JASC 4940

Service difficulty reports · 1,424

Reports filed under 4940 · APU Start/Ignition 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 = '4940'
  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 NACA2025011000002Control Unit · failedAPU WILL NOT START. DEFERRED PER MEL 49-11-01A CAT C @ 1807Z 1/10/25. REMOVED AND REPLACED APU CONTROL UNIT.Jan 10, 2025 · N379CX · Boeing 767323SDR HALA20250113017Exciter · faultedETOPS - ECAM: APU AUTO SHUTDOWN. REMOVED AND REPLACED APU IGNITER PLUG PER AMM 49-41-41. REMOVED AND REPLACED EXCITER BOX PER AMM 49-41-38. REMOVED AND REPLACED IGNITION ELECTRICAL LEAD PER AMM 49-41-43 OPS CHECK GOOD.OK FOR SERVICE.Jan 10, 2025 · N228HA · Airbus A321271NSDR HALA20250109012Exciter · failedETOPS - APU AUTO SHUTDOWN DURING TAXI IN. REPLACED APU IGNITION EXCITER AND IGNITOR PER AMM 49-41-41 AND 49-41-38. APU STARTS, NO FAULTS. OK TO CONTINUE SERVICEJan 8, 2025 · N218HA · Airbus A321271NSDR HALA20241230386Ignition Sys · malfunctionedETOPS - ECAM APU AUTO SHUTDOWN ON START ATTEMPT 3 UNSUCCESSFUL START ATTEMPTS. REMOVED AND REPLACED IGNITION UNIT PER A321 AMM 49-41-38 ECB TEST OK OPS CHECK NORMAL A/C OK FOR SERVICEDec 28, 2024 · N227HA · Airbus A321271NSDR HALA20241204349Exciter · faultedETOPS - APU FAULT DURING TAXI IN DURING APU START. TRIED AGAIN PRIOR TO BLOCK IN AND FAULTED AGAIN. PERFORMED TSM 49-41-00-810-812-A. REMOVED AND REPLACED EXCITER-IGNITION REF AMM 49-41-38. OPS CHECK GOOD. NO FAULT NOTED. OK FOR SERVICE.Dec 3, 2024 · N5827K · Airbus A330343SDR UIEA2024112901137Brush Block · wornAPU STARTER MOTOR BRUSH WEAR INDICATOR WORNOUT(<P>ACCOMPLISHED R/R OF APU STARTER MOTOR IN REFERENCE TO B767 AMM :49-41-01. OPS TEST NORMAL. NO LEAKS NOTED</P>)Nov 29, 2024 · N645GT · Boeing 767324SDR HALA20241129341Exciter · faultyETOPS - APU FAILED TO START ON TAXI IN APU AUTO SHUTDOWN. REMOVED AND REPLACED APU IGNITION EXCITER PER AMM 49-41-38-000-003-A. OPS CHECK GOOD. OK FOR SVC.Nov 27, 2024 · N212HA · Airbus A321271NSDR DALA2024120611490Apu · corrodedSHIP 3134 CORROSION ON EXITER IGNITION BOX IN APU COMPARTMENT. CORRECTIVE ACTION: REPLACED EXITER IGNITION BOX IN APU COMPARTMENT AS PER A320 FAM AMM 49-41-38-000-003-A AND AMM 49-41-38-400-003-A. (0669436)Nov 20, 2024 · N334NB · Airbus A319114SDR 2024FA0000840Bracket · crackedON THIS DATE - BRACKET PN: 3888525.2 UTILIZED TO ATTACH IGNITION UNIT TO HONEYWELL APU 36-150[CL] FOUND TO BE CRACKED - SUSPECT POSSIBLE VIBRATION ISSUE. DISCOVERED DURING REMOVAL OF IGNITION UNIT. SECOND REPORT SENT. ISSUE NOTED ON TWO SEPARATE AIRCRAFT.Nov 