASSED. ALL WORK ACCOMPLISHED IAW MM CHAPTER 49-10-00SDR 2008UALA01517Apu · unknownAPU WILL NOT START. AFTER EXTENSIVE TEST, REPLACED APU PER MM 49-11- 01 PG401.PERFORMED APU TEST PER JRH 2-6-15 AND PER UNIMATIC DISPLAY 2450 PERFORMANCE CHECK GOOD. VERIFICATION FLIGHT ACCOMPLISHED. APU STARTED NORMALLY. AC OK FOR SERVICE.SDR 2008UALA01469Switch · dirtyAPU FAILED TO START. FAULT LIGHT ILLUM AND EICAS MSG. APU FAULT DISPLAYED. ADDITIONAL START ATTEMPTS UNSUCCESSFUL. CLEANED LOW PRESSURE SWITCH, CHECKED OIL LEVEL, OK, APU STARTED 1ST ATTEMPT, NO REPEAT ISSUES.
SDR QXEA200800297Apu · leakingYYJ - FLIGHT 7400 - AFTER LANDING, THE FLIGHT ATTENDANT NOTICED A RAW FUEL SMELL IN THE AIRCRAFT. DURING TAXI AND SHUTDOWN THE SMELL INCREASED. MAINTENANCE RAN BOTH ENGINES FOR 10 MINUTES WITH THE BLEEDS ON AND NOTICED NO FUEL SMELLS. NOTICED LARGE AIR LEAKSDR DL76S080362Apu · malfunctionedSMOKE DETECTORS AT STATIONS 214-215-219 SOUNDED DUE TO LIGHT OIL MIST IN THE CABIN, ALL 3 MID LAVS. THIS HAPPENS ONLY ON THE GROUND WITH APU AIR AND NO ENGS RUNNING. FWD APU TO MCO AND PLACARD PER MEL 49-11-01A. REPLACED APU PER M/M. LEAK CKS GOOD. GENERASDR DL777080330Engine · making metalAPU AUTO SHUTDOWN REPLACED APU PER TRANSMITTAL 11T007.SDR AMTA200800211Relay · inoperativeAPU WILL NOT START. T/S AND FOUND BAD RELAY K10163, REMOVED AND REPLACED IAW SWPM 20-81-82, APU START AND OPS CHECK GOOD IAW MM 49-11-00. (K)SDR VNAA0803002Apu · malfunctionedCREW REPORTED THE APU FLAMED OUT AFTER ENGINE SHUTDOWN. GROUND CREW STATED SMOKE WAS COMING FROM THE RIGHT SIDE OF THE AIRCRAFT. MAINTENANCE INSPECTED AND FOUND SMOKE COMING FROM THE APU INTAKE DOOR, FUEL LEAKING FROM DRAIN ON TO THE AFT EQUIPMENT BAY. MAIN
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