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 P5CA2020061000189Warning Message · false activationAFTER ENGINE START "L GEN OFF" EICAS MSG. WITH THE LEFT GEN CONT OFF LIGHT ILLUMINATED. ACCOMPLISHED QRH L GEN CONT SWITCH OFF. THEN LEFT GEN OPERATED NORMAL. INFO NOTED FOR FURTHER REPORT IF REC'D. OPS OK REF AMM 24-11-00.SDR Q2SA20200608432Buss · malfunctionedAIRCRAFT GROUNDED. GEN 1 LOSS TRANSFER BUS FAIL ALL INSTRUMENTS OFF EXCEPT F/O PFD. FOUND GEN CONTROL UNIT #1 UNLOCKED AND SLID OUT OF RACK APPROX 3 IN RESECURED #1 GCU AND PERFORMED OPS CK IAW B737-400 AMM 24-21-81-404-007 AND 24-21-81-705-001 ALL CKS GOODSDR UIEA2020060101169Coupler · leakingUPON PDSC IDG OIL LEVEL CHECK FOUND OVERFLOW SERVICE COUPLER LEAKING. TIGHTENED OVERFLOW SERVICE COUPLER IAW AMM 20-11-00/201. PERFORMED ENGINE RUN IAW AMM 71-00-00 AND LEAK CHECKED IAW AMM 71-71-00 AND 24-11-01. NO LEAKS NOTED AT THIS TIME.SDR AALA202005229026Idg · malfunctionedAIRCRAFT WAS NOT GROUNDED: #2 ENGINE DRIVEN GENERATOR SOURCE OFF INDICATION CAME ON DURING TAKEOFF AT 20 KNOTS RESULTING IN AN ABORTED TAKEOFF. REPLACED # 2 ENGINE DRIVEN IDG AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 24-11-11-400-801SDR UIEA2020051901079Unknown · malfunctionedRIGHT GEN OFF ON LANDING(<P>PERFORMED BPCU BITE TEST IAW AMM 24-22-00, PERFORMED ENGINE RUN UP IAW AMM 71-00-00. TEST OK.</P>)SDR UIEA2020051501040Unknown · malfunctionedRT GEN FAILED AFTER NOSE TOUCHED DOWN RECEIVED R AC BUS OFF MSG.(<P>PILOT STATED GOOD RESET ON R ENG GEN DURING TAXI. T/S PER FIM 24-20 FT 801 BPCU BITE. NO FAULTS NOTED, MCC ADVISED OK FOR SERVICE.<BR /></P>)SDR UIEA2020051201008Idg · lowEICAS "LH GEN OFF" ON FINAL APPROACH(<P>SERVICED IDG PER 12-13-03-613-027. PERFORMED FIM 24-20 FT 801. FOUND LAST RUN HIGH FREQ TRIP, IDG PMG WIRING, IDG LOW OIL PRESS, IDG HIGH RISE TEMP. RAN #1 ENG. NO OTHER FAULTS NOTED. OPS CHECK GOOD.</P>)SDR ASAA2020051132716Oil Cooler · leaking#2 ENG IDG AIR/OIL COOLER LEAKING AND IDG OIL LEVEL LOW. GROUNDED - YES. REPLACED THE #2 ENG IDG AIR/OIL COOLER AND SERVICED THE IDG OIL TO FULL. LEAK CHECK GOOD. REF B737-900 AMM 24-11-21/401.SDR ASAA2020051132715Oil Cooler · leakingFOUND EVIDENCE OF OIL LEAKAGE FROM #2 ENGINE IDG AIR/OIL COOLER. GROUNDED - YES. REPLACED #2 ENGINE IDG AIR/OIL COOLER REF B737-900 AMM 24-11-21. LEAK CHECK GOOD.SDR ALGA2020050100241Generator · failedWHILE IN A HOVER PREPARING / BRIEFING TO HOIST RS TO THE WATER FOR TRAINING THE #1 AC GENERATOR FAIL CAUTION LIGHT ILLUMINATED. ALL BRIEFING WAS HALTED AND THE EMERGENCY PROCEDURE CHECKLIST WAS REFERENCED FOR THE CAUTION LIGHT. THE CHECKLIST CALLED FOR A RESSDR ALGA2020042800000Generator · failedAPPROXIMATELY 30 MINUTES AFTER RIG DEPARTURE(WR508/PONTUS)WITH PATIENT ONBOARD, #1 GENERATOR FAILED CAUTION LIGHT WITH ASSOCIATED MASTER CAUTION LIGHT ILLUMINATED. UNABLE TO RESET, DIVERTED TO KGAO (ORIGINAL DESTINATION KMSY WITH AMBULANCE TRANSPORT FOR PATIENSDR 2020FA0000220Bracket · brokenALTERNATOR BRACKET BROKE AND CAUSE ALTERNATOR BELT TO FALL OFF, RESULTING IN LOSS OF ELECTRICAL POWER.SDR FDEA2020041320736Generator · malfunctionedGEN 3 ON MEL. AT GEAR DOWN GOT "GEN 1 OFF" A/C WENT ON EMERGENCY POWER LOST ALL ASSOCIATED SYSTEMS. GEN 1 CAME BACK ONLINE EXITING THE RUNWAY.SDR DALA2020041202238Drain Line · leakingSHIP 7101 - DIV - TO DTW DUE TO LEFT ENGINE OIL QUANTITY DROPPING WITH SLIGHT RISE IN OIL TEMPERATURE. CORRECTIVE ACTION: DTW MAINTENANCE ISOLATED GEARBOX DRAINS AND PERFORMED TEST 6 PART POWER RUN PER AMM 71-00-00 . FOUND OIL LEAKING FROM IDG DRAIN PAD, NO OTSDR ASAA2020040932627Idg · failed#2 GENERATOR WOULD NOT COME ON LINE. GROUNDED - YES. REMOVED AND REPLACED #2 ENG IDG LEAK AND OPS CK NORMAL. REF B737-800 AMM 24-11-11. GROUND VERIFICATION SUCCESSFUL. REF AMM 24-11-00-700-803.SDR UIEA2020040800717Valve · failedSTATUS MESSAGE RIGHT IDG VALVE. REMOVED AND REPLACED THE NR 2 ENGINE IDG AIR OIL COOLING VALVE, PERFORMED MPA IAW AMM 71-00-00-725 NO DEFECTS NOTED.SDR UIEA2020033100576Pressure Switch · faultyAFTER T/O, DURING CLIMBOUT, RECEIVED STATUS MESSAGE, R IDG VALVE. (<P>TRANSFER TO MDDR 126431, MEL 75-21-01-03A, CAT C, 9APR20. PLACARD INSTALLED. C/W MAINT. PROCEDURES.</P><P> LP 1008505-34 - (06APR20) - RSDR UIEA2020032300505Idg · faultyAFTER ENGINE 2 WAS STARTED, FO'S ADI & HSI FLICKERED ON & OFF, ASSOCIATED W/ INTERMITTENT, FO INST XFER STATUS MESSAGE & FLICKERING COCKPIT LIGHTS.(<P>PERFORMED OPERATIONAL TEST OF RH IDG IAW AMM 24-11-00. NOTED AC VOLTAGE BETWEEN 116 AND 126 VOLTS AC, CYCLED SDR ASAA2020032032475Idg · faultyAT FL400FL GEN 1 SOURCE LIGHT OFF BUS BUS AND DRIVE ILLUMINATED. RAN SOURCE OFF THEN DRIVE OFF QRH, DISCONNECTED GEN 1 VIA SWITCH, STARTED APU AND PUT IT ON BUS. GROUNDED - YES. FOUND #I ENG IDG DPI EXTENDED. WHILE PERFORMING DPI CHECK REF 12-13-21-200-802. FOSDR UIEA2020031300443Warning System · false activationINFO ONLY: R GEN OFF EICAS MESSAGE WHILE IN FLIGHT. PERFORMED QRH, NO FURTHER ISSUE DURING FLIGHT.(<P>ACCOMPLISHED BUS PWR CONT UNIT BITE TEST, NO MESSAGES NOTED. SER. RT IDG IAW AMM 24-22-00. NOTE: CREW RAN RT ENG. OPS CHECK NORMAL IAW AMM 71-00-00.