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 DALA2023082106816Unknown · unknownSHIP 3123 FOR APU ODOR, APU CONSIDERED INOP. CORRECTIVE ACTION: APU LEAK ISOLATION AND REPAIR APU PER AMDS W/C 4900-2001. (4927263)Aug 18, 2023 · N323NB · Airbus A319114SDR NACA2023081500001Unknown · unknownAPU FAULT LIGHT ON OVERHEAD PANEL WITH APU RUNNING. DEFERRED PER MEL 49-11-01A CAT CAug 15, 2023 · N321CM · Boeing 767323SDR ASAA2023081444620Unknown · unknownFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL360 584 CPH. GROUNDED - YES. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. REF ASA MEL49-1B LP 60643261.Aug 14, 2023 · N593AS · Boeing 737890SDR ASAA2023081344628Unknown · unknownPREVIOUS CREW NOTED SLIGHT SULFER SMELL AND MX WANTED IT NOTED IF IT REOCCURED. SHORTLY BEFORE TAKEOFF WE EXPERIENCED A SULFER SMELL IN AFT GALLEY THAT DISSAPATED AFTER TAKEOFF. NO SMELL NOTED DURING FLIGHT. SULFER SMELL CAME BACK VERY FAINT ON TOUCHDOWN BUT DAug 13, 2023 · N294AK · Boeing 737900ERSDR ASAA2023081344619Unknown · unknownFAULT LIGHT ILLUMINATED DURING APU START ATTEMP AT FL380. SUCCESSFUL CSS ACOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. ON DEFERRAL.Aug 13, 2023 · N593AS · Boeing 737890SDR DXTA2023081492850Unknown · unknownAPU (EXCEPT GENERATOR): IN FLIGHT AT 25,000FT WITH APU ON WITH MAX AIR SELECTED , A STRONG ODOR IN CABIN . TURNED APU OFF AND ODOR VERY SLOWLY DISSIPATED. ODOR DID NOT SMELL ELECTRICAL OR OILY. COMPUED WITH NJA TASK CARDS, THE COALESCER WAS A LLTTLE DIRTY •Aug 11, 2023 · N323QS · Cessna 680CESDR NACA2023081000001Unknown · unknownFLIGHT CREW REPORTING OIL COMING OUT OF APU AREA. OPENED APU AND CHECK OIL LEVEL, FOUND FULL. NO OIL LEAKS NOTED PER AMM 49-16-00Aug 10, 2023 · N565NC · Boeing 767300SDR AALA202308189470Apu · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORT DIRTY SOCK SMELL NEAR DOOR 2R ON TAKEOFF ONLY. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO AN INTERNAL OIL LEAK ON THE APU. **SUPPLEMENTAL REPORT FOR AALA202308079470: MAINTENANCE CLEANED THE APU COMPARTMENT AAug 5, 2023 · N920US · Airbus A320*SDR AALA202308079470Apu · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORT DIRTY SOCK SMELL NEAR DOOR 2R ON TAKEOFF ONLY. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO AN INTERNAL OIL LEAK ON THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)Aug 5, 2023 · N920US · Airbus A320*SDR DXTA2023080792310Apu · defectiveAFTER LANDING THE APU WAS STARTED, SHORTLY AFTER THE BLEEDS WERE CONFIGURED FOR APU AIR USE (AS WE PULLED ONTO THE PARKING AREA) THE COCKPIT AND CABIN FILLED WITH SMOKE (FROM THE GASPER VENTS). THERE WAS NO ASSOCIATED APU FIRE INDICATION. REMOVED AND REPLACEDAug 4, 2023 · N787QS · Bombdr BD1001A10SDR