JASC 2421
Service difficulty reports · 4,277
Reports filed under 2421 · AC Generator-Alternator, 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 = '2421' 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 = '2421' 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 ASAA2021090335874Fault Message · illuminatedWHILE ACCOMPLISHING T/C 78273000 FOUND #1 ENGINE FAULT 73-11271 "THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE" SHORT TIME FAULT. GROUNDED - YES. PER T/C 78273000 RELEASED PER PLT DEFERRAL FOR SHORT TIME FAULT "50 FLT HRS" FOR #1 ENGINE FAULT 73-1127SDR P5CA2021090120337Warning Message · false activationAFTER ENGINE START R GEN OFF CAUTION MESSAGE. RAN QRH, MESSAGE CLEARED(<P>PERFORMED ECU BITE CHECK IAW 767 24-22-00 NO DEFECTS NOTED. PERFORMED ENGINE IDLE RUN IAW AMM 71-00-00 OPS CHECKS GOOD. </P>)SDR P5CA2021090100336Warning Message · false activationAFTER ENGINE START L GEN OFF CAUTION MESSAGE. RAN QRH, MESSAGE CLEARED(<P>PERFORMED BPCU BITE CHECK IAW 767 AMM 24-22-00. NO DEFECTS NOTED. PERFORMED ENGINE IDLE RUNS IAW B767 AMM 71-00-00 OPS CHECK GOOD</P>)SDR CALA2021082501434Generator · no testEMERGENCY GENERATOR SYSTEM OPS CHECK FAILED TO SHED. EMER GEN AND ESS TR VOLTAGE ANS FREQS DO NOT SHOW. REPLACED RELAY 12XE AND SWITCHING CONTACTOR 3XC NO HELP. AWAITING CONTROL UNIT 1XE FOR FURTHER TROUBLESHOOTING CONFIRMATION. . NO FIX. REPLACED EMERGENCY GESDR CALA2021082501430Quick Disconnect · looseRIGHT ENGINE DRIVE LIGHT ILLUMINATED AND CREW DISCONNECTED IDG. FOUND #2 ENG IDG LOW OIL QUANTITY MESSAGE ON EICAS STATUS PAGE. FOUND IDG OIL LEAKAGE FROM BOTH QUICK DISCONNECTS SERVICE FITTINGS FOR OVERFLOW DRAIN AND PRESSURE FILL. REPLACED QUICK DISCONNECT FSDR HALA2021082300103Generator · defectiveETOPS - BTB APU GEN FAULT // REMOVED AND REPLACED APU GENERATOR PER A330 AMM 24-23-51. CONSTANT OIL LEAK FORM GEN AND APU GEAR BOZ. APU GEN CAME ON LINE FOR 5 MIN AND THEN DROPPED POWER. REMOVED GEN. REPLACED SCAVENGE FILTER. NO DEBRIS NOTICED. INSTALLED NEW GSDR AALA202108237709Generator · leakingAIRCRAFT WAS GROUNDED: DURING CLIMB BELOW 10,000 AND DURING DESCENT BELOW 10,000 FT FLIGHT ATTENDANT REPORTED SMELLY SOCK ODOR AFT CABIN BEHIND OVER WING. AIRCRAFT MAINTENANCE FOUND OIL LEAKING FROM THE APU GENERATOR MOUNT BOLT LOCATION AND REPLACED THE GENERSDR FDEA202108192041Gcu · failedON DEPARTURE PASSING ABOUT 2,000, THE RT GENERATOR TRIPPED OFF LINE. TRIED TO RESET IAW QRH WITH NO JOY. GENERATOR STAYED OFF LINE & THE RIGHT MAIN BUS WOULD NOT ACCEPT POWER. ACCOMPLISHED T/S REF. FIM TASK 804, RECORDED FAULTS FROM BPCU RIGHT GEN POWER SDR UIEA2021081701815Gcu · faultedR GEN DRIVE EICAS MSG IN-FLIGHT. R GEN DRIVE DISCONNECTED AS PER QRH.