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.

SDR AALA202501230614Apu · contaminatedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INBOUND INTO RSW DUE TO THE FLIGHT CREW REPORTING THAT BOTH AFT FLIGHT ATTENDANTS SMELLED DIRTY SOCKS DESCENDING THROUGH 12000 FEET. THE AIRCRAFT LANDED SAFELY AT RSW WITHOUT FURTHER INCIDENT. MAINTENANCE CLEANEJan 22, 2025 · N901AA · Airbus A321231SDR YENA2025012200100Solenoid Valve · failedFLT#133, BOS-SFO. '(ETOPS) 'APU AUTO SHUTDOWN WELL AFTER 15 MIN CSS TEST; DEOILER SOLENOID REPLACED IN BOS GROUND OPS CKS GOOD- PER MCC THIS CLOSES MDDR MCC NOTIFIED MX4 UPDATED PLACED REMOVED.'Jan 21, 2025 · N2142J · Airbus A321271NXSDR AALA202501207805Vent Line · cokedAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A DIRTY MUSTY ODOR DURING DESCENT THRU ENGINE SHUTDOWN WITH THE PACKS AND BLEEDS ON. MAINTENANCE FOUND THE APU GEARBOX VENT LINE TO HAVE SIGNIFICANT COKING AND REPLACED IT PER TASK CARD 26L00021002. MAINTENANCE ACCOMJan 17, 2025 · N131NN · Airbus A321231SDR GTIA2025011638673Line · looseFUME EVENT ON APPROACH ISOLATED TO PACK 1-PERFORMED INSPECTION OF APU IAW AMM 49-00-00. FOUND LOOSE LINE. TIGHTENED & SECURED LINE IAW AMM 49-11-00-08. PERFORMED OPS CHECK IAW AMM 49-00-00-05 OPS TEST GOOD. NO FAULTS NOTED.Jan 15, 2025 · N983NK · Airbus A320271NSDR IPXA2025011604140Warning Message · false activationAIR TURNBACK, APU FAULT CLIMBING THROUGH 15,000€™. DID NOT RESTART PER QRH PROCEDURE. ACCOMPLISHED APU BITE REF 757 FIM 49-11-875. NO FAULTS FOUND ON ECU. INSPECTED APU REF FOUND NO DEFECTS. OPERATED APU REF 757 M/M CHAP 49- 11-00- 802-00. APU STARTED ANJan 15, 2025 · N470UP · Boeing 75724APFSDR DALA2025011400319Apu · contaminatedSHIP 3846 -SMK- DUE TO SMOKE IN THE COCKPIT WITH APU BLEED. ODOR IN CABIN NOTED. CORRECTIVE ACTION: MAINTENANCE FOUND EVIDENCE OF DE-ICING FLUID IN APU INLET. PERFORMED OIL CONTAMINATION REMOVAL FROM AIR CONDITIONING AND PNEUMATIC SYSTEM PER B737 AMM 21-00. REJan 13, 2025 · N846DN · Boeing 737932ERSDR DXTA2025011501947Apu · odorWHEN APU ON AND BLEEDS SELCTED IN APU, A STRONG DEICE SMELL WAS PRESENT IN THE CABIN. NO NOTICABLE SMELL ON ENGINE BLEEDS. CORRECTIVE ACTION: PERFORMED BORESCOPE OF APU INLET AND EXHAUST. OPS CHECK GOOD. NO DEFECTS NOTED. IAW SERVICE INFORMATION LETTER LS_CL30Jan 12, 2025 · N767QS · Bombdr BD1001A10SDR YENA2025011300040Apu · contaminatedFLT#1347, DCA-SJU. 