ASAA2023080444466Unknown · unknownAPU ON START AFTER LANDING RAN QRH-OFF FOR MINUTES RESTART SUCCESSFULL. GROUNDED - YES. ON DEFERRAL.Aug 4, 2023 · N948AK · Boeing 7379SDR ASAA2023080444434Unknown · unknownAPU LOW PRESSURE LIGHT ILLUMINATED. SUCCESSFUL START ON SECOND ATTEMPT AT GATE. GROUNDED - YES. PER LP 60721533, MEL 49-99A (ETOPS) APU ON DEMAND PROGRAM, APU CONTINUOUS OPERATION (ETOPS) AND C/N 31035942. CSS SUCCESSFUL PER MCC. MX NOTED.Aug 4, 2023 · N942AK · Boeing 7379SDR ABXA20230807155Unknown · unknownAPU AUTOMATIC SHUTDOWN AFTER PUSHBACK, AIRCRAFT BACK TO BLOCK. FLIGHT CREW RESTARTED NORMALLY, NO OTHER ISSUES. AIRCRAFT DEPARTED.Aug 4, 2023 · N226CY · Boeing 767383SDR ASAA2023080344570Apu · leakingVERIFICATION OF APU LEAK. GROUNDED - YES. REMOVED AND REPLACED APU PER ASA T/C 49-ASA-02 AND T/C 49-ASA-03. THIS CLOSES TSR 714736 SEA MC JEREMY NOTIFIED.Aug 3, 2023 · N921AK · Boeing 7379SDR AALA202308047690Apu · odorAIRCRAFT WAS GROUNDED: BRIEFLY DURING CRUISE, A SWEATY SOCK SMELL WAS EXPERIENCED AROUND 2L. SMELL RETURNED AT ENGINE SHUTDOWN, STRONGER THIS TIME. MAINTENANCE HAS ISOLATED THE SOURCE OF THE ODOR TO THE APU DUE TO EVIDENCE OF OIL LEAKS BEING FOUND **SUPPLEMENTJul 31, 2023 · N916US · Airbus A320*SDR AALA202308037690Apu · odorAIRCRAFT WAS GROUNDED: BRIEFLY DURING CRUISE, A SWEATY SOCK SMELL WAS EXPERIENCED AROUND 2L. SMELL RETURNED AT ENGINE SHUTDOWN, STRONGER THIS TIME. MAINTENANCE HAS ISOLATED THE SOURCE OF THE ODOR TO THE APU DUE TO EVIDENCE OF OIL LEAKS BEING FOUND **SUPPLEMENTJul 31, 2023 · N916US · Airbus A320*SDR AALA202308041710Apu · odorAIRCRAFT WAS GROUNDED: OIL SMELL IN FLIGHT AND ON THE GROUND WITH BOTH PACKS AND ENGINE BLEEDS ON, APU OFF, SMELL GOT BETTER WITH PACK #1 OFF. **SUPPLEMENTAL REPORT FOR AALA202308011710: MAINTENANCE CLEANED THE APU OIL COOLING FAN INLET AND EXHAUST DUCTS, ALONJul 30, 2023 · N829AW · Airbus A319132SDR WX0A2023073131807Unknown · unknown(EMERGENCY DECLARED) APU AUTO SHUT DOWN IN FLIGHT / REPLACED LOW OIL PRESSURE SWITCH ON APU, LEAK AND OPS CHECK GOOD. IAW AMM 49-94-14 PB 401 CONF 16"Jul 30, 2023 · N333NV · Airbus A319111SDR YENA2023080300895Unknown · unknownFLT#936, SJU-STT. 'FLIGHT ATTENDANTS REPORT CABIN ODOR; PERFORMED PACK BURNS, NO SMELL NOTED. PERFORMED VISUAL INSPECTION OF APU AREA NO LEAKS OR DEFECTS FOUND. C/W INFO NOTICE 2017-T015F SECTION A. MDDR CLEARED. MX-4 UPDATED. PLACARD REMOVED.'Jul 28, 2023 · N779JB · Airbus A320232SDR NACA2023072800001Unknown · unknownAPU FAULT ON TAXI. ACCOMPLISHED APU BITE TEST PER FIM 49-11 FAULT TREE 958. NO FAULTS NOTED. OPS CHECK GOOD.Jul 28, 2023 · N321CM · Boeing 767323SDR NACA2023072700001Unknown · unknownAPU FAULT INOP. APU NO START AFTER 3 ATTEMPTS.Jul 27, 2023 · N321CM · Boeing 