(<P>REMOVED AND REPLACED R ENG GCU PER AMM 24-22-02. OPS CHECK GOOD. PERF R ENG IDLE RUN. NO MSG IN VIEW OR DEFECTS NOTED. INSPECTED & VERIFIED I.D.G AT PROPER LEVEL PER AMM 12-13-03. SYSTEM SDR DALA2021081804797Gcu · failedSHIP 1601 -ATB- DUE TO LT GENERATOR FAILURE ON TAKE OFF. GENERATOR RESET PER QRH. UNABLE TO ENGAGE LNAV, VNAV OR AUTO THROTTLES. CORRECTIVE ACTION: FOUND L AOA AND TAT CIRCUIT BREAKER OPEN. INSPECTED WIRING AND RESET C/B. REPLACED LEFT GENERATOR CONTROL UNIT ASDR UIEA2021081401801Idg · faultedR GEN OFF IN FLIGHT. PER QRH TRIED TO RESET BREAKER, BREAKER FAILED TO RE-SET.(<P>REMOVED & REPLACED RT IDG, OPS TEST GOOD PER B767 AMM 24-11-01.</P>)SDR IPXA2021081272684Idg · faultedDIVERSION, NO EMERG DECLARED, A/C LANDED WITHOUT INCIDENT* L GEN DRIVE EICAS ALERT IN CRUISE. FOLLOWED QRH PROCEDURE.DEFERRED IAW MEL 24-00-1-1.AIRCRAFT DID DISPLAY L GEN OIL MSG. DMP C/W, A/C OK FOR SERVICE.R/R LEFT ENGINE IDG IAW AMM 24-11-01. OPS AND LEASDR UIEA2021081201784Idg · inoperativeLH ENGINE IDG INOP(<P>REMOVED AND REPLACED # 1 ENG IDG IAW AMM 24-11-01.</P> / <P>PENDING FOR OPS & LEAK CHECK .</P> / <P>PERFORMED OPS CHK PER AMM 24-11-.</P> / <P>OPS CHK GOOD. NO LEAKS.</P>)SDR NACA2021081000001Idg · leakingRIGHT ENGINE IDG LEAKING OIL FROM OIL FILL PORT DURING OPERATION. DEFERRED PER MEL 24-00-01-01 ON AUG 10 21 @1130 Z CAT B. RELEASED ETOPS 120, MAINT PROCEDUR COMPLIED WITH. PLACARD REPOSITION TO ETOPS 120. REMOVED AND REPLAED RH IDG ADAPTERS IAW AMM 24- LEAK SDR NACA2021081000006Idg · leakingRIGHT ENGINE IDG LEAKING OIL FROM FILL PORT DURING OPERATION. DEFERRED PER MEL 24-00-01-01 ON 10-AUG-2021 @1130Z CAT B. AC RELEASED ETOPS 120, MAINT PROCEDURE COMPLIED WITH. PLACARD REPOSITIONED TO ETOPS 120.SDR NACA2021081000004Control Panel · faultedLEFT GEN CONTROL SWITCH BACKLIGHT IS OUT. REMOVED AND REPLACED GENERATOR CONTROL PANEL IAW AMM 24-22-01. ACCOMPLISHED OPS CHECK FOUND GOOD. PARTS IDENTIFICATION DATA PENDING.SDR ABXA2021810074Idg · faultyIN FLIGHT EICAS MSG "R GEN DRIVE" DISPLAYED WITH DRIVE LIGHT ON DISCONECT SWITCH. DISCONNECTED PER THE QRH PROCEDURE. THE APU WAS DEFERRED AND THE APU GENERATOR COULD NOT BE USED. THE CREW DECIDED TO DIVERT TO KMEM INSTEAD OF CONTIMUING TO KDEN. THE AIRCRAFT LSDR CALA2021080901308Generator · failedLEFT GEN FAILED AT CRUISE.ATTEMPTED 1 RESET AS PER QRH..... FAILED 2ND TIME REPLACED BUS TIE CIRCUIT BREAKER IAW AMM24-22-03. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1631709 SN OFF 6616 IPC REFERENCE # IPC24-22-01-03 BREAKER. REF. M&E # 6616, SHOULD READ RSDR UIEA2021080901754Idg · faultedL GEN OFF EICAS CAUTION MESSAGE, FAILURE WAS ASSOCIATED WITH A LARGE JOLT, POSSIBLE COMPRESSOR STALL @7 MIN INTO FLIGHT EVENT(<P>LP 1247984, ITEM M4: ACCOMPLISHED BORESCOPE INSPECTION OF HPC STAGES I,6,7,12 &13 AND HPT STAGES 1 AND 2 AS PER ATLAS P.P. ENGINEERSDR CALA2021080601273Idg · failedAUTO PILOT AND AUTO THROTTLE DISCONNECT LT GEN DISCONNECT ALSO R ESET GEN REMOVED AND REPLACED LEFT ENGINE IDG PER AMM 24-11-01. NO HELP. INSTALLED IDG WILL NOT PRODUCE ANY VOLTS OR FREQ''S AS WELL. TRIED KNOWN WORKING GCU''S AND SENT SERVICEABLE GCU PER AMM 2SDR FDEA202108051996Gcu · failedDURING CRUISE L GEN DROPPED POWER (ON ELECTRIC SYNOPTIC PAGE) AND L MAIN AC BUS WAS NOT POWERED INTERMITTENTLY. R/I 03AUG21 13:10 CGN U REASON CODE : PREMATURE REMOVAL/INSTALLATION OFF MPN: 756603E POS: P1 SRL: AAA3002714SDR ASAA2021080435700Idg · inoperativeFOLLOW-UP TO #1 IDG CONTINUED FREQUENT SERVICING. REPLACE IDG FOR BENCH CHECK. (#PRI2/ETOPS). GROUNDED - YES. (RESOLVED ON W/O: 1881295 TASKCARD: N/R-00001 ) REMOVED AND REPLACED # 1 IDG REF AMM 24-11-11/401. OPS AND LEAK CHECK GOOD PER AMM 24-11-00-700-802. SSDR I5PA2021080375703Idg · faultyLEFT ENG IDG WAS DEFERRED PER MEL 24-00-02 LP 42681 ITEM 3. REMOVED AND REPLACED LH ENG IDG IAW AMM 24-11-01 P401. OPS CHECK IAW AMM 24-11-00 P503 NORMAL. MEL CLEARED.SDR ASAA2021080335673Idg · leakingFOLLOW-UP TO #1 ENGINE IDG FREQUENT SERVICING, ACCOMPLISH IDG STATIC LEAK CHECK REF B737-9 AMM 24-11-00-700-801. GROUNDED - YES. ACCOMPLISHED STATIC LK CK REF B737-9 AMM 24-11-00. MONITORED PRESSURE FOR 45 MINUTES WITH NO DROP. WITH STATIC CHECK PASS, PERFORMESDR FDEA202108031924Control Unit · malfunctioned03AUG21 MEM OVER NORTH ATLANTIC, ELEC GEN OFF R, STARTED THE APU WITH APU GEN OFF, RESET GEN PER ECL. . APPROX 2.5 LATER, GOT ELEC AC BUS R. RESE THE R BUS TIE PER ECL, RESULTING IN SINGLE GEN OPS. CONF CALL WITH GOC, MOCC AND TECH PILOT AGAIN, USEDSDR YENA2021080500502Generator · failedFLT 334, SFO-BOS. ENG CRUISE PAGE N2 VIB ON ENG #1 SHOWS AMBER XX ; R&R #1 ENG GENERATOR , STATOR ALTERNATOR IAW AMM 73-22-00 OPS CHECK GOOD NO NITS AFTER PART R&R AND ENG RUNSDR YENA2021080200492Idg · leakingETOPS: FLT 324, LAX-JFK. OIL LEAKING FROM # 2 ENG IDG VENT/BREATHER; R & R ENG 2 IDG. LEAK AND OPS TEST GOOD. ALL PARAMETERS OK. NO LEAKS NOTED. REF MM 24-21-51.SDR NACA2021072100001Idg · faultedNR 2 ENGINE IDG POPPED OUT. REMOVED IDG OIL FILTER, FOUND CLEAN AND REPLACED IDG OIL FILTER IAW AMM 24-11-01 & 02, REMOVED AND REPLACED IDG OIL AS PER AMM 12-13-03. PERFORMED EICAS MAINTENANCE MESSAGES READOUT, NO MX MESSAGES RECORDED.SDR HALA2021072100078Idg · failedATB-ELEC IDG 2 OIL LO PR // REMOVED #2 ENG IDG REF A330 AMM 24-21-51.INSTALLED #2 ENG IDG REF A330 AMM 24-21-51, LEAK/OPS CHECK GOOD. OFF P/N 43-2421-9-001 S/N 01946 ON P/N 43-2421-9-001 S/N 02418 DURING EPGS TEST #2 GCU FAILED, R & R GCU REF