</P>)SDR UIEA2020031300437Unknown · malfunctionedDURING BOTH RIGHT AND LEFT ENGINE STARTS, BOTH RIGHT AND LEFT GENERATORS FAILED TO COME ONLINE. ACCOMPANIED WITH EICAS R/L GEN OFF MESSAGES. EXECUTED QRH PROCEDURE FOR BOTH GENS. APU REMAINED ON FOR DURATION OF FLIGHT AS BACKUP GENERATOR SOURCE, DUE TO IRREGULSDR UIEA2020031300445Warning Light · false activationL GEN FIELD LIGHT ON.(<P>PERFORMED OPERATIONAL TEST FOR L GEN IAW AMM 24-11-00. LIGHT EXTINGUISHED. NO FAULTS NOTED, TEST NORMAL.<BR /></P>)SDR HALA2020030900053Pcu · malfunctionedETOPS SIGNIFICANT SYSTEM - APU GEN FAULT. // REMOVED & REPLACED APU GEN IAW HAL A330 TSM 24-23. FAULT REMAINS STILL. WAITING ADDITIONAL PARTS. DELL 111745. ALSO REF TSM 24-20
-00-810-986-A PERFORMED WIRE CHECK BETWEEN GAPCU AND APU GEN PER STEP 4.A.2. ALL CK'SDR ASAA2020030932378Idg · failedDURING DESCENT GEN 1 SOURCE OFF LIGHT ILLUMINATED, FOLLOWED QRH. SOURCE OFF LIGHT WOULD NOT STAY EXTINGUISHED. GROUNDED - YES. FOUND IDG FAULT ON GCU. REMOVED AND REPLACED #1 ENG IDG PER B737-800 AMM 24-11-11. FILTERS ON OLD IDG WERE CLEAN. #1 IDG OPS CHECKS GSDR CALA2020022900556Gcu · disconnectedAC GENERATOR DRIVE SYSTEM DRIVE LIGHT IS ILLUMINATED GEN-2 QRH CHECKLIST FOLLOWED 2 DRIVE DISCONNECTED APU POWER BUS REPLACED # 2 ENGINE IDG PER AMM 24-11-11-400-801 RAN ENGINE ALL SYS OPS CHECK NORNAL ADD EMP:U118147 ROTABLE PARTS CHANGE WAS INDICATED - TT # SDR UIEA2020022870339Line · leakingDURING WALK AROUND FOUND LEAK NEAR # 1 ENG IDG.(<P>FOUND LEAK AT UNION ON TUBE BETWEEN OIL COOLER & IDG PRESSURE RELIEF VALVE, REMOVED AND REPLACED OIL COOLER TUBE I.A.W AMM 24-11-18, PERFORMED ENGINE RUN I.A.W AMM 71-00-00. OPS CHECK GOOD, NO LEAKS NOTED.</P>SDR SIMA202002254001Gcu · inoperativeIDG 2 OIL RAN QRH-C/A-DEFERRED #2 IDG PER MEL 24-5. FOUND IDG 2 DISCONNECTED PER DEFERRAL RECONECCTED IDG 2 IAW AMM 24-21-01. TROUBLESHOT PER FIM TASK 24-21-00-810-812-A. FOUND GCU2 TO BE INOP RAR IAW AMM 24-21-19 OPC GOOD. MEL RESTORED. PERFORMED OPC CHK OF ISDR ASAA2020022422237Electrical Sys · malfunctionedWITH THE APU SUPPLYING ELECTRIC POWER WITH THE APU GENERATOR THE VOLTS AND FREQ DROPPED TO ZERO THEN RETURNED TO NORMAL. GROUNDED - YES. PERFORMED APU GCU BITE REF B737-800 FIM 24-21 TASK 801, NO FAULTS FOUND. ALSO PERFORMED APU BITE WITH CDU REF B737-800 AMM SDR ASAA2020022482246Generator · faultedDURING ATTEMPTED APU START AFTER LANDING. APU FAULT LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED START POWER UNIT REF B737-900 AMM 49-41-71-00-801 & 49-41-71-400-801, APU REMAINED INOP. REMOVED AND REPLACED APU START-GENERATOR. PART VERIFIED REF B73SDR UIEA2020021870269Control Panel · inoperativeR GENERATOR DISCONNECT LIGHT INOP(<P>REMOVED AND REPLACED ELECTRICAL PANEL IAW B767-300 AMM 24-22-01. OPS CHECKED GOOD.</P>)SDR GTIA2020032335110Unknown · malfunctionedDUAL GEN FAULT AND FAILURE. RAT DEPLOYED AND APU STARTED. ECAM ACTIONS COMPLETED.