13, 2024 · N544BA · Bombdr CL6002D15SDR 2024FA0000839Bracket · crackedON THIS DATE, BRACKET PN: 3888525-2 UTILIZED TO ATTACH IGNITION UNIT TO HONEYWELL APU 36-150[CL] FOUND TO BE CRACKED. - SUSPECT POSSIBLE VIBRATION. ISSUE DISCOVERED DURING REMOVAL OF IGNITION UNIT.Nov 13, 2024 · N541BA · Bombdr CL6002D15SDR NACA2024110200002Tru · inoperativeAPU DID NOT START (3 ATTEMPTS). TROUBLESHOT APU FOUND TRU INOP. REMOVED AND REPLACED K617 AND K 197, APU CHECKED NORMAL IAW AMM 49-11-00Nov 2, 2024 · N566NC · Boeing 7673BGSDR HALA20241104308Ignition Unit · faultedETOPS - APU AUTO SHUTDOWN ECAM CAUTION DURING APU START. REMOVED AND REPLACED APU IGNITION UNIT, IGNITER PLUG, AND IGNITER PLUG ELECTRICAL LEAD PER AMM 49-41-38. OPS CHECK GOOD PER AMM 49-00-00. OK FOR SERVICE.Nov 1, 2024 · N218HA · Airbus A321271NSDR NACA2024103100001Apu · faultedAPU FAULT 2 ATTEMPS, SHOWS 25 OIL. PERFORMED OPS CHECK OF APU IAW AMM 49-11-00 CKECKED NORMALOct 31, 2024 · N566NC · Boeing 7673BGSDR NACA2024100800002Ecu · failed2 FAILED APU STARTS. FOUND ECU CODES LATCHED IN MEMORY, REMOVED AND REPLACED ECU IAW AMM 49-61-05Oct 8, 2024 · N566NC · Boeing 7673BGSDR HALA20240913258Starter · inoperativeETOPS - ON MORNING WAKE UP APU FAIL TO START NO ROTATION. REMOVED AND REPLACED APU STARTER IAW AMM 49-42-51 NO FIX. NO ROTATION. REPLACED FUSE 6KA1 WITH NEW IAW A300 AMM 49-42-00-960-801 APU START SUCESSUFLLYSep 12, 2024 · N375HA · Airbus A330243SDR NACA2024090800001Ecu · faultedAPU FAULT TWO STARTS ATTEMPTED. ACCOMPLISHED FIM 49-11 FAULT TREE 958 FOUND ECU START ABORTED FAULT. RESET ECU, OPERATIONAL CHECK GOOD PER AMM 49-11-00Sep 8, 2024 · N379CX · Boeing 767323SDR NACA2024090500001Apu · faultedAPU FAULT TWO STARTS ATTEMPTED. PERFORMED APU ECU BITE TEST NO FAULT FOUND IN REF FIM 49-11 FAULT TREE 918 APU OPS CHECK OKSep 5, 2024 · N379CX · Boeing 767323SDR ABXA20240828160Warning Message · false activationAFTER PUSH BACK ,APU FAULT .A/C RETURNED TO THE GATE AND MTX GROUNDED AC .MTX PERFORMED B.I.T.E. CHECK ,APU ECU SHOWING NO LIGHT OFF MTX DEFERRED THE APU FOR DEPARTURE IAW MEL ABX-49-11-1A AND RETURNED AC TO SERVICE.Aug 28, 2024 · N750AX · Boeing 767232SDR I5PA2024082468806Ignition Lead · failedFLT NO: N/A (MX INSP.). ESI - APU FAILED TO START. R/R APU IGNITION LEAD, OPS CHECK GOOD.Aug 24, 2024 · N688SL · Boeing 757230SDR I5PA2024082468805Igniter · failedFLT NO: N/A (MX INSP.). ESI - APU FAILED TO START. R/R APU IGNITOR PLUG, OPS CHECK GOOD.Aug 24, 2024 · N688SL · Boeing 757230SDR I5PA2024082468804Exciter · failedFLT NO: N/A (MX INSP.) ESI - APU FAILED TO