A330 AMM 24-22-SDR NACA2021072000001Line · looseLEFT GEN DRIVE AND LEFT GEN OFF LIGHTS DURING TAXI. MI 1730Z. RETORQUED LOOSE LINE AT IDG FILTER HOUSING, POPOUT INDICATOR NOT POPPED. SERVICED IDG AND RAN ENGINE WITH OPS AND LEAK CHECK GOODSDR NACA2021071900001Idg · faultedLEFT GENERATOR EICAS MESSAGE ON CLIMBOUT. REMOVED AND REPLACED #1 ENGINE IDG IAW AMM 24-11-01. OPS CHECK NORMAL, LEAK CHECK GOOD. ETOPS GROUND VERIFICATION GOOD. NOTE: REMOVED UNIT TIMES BELOW ARE FOR NAC ONLY, PREVIOUS TIME ON WING UNKNOWN.SDR ASAA2021071535420Oil Cooler · inoperativeREF L/P 60182965 #2 ENG IDG OIL COOLER AND ADG AIR/OIL COOLER REQUIRES REMOVAL AND REPLACEMENT CONTINUE WITH #2 ENG IDG INSTALLATION TEST REF B737-900 AMM 24-11-11 STEP 3(I). GROUNDED - YES. REMOVED AND REPLACED #2 ENG IDG OIL COOLER AND IDG AIR/OIL COOLER IAWSDR ASAA2021071435419Idg · contaminated3 HRS 45 MIN. INTO FLIGHT AT FL 380 THE #2 ENG DRIVEN GENERATOR LIGHT ILLUMINATED THE DRIVE DISCONNECT SWITCH WAS USED TO DISCONNECT THE GENERATURE AND THE APU WAS STARTED AND PUT ON THE BUS. GROUNDED - YES. PERFORMED B737-900 TASK 24-11-11-080-801 FOUND CONTASDR ASAA2021071335353Oil Cooler · faultyFOLLOW-UP TO #1 IDG FREQUENT SERVICING. (#PRI2/ETOPS). GROUNDED - YES. RAN # 1 ENGINE FOR 10 MINUTES, NO LEAKS NOTED ON IDG AND NO LEAKS NOTED FROM DRAIN, REPLACED VENT VALVE AND SERVICE FITTING. CHANGED IDG OIL COOLER, PART EFFECTIVITY VERIFIED REF B737-800 ASDR ASAA2021071135340Oil Cooler · leakingEVIDENCE OF OIL LEAK FROM #2 ENG IDG AIR OIL COOLER. NOTE: OIL LEVEL IS ALSO LOW. GROUNDED - YES. REPLACED THE #2 ENG IDG AIR OIL COOLER, LEAK CHECK GOOD REF B737-900 AMM 24-11-21/401. IDG OIL SERVICED TO FULL REF AMM 12-13-21/301.SDR UIEA2021070901495Idg · faultedON LEFT ENG START, LEFT GEN AUTO DISCONNECT EICAS MSG "L GEN OFF" & L GEN DRIVE".(<P>REMOVED & REPLACED #1 ENG IDG IAW B767 AMM 24-11-01. OPS CHECK GOOD. NO LEAKS NOTED AT THIS TIME.</P>)SDR P5CA2021070700259Switch · brokenLEFT IDG INOP (PUSH BUTTON KORRY SWITCH BROKEN).(<P>TRANSFERRED TO MDDR 149822 IAW MEL 24-00-01-01, CAT B.</P> / <P>REMOVED AND REPLACED L GEN CONTROL SWITCH IAW SWPM 20-24-15. OPS CHECK GOOD. VERIFIED IDG OPERATIONAL IAW AMM 71-00-00. THIS CLEARS DMI 149822. SDR ASAA2021070735297Idg · failed#1 IDG INOP. FOUND NO OIL ON SIGHT GLASS. GROUNDED - YES. R/R ENG #1 IDG REF B737-900 AMM 24-11-11 OPS CHK GOOD REF AMM 24-11-00.SDR GTIA2021070535842Gcu · malfunctionedCOCKPIT LIGHT SHORTING OUT DURING CLIMBOUT. ALL INTERIOR LIGHTS PROGRESSIVELY BECAME WORSE.