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.
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
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 AALA202308026491Apu · underservicedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO PBI DUE TO THE #1 ENGINE ELECTRICAL GENERATOR FAULT WHICH WOULD NOT RESET ALONG WITH THE APU AUTO SHUTDOWN IN FLIGHT. THE AIRCRAFT LANDED SAFELY AT PBI WITHOUT FURTHER INCIDENT. **ORSDR NACA2023061500002Unknown · unknownDURING TAXI IN APU FAULTED TWICE, NO START. PERFORMED APU BITE TEST PER FIM 49-11 FT 958, APU RUNS OK AT THIS TIMESDR NACA2023061400001Module · failedAPU NO BLEED PRESSURE. REMOVED AND REPLACED FLOW SENSING MODULE PER AMM 49-53-08 OPS AND LEAK CHECK GOOD, COMPONENT NOT KNOWN TO TRAX.SDR DALA2023060704646Unknown · unknownSHIP 9543 -DIV/DE- THE CREW DIVERTED THE AIRCRAFT TO MEM AND DECLARED AN EMERGENCY ON APPROACH DUE TO THE RIGHT GENERATOR FAILING AND THE APU ALREADY ON MEL DEFERRAL. CORRECTIVE ACTION: MAINTENANCE REPLACED THE APU ECU, THE RIGHT PCDU, THE LEFT & RIGHT BUS TIESDR UIEA2023060540563Switch · unknownREMOVE APU "LOW OIL LEVEL SWITCH" AND REPLACE WITH APU "OIL QUANTITY TRANSMITTER"Â P/NÂ 8TJ99GGE1 AS PER TASK CARD 49-999-00-01(<P>REMOVED LOW OIL LEVEL SWITCH AND REPLACED WITH APU OIL QTY TRANSMITTER AS PER B767 AMM 49-94-04. OPS CHECK OK, NO LEAKS FOUND ASDR I5PA2023060388801Surge Valve · faultyFLT NO: N/A (MX) ESI - APU PNEUMATIC FUNCTIONS INOP, REPLACED APU SURGE VALVE PER AMM 49-53-01. OPS CHK NORMAL.SDR DALA2023060504484Unknown · unknown(LOG 2791630) UPON REMOVAL OF APU FOUND RH SIDE OF APU COMPARTMENT AIR INLET CUTOUT AFT ANGLE EXFOLIATED. REMOVED AND REPLACED ANGLE AND INSTALLED. ALL WORK PERFORMED IAW BOEING 737-800 SRM 53-80-13-1A-2 AND BOEING 737-800 SRM 51-40-02-0G.SDR AALA202306018898Apu · odorAIRCRAFT WAS GROUNDED: WET DOG / MUSTY SMELL ON TAXI OUT AND ALSO ON DESCENT BELOW 10000 FEET. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. ** SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR AALA202307284447Motor · leakingAIRCRAFT WAS GROUNDED: SMELLY SOCKS ODOR ON TAKE OFF AND CLIMB OUT. ODOR DISSIPATED THEN RETURNED AT THE GATE. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. ** SUPPLEMENTAL REPORT FOR AALA202305314447: MAINTENANCE FOUND EVIDENCE OF HYDRAULIC FLUID ONSDR AALA202307282027O-Ring · leakingAIRCRAFT WAS GROUNDED: SMELLY SOCKS ODOR ON TAKE OFF AND CLIMB OUT. ODOR DISSIPATED THEN RETURNED AT THE GATE. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. ** ORIGINAL REPORT WAS AALA202305314447** MAINTENANCE FOUND EVIDENCE OF HYDRAULIC FLUID ON THSDR AALA202305314447Unknown · unknownAIRCRAFT WAS GROUNDED: SMELLY SOCKS ODOR ON TAKE OFF AND CLIMB OUT. ODOR DISSIPATED THEN RETURNED AT THE GATE. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. ** SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR AALA202307288043Apu · odorAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED DIRTY SOCK SMELL THROUGH ENTIRE CABIN IN FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT FOR AALA202305308043: MAINTENANCE ACCOMPLISHED SMOKE ODOR FUME TROUBLESHOOTING TASK SDR AALA202305308043Apu · odorAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED DIRTY SOCK SMELL THROUGH ENTIRE CABIN IN FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR AALA202306219355Lubrication Unit · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT FLIGHT CREW REPORTED AN OILY OR DIRTY SMELL IN THE FLIGHT DECK.. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT FOR AALA202305259355: MAINTENANCE FOUND THE APU OIL LUBE MODULE LEAKING AND REPSDR AALA202305259355Apu · odorAIRCRAFT WAS GROUNDED: DURING DESCENT FLIGHT CREW REPORTED AN OILY OR DIRTY SMELL IN THE FLIGHT DECK.. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR AALA202305253834Apu · odorAIRCRAFT WAS GROUNDED: STRONG DIRTY SOCK SMELL THROUGHOUT THE CABIN DURING DESCENT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED. (OPEN)SDR I5PA2023051988802Unknown · unknownFLT NO: MGE 300 (EVENT) - APU IN-FLIGHT START FAILD 3X. PERFORMED FIM 49-11 FT 846. FOUND STARTER CIRCUIT FAULT DURING BITE. PERFORMED FIM 49-11 FT 850. FOUND NO POWER AT RELAYK10010. DURING WIRING CHECK PER WDM 24-32-41, FOUND TRIPPED APU TRU CIRCUIT BREAKER SDR AALA202306269481Apu · odorAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL/ODOR REPORTED BY CABIN CREW AT THE TOP OF DESCENT INTO BJX. ODOR WAS STRONG THROUGH OUT CABIN AND COCKPIT UPON GATE ARRIVAL. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU AFTER FINDING HEAVY OIL CONTAMINATION INSDR AALA202305194630Cooling Fan · leakingAIRCRAFT WAS GROUNDED: DURING ALL PHASES OF FLIGHT, DIRTY SOCK SMELL ON AND OFF IN CABIN AND FLIGHT DECK, VERY STRONG ON TAXI IN. MAINTENANCE REPLACED THE APU OIL COOLING FAN PER AMM 49-52-51 AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK.SDR AALA202305199481Apu · odorAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL/ODOR REPORTED BY CABIN CREW AT THE TOP OF DESCENT INTO BJX. ODOR WAS STRONG THROUGH OUT CABIN AND COCKPIT UPON GATE ARRIVAL. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU AFTER FINDING HEAVY OIL CONTAMINATION INSDR KCSA2023051516Duct · looseRANCID ODOR FROM PACKS. PACK INLET & EXHAUST AREA INSP, NO ABNORMALITY PACK, OPS CHK NORMAL IAW AMM 21-51-00 REV 98. DURING APU AREA INSP, FOUND APU OIL COOLER DIRTY & DUSTY. APU OIL COOLER PERFORMED IAW AMM 49-27-09 REV 98. DURING INSP APU DUCT, FOUND FLEXIBSDR UIEA2023051500459Unknown · unknownAPU FIRE ON EICAS, QRH PROCEEDURE PERFORMED SUCCESSFULLY, RETURN TO BLOCK.(<P>PERFORMED INSPECTION PER AMM 49-11-00-206-029, NO EVIDENCE OF APU FIRE OR DAMAGE NOTED.</P>)SDR AALA202306267794Fuel Control · leakingAIRCRAFT WAS GROUNDED: BOTH PILOTS SMELLED TOXIC FUMES- MUSTY ODOR FOR MOST OF FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **ORIGINAL REPORT WAS AALA202305156778** MAINTENANCE FOUND THE APU OIL FILLER CAP LEAKING OIL AND THE APU FUEL CONTROSDR AALA202305156778Apu · odorAIRCRAFT WAS GROUNDED: BOTH PILOTS SMELLED TOXIC FUMES- MUSTY ODOR FOR MOST OF FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR UIEA2023050900442Unknown · unknown#2 ENG PNEU DUCT SUPPORT ROD BOLT MISSING 12 O'CLOCK POS FWD OF PRV .