START. R/R APU IGNITION EXCITER, OPS CHECK GOOD.Aug 24, 2024 · N688SL · Boeing 757230SDR NACA2024082100001Ecu · failedAPU FAULT DURING GROUND START, EGT'S 760C TWO FAILED ATTEMPTS. REMOVED AND REPLACED APU ECU OPS CHECK NORMAL IAW AMM 49-61-01, PART IS UNKNOWN TO TRAX.Aug 21, 2024 · N379CX · Boeing 767323SDR NACA202408260001Ecu · looseAPU DID NOT START AFTER LANDING, APU FAULT EACH TIME, 3 ATTEMPTS. FOUND APU ECU LOOSE IN E/E BAY, REINSTALLED AND TIGHTENED PER AMM 20-10-01 APU STARTED NORMALLY.Aug 20, 2024 · N379CX · Boeing 767323SDR I5PA2024081968802Starter · failedFLT NO: N/A. MX INSP. ESI - APU FAILED TO START. R/R APU STARTER OPS CHECK GOOD.Aug 19, 2024 · N688SL · Boeing 757230SDR UIEA2025081501125Starter · failedJUST BEFORE ENGINE START, A VERY STRONG ELECTRICAL SMELL OVERWHELMED THE FLIGHT DECK. SMELL GOES AWAY AFTER PACKS ARE SHUT OFF(<P>APU STARTER WAS BURNT AND WAS DETERMINED TO BE THE CAUSE OF THE SMOKE SMELL. R/R APU STARTER PER AMM 49-41-01. OPS CHK OK. NO DEFEAug 16, 2024 · N642GT · Boeing 7673Y0SDR HALA20240819229Igniter · faultedETOPS - FLIGHT CREW REPORTS APU AUTO SHUTDOWN- APU FAULT. 3 UNSUCCESFUL ATTEMPS. APU SHUTDOWN REPORTS FAULTING IGN PLUG (59KA31)/ IGN EXCITER (59KA10). NO FLAME. TROUBLESHOOTING FOUND NO AUDIBLE IGNITION. 08/16/2024 19846. REMOVED AND REPLACED APU IGNITIER PLUAug 16, 2024 · N374HA · Airbus A330243SDR NACA2024081500001Apu · faultedAPU FAULT DURING START, APU WOULDN'T START. ACCOMPLISHED APU BITE TEST NO FAULTS NOTED PER FIM 49-11 FT 958, APU OPS CHECK GOOD PER AMM 49-11-00Aug 15, 2024 · N379CX · Boeing 767323SDR YENA2024081401118Starter · failedFLT#887, BOS-LAX. (ETOPS) 'APU AUTO SHUTDOWN. 2 ATTEMPTS. ( APU SYSTEM A321NEO ETOPS ); REMOVED AND REPLACED APU STARTER IAW AMM 49-40-00. OPS CHECK OK. RECRIMPED DAMAGED RING TERMINALS ON STARTER POSITIVE LEAD AND SENSE WIRE. THIS ACTION CLEARS MDDR 556967. MAug 13, 2024 · N2151J · Airbus A321271NSDR HALA20240729202Exciter · faultedETOPS - APU CLASS 2 FAULTS, IGNITION/EXCITER FAULTS ON PREVIOUS FLIGHT LEGS. REF:TSI 003228. TROUBLESHOT PER TSM 49-00-00-810-881-A. MAINT MESSAGE IGN PLUG (59KA31)/IGN EXCITER (59KA10) FAULT CODE 072 RECEIVED. REMOVED AND REPLACED 2EA UPPER.LOWER IGNITER Jul 27, 2024 · N393HA · Airbus A330243SDR I5PA2024072168801Starter · inoperativeFLT NO: MGE301 - ESI. APU WILL NOT START. REPLACED APU STARTERJul 21, 2024 · N688SL · Boeing 757230SDR AALA202407253664Starter Gen · burned outAIRCRAFT WAS NOT GROUNDED: APU GENERATOR DROPPED OFFLINE AFTER ENGINE SHUTDOWN ACCOMPANIED BY A STRONG BURNING SMELL.