'BURNING ELECTRICAL ODOR IN FLIGHT DECK AT GATE WITH APU BLEED ON. FA REPORTED DIRTY SOCK SMELL NEAR 2R DOOR DURING DEPLANING; COMPLIED WITH INFO NOTICE 2017-T015K SECTION B2,IDENTIFIED SOURCE OF ELECTRICAL ODOR TO BE COMING FROM LH RECIRCULJan 11, 2025 · N974JT · Airbus A321231SDR AALA202502171528Apu · burnedAIRCRAFT WAS GROUNDED: AFTER NUMBER 1 ENGINE START THE NUMBER 1 ENGINE GENERATOR DROPPED OFF AFTER A COUPLE MINUTES WITH ASSOCIATED ELECTRICAL BURNT SMELL. APU WAS REPLACED WITH AN 8130 CERTIFIED APU. PER TASK CARD 08C30049002, OPERTIONAL CHECKS GOOD.Jan 8, 2025 · N918NN · Boeing 737823SDR AALA202502176351Apu · odorAIRCRAFT WAS GROUNDED: EXTERNAL POWER DROPPED WITHOUT POWER BEING PULLED AND ASSOCIATED ELECTRICAL BURNT SMELL. APU WAS REPLACED WITH AN 8130 CERTIFIED APU. PER WITH TASK CARD 08C30049002, OPERTIONAL CHECKS GOOD.Jan 8, 2025 · N918NN · Boeing 737823SDR WX0A2025011332265Apu · leaking(AIRCRAFT NOT GROUNDED) DIRTY SOCK SMELL IN THE FORWARD CABIN & COCKPIT. TRIED TO ISOLATE THE SMELL TO A SINGLE PACK BUT WAS UNABLE./ REMOVED & REPLACED FWD GALLEY FILTER IAW AIM ALTITUDE CMM 25-35-82. REMOVAL OF APU S/N P-7682, PER AMM 49-11-11-000-004, PERFJan 8, 2025 · N337NV · Airbus A319111SDR NACA20250106001Apu · unknownAPU FAULT ON START. PERFORMED APU BITE PER FIM 49-11-FT-987 NO FAULTS NOTED. OPS CHECK GOOD PER AMM 49-11-00Jan 2, 2025 · N565NC · Boeing 7673BGSDR DALA2024122712027Apu · odorSHIP 3120 WHEN APU BLEED AND PACKS ON WE SMELLED A VERY STRONG DIRTY SOCKS SMELL. CORRECTIVE ACTION: R/R APU ON W/C 4900-9002. (6966226)Dec 26, 2024 · N320NB · Airbus A319114SDR 2025F00016Apu · contaminatedSMOKE IN COCKPIT CAUSED BY DEICING FLUID IN APU INTAKE DURIMNG DEICING PROCEDURES ON GROUND PRIOR TO TAKEOFFDec 24, 2024 · N892TX · Raythn HAWKER800XPSDR YENA2024122301576Apu · odorFLT# 8360, SJU-FLL. 'FUMES SMELL ON DESCENT AT ABOUT 10,000MSL UNTIL LANDING APU WAS OFF; C/W INFORMATION NOTICE 2017-T015, SECTION B2. DECONTAMINATION LEVEL 2(B) WAS ACCOMPLISHED PER TSM 05-50-00-810-085-B/D. APU FOUND TO BE SOURCE OF ODOR AND WAS DEFFERRE. ADec 20, 2024 · N715JB · Airbus A320232SDR YENA2024122001571Cooling Fan · failedFLT#1193, BOS-MBJ. 'DIRTY SOCK FUME EVENT BEGINNING AT APPROX 25K IN DESCENT ENGINES ABOVE IDLE . BECOME VERY STRONG PASSING 18K PERSISTED UNTIL SHUTDOWN AT THE GATE , COCKPIT AND ENTIRE CABIN NOTED BY ALL CREW MEMBERS. ( PACKS ); COMPLIED WTH INFO NOTICE -20Dec 18, 2024 · N807JB · Airbus A320232SDR YENA2024121801567Apu · odorFLT#2133, MCO-SJU. 