(<P>INSTALLED BOLT #2 ENG PNEU DUCT AT 12 O'CLOCK POS FWD OF PRV PER AMM 20-11-0</P>)SDR UIEA2023050900443Surge Valve · unknownAPU SURGE VALVE PNEUMATIC DUCT ASSY RUBBER COUPLING IS DAMAGED(<P>REMOVED AND REPLACED APU SURGE VALVE PNEUMATIC DUCT ASSY PER AMM 44-53-01-404-010. LEAK CHECK OK </P>)SDR NACA2023050400001Unknown · unknownAPU FAULT. DEFERRED APU IAW MEL 49-11-01A CATCSDR ASAA2023050343162Unknown · unknownAPU FAULT LIGHT ILLUMINATED WHEN ATTEMPTING TO START THE APU AFTER LANDING. GROUNDED - YES. FOUND MAINT MSG 49-41254 START CONVERTER UNIT SHOWS START SYS INOP. PERFORMED B737-9 IFIM TASK 49-40-00-810-818, PERFORMED 5 SUCCESSFUL STARTS OF APU AND MESSAGE DID NOSDR DALA2023050503508Unknown · unknown(LOG 4759244) AFTER STARTING ENGINE 2 STRONG GASSY ODOR FILLED COCKPIT AND CABIN. PERFORMED PACK BURN OUT PROCEDURE PER B737 AMM 21-00 AND REPLACED RECIRC FILTERS PER B737 AMM 21-25. RAN PACKS WITH APU BLEED AND BOTH ENG BLEEDS WITH NO ODOR PRESENT THROUGHOUT SDR AALA202306133454Apu · odorAIRCRAFT WAS GROUNDED: DESCENDING THROUGH ABOUT 15,000 FEET, A DIRTY MUST SOCK SMELL WAS NOTED. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU . **SUPPLEMENTAL REPORT FOR AALA202305023454: MAINTENANCE ACCOMPLISHED ENHANCED DECONTAMINTION OF THE ENVIRONSDR AALA202305023454Apu · odorAIRCRAFT WAS GROUNDED: DESCENDING THROUGH ABOUT 15,000 FEET, A DIRTY MUST SOCK SMELL WAS NOTED. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU . **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR ASAA2023042543028Sensor · faultyPER MAINT CONTROL SCOTT CSS FAIL START ATTEMPT AT FL 410 W/ FAULT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED BITE CHECK OF APU REF B737-800 AMM 49-61-00 - FOUND STOPS CHECK NORMAL. PER TECH SERVICE REMOVED AND REPLACED INLET TEMP SENSOR REF B737-800 AMM 49-6SDR ASAA2023042543027Sensor · faultyFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL380. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED AT FL320. GROUNDED - YES. REF B737-800 FIM 49-40 TASK 801, REPLACED APU AIR INLET TEMP SENSOR (AMM 49-61-31)) AND AIR INLET PRESSURE SENSOR (ASDR ASAA2023042042952Unknown · unknownON PREFLIGHT FOUND FUEL DRIPPING FROM APU AREA AND ACCUMULATION ON GROUND. GROUNDED - YES. UNION AT FLOW DIVIDER VERIFIED LOOSE. SECURED UNION B-NUT,OPS CHECK GOOD REF B737-900 AMM 49-11-00-860-801 FOR 5 MINS NO LEAKS NOTED.SDR AALA202304211306Unknown · unknownAIRCRAFT WAS GROUNDED: MILD/MODERATE TRANSIENT DIRTY SOCK SMELL AFTER TAKEOFF IN FRONT HALF OF AIRPLANE. DISSIPATED AFTER 2-3 MINUTES. DID NOT RE-OCCUR IN FLIGHT. REOCCURRED ON TAXI-IN. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)SDR ABXA2023041960Unknown · unknownGROUND CREW ADVISED FLIGHT CREW OF APU FIRE. APU FIRE WARNING DID NOT INDICATE FIRE. FLIGHT CREW DISCHARGED BOTH FIRE BOTTLES AND CALLED AIRPORT FIRE DEPT. MAINTENANCE GROUNDED AIRCRAFT. MAINTENANCE INSPECTED APU EXHAUST, OIL IS PRESENT BUT NOT EXCESSIVESDR DALA2023042003115Unknown · unknownAIRCRAFT 3571, APU FAILED COLD SOAK START, 3 ATTEMPTS WERE MADE AT 38000 FT, EGT PEAK 015, STATIC AIR TEMP -63. CORRECTIVE ACTION: DEFERRED APU PER MEL 49-10-01A. REPLACED APU IGNITOR PLUG, AND APU FUEL CONTROL. (LP 8578605)SDR JJBA20230417008Unknown · unknownSMOKE ODOR FROM APU BLEED DURING TAKE OFF. PERFORMED OPERATIONAL CHECK OF APU. COULD NOT DUPLICATE. SUSPECT SMELL WAS ENGINE EXHAUST IN BLEED.SDR