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 YENA2024112501497Bleed Air Sys · odorFLT#771, BOS-CUN. 'INBOUND FA'S ALL REPORT A FUME IN THE CABIN UPON LANDING ( APU BLEED AIR SUPPLY SYSTEM ).' (SUPPLEMENTAL INFORMATION TO FOLLOW)SDR ABXA20241121230Controller · faultedDURING TAXI APU NOT PRODUCING BLEED AIR AC RETURNED TO BLOCK (BTB). MTX GROUNDED AC , RESET AND CLEANED FAULT ON APU CONTROLLER PER AMM 49-67-05 APU OPS CHECK GOOD. BLEED AIR CHECK TESTS GOOD AND RETURNED AC TO SERVICESDR YENA2024110501424Bleed Air Sys · contaminatedFLT#1379, DCA-FLL. 'F3 & F4 SMELLED AN ODOR IN THE AFT GALLY ON TAXI AND TAKEOFF; COMPLIED WITH INFORMATION NOTICE 2017-T015, SECTION B2. IDENTIFIED ODOR ORIGINATION FROM APU BLEED SYST. DECONTAMINATION LEVEL A WAS ACCOMPLISHED PER TSM 05-50-00-810-831-A. A/C SDR AALA202410221878Bleed Air Sys · odorAIRCRAFT WAS GROUNDED: ON DESCENT AND AT THE GATE FLIGHT ATTANDENT REPORTED A STRONG BURNING SMELL IN THE CABIN, THE ODOR LASTED ABOUT 5 MINUTES AND THEN WENT AWAY. THE FRONT OF THE CABIN HAD AN EXHAUST OR BURNING SMELL LIKE A MUSTY AND OILY SMELL. **SUPPLEMENSDR HALA20240923164Duct · puncturedETOPS - DURING INSTALLATION OF APU FUEL FILTER PER T/C 330-493100-01-3 FOUND AIR SURGE DUCT WITH A HOLE. REMOVED AND REPLACED AIR SURGE DUCT PER AMM 49-51-52-400-801-A. OPS TEST GOOD. LEAK CHECK GOOD. OK FOR SERVICE.SDR YENA2024092001289Bleed Air Sys · odorFLT#1294, MCO-HPN. 'ODOR EVENTS DESCENDING THROUGH 10K DIRTY SOCK SMELL IN AFT CABIN. LASTED 5 MIN. CONFIRMED BY ALL IN FLIGHT; ACCOMPLISHED INFO NOTICE 2017-T015K AND ISOLATED THE ODOR TO APU BLEED. APU BLEED PLACED ON MEL (560732) AND LEVEL A CONTAMINATION ASDR DALA2024090108607Inlet · contaminatedSHIP 3267 DISC: PILOT ARRIVAL IN FLT DECK STRONG OIL SMELL, INCREASED WITH PACKS TURNED ON. C/A: DURING VISUAL INSPECTION FOUND OIL CONTAMINATION ON APU INLET REQUIRES FURTHER T/ACCOMPLISHED W/C 0550- 2002 & W/C 2100-2005. ALL FUMES ISOLATED TO APU. ALL ODI PRSDR HALA20240826243Bleed Valve · faultedETOPS - APU BLEED FAULT TAXING TO PARKING. BY FOLLOWING TSM 49-62-00-810-841-A REPLACED APU BLEED VALVE FILTER PER AMM 49-51-51-960-801-A.OPS CK GOOD .OK FOR SVC.SDR YENA2024082101134Control Valve · failedFLT#353, BOS-DUB. (ETOPS) 'AIR APU BLEED FAULT ON ECAM AFTER APU STARTED ON GROUND ( APU BLEED VALVE (INOP CLOSED); REMOVED AND REPLACED APU LOAD CONTROL VALVE IAW AMM 49-51-51. OPS/LEAK CHECK GOOD. MDDR CLOSED.SDR YENA2024080801096Bleed Air Sys · contaminatedFLT#1033, MCO-SJU. 