JASC 4950
Service difficulty reports · 951
Reports filed under 4950 · APU Bleed Air 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 = '4950' 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 = '4950' 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 HNAA2017112800383Bleed Air Sys · smokeAPU BLEED CREATES A SMOKE IN THE CABIN.SDR AALA201711239002Cooling Fan · odorAIRCRAFT WAS GROUNDED. CABIN CREW REPORTED STRONG FUMES IN THE AFT PART OF THE CABIN ON FINAL APPROACH. NO EMERGENCY DECLARED. LANDING UNEVENTFUL. ACCOMPLISHED JOB CARD 26L00021001 FOR CABIN AIR QUALITY AND FOUND APU TO BE SOURCE. REPLACED APU OIL COOLISDR YENA201711140934Bleed Air Sys · odorDIRTY SOCK ODOR AT ABOUT 2500 FT. PERFORMED ECS DECONTAMINATION PROCEDURE IAW AMM 21-00-00. ALSO COMPLIED WITH INFO NOTICE 2017-T015B SECTION C, AND SECTION C TABLE 1. ODOR PRESENT WHEN USING APU BLEED. NO ODOR PRESENT WITH THE NR 1 & 2 ENGINES BLEED SOURCSDR UIEA2017102602112Duct · damagedAFT CARGO BS 1285 HEATING DUCT IS DAMAGED. A NEW FIRE DUCT WAS INSTALLED.SDR UIEA2017102602116Blanket · tornAFT CARGO FWD WALL, BS 1079.20 APU DUCT BLANKETS TORN. REMOVED AND REPLACED THE APU DUCT BLANKETS.SDR UIEA2017102602119Seal · tornFWD CARGO BAY , ONE DUCT SEAL FOUND TORN. A NEW SEAL WAS INSTALLED.SDR UIEA2017102602123Coupling · backed outAPU SURGES WITH ONE PACK ON. PERFORMED FIM 36-10-00, AND 49-17-00. FOUND A LARGE AIR LEAK AT THE FWD PNEUMATIC GROUND AIR CONNECTOR CHECK VALVE. COUPLING HAD BACKED OFF AND THE CHECK VALVE HAD ROTATED FROM ALIGNMENT SLOTS. REINSTALLED THE CHECK VALVE AND SDR UIEA2017102302000Control Valve · malfunctionedBLEED DUCT PRESS SURGES FROM 0-20 PSI WITH APU SUPPLYING BLEED AND ONE PACK ON. REMOVED AND REPLACED SURGE CONTROL VALVE IAW AMM 49-50-30, LEAK CHECKED , NO LEAKS NOTED.SDR COZA20171017116Control Valve · intermittentAPU DRAGS DOWN DURING MAIN ENGINE START. REPLACED APU PROPORTIONAL CONTROL VALVE. ENGINE START AND APU OPERATIONAL CHECKS NORMAL.SDR COZA20171004114Control Valve · leakingUNSTABLE CABIN PRESSURIZATION. PERFORMED FUNCTIONAL CHECK OF CABIN PRESSURIZATION CONTROLLER WITH NO FAULTS FOUND. FOUND RESIDUAL PRESSURE IN THE BLEED AIR MANIFOLD WITH APU NOT RUNNING. REPLACED THE APU LOAD CONTROL VALVE.SDR AALA20170929002Plenum · crackedAIRCRAFT WAS IN BASE MAINTENANCE. CRACKED AUXILIARY POWER UNIT INLET DUCT PLENUM ASSEMBLY. REMOVED AND REPLACED PLENUM PANEL PER SRM 53-80-30-01, AARD 51-20-01-1, AND AMM 49-15-15.SDR AALA20170929001Frame · crackedAIRCRAFT WAS IN BASE MAINTENANCE. CRACKED AUXILIARY POWER UNIT INLET DUCT PLENUM ASSEMBLY FRAME. REPLACED PLENUM FRAME PER SRM 53-80-30-01 AND AMM 49-15-15.SDR REXA2017092701036Duct · looseJUST AFTER ROTATION, APU FIRE WARNING