DALA2023041503002Unknown · unknownAIRCRAFT 3125, THE AIR QUALITY OFF THE PACKS WAS SUBSTANDARD, MUSTY SMELL. IN ADDITION, THE FLIGHT ATTENDANTS REPORTED THAT THE CABIN WAS HOT ALTHOUGH INDICATED TEMP WAS 68F. QRH 2.47 DIRECTED HOT AIR SWITCH OFF. THIS HELPED CABIN TEMP AND ALSO, WE COULD NO LOSDR AALA202304147485Starter · leakingAIRCRAFT WAS GROUNDED: FUMES / MUSTY SMELL N THE CABIN NEAR SEAT ROWS 5, 6 AND 7 OCCURED DURING DESCENT. MAINTENANCE FOUND THE APU STARTER LEAKING OIL AND REPLACED IT PER AMM 49-42-51. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.SDR UIEA2023040300309Lead · unknownENG #1 LOWER HIGH TENSION LEAD DAMAGED.(<P>REMOVED & REPLACED ENG #1 LOWER HIGH TENSION LEAD IAW 767-300 AMM 74-21-02. PERFORMED AUDIBLE TEST FOR ENG #1, AUDIBLE TEST OK IAW AMM 74-00-00</P>)SDR UIEA2023040300306Unknown · unknownECM 2023P-168 N1997A ENG #1 ESN #702928 IS EXPERIENCING HIGH FAN VIBRATION. A TRIM BALANCE IS REQUIRED TSLV 10,240 CSLV 3,348.(<P>PERFORMED LH ENG RUN UP PER AMM 71-00-00. INCREASED N2 POWER TO 99% & FAN VIB DID NOT EXCEED 0.9. NO DISCREPANCY NOTED. OPS CHECK SDR CALA2023040301009Sensor · unknownAPU SHUTDOWN EICAS ADVISORY APU AUTO-SHUTDOWN HAS OCCURRED. APU SURGE BLEED SYSTEM SENSORS FOUND COMPLETELY CLOGGED. THE CIFFERELLO ADDITIONAL MESH FILTER SCREEN LOCATED AT THE INLET PRESSURE CLEARED BLOCKAGES FROM PNEUMATIC LINES AND CLEANED THE INTAKE 40-11-SDR DALA2023040502636Unknown · unknownSHIP 693 SMOKEY HAZE IN AFT CABIN WITH ELECTRICAL SMELL, CORRECTIVE ACTION: FOUND APU BATTERY TO BE SOURCE OF SMOKE AND SMELL. REPLACED APU BATTERY AND CHARGER PER B757 AMM 24-31. TESTS GOOD. C/W NO GO ODI PROCEDURES. OK FOR SERVICE. (8568626)SDR ASAA2023033142696Generator · lowAPU FAILS TO START, BITE CHECK SHOWS MAINT MESSAGE 49-41245 SCU. GROUNDED - YES. REMOVED AND REPLACED APU STARTER GENERATOR IN REF TO B737-800 AMM 49-41-21.SDR ASAA2023033042697Unknown · unknownAFTER LANDING 1ST ATTEMPTED APU START FAIL LIGHTS ILLUMINATED, NO START. 2ND ATTEMPT APU START FINE. GROUNDED - YES. COLD SOAK START PASSED.SDR CALA2023032700895Pressure Switch · unknownAPU FAILED TO START DRAINED THEN FILLED APU GEARBOX OIL PER AMM 12-13-31. REMOVED AND REPLACED LOW OIL PRESSURE SWITCH IAW AMM 49-94-22. LEAK/OPS CHECK NORMAL. PARTS USED: M1103P0911-02,QTY :1SDR AALA202304037693Apu · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED A DIRTY SOCK SMELL DURING THE LAST 5 MINUTES OF FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU AFTER FINDING EVIDENCE OF OIL LEAKS. ** SUPPLEMENTAL REPORT FOR AALA202303247693: MAINTENANCE REPLASDR AALA202303247693Apu · leakingAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED A DIRTY SOCK SMELL DURING THE LAST 5 MINUTES OF FLIGHT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU AFTER FINDING EVIDENCE OF OIL LEAKS. ** SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)SDR GTIA2023032337059Unknown · unknownVERY STRONG FUME EVENT ON FINAL APPROACH. DIRTY SOCK SMELL OBSERVED BY FLIGHT CREW, FOWARD FA AND FIRST FIVE ROWS OF THE CABIN. ONE FLIGHT ATTENDANT SAID SHE SMELLED FUMES OFF AND ON DURING THE FLIGHT. PACK ONE WAS OFF DUE TO PREVIOUS DMI. -REF TSM 5-50-00-810
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