'ON DEPARTURE OUT OF MCO HAD DIRTY SOCK SMELL DISSIPATED DURING FLIGHT. ON DESCENT SMELL RETURNED. ON BLOCK IN W/ APU SMELL PERSISTED AND WAS MORE PREVALENT THE FURTHER AFT YOU MOVE INTO THE CABIN; C/W INFO NOTICE 2017-T015 SECTION B-2. IDENSDR AALA202408059415Bleed Air Sys · odorAIRCRAFT WAS GROUNDED: FUMES EVENT UPON TURNING ON APU BLEED AIR ON AFTER LANDING, FLIGHT ATTANDENT REPORTED STRONG ODOR IN THE BACK OF THE PLANE. OPENSDR NACA2024073100001Bleed Air Sys · weakAPU BLEED PRESSURE WEAK, 10-20 PSI. CAUSING PROLONGED ENGINE START 50-55 SECONDS. DEFERRED APU PER MEL 49-11-01A. REPLACED APU IAM AMM 49-11-01-404 OPS AND LEAK CHECK GOOD.SDR DALA2024072407446Bleed Valve · faultedATO - DUE TO ENG THRUST LOSS MSG WHEN T/O POWER SELECTED. CORRECTIVE ACTION: PLACED APU BLEED AIR AND THE CROSS-BLEED VALVE AUTOMATIC CONTROL ON MEL. CONTINUE IN SERVICE. THEN R/R APU AIR BLEED VALVE 59KH7 PER A330 AMM 49-51-51. OPS AND LEAK CHECK GOOD. MEL/PLSDR NACA2024062100001Ecu · dirtyAFTER LANDING, APU BLEED NOT PRODUCING AIR. DUCT PRESSURE INDICATING AT 5PSI, NO AC, PACKS INOP. REMOVED ECU, CLEANED RESEATED ECU IAW SWPM 20-61-00, OPS CHECK NORMAL.SDR I5PA2024061088801Bleed Air Sys · low pressureFLT: N/A (MX INSP.) ESI - APU BLEED PRESSURE LOW DURING ENGINE START. R/R APU PER TASK CARD 49-999-00-0, LEAK CHECK OK, OPS CHECK GOOD.SDR ABXA20240527499Warning Light · illuminatedDURING TAXI APU AIR INOP LIGHT ILLUMINATED. AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC AND DEFERRED APU IAW ABX MEL-49-11-1A . AND AC DEPARTED .SDR SWIA202405130011Warning Message · illuminatedFOLLOWING APU DOOR OPEN & R PACK OFF CAUTION MESSAGES PRESSURIZATION BEGAN STEADILY RISING. STARTED TO DESCEND TO COMBAT RISING CABIN ALTITUDE. CABIN ALT CAUTION MESSAGE APPEARED. DECLARED AN EMERGENCY AND DESCENDED TO 10000 FEET AND MESSAGE EXTINGUISHED. (FLISDR HALA20240506125Bleed Valve · faultedETOPS - APU BLEED FAULT. REMOVED AND REPLACED APU BLEED VALVE PER AMM 49-51-51. OPS AND LEAK CHECK GOOD. NO FAULTS NOTED. OK FOR SVC.SDR AALA202404237863Apu · contaminatedAIRCRAFT WAS GROUNDED: AFTER LANDING FLIGHT ATTENDANTS REPORTED THAT DURING DESCENT(APPROXIMATELY THROUGH 10,000FT A SIGNIFICANT DIRTY SOCKS SMELL WAS NOTICED IN THE MID CABIN FORWARD OF THE MID LAVATORY. THE SMELL MOVED FURTHER AFT AND DID NOT BEGIN TO DISSIPSDR AALA202404157930Check Valve · noisyAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO CLT DUE TO A VERY LOUD METALLIC GRINDING SOUND COMING FROM FLOOR LEVEL, BEHIND THE WALL, OR UNDER THE FLOOR IN THE AREA OF THE MID LAVATORY ON LEFT SIDE. THE NOISE WAS HEARD DURING FSDR I5PA2024040588801Surge Valve · faultyFLT: MGE 301. ESI - APU FAULT. T/S PER FIM 49-11 F/T 85. FOUND REVERSE FLOW FAULT ON BITE TEST. REPLACED APU SUREGE VALVE. OPS CHECK NORMAL.SDR DALA2024032203664Duct · contaminatedSHIP 5815 ON APPROACH 6000-5000 FEET A MUSTY ODOR BECAME APPARENT IN THE FLIGHT DECK. ODOR PERSISTED UNTIL PARKED AT THE GATE W/ BLEED NOW ON APU. ODOR STILL PERSISTS. R/R RECIRC FILTERS, FOUND OIL CONTAMINATION FROM IN APU BLEED DUCT, REMOVED CONTAMINATION.SDR ABXA20241121229Apu · low pressureSTARTED RIGHT ENGINE DURING TAXI . GOT 2 HUNG STARTS. N 2 MAX WAS 40. QRC DID NOT FIX IT(APU AIR DUCT PRESS LOW) AC RETURNED TO GATE (BTB) AND MTX GROUNDED AC .AND DEFERRED APU AIR FOR DEPARTURE IAW ABX-49-11-1-1 .AND RETURNED AC TO SERVICE.SDR DALA2024021402193Check Valve · faultedSHIP 1023 - DIV - TO MEM DUE TO AIR APU BLEED LEAK ECAM MESSAGE. DUE TO ICING COULD NOT CONTINUE TO ATL. CORRECTIVE ACTION: FOUND APU CHECK VALVE (7260HM) STICKING AND NOT SEATING PROPERLY. REPLACED APU CHECK VALVE. LEAK CHECK GOOD. (LP 4203536)SDR DALA2024012501143Check Valve · bindingSHIP 3418 -DIV- TO DEN DUE TO AN APU BLEED LEAK MESSAGE. CORRECTIVE ACTION: APU BLEED CHECK VALVE FOUND BINDING. REPLACED CHECK VALVE. OPS AND LEAK CHECK GOOD. (5366785)SDR GTIA2024012637802Duct · contaminatedAIR QUALITY EVENT DEPARTING ORD SHUT DOWN PACK 1. AIR QUALITY IMPROVED. MUSTY SMELL WAS OBSERVED. -DUE TO HISTORY OF AIR QUALITY EVENTS, TI 2100-2004 ISSUED AND PERFORMED. PERFORMED AMM TASK 36-12-00 DECONTAMINATION OF THE BLEED AIR DUCTING SYSTEM. NO ODOR NOTSDR YENA2024011600041Apu · faultedFLT#1193, BOS-MBJ. '(APU SYSTEM); PERFORMED THE STEPS IN TSM 49-00-00-200-811A. FOUND NO LEAKS FROM LOAD COMPRESSOR DRAIN LINE. NO VISIBLE OIL LEAKS NOTED. RAN APU AND BLEED FOR A TOTAL OF 3 HOURS AND NO ODORS PRESENT. MDDR CLEARED. PLACARD REMOVED. MX4 UPDATESDR NACA2023121700003Unknown · unknownNO DUCT PRESSURE WHEN APU BLEED SELECTED. PERFORMED FIM 49-11 FT 958 APU ECU BITE TEST COMPLETED, OPS CHECK GOOD PER AMM 49-61-00 APU BLEED NORMAL.SDR ASAA2023102645862Actuator · faultyAPU BLEED INOP - HAS HISTORY FOR THE SAME ON 10/13/23. GROUNDED - YES. (RESOLVED ON W/O: 1975133 TASKCARD: N/R-00001 ) C/W INITAL EVAL AND FAULT ISOLATION FOR FC 49-52192, IGV ACTUATOR LVDT SHOW CIRCUIT FAILUIRE. NO FAULTS NOTED DURING APU WIRING AND IGV ACTUASDR ASAA2023102645860Unknown · unknownFA SEATED IN AFT CABIN REPORTS VIBRATION IN FLOOR WHEN WE ARRIVED AT GATE IN SEA AFTER ENGINE SHUTDOWN. CO-INCIDED WITH APU BLEED AIR ON. VIBRATION WENT AWAY WHEN APU BLEED TURNED OFF. GROUNDED - YES. (RESOLVED