ACTIVATED. RAN QRH, INDICATION PERSISTED FOR A FEW MINUTES AFTER BOTTLE DISCHARGE. APU FIRE FAIL & APU FIRE INDICATIONS PERSISTED INTERMITTENTLY THROUGHOUT FLIGHT. FOUND LOOSE DUCT TO UPPER ATTACHMENT OF APU LCV. REASDR UIEA2017092501854Module · malfunctionedAPU, NO BLEED AIR. REMOVED AND REPLACED FLOW SENSING MODULE, OPS CHECKED NORMAL IAW AMM 49-53-08.SDR UIEA2017092501813Duct · crackedAPU SUPPLY DUCT AT LEFT WHEEL WELL BETWEEN BS 1024 AND 1043 IS CRACKED AT WELD POINT WHERE LINE IS CONNECTED. REMOVED AND REPLACED APU SUPPLY DUCT. LEAK CHECKED GOOD IAW AMM 36-11-01.SDR UIEA2017092101760Control Valve · malfunctionedAPU PUT OUT LOW PNEUMATIC PRESSURE 10 PSI. REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01. OPS CHECKED NORMAL.SDR YENA201709020730Fan · failedFLIGHT ATTENDANT SMELLED A DIRTY SOCK ODOR AFTER APU BLEED AIR TURNED ON. THE ODOR WAS DETECTED RIGHT AFTER TAKEOFF AND 1:36 HOURS INTO FLIGHT, DESCENDING +20 UGH 200 HP. BLEED VALVE OPEN, DIRTY SOCKS ODOR REPEATED 230-190. CONTINUED DURING FINAL APPROACH PSDR YENA201709020729Condenser · contaminatedFLIGHT ATTENDANT SMELLED A DIRTY SOCK ODOR AFTER APU BLEED AIR TURNED ON. THE ODOR WAS DETECTED RIGHT AFTER TAKEOFF AND 1:36 HOURS INTO FLIGHT, DESCENDING +20 UGH 200 HP. BLEED VALVE OPEN, DIRTY SOCKS ODOR REPEATED 230-190. CONTINUED DURING FINAL APPROACH PSDR YENA201709020728Condenser · contaminatedFLIGHT ATTENDANT SMELLED A DIRTY SOCK ODOR AFTER APU BLEED AIR TURNED ON. THE ODOR WAS DETECTED RIGHT AFTER TAKEOFF AND 1:36 HOURS INTO FLIGHT, DESCENDING +20 UGH 200 HP. BLEED VALVE OPEN, DIRTY SOCKS ODOR REPEATED 230-190. CONTINUED DURING FINAL APPROACH PSDR P5CA2017080200249Bleed Air Sys · inadequateNO DUCT PRESSURE WITH APU RUN. RESTARTED APU IAW AMM 49-11-00, RECOVERED APU BLEED.SDR P5CA2017080200248Valve · failedAPU BLEED AIR INSUFFICIENT TO RUN A PACK ON THE GROUND, 8 PSI DUCT PRESSURE. REMOVED AND REPLACED THE SURGE CONTROL VALVE AND PERFORMED AN APU OPERATIONAL CHECK. OK IAW AMM 49-53-01.SDR UIEA2017072401295Valve · failedAPU AUTO SHUT DOWN AFTER PACKS TURNED OFF. REMOVED AND REPLACED APU SURGE VALVE IAW AMM 49-53 01. OPS CHECKED GOOD.SDR UIEA2017072401284Duct · damagedAPU AIR SURGE RUBBER BLEED DUCT HAS A HOLE. REPLACED APU SURGE BLEED RUBBER DUCT IAW AMM 49-10-00 OPS CHECKED OK, NO LEAKS.SDR AALA201707269004Cooling Fan · malfunctionedAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A STRONG OBNOXIOUS ODOR WITH APU ON THROUGHOUT FLIGHT DECK AND CABIN. MAINTENANCE FOUND APU AIR INTAKE CONTAMINATED WITH DIRT AND FLUIDS. MAINTENANCE FOUND COOLING FAN LEAKING ON APU, REPLACED COOLING FAN PER AMM 49-SDR AALA201707139008Oil System · leakingODOR DURING TAKEOFF & EARLY CLIMB ALSO ON DESCENT. FOUND