-FOUND IDG OIL LEVELS GOOD IAW AMM 12-13-24. STOWED RAT IAW AMM 29-22-00. RAN ENGINES IAW AMM 71-00-00. OPS CHECK GOOD IAW AMM 24-41-00. NO DEFECTS NOTED. OK FOR CONTINUED SERVICESDR DALA2020022091293Idg · failedSHIP 181 - ATO - AT 15KTS DUE TO #2 ENGINE DID NOT ACCELERATE ABOVE IDLE WHEN THROTTLES ADVANCED. CORRECTIVE ACTION: MAINTENANCE REPORTED NO ENGINE RELATED FAULTS ON EICAS, EEC, PIMU AND WHEN #2 IDG DISCONNECTED ENGINE IMMEDIATELY SPOOLED UP TO NORMAL IDLE SPESDR ASAA2020021422180Oil Cooler · leaking#1 ENG O/B INNER TR SLEEVE SATURATED AND PUDDLED WITH OIL. GROUNDED - YES. FOUND IDG AIR/OIL COOLER TO BE LEAKING. R&R #1 ENG IDG AIR/OIL COOLER PER B737-900 AMM 24-11-21. LEAK CK GOOD.SDR R61A2020021410189Gcu · faultyELECTRICAL POWER LOSS, AVNX MAU 1B FAIL. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R GCU 1.SDR UIEA2020021310232Oil System · lowR IDG VALVE STATUS MSG.(<P>PERFORMED BPCU BITE TEST IAW AMM 24-11-00, FOUND IDG HIGH RISE TEMP MSG ON R GEN POWER SYSTEM. PERFORMED R IDG OIL SERVICING IAW AMM 12-13-03. OPS CHECK GOOD. NO STATUS MSG PRESENT. NO BPCU STATUS MSG PRESENT.</P>)SDR CALA2020021200407Warning Message · illuminatedELEC GEN OFF L EICAS ADVISORY LEFT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL S WITCH OFF AND ENGINE NOT SHUT DOWN. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2431661 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: GENERSDR ASMF20200602005Heat Exchanger · failedCAPTAIN REPORTED THAT DURING LANDING, THE LIGHT ELEC GEN OFF R2 LIGHT TURNED ON. MAINTENANCE PERSONNEL PERFORMED VISUAL INSPECTION DETECTING OIL AND FUEL OVER VARIABLE FREQUENCY STARTER GENERATOR. VFSG FUEL AND OIL HEAT EXCHANGER R2 RT ENGINE WAS REPLACED IASDR ASAA2020020932120Idg · leaking#1 ENG IDG HISTORY OF FREQUENT SERVICING. GROUNDED - YES. REMOVED AND REPLACED #1 ENG IDG REF B737-900 AMM 24-11-11. OPS CHECK GOOD. LEAK CHECK GOOD. REMOVED IDG INSPECTED FOR DEBRIS W/ NO DEFECTS NOTED REF AMM 24-11-11-080-801.SDR AALA2020021109055Generator · faultyAIRCRAFT NOT GROUNDED: AIR RETURNING LAX, AFTER TO GEN L2 EICAS MESSAGE DISPLAYED. ELEC GEN, DRIVE L2.ELEC GEN OFF L2.FOLLOWED CHECKLIST,PROCEDURE AND DISCONNECTED GEN DRIVE. EMERGENCY DECLARED. REMOVED AND REPLACED L2 VFSG IAW AMM 24-21-09.SDR UIEA2020021080209Generator · failedON ENGINE START, ENGINES 1 AND 4, APU QUIT WORKING. SMELL OF ELECTRICAL BURNING AT L5 REPORTED BY FA. POWER WOULD NOT HOLD WITH GPU.