ON W/O: 1974796 TASKCARD: N/R-00003 ) APU RAN IN SDR ASAA2023103045842Unknown · unknownUPON WALKAROUND APU SURGING 3 TIMES. GROUNDED - YES. (RESOLVED ON W/O: 1973105 TASKCARD: N/R-00002 ) PERFORMED MULTIPLE DRY MOTORS & ENGINE STARTS. COULD NOT DUPLICATE. NO FALTS FOUND. NO LEAKS FOUND. CHECKED HISTORY. PER FIM 810 SUSPECTED TO BE INTERMITTENT FSDR ASAA2023102445814Actuator · faultyBOTH DUCT PRESSURE NEEDLES FLUCTUATE BETW 20-28 PSI WHILE ON APU BLEED AIR ON THE GROUND. GROUNDED - YES. (RESOLVED ON W/O: 1974919 TASKCARD: N/R-00001 ) FOUND FAULT MESSAGE 49-52192. "IGV ACTUATOR LVDT SHOWS CIRCUIT FAILURE" REMOVED AND REPLACED APU IGV REF ASDR ASAA2023101445629Actuator · faultyAPU BLEED AIR DUCT PRESSURE ZERO WITH APU RUNNING & BLEED ON. GROUNDED - YES. (RESOLVED ON W/O: 1973316 TASKCARD: N/R-00009 ) BITE OF APU ECU NO CURRENT FAULTS. APU MAINT HISTORY SHOWS 49-52190, 49-52192 MULTIPLE TIMES. PERFORMED RESISTANCE CHECKS OF T12, T4, SDR ASAA2023101345631Sensor · faultyAPU HAS MILD SURGING DURING NORMAL OPERATION. GROUNDED - YES. R+R DELTA PRESSURE SENSOR REF AMM 49-52-33-000-801/400-801 AND TOTAL PRESSURE SENSOR REF AMM 49-52-32-000-801/400-801. APU FUNCTIONS NORMALLY. NDN.SDR NACA2023101620001Unknown · unknownAPU BLEED AIR NO START. DEFERRED APU BLEED VALVE PER MEL 36-11-04SDR ASAA2023101245589Bleed Valve · faultyAT BRAKE RELEASE TIME, BOTH PACKS WERE AUTO AND APU BLEED OPEN, NO DUCT PRESSURE. CYCLED BOTH PACKS OFF, APU BLEED CLOSED, THEN CONFIGURED TO NORMAL. HAD 20 PSI DUCT PRESSURE. ONCE PACKS WERE TURNED ON DUCT PRESSURE WENT TO 0. CYCLED AN ADDITIONAL TIME AND HADSDR ASAA2023100945543Unknown · unknownAFTER LANDING ATTEMPTED TO START APU. APU FAULT LIGHT ILLUMINATED. RAN QRH . AFTER 5 MINS ATTEMPED RESTART.APU FAULT LIGHT ILLUMINATED A SECOND TIME. POSITIONED APU START SWITCH TO OFF. GROUNDED - YES. ON DEFERRAL.SDR ASAA2023092445303Unknown · unknownAPU BLEED DUAL PRESSURE FLUCTUATES BETWEEN 0 AND 40PACK SELECTION LEFT RIGHT OR BOTH MAKE NO DIFFERENCE. GROUNDED - YES. (RESOLVED ON W/O: 1971307 TASKCARD: N/R-00001 ) ACCOMPLISHED IFIM TASK 749-52-00-810-811. AND FOUND SOME DEBRIS ON TOTAL PRESSOR SENSOR IN SDR ASAA2023092445262Unknown · unknownAPU HAD FLUCTUATING BLEED AIR PRESSURE DROPPED TO 0 TWICE STABILIZED AFTER 3 MINUTES. GROUNDED - YES. APU DUCT PRESSURE WITHIN LIMITS AND STABLE REF B737-9 AMM 36-00-00. OK FOR SERVICE.SDR ASAA2023083044855Unknown · unknownAPU CONTINOUSLY BLOWS AIR AT 33C REGARDLESS OFF TEMP SETTING. GROUNDED - YES. MAINTENANCE PROCEDURES REVERSED. TROUBLESHOT PER FIM 49-52-00-810-812. BOTH DP AND PT SENSORS AND LINES CLEAR OF DEBRIS. OPERATED APU BLEED AIR PER AMM 21-00-00, BOTH PACKS SHOW CONSSDR YENA2023082400988Unknown · unknownFLT#8356, MBJ-EWR. 