'FUME EVENT DURING DESCENT FROM 12,000 FT UNTIL AFTER LANDING , CA + FO + FWD + AFT FA'S SMELLED FUMES (DIRTY SOCK); COMPLIED WITH INFORMATION NOTICE 2017-T015,SECTION B2,FOUND APU TO BE THE SOURCE OF ODOR,DECONTAMINATION LEVEL A WAS ACCOMPDec 17, 2024 · N524JB · Airbus A320232SDR AALA202412171118Apu · odorAIRCRAFT WAS GROUNDED: WEAK BUT UNUSUAL ODOR IN FLIGHT DECK AND CABIN. SMELL WORST ON CLIMB OUT AND DESCENT. MORE NOTICEABLE IN FLIGHT DECK,. EMERGENCY DECLARED AIRCRAFT LANDED WITHOU INCEDENT. MX COULD NOT REPRODUCE ODOR. PRESSURE CLEANED APU COMPT. RAN APU,Dec 16, 2024 · N9018E · Airbus A319115SDR GTIA2024112538554Apu · odorON ARRIVAL INTO MCO @ 3000' FUME EVENT ... TURNED ON APU BLEED AND FUME WENT AWAY--Nov 23, 2024 · N921NK · Airbus A320271NSDR YENA2024112501499Apu · odorFLT#348, LAS-JFK. 'DESCENDING INTO JFK ENTERED CLOUDS AT 10,000 AND HAD DIRTY SOCK SMELL UNTIL EXITING CLOUDS AT 4,000, SMELL IN COCKPIT AND FWD AND AFT CABIN, FUMES/ODOR FOR COMPLETED; PERFORMED INDO NOTICE 2017-T015K, IDENTIFIED ODOR AS TYPE 1. APU FOUND TO Nov 21, 2024 · N946JL · Airbus A321231SDR YENA2024112501498Cooling Fan · odorFLT#8356, FLL-JFK. 'DUE TO ODOR EVENT APU COOLING FAN REQUIRES REPLACEMENT; REMOVED AND REPLACED APU COOLING FAN DUE TO ODOR EVENT IAW AMM 49-52-51-400-002-A LEAK CHECK REQ REF L/P 4140957, ITEM 2 (OPS AND LEAK CK OF APU COOLING FAN PER AMM: 49-52-51, NO LEAKSNov 20, 2024 · N956JT · Airbus A321231SDR GTIA2024111938533Apu · odorDESCENDING THROUGH 4500 FT GOT "DIRTY SOCK" SMELL IN COCKPIT.-COMPLY WITH TSM 05-50-00-810-831 A. PERFORMED ENG 1 & 2 RUN UP IAW AMM 71-00-00. ISOLATED PACK 1 & 2 AND ENGINE BLEEDS. FOUND SOURCE OF SMELL TO BE APU AND PACK # 1.Nov 17, 2024 · N649NK · Airbus A320232SDR SWAA2024111960642Apu · shutdownAPU AUTO SHUTDOWN IN CRUISE AND WOULD NOT COME BACK ONLINE 11/12-SMOKE COMING FROM TAILPIPE-REPLACED OIL COOLER 11/8-SERVICED APU GEARBOX OPS CHECKED OK 11/2-REPLACED LUBE UNIT FILTER AND START/GEN FILTER OPS CHECKS OK 11/2-SMOKE COMING FROM TAILPIPE-R/R'D OILNov 16, 2024 · N262WN · Boeing 7377H4SDR CALA2024111801172Apu · odorTEST FLIGHT DISCREPANCY. . BURNIG SMELL ON FLIGHT DECK PASSING 12K FT SEEM S ELEC REPLACED APU AND ALL LH PACK COMPONENTS. PERFORMED OPERATIONAL CHECKS AND NO SMELL IN COCKPIT OR CABIN. TEST CREW WILL CHECK REFERENCE PER LP 9801346.Nov 14, 2024 · N224UA · Boeing 777222SDR ABXA20241114225Pneumatic System · faultedDURING TAXI THERE WERE NO APU PNEUMATICS. ACFT RETURNED TO GATE (BTB) AND MTX GROUNDED AC . MTX DEFERRED APU. PNEUMATICS FOR DEPARTURE IAW MEL ABX-49-11-1-1 AND RETURNED AC TO SERVICE .Nov 14, 2024 · N364CM · Boeing 767338SDR I5PA2024111375702Ecu · inoperativeAPU ELECTRICAL LOAD FLUCTUATES. REPLACED APU ECU PER AMM. OPS CHECK GOOD.Nov 13, 2024 · N757QM · Boeing 75729JSDR HNAA2024111201090Apu · failedWITH PACK 2 ON AND RUNNING ON APU, ODOR AND SMOKE FROM VENTS ON FLT DECK AND CABIN. SELECTED PACK OFF AND APU FAILED AFTER 3 MINUTES OF SMOKE OCCURING. MESSAGE OF APU OIL HIGH TEMP MEL 11NOV24 15:31 CAE C31614 49-1 APUNov 11, 2024 · N658AE · Emb EMB145LRSDR YENA2024110501426Apu · odorFLT#1379, DCA-FLL. ' ODOR OF DIRTY SOCKS NOTED BY MULTIPLE CREW DESCENDING BELOW 6,000FT SEEMED TO DISSIPATE WITH PACK 1 OFF, LEVEL 2; C/W INFO NOTICE 2017-T015K . ISOLATED ODOR TO APU. PERFORMED AMM 21-00-00-615-803A. COMPLIED WITH INFORMATION NOTICE 2017-T01Nov 4, 2024 · N789JB · Airbus A320232SDR NACA2024110100002Control Panel · faultedDUE TO HISTORY OF APU SHUTDOWN DURING BUS TRANSFER, REPLACED APU CONTROL PANEL IAW AMM 49-41-81 OPS CHECK GOOD. PART IS UNKNOWN TO TRAX, NO HOURS INFO AVAILABLE.Nov 1, 2024 · N379CX · Boeing 767323SDR NACA2024110100001Apu · unknownAPU FAULT TWICE WHILE IN KMIA. PERFORMED OPERATIONAL CHECK APU CHECK NORMAL IAW AMM 49-11-00Nov 1, 2024 · N566NC · Boeing 7673BGSDR AALA202410300050Apu · odorAIRCRAFT WAS GROUNDED: MUSTY ODOR THROUGHOUT AIRCRAFT DURING DESCENT. MAINTENANCE TS ODOR TO APU AND REPLACED THE APU.Oct 27, 2024 · N752US · Airbus A319112SDR FDEA202410251581Nut · looseABOUT TO DEPART BFM. TURNED ON APU BLEED. CURRIER AREA FILLED WITH SMOKE. TURNED OFF APU BLEED AND DEPARTED AC. FOUND OIL PUMP NUT LOOSE AT OIL COOLER INLET, TIGHTEN AS REQUIRE IAW A300-600 AMM CH 49-91-16-4 AND SERVICE APU OIL IAW AMM 12-13-49-00. REMOOct 25, 2024 · N669FE · Airbus A300F4605RSDR DALA2024102110255Apu · odorSHIP 3138 AFTER ENGINE SHUTDOWN, CREW NOTICED DIRTY SOCK SMELL IN CABIN AND COCKPIT WITH APU RUNNING. SHUT DOWN APU AND SMELL DISAPPEARED. CORRECTIVE ACTION: COMPLETED CARDS 0550-2002 + 4900-2001 AND 0550-2003. (6654118)Oct 20, 2024 · N338NB · Airbus A319114SDR YENA2024101401347Apu · odorFLT#2234, SJU-MCO. 