**SUPPLEMENTAL REPORT FOR (AALA202407233664): ACCOMPLISHED SOF CARD 08L0021001 FOUND START GENERATOR ELECTRICAL CONECTIONS BURNT REMOVED AND REJul 19, 2024 · N339PL · Boeing 737823SDR CALA2024071700241Power Unit · faultyBATT DISCHARGE LIGHT IMAGE OF CURRENTLY INSTALLED APU START POWER UNIT. ADDITIONAL IMAGES ADDED. UNIT, APU START OFF 29-4941-9-0002 8135 ON 0000 UNIT, APU START OFF 29-4941-9-0002 8135 ON 29-4941-9-0002 8262 REMOVED AND REPLACED APU START POWER UNIT. PERFORMEDJul 14, 2024 · N37563 · Boeing 7379SDR HALA20240712191Exciter · faultedETOPS - APU FAULT APU AUTO SHUT DOWN. S/DOWN REPORT FAULTS IGNITION EXCITER (59KA10) IGNITION EXCITER REPLACED IAW A330 AMM 49-41-38 PB401 REV 8, 01 APR 24. APU OPS SATISJul 11, 2024 · N395HA · Airbus A330243SDR NACA2024071208001Starter · failedAPU FAULT, APU WOULD NOT START. REMOVED AND REPLACED APU STARTER IAW AMM 49-41-01. PART IS UNKNOWN TO TRAX.Jul 8, 2024 · N566NC · Boeing 7673BGSDR NACA2024050200002Apu · unknownAPU FAILS TO START. PERFORMED APU BITE PROCEDURE PER B767 FIM 49-11 FT 987, SYSTEM OK APU START NORMAL.May 2, 2024 · N321CM · Boeing 767323SDR NACA2024043000004Apu · no discrepancyAPU WENT TO AUTO-SHUTDOWN, 2 ATTEMPTS TO START FAILED. ACCOMPLISHED APU CONTROL UNIT BITE TEST, NO FAULT FOUND IAW AMM 49-61-05.Apr 30, 2024 · N566NC · Boeing 7673BGSDR NACA2024043000001Apu · failedATTEMPTED 3 APU STARTS - APU FAULT EICAS MSG ALONG WITH APU DOOR STATUS MESSAGE FOR ALL 3 ATTEMPTS. PERFORMED APU BITE PROCEDURE PER FIM 49-11 AND RESET ECU, PERFORMED APU OPS CHECK IAW AMM 49-11-00Apr 30, 2024 · N321CM · Boeing 767323SDR NACA2024042600001Apu · no discrepancyAPU FAILED TO START AFTER TWO ATTEMPTS. PERFORMED FIM 49-11 FT 958 APU BITE PROCEDURE NO FAULTS DISPLAYED APU STARTING OPERATION NORMAL IAW AMM 49-11-00.Apr 26, 2024 · N321CM · Boeing 767323SDR YENA2024041700639Exciter · failedFLT#1408, CDG-JFK. (ETOPS) 'APU AUTO SHUTDOWN; T/S IAW TSM 49-00-81-810-821-A. REMOVED AND REPLACED IGNITER PLUG IAW AMM 49-41-41 AND IGNITER LEAD IAW AMM 49-41-43 AND EXCITER BOX UNIT IAW AMM 49-41-33. ALL OPS CHECK OK. APU RAN CONTINUOUSLY WITH NO ISSUES NOTApr 15, 2024 · N4022J · Airbus A321271NSDR HALA20240411091Exciter · faultedETOPS - APU AUTO SHUTDOWN ECAM AFTER WE LANDED WHEN WE TRIED TO START THE APU. FAULTING IGNITION EXCITER (8030KM). REMOVED AND REPLACED IGNITION UNIT PER AMM 49-41-38 AND IGNITER PLUG PER 49-41-41. SECURITY & OPS CHECK GOOD. OK FOR SVC.Apr 10, 2024 · N218HA · Airbus A321271NSDR HALA20240319072Exciter · faultedETOPS - APU - FAULT AUTO SHUT DOWN. REMOVED AND REPLACED EXITER- IGNITION