'ODOR RETURNED IN DESCENT MORE NOTICEABLE IN THE CLOUDS STARTED AT ABOUT FL 270,' (SUPPLEMENTAL INFORMATION TO FOLLOW)SDR HALA2023081100171Sensor · faultyETOPS - APU BLEED FAULT ON ECAM. PERFORMED TSM 49-00-00-810-811-A, REMOVED AND REPLACED BLEED FLOW SENSOR ASSY. OPS CHECK OF APU BLEED GOOD. OK FOR SVC.SDR ASAA2023080744484Unknown · unknownWITH APU PRESSURIZING PACKS, DUCT PRESSURE FLUCTUATES FROM 10 TO 35 PSI. GROUNDED - YES. ACCOMPLISHED ENG NORMAL START REF AMM 71-00-00 WITH APU BLEED AIR WITH NO FLUCTUATION NOTED APU OPS NORMAL THIS CLEAR MEL 49-52-01B SEA MOC NOTIFIED PLACARDS REMOVED.SDR ASAA2023071944170Bleed Valve · failedNO APU DUCT PRESSURE. GROUNDED - YES. (RESOLVED ON W/O: 1962653 TASKCARD: N/R-00002 ) REFER TO TSR714655 FOR CORRECTIVE ACTION. THIS DEFECT HAS BEEN CLEARED WITH BLEED AIR VAVLE R+R. MEL 49-7C CLEARED. C/N 19091464 CLEARED. SEAMCC WILL NOTIFIED. PLACARD REMOVESDR ASAA2023071544056Unknown · unknownNO DUCT PRESSURE WITH APU BLEED AIR SWITCH ON. GROUNDED - YES. PERFORMED B737-9 FIM TASK 49-52-00. CYCLE POWER BLEED AIR BACK TO NORMAL.SDR DALA2023060604623Unknown · unknownSHIP 5807 - ATB/FUME - DUE TO REPORTS OF AIR NOISE, VIBRATION AND SMELL IN AFT CABIN. CORRECTIVE ACTION: T/S FOUND RT RECIRC AIR CHECK VALVE ORIENTED SIDEWAYS, REINSTALLED. REMOVED AND REPLACED LEFT AND RIGHT RECIRC AIR FILTERS. FOUND APU DUCT SUPPORT BRACKETSSDR I5PA2023012775705Duct · damagedFLT. NO. N/A (MX). ESI - FOUND APU COOLING FAN DISCHARGE DUCT ASSY. DAMAGED. REPLACED APU COOLING FAN DISCHARGE DUCT PER AMM 49-51-03.SDR DALA2023012400599Apu · smokeABOUT 60" AFTER APU STARTED UP THERE WAS A STRONG ODOR RESEMBLING ELECTRICAL SMOKE IN THE FLT DECK. SMOKE PERSISTED FOR ABOUT 30" THEN STARTED TO DISSAPATE. C/W SMOKE AND FUMES W/C 0550-2001 AND NO-GO ODI PREVENTION TASKS 081229. COMPLETED AMDS WORK CARD 0550-SDR YENA2023012300068Cooling Fan · failedFLT#1496, CUN-FLL. ' DURING DESCENT THRU 4000FT SMELL 'SWEET ODOR'. ON THE GROUND AT GATE WITH APU BLEED OFF AND ON THE SMELL STALE DAMP SMELL; INSPECTED APU IAW AMM 49-00-00 200-811-A. FOUND THE COOLING FAN ASSY LEAKING. REMOVED AND REPLACED FAN ASSY IAW 49-SDR AALA202212076132Apu · odorAIRCRAFT WAS GROUNDED: DURING DESCENT OIL SMELL IN FLIGHT DECK AND MID CABIN REPORTED AFTER LANDING. MAINTENANCE ISLOATED THE SOURCE OF THE ODOR TO THE APU. (OPEN)
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