(<P>TRANSFERRED TO MDDR 124399 IAW MEL 49-11-01, CAT 'C', DUE 17FEB20. GVI OF APU COMPARTMENT C/W. GEN OF APU CAUSED SMELL PER ASDR CALA2020020800347Control Unit · faultedSUPPORT TASK: MSG 24-30003 AGCU INTERNAL FAULT REFER TO NR LP 9131304. TT: 1704070 MFG P/N(OFF): 756603E MFG S/N(OFF): 0976 ADD EMP:V917662 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1704070 SN OFF 0976 UNIT, GENERATOR OFF 27-2421-9-0001 0976 ON 25-2422-9-000SDR Q2SA202002054425Circuit Board · failedAIRCRAFT GROUNDED. SOURCE OFF LT ON #1 GEN @ FL 380. RAN QRH - GEN WOULD NOT RESET. DIVERTED ON APU GEN ONLY. #2 GEN ON DEFFERRAL. CREW DECLARED EMERGENCY. REMOVED AND REPLACED #1 GCB (C801) PER AMM B737-800 AMM 24-21-41. OPERATIONAL CHECKS GOOD.SDR UIEA202001310151Warning Light · false activationGEN FIELD MAIN RESET (L) FIELD OFF LIGHT ILLUMINATED. RESET L GEN CONTROL SWITCH, THEN RESET FIELD OFF (GEN FIELD) SWITCH. FIELD OFF LIGHT EXTINGUISHED. PERFORMED L GEN FIELD OPS CHECK IAW AMM SUBTASK 24-22-04-714-015. OPS CHECKED OK.SDR UIEA2020013100157Warning Message · false activationEICAS MSG "HYD GEN VALVE", PERFORMED FIM 24-25 FAULT TREE 804. HYD GEN VALVE MESSAGE CLEARED. THEN PERFORMED HYD MOTOR GEN OPS CHECK IAW AMM 24-25-00-715-001. MESSAGE DOES NOT COME BACK. OPS CHECKED OK.SDR VNAA2020012751101Generator · malfunctionedBUS 2 FAILED IN FLIGHT WITH GEN 2 DASHED OUT. MAINTENANCE DEFERRED #2 GENERATOR. MAINTENANCE PERFORMED OPERATIONAL CHECK OF IDG2 WITH NO FAULTS NOTED, OPS CHECKS GOOD. AND CLEARED THE DEFERRAL. / "SDR UIEA2020012400116Unknown · unknownRIGHT ENG GENERATOR INOPERATIVE. RT IDG DISCONNECTED. PERFORMED ENGINE IDLE RUNS TWICE IAW AMM 71-00-00 AND COMPLETED OPERATIONAL TESTS OF RT IDG IAW AMM 24-11-00, NO DEFECTS NOTED. IDG OPS CHECKED GOOD.SDR ASAA2020012413935Idg · failedON TAXI OUT #1 GEN FELL OFF LINE, NO RESET. GROUNDED - YES. PERFORMED B737-800 FIM 24-21 TASK 821, #1 GCU FAULTED #1 IDG. DISCONNECTED #1 IDG. REMOVED AND REPLACED #1 IDG PER B737-800 AMM 24-11-11 OPS AND LEAK CHECK GOOD.SDR FDEA2020012180166Idg · inoperativeNR 2 GENERATOR AND AC BUSS NR 2 FAILED. COMPLIED WITH ECAM AND QRH. ON ARRIVAL; DEPARTING CREW NOTIFIED MTC OF ELEC PROBLEM, GROUND CREW UNABLE TO OPEN CARGO DOORS DUE TO NO EXTERNAL POWER. FOUND FAULT MESSAGE WHEN DOING BITE CHECK OF GCU 2 - DP TRIP.SDR ASAA2020012161907Warning Light · intermittentGEN 2 DRIVE LIGHT INTERMITTENT. GROUNDED - YES. CHANGED NR 2 IDG FILTER AND OIL IAW CARD NUMBER 78424000. NO DEBRIS FOUND. PERFORMED FIM 24-11 TASK 802 GENERATOR CONTROL UNIT BITE PROCEDURE, BITE CHECK PASSED. OPERATIONAL TEST FOR NR 2 IDG IAW AMM 24-11-00-700SDR UIEA2020012100104Gcu · failedR ENG GEN FIELD LIGHT AT P6 BPCU SHOWS OVER VOLT TRIP. REPLACED R GCU IAW AMM 24-22-02. OPS CHECK NORMAL.
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