767323SDR ASAA2023072744312Unknown · unknownAFTER LANDING APU FAILED TO START AND APU FAULT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED APU BITE PROCEDURES, FOUND MAINT MSG 49-41011 "NO FLAME SHUTDOWN" LOGGED ON LEG 0, PERFORMED B737-9 IFIM TASK 49-40-00-810-804 STEP B(2)B, NO ACTIVE FAULTS NOTED. STARJul 27, 2023 · N962AK · Boeing 7379SDR DXTA2023072691740Unknown · unknownAPU (EXCEPT GENERATOR): AFTER TAKE STRONG SMELL IN AC MORE LIKE BURNING OIL OR CLEANING FLUID. SHUT DOWN APU SMELL WENT AWAY. AFTER LANDING STARTED APU SMELL RETURNED. REMOVED AND REPLACED COALESCER SOCK WITH NEW. OPS CHECK LEAK CHECK GOOD. DONE IAW MM 21-50-Jul 25, 2023 · N683QS · Cessna 560XLSDR ASAA2023072344206Unknown · unknownAPU LOW OIL PRESSURE LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED IFIM TASK 49-10-00-810-801 STEP B. INITAL EVALUATION. NO FAULTS FOUND. APU OPS NML. SEAMC ROBERT NOTIFIED. A/C OK FOR SERVICE.Jul 23, 2023 · N941AK · Boeing 7379SDR M17F20230808107Apu · failedAPU NEUMATIC INOPERATIVEJul 22, 2023 · N377AR · Boeing 73786JSDR AALA202307311913Actuator · leakingAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DO TO FUEL IMBALANCE. AIRCRAFT DIVERTED TO AZO, LANDING SAFELY. FOUND FUEL LEAK FROM INLET GUIDE VANE (IGV) ACTUATOR. REPLACED IGV ACTUATOR PER AMM 49-52-12.Jul 22, 2023 · N979AN · Boeing 737823SDR NACA202307250003Unknown · unknownAPU FAILED TO START TWICE AFTER LANDING. PERFORMED FIM 49-61-04AMM APU BITE TEST 49-11 FT 958, RESET FAULTS EGT#2 CIRCUIT CODE #12Jul 21, 2023 · N321CM · Boeing 767323SDR ASAA2023072044142Unknown · unknownAPU SHUTDOWN AUTOMATICALLY INFLIGHT DUE TO MEL ON #1 IDG THIS PUT US IN A SINGLE AC SOURCE SITUATION RAN QRH AND DIVERTED TO KSMF. GROUNDED - YES. DIVERSION - FOUND CANNON PLUG BACKSHELL ON OIL PRESSURE MODULE LOOSE REMOVED AND INSPECTED PLUG AND PINS REINSTALJul 20, 2023 · N320AS · Boeing 737990SDR NACA2023072419001Unknown · unknownAFTER CREW STARTED APU, NO DUCT PRESSURE. PERFORMED APU BITE TEST FOUND FPT SENSOR FAULT, REMOVED AND REPLACED FAULT SENSING MODULE PER AMM 49-53-08, OPS CHECK GOOD. APU BLEED GOOD. NO TRAX INFO ON PART.Jul 19, 2023 · N379CX · Boeing 767323SDR HALA2023071700144Unknown · unknownETOPS - APU AUTO SHUT DOWN ON ARRIVAL, ATEMPTED 3 STARTS UNSUCCESSFULLY. REMOVED AND REPLACED APU IGNITION EXCITER UNIT PER AMM 49-41-38. OPS CHECK GOOD NO FAULTS DETECTED.Jul 15, 2023 · N213HA · Airbus A321271NSDR HALA2023970490147Unknown · unknownETOPS - AFTER LANDING, APU FAULT CAME UP W/ APU STILL RUNNING. PER ECAM APU SHUTDOWN. REPLACED LUBE PUMP FILTER AND GEN SCAV FILTER IAW AMM 49-91-41-960-801A. LEAK CHECK GOOD. 14 JUL 2023 024625. PERFORMED RESISTANCE CHECK OF CONNECTORS PER TSM 49-91-00-810-80Jul 14, 2023 · N399HA · Airbus