APU TO BE SOURCE OF ODOR. APU HAS INTERNAL OIL LEAK, REMOVED AND REPLACED APU.SDR AALA201707039021Bleed Air Sys · fumesAIRCRAFT WAS GROUNDED. FUMES REPORTED IN CABIN AND COCKPIT. ITEM DEFERRED FOR FERRY TO CLT. MAINTENANCE FOUND SOURCE TO BE APU BLEED. ACCOMPLISHED JOB CARDS; CABIN AIR QUALITY, APU SMELL IN CABIN AND ECS DECONTAMINATIONSDR UIEA2017063001076Control Valve · failedAPU REVERSE FLOW SHUTDOWN. REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 59-53-01. NO DEFECTS NOTED AT THIS TIME. OPS CHECKED GOOD.SDR UIEA2017060800958Clamp · corrodedAPU LT AIR SURGE BLEED DUCT CLAMPS ARE CORRODED. APU SURGE BLEED DUCT CLAMP REPLACED IAW MM 49-53-01.SDR UIEA2017051800814Bellows · deterioratedAPU COOLING DUCT BELLOWS AFT OF COOLING FAN FOUND DETERIORATED. APU COOLING DUCT BELLOWS AFT OF COOLING FAN REMOVED AND REPLACED AS PER AMM 49-51-01, REV 120.SDR YENA201706060473Apu · odorPERFORMED GROUND AIR START DUE TO DEFERRED APU DIRTY SOCK ODOR. ONCE THE NR 2 ENGINE WAS STARTED, THE DIRTY SOCK ODOR RETURNED IMMEDIATELY. PERFORMED A CROSS BLEED START. THE ODOR CONTINUED. ODOR APPARENT THROUGHOUT THE WHOLE OF THE AIRPLANE, BUT FLIGHT ATTENSDR HALA2017060600140Warning Light · false activationAPU BLEED FAULT ECAM ON INITIAL START. RECYCLED APU BLEED SWITCH O CHANGE. // ACCOMPLISHED TSM TASK 49-62-00-810-841-A. OPS CHECK OF THE APU IAW AMM 49-00-00-710-801, OK. TEST OF THE APU BLEED VALVE OK IAW AMM 49-51-51-710-803-A, OK. CYCLED APU BLEED VALVE SWISDR UIEA2017053000869Bleed Valve · damagedAPU SURGE VALVE FILTER ASSY MISSING A SPRING. REMOVED AND REPLACED APU SURGE BLEED VALVE IAW AMM 49-53-01. OPS CHECKED GOOD.SDR UIEA2017051500785Spring · missingAPU SURGE VALVE FILTER ELEMENT SPRING MISSING. INSTALLED THE SPRING IAW AMM 49-53-06.SDR P5CA2017050800130Duct · tornAPU SURGED, BLEED DUCT. FLEXIBLE DUCTING FOUND TORN. REMOVED AND REPLACED THE APU SURGE BLEED DUCT FLEXIBLE DUCTING IAW AMM 49-53-01, REV 120, CARRIED OUT A LEAK CHECK IAW AMM 49-11-00, REV 120, FOUND SATISFACTORY.SDR UIEA2017041900606Bleed Valve · malfunctionedAPU BLEED VALVE EICAS MESSAGE DISPLAYED. REMOVED AND REPLACED APU BLEED VALVE IAW AMM 36-11-10, OPS CHECK NORMAL.SDR UIEA2017041900604Shutoff Valve · unknownAPU BLEED VALVE EICAS MESSAGE. REMOVED AND REPLACED THE APU AIR SUPPLY SHUTOFF VALVE IAW AMM 36-11-10 AS PRECAUTION , OPS CHECKED NORMAL.SDR UIEA2017041900607Relay · malfunctionedINTERMITENT EICAS APU BLEED VALVE. TROUBLESHOT IAW WDM 36-11-41 AND SUSPECT THE RELAY K3 APU AIR SUPPLY VALVE. CONTROL RELAY REMOVED AND REPLACED AND PERFORMED OPS CHECK IAW 49-11-00 AND APU AIR ELECTRIC OK FOR CONTINUED SERVICE.SDR UIEA2017041100540Shutoff Valve · malfunctionedAPU BLEED VALVE AFTER ENGINE START