PER AMM 49-41-38-00-801-A TROUBLESHOOTING DONE PER TSM 49-41-00-810-813-A. OPS CHECK GOOD. AC OK TO CONTINUE SERVICE.Mar 18, 2024 · N379HA · Airbus A330243SDR NACA2024030800001Apu · faulted2 ATTEMPTED APU STARTS NOT RUN AND FAULT DISCRETE LIGHTS. DEFERRED APU IAW MEL 49-11-01A ON 3/8/2024 0850ZMar 8, 2024 · N379CX · Boeing 767323SDR YENA2024031100369Exciter · failedFLT#187, BOS-LAX. (ETOPS) 'APU AUTOSHUTDOWN THREE CONSECUTIVE TIME ( APU SYSTEM A321NEO ETOPS ) APU FAILED TO LIGHT ON MULTIPLE FLIGHT AND GRD ATTEMPTS. NO FLAME; CHECKED PER TSM 49-00-81-810-821-A. REMOVED AND REPLACED IGNITER PLUG. NO HELP PER MM 49-41-41. RMar 8, 2024 · N2157J · Airbus A321271NSDR DALA2024020901832Packing · leakingWHEN APU FIRST STARTS STRONG DIRTY SOCKS FEET SMELL IN CABIN/ COCKPIT. UPON STARTING APU AFTER LANDING BURNT TOAST SMELL IN CABIN/COCKPIT. AS PER NO GO ODI PERFORMED A/C 0550-2002. BEGAN W/C 0550-2001 UP TO STEP 4 (DP 230877) C/W REMAINING STEPS ON A220 AMDS WFeb 7, 2024 · N115DU · Airbus BD5001A10SDR HALA20240122025Exciter · failedETOPS - APU FAULTS AUTO SHUTDOWN. 2ND ATTEMP NO START.REPLACED BOTH IGN PLUG AND EXCITER BOX PER AMM49-41-41 AND 49-41-38. OPS CK OK.Jan 21, 2024 · N395HA · Airbus A330243SDR HALA20240122024Starter · failedETOPS - APU FAULT AUTOSHUTDOWN AFTER LANDING. TWO FAILED ATTEMPTS. TROUBLESHOOT APU AFTER 3 ATTEMPTS PER TSM 49-62-00-810-837-A AND 49-62-00-810-804-A. REMOVED AND REPLACED APU STARTER PER AMM 49-42-51-000-801-A. STARTED APU MULTIPLE TIMES. STARTS SATIS. OPS CJan 20, 2024 · N380HA · Airbus A330243SDR HALA20240118022Igniter · faultedETOPS - APU WOULD NOT START AUTO SHUTDOWN. PREFORMED AUTO SHUTDOWN OPS CHECK PER TSM 49-62-00-810-918-A IGNITER FAULT FOUND REMOVED AND REPLACED IGNITER PER AMM 49-41-000-801-A OPS CHECK GOOD.Jan 17, 2024 · N395HA · Airbus A330243SDR I5PA2024010275701Starter · faultyFLT: N/A (MX FINDING). ESI - APU WILL NOT START. REPLACED APU STARTER PER AMM. APU OPS CHECK GOOD.Jan 2, 2024 · N757QM · Boeing 75729JSDR HALA20240103001Unknown · unknownETOPS - APU AUTO SHUTDOWN. PERFORMED TSM 49-00-81-810-825-A. CONFIRMED FAULT "IGNITION UNIT SHOWS OPEN CIRUIT." REMOVED AND REPLACED IGNITION UNIT, ELECTRICAL LEAD, AND IGNITER PLUG PER AMM'S 49-41-38, 49-41-41, AND 49-41-43. OPS CHECK GOOD, MESSAGE CLEARED. OJan 2, 2024 · N230HA · Airbus A321271NSDR I5PA2024010168801Starter · burnedFLT: N/A (MX FINDING). ESI - APU FAULT. T/S PER FIM. FOUND APU STARTER BURNED. REPLACED APU STARTER PER AMM.Jan 1, 2024 · N688SL · Boeing 757230
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