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.
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
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 NACA2025011000002Control Unit · failedAPU WILL NOT START. DEFERRED PER MEL 49-11-01A CAT C @ 1807Z 1/10/25. REMOVED AND REPLACED APU CONTROL UNIT.SDR 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.SDR 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 SERVICESDR 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 SERVICESDR 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.SDR 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>)SDR 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.SDR 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)SDR 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.SDR 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.SDR NACA2024110200002Tru · inoperativeAPU DID NOT START (3 ATTEMPTS). TROUBLESHOT APU FOUND TRU INOP. REMOVED AND REPLACED K617 AND K 197, APU CHECKED NORMAL IAW AMM 49-11-00SDR 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.SDR NACA2024103100001Apu · faultedAPU FAULT 2 ATTEMPS, SHOWS 25 OIL. PERFORMED OPS CHECK OF APU IAW AMM 49-11-00 CKECKED NORMALSDR NACA2024100800002Ecu · failed2 FAILED APU STARTS. FOUND ECU CODES LATCHED IN MEMORY, REMOVED AND REPLACED ECU IAW AMM 49-61-05SDR 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 SUCESSUFLLYSDR 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 49-11-00SDR 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 OKSDR 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.SDR I5PA2024082468806Ignition Lead · failedFLT NO: N/A (MX INSP.). ESI - APU FAILED TO START. R/R APU IGNITION LEAD, OPS CHECK GOOD.SDR I5PA2024082468805Igniter · failedFLT NO: N/A (MX INSP.). ESI - APU FAILED TO START. R/R APU IGNITOR PLUG, OPS CHECK GOOD.SDR I5PA2024082468804Exciter · failedFLT NO: N/A (MX INSP.) ESI - APU FAILED TO START. R/R APU IGNITION EXCITER, OPS CHECK GOOD.SDR 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.SDR 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.SDR I5PA2024081968802Starter · failedFLT NO: N/A. MX INSP. ESI - APU FAILED TO START. R/R APU STARTER OPS CHECK GOOD.SDR 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 DEFESDR 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 PLUSDR 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 49-11-00SDR 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. MSDR 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 SDR I5PA2024072168801Starter · inoperativeFLT NO: MGE301 - ESI. APU WILL NOT START. REPLACED APU STARTERSDR 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 RESDR 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. PERFORMEDSDR 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 SATISSDR NACA2024071208001Starter · failedAPU FAULT, APU WOULD NOT START. REMOVED AND REPLACED APU STARTER IAW AMM 49-41-01. PART IS UNKNOWN TO TRAX.SDR NACA2024050200002Apu · unknownAPU FAILS TO START. PERFORMED APU BITE PROCEDURE PER B767 FIM 49-11 FT 987, SYSTEM OK APU START NORMAL.SDR 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.SDR 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 49-11-00SDR 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.SDR 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 NOTSDR 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.SDR 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.SDR NACA2024030800001Apu · faulted2 ATTEMPTED APU STARTS NOT RUN AND FAULT DISCRETE LIGHTS. DEFERRED APU IAW MEL 49-11-01A ON 3/8/2024 0850ZSDR 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. RSDR 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 WSDR 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.SDR 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 CSDR 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.SDR I5PA2024010275701Starter · faultyFLT: N/A (MX FINDING). ESI - APU WILL NOT START. REPLACED APU STARTER PER AMM. APU OPS CHECK GOOD.SDR 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. OSDR I5PA2024010168801Starter · burnedFLT: N/A (MX FINDING). ESI - APU FAULT. T/S PER FIM. FOUND APU STARTER BURNED. REPLACED APU STARTER PER AMM.
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