-R&R GCU1 IAW AMM 24-22-34. OP TEST OF GAPCU IS OK AT THIS TIME.SDR ASAA2021062435184Idg · failedIDG #2 FAIL, IDG #2 MANUALLY DISCONNECTED AS PER CHECKLIST. GROUNDED - YES. DIVERSION TIME 101 MINUTES - R&R #2 IDG IAW B737-800 AMM TASK 24-11-11-400-801. SYSTEM OPS CHECK OKAY. ETOPS GROUND VERIFICATION SUCCESSFUL.SDR FDEA202106241587Gcu · failedAFTER MEL APU ELECTRICAL, TAXI OUT AND TAKEOFF NORMAL. JUST AFTER LIFTOFF MULTIPLE ELECTRICAL AND AVIONICS FAILURES. CAPTAIN AIRSPEED INDICATED 400 KNOTS ALTIMETER WENT TO 40,000 FEET ALL CAPTAIN FLIGHT INSTRUMENTS STOPPED WORKING. F/O AIRSPEED ALSO INDISDR CALA2021062300929Gcu · faultedCREW REPORTS SMOKE IN THE COCKPIT. AFTER INSPECTING MAIN AND FOWARD E/E , DID NOT FIND ANY PHYSICAL EVIDENCE OF DAMAGE. SMELL OF HEAVY ELECTRICAL ODOR AND WHITE SMOKE. APU WAS OFF INITIALLY UPON ARRIVAL TO A/C. A/C WAS ON EXTERNAL POWER RIGHT SIDE WAS ISOLATSDR IXXA20210624041Generator · inoperativeATN7451 ENROUTE KCVG TO KPHX, CREW REPORTS RIGHT ENGINE GENERATOR INOPERATIVE, APU FAILED ALL 3 START ATTEMPTS IN FLIGHT. ATI OPERATIONS QUICK READY HANDBOOK REQUIRES UNSCHEDULED LANDING AT NEAREST SUITABLE AIRPORT. DIVERSION TO KABQ WITH EMERGENCY DECLARATSDR UIEA2021061701378Generator · failedAPU WILL NOT ACCEPT POWER(<P>REMOVED AND REPLACED APU GENERATOR IAW AMM 24-21-01, OPS CHECKS NORMAL @ THIS TIME IAW AMM 24-21-00.</P> / <P>LP 1305924, ITEM M8: REMOVED AND REPLACED APU GCU IAW 24-22-02. PERFORMED OPS CHECKS IAW AMM 24-22-02, OPS CHECKS NORM @ SDR ASAA2021061735110Oil Cooler · leakingDURING WALK AROUND INSPECTION FOUND OIL STREAKS ON INNER COWLING ON BOTH L/H AND R/H ENG. GROUNDED - YES. C/W IDG AIR/OIL COOLER INSPECTION FOR BOTH #1 AND #2 ENG REF B737-900 24-11-21. FOUND BOTH AFT FINS WITH OIL STAINS ON THE #1 ENGINE AND #2 ENGINE. IDG AISDR QR9R20210617003Transformer · warning messageDURING FLIGHT, #2 GENERATOR AMPS FELL TO 10 AMPS.SDR G1IA2021070416015Bearing · failedIN-FLIGHT FAILURE OF L GENERATOR AND MULTIPLE COMPONENTS ASSOCIATED WITH L SIDE AIRCRAFT ELECTRICAL SYSTEM RESULTING IN A PRECAUTIONARY LANDINGSDR HALA2021061500072Gcu · faultedETOPS - ATB - ELECT GEN 2 FAULT//REMOVED AND REPLACED GCU 2 IAW AMM 24-22-34. BITE TEST OK. PERFORMED ENGINE 2 RUN UP. OPS TEST GEN 2 NORMAL. NO FAULLTS NOTED.SDR HALA2021061400071Generator · abnormalDUE TO APU GEN FAULT T/S PER TASK 24-20-00-810-986-A. PERFORM RESISTANCE CHECKS PER THIS TSM TO CONFIRM FAULT PER STEP 4A. IF NO TROUBLE IS FOUND IN THE WIRING CHECKS PLEASE REPLACE APU GEN.
ACCOMPLISHED TSM 24-20-00-810-986-A. RESISTANCE CHECK OF APU GEN PMSDR ASAA2021061235085Oil Cooler · leakingDURING WALK AROUND FOUND SUSPECTED OIL LEAK ON #2 ENGINE IBD AFT INNER COWL. GROUNDED - YES. C/W B737-800 AMM 79-00-00 AND 71-71-00 ENG VENT AND DRAINS INSPECTION FOUND #2 ENG IDG AIR/OIL COOLER LEAKING WITH LARGE OIL STAIN AFT OF COOLER. REMOVED AND REPLACED
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