DURING TAXI. REMOVED AND REPLACED THE APU AIR SUPPLY SHUTOFF VALVE IAW MM 36-11-10. OPS CHECKED GOOD.SDR HALA2017030700052Bleed Valve · faultedETOPS, DURING START INTERMITTENT APU BLEED FAULT AT ENGINE SHUT DURING BLOCK IN AGAIN OBSERVED APU BLEED FAULT. REPLACED APU BLEED VALVE PER AMM 49-51-51 OPS CHECK LEAK CHECK OK OK FOR SERVICE VALVE, LOAD ASS OFF 33-4950-9-0002 01614 ON 33-4950-9-0002 01883SDR UIEA2017030200255Duct · tornDURING AN APU INSPECTION, FOUND PNEUMATIC DUCT, FLEXIBLE DUCT FROM APU TO AIR SUPPLY DUCT TORN AND AFT CLAMP BROKEN. REPLACED THE FLEXIBLE PNEUMATIC DUCT ASSY AND CLAMPS ON APU AIR SUPPLY DUCT IAW AMM 49-53-01. LEAK AND OPERATIONAL CHECKED GOOD.SDR ASAA2017022219911Sensor · failedLOW DUCT PRESSURE WITH APU BLEED ON. ACFT GROUNDED. REMOVED AND REPLACED DELTA PRESSURE SENSOR AND TOTAL PRESSURE SENSOR IAW AMM 49-52-32 AND 49-52-33. OPS AND LEAK CHECKED NORMAL. APU OPERATED NORMAL.SDR AALA201702109010Bleed Air Sys · contaminatedAPU BLEED OPEN AT GATE, THE ODOR OF RESIDUAL OIL IN CABIN. APU FOUND TO BE SOURCE OF CABIN ODOR DUE TO OIL IN BLEED AIR SYSTEM, CHANGED APU. AIRCRAFT WAS GROUNDED.SDR UIEA2016120600991Seal · looseAPU INLET DOOR SEAL ASSY IS LOOSE. REMOVED AND REPLACED APU INLET DOOR SEAL ASSY IAW AMM 49-15-09.SDR FDEA201611134012Duct · failedDURING PUSH BACK AFTER LEFT ENGINE START, LEFT DUCT LEAK APPEAED ON EICAS RAN QRH DUCT LEAK LP. FOUND BLOWN DUCT AT WELD SEAM. INSTALLED SERVICEABLE APU PNEUMATIC DUCTSDR UIEA2016111000838Warning Message · false activationEICAS MESSAGE APU BLEED VALVE DURING TAXI IN. ACCOMPLISHED APU OPS TEST IAW AMM 49-11-00 AND APU AIR OPERATES NORMAL ON GROUND.SDR ASAA2016110218548Sensor · failedAPU PROTECTIVE SHUT DOWN, WITH FAULT LIGHT. (REVERSE FLOW SHUTDOWN) FAULT CODE 49-52017 (BLEED DISABLED TO PREVENT REVERSE FLOW) FAULT CODE 49-52269. ACFT GROUNDED. PERFORMED APU TROUBLESHOOTING IAW FIM 49-50 TASK 821. FOUND DELTA PRESSURE SENSOR READING INCSDR HALA2016110200406Cooling Fan · contaminatedAPU COOLING FAN ASSY FOUND WITH EVIDENCE OF OIL CONTAMINATION. APU COOLING FAN REPLACED IAW AMM 49-52-51. REFER OM12 ITEM 5 FOR LEAK AND OP CHECK. TASK COMPLETE. FAN ASSY OFF 33-4952-9-0002 00684 ON 33-4952-9-0002 01376.SDR UIEA2016082400699Valve · malfunctionedWITH PACKS ON APU SURGES. R & R APU SURGE VALVE IAW AMM 49-53-01. OPS CHECK NORMAL.SDR UIEA2016081900692Filter · malfunctionedFOUND APU BLEED PRESSURE DUCT PRESSURE SURGES. REMOVED AND REPLACED SURGE VALVE FILTER. OPS CHECKED NORMAL IAW AMM 49-53-06.SDR UIEA2016081800691Module · malfunctionedAPU BITE MESSAGE. REMOVED AND REPLACED FLOW SENSING MODULE IAW AMM 49-53-08, NO BITE MESSAGE. APU OPS CHECKED GOOD.
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