A330243SDR HALA2023071700145Unknown · unknownETOPS - AFTER LANDING ON TAXI IN 2 APU START ATTTEMPTS RESULTING IN 2 APU AUTO SHUT DOWNS. REMOVED AND REPLACED APU IGNITION UNIT PER AMM 49-41-38. OPS CHECK OK. AC OK FOR SERVICE.Jul 14, 2023 · N218HA · Airbus A321271NSDR IPXA2023071793669Apu · inoperativeINSPECTION TYPE:NA*DIVERSION* DURING CRUISE APU AUTO SHUTDOWN APU OIL QTY BELOW MIN INDICATED. DIVERT TO BIL DUE ENG 2 B SYSTEM IGN DIVERT 1205Z AND APU REQ PER MELFOUND LOOSE B NUT ON LINE FOM OIL PUMP OUTLET. TIGHTENED PER AMM 49-90-00. LINE NUT OPS CHECKED Jul 14, 2023 · N127UP · Airbus A300F4622RSDR ASAA2023071344013Unknown · unknownAFTER PULLING INTO GATE AND SWITCHING TO APU BLEED FOR A/C AFTER ENGINE SHUT DOWN APU BLEED CLOSED ON ITS OWN AND DUAL BLEED LT EXTINGUISHED DUCT PRESSURE ZERO APU ELECTRONICS NORMAL. GROUNDED - YES. OPERATED APU WITH BLEED AIR AND PACKS ON FOR SEVERAL MINUTESJul 13, 2023 · N464AS · Boeing 737990ERSDR NACA202307180002Unknown · unknownMX DELAY APU NO START. FOUND APU BATTERY DEAD, REPLACED BATTERY AND CHARGER PERFORM APU OPS CHECK REF B767-AMM 49-11-00-501 OPS CHECK GOOD.Jul 12, 2023 · N399CM · Boeing 767323SDR ASAA2023071244002Unknown · unknownAPU FAULT LIGHT ILLUMINATED ON START ATTEMPT. ATTEMPTED 2 STARTS. GROUNDED - YES. UPON ARRIVAL MX PERFORMED THREE SUCCESSFUL APU STARTS. ALL INDICATIONS NORMAL. SEE LOG PG 60630075 FOR MEL DEFERRAL.APU START AND OPS REF. AMM 49-11-00.Jul 12, 2023 · N921AK · Boeing 7379SDR ASAA2023071144012Unknown · unknownAPU FAULT LIGHT OCCURS WHEN PWR IS SUPPLIED VIA EITHER APU START SW OR APU TEST MODE. FOUND MAINT MSG 49-89002 NO INPUT FROM APU ECU. APU WILL NOT START. GROUNDED - YES. ON DEFERRAL.Jul 11, 2023 · N963AK · Boeing 7379SDR ASAA2023071043977Unknown · unknownAPU MAINT LIGHT ILLUMINATES INTERMITENTLY. GROUNDED - YES. PERFORMED APU BITE TEST PER FIM 49-60 TASK 801 NO FAULT FOUND APU MAINT LIGHT IS OFF SEAMC DAN NOTIFIED.Jul 10, 2023 · N478AS · Boeing 737990ERSDR ASAA2023071043964Unknown · unknownLOW OIL PRESSURE INDICATED ON APU AFTER START ATTEMPT. GROUNDED - YES. PERFORMED APU BITE PER FIM 49-60 TASK 801NO FAULTS FOUND. APU OPS CHK GOOD.Jul 10, 2023 · N536AS · Boeing 737890SDR DALA2023071105605Unknown · unknownSHIP 3351 DURING W/A ON A/C ARRIVAL NOTICED THA EXCESSIVE SMOKECOMES OUT OF APU'S EXHAUST. CORRECTIVE ACTION: PERFORMED APU R/R. (4932846)Jul 9, 2023 · N851NW · Airbus A330223SDR ASAA2023070743941Unknown · unknownATTEMPTED TWO APU STARTS AFTER LANDING IN SEA. BOTH RESULTED IN AMBER FAULT LIGHTS. GROUNDED - YES. FAULT CODE 49-41012 IS DRIVEN BY CORRELATED FAULT 49-41254 (START CONVERTER UNIT SHOWS START SYSTEM INOP). BOTH FAULTS SHOW NOT ACTIVE, PER B737-9 IFIM TASK 49-Jul 7, 2023 · N942AK · Boeing 7379SDR AALA202307060017Apu · odorAIRCRAFT WAS GROUNDED: SMELLY SOCK ODOR WITH APU OR ENGINE RUNNING WHILE ON THE GROUND AS WELL AS DURING CLIMB AND DESCENT. MAINTENANCE REPLACED THE APU PER TASK CARD 26L31049003 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO LEAKS OR ODORS NOTED.Jul 4, 2023 · N127AA · Airbus A320*SDR NACA202307070028Unknown · unknown- INSPECTION THE APU LOW PRESSURE FUEL FILTER DPI FOUND THE RED BOTTON WAS POPPED. FOLLOW B767-300 AMM 49-05-03 REV 139 DATE APR 22, 2023 WHEN DPI BUTTON IS POPPED, THE FUEL FILTER NEED CHANGED. REMOVED AND REPLACED THE FUEL FILTER AS PER B767-300 AMM 49-31-04Jul 1, 2023 · N399CM · Boeing 767323SDR SWIA2023062900008Unknown · warning messageAPU OIL TEMP CAUTION MESSAGE IN FLIGHT. RAN QRH LANDED AT NEAREST SUITABLE. (FLT 5455 FILED CLOSED)REMOVED AND REPLACED WITH SERVICEABLE THE OIL COOLER ON THE APU IN REFERENCE TO CRJ 200 AMM 49-91-07 OPS CHECKS GOOD NO LEAKS NOTED, REMOVED AND REPLACED WITH NEJun 28, 2023 · N909SW · Cndair CL6002B19SDR HALA2023062800137Unknown · unknownETOPS - WHILE PERFORMING TASK CARD FOUND HOLE IN APU SURGE CONTROL VALVE DUCT. REPLACED APU SURGE CONTROL VALVE DUCT IN ACCORDANCE WITH AMM 49-51-52. LEAK CHECK GOOD OPS CHECK GOOD. OK FOR SVCJun 27, 2023 · N360HA · Airbus A330243SDR DXTA2023062789650Unknown · unknownAFTER STARTING APU, A FUEL SMELL WAS PRESENT IN COCKPIT ONLY. FUEL SMELL WAS ALSO PRESENT WALKING AROUND THE TAILCONE AREA. INSPECTED FOR FUEL LEAKS, NO LEAKS NOTED AFT EQUIPMENT BAY, APU ENCLOSURE & LT WING. FOUND ONE FUEL PANEL ON RH BELLY AND 2 PANELS OJun 27, 2023 · N246QS · Cndair CL6002B16SDR NACA2023062500001Unknown · unknownAPU FAULT EICAS MESSAGE 2 ATTEMPTS TO START APU. APU BITE TEST ACCOMPLISHED IAW AMM 49-11-PT958, NO FAULT FOUND. APU STARTED FIRST ATTEMPT WITH NO FAULTS.Jun 25, 2023 · N321CM · Boeing 767323SDR NACA2023061900002Unknown · unknown3 FAILED STARTS TO START THE APU. APU DEFERRED PER MEL 49-11-01A CAT C ON 6/19.Jun 19, 2023 · N379CX · Boeing 767323SDR AALA202306216489Fuel Control · leakingAIRCRAFT WAS GROUNDED: STRONG ODOR REPORTED IN CABIN. MAINTENANCE FOUND OIL IN THE APU INTAKE AREA AND REPLACED THE APU LUBE MODULE (AALA202306217562) ALONG WITH THE APU FUEL CONTROL UNIT (AALA202306216489). A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLIJun 18, 2023 · N572UW · Airbus A320*SDR AALA202306217562Lubrication Unit · leakingAIRCRAFT WAS GROUNDED: STRONG ODOR REPORTED IN CABIN. MAINTENANCE FOUND OIL IN THE APU INTAKE AREA AND REPLACED THE APU LUBE MODULE (AALA202306217562) ALONG WITH THE APU FUEL CONTROL UNIT (AALA202306216489). A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLIJun 18, 2023 · N572UW · Airbus A320*
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