'DIRTY SOCK SMELL AT 2000 IN COCKPIT FWD AND AFT GALLEY APU OFF ( APU SYSTEM ).' (SUPPLEMENTAL INFORMATION TO FOLLOW)Oct 14, 2024 · N789JB · Airbus A320232SDR YENA2024101401343Apu · odorFLT#927, EWR-MCO. 'DIRTY SOCK FUME IN FLT DECK SMELLED ON FINAL APPROACH. STARTED APU & APU BLEED AND SMELL DISSIPATED; T/S PER INFO NOTICE 2017-T015K. FOUND APU TO BE THE CULPRIT. REF LP 4060018-2 FOR APU RESOLUTION. PERFORMED A ECS DECONTAMINATION PROCEDURESOct 14, 2024 · N504JB · Airbus A320232SDR NACA2024100600002Apu · no discrepancyAPU FAULT. ACCOMPLISHED APU CENTRAL UNIT BITE TEST IAW AMM 49-61-05, NO FAULTS FOUND.Oct 6, 2024 · N566NC · Boeing 7673BGSDR DALA2024100509719Apu · odorSHIP 3124 FA AFT SMELLED STRONG MUSTY DIRTY SOCK ODOR. CORRECTIVE ACTION: APU CHANGED PER W/C 4900-9002, FCS DECONTAMINATION ON W/C 2100-2003 AND COMPARTMENT WASH ON W/C 4916-2001. (4011142)Oct 2, 2024 · N324NB · Airbus A319114SDR AALA202410019544Cooling Fan · leakingAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A FAINT MUSTY ODOR IN FLIGHT DECK DURING DESCENT FOR ABOUT TWO MINUTES AT 5000' APU OFF. ENG. BLEEDS ON. MAINTENANCE FOUND THE APU OIL COOLING FAN LEAKING AND REPLACED IT. A SATISFACTORY LEAK / OPERATIONAL CHECKM WSep 29, 2024 · N913US · Airbus A321231SDR DALA2024092809494Cooling Fan · leakingSHIP 3251 DSIC: ON DESCENT INTO SLC AROUND 11000' MSL GOT THE DIRTY SOCK SMELL FROM THE A/C SYSTEM. AFTER ENGINES WERE SHUT DOWN AT GATE THE SMELL WENT AWAY. C/A: PERFORMED CAUSE TABLE. FOUND APU TO BE AT FAULT. (595143). INSPECTED APU FOUND OIL IN INLET. REMOSep 27, 2024 · N351NW · Airbus A320212SDR YENA2024091701277Control Valve · faultedFLT#1926, LGW-BOS. (ETOPS) 'APU CLASS II MSG ( CLASS II MAINTENANCE MESSAGES DISPLAYED ); REMOVED AND REPLACED APU LOAD CONTROL VALVE IAW 49-51-51. OPS CHECKS GOOD. NO DEFECT NOTED.THIS CLEARS MDDR 560307.MX-4 UPDATED PLACARD REMOVED.Sep 15, 2024 · N2157J · Airbus A321271NSDR QXEA2024091500211Apu · contaminatedDURING APU SHUT DOWN A RAMPER REPORTED GREY SMOKE/MIST EMINATING FROM THE APU AREA, NOT THE TAIL CONE EXHAUST. THERE WAS ASLS OA BLACK OILY FLUID DRIPPING FROM THE BOTTOM APU INLETT. NO ABNORMAL APU INDICATIONS ON EICAS DURING THE APU SHUTDOWN/START.REMOVED FRSep 15, 2024 · N664QX · Emb ERJ170200LRSDR DALA2024091609072Apu · odorSHIP 3123 BURNING SMELL WHEN APU BLEED TURNED ON. CORRECTIVE ACTION: REMOVED AND REPLACED APU PER AMDS CARD 4900-9002. NO SMELL. OK FOR SVC. (6103826)Sep 13, 2024 · N323NB · Airbus A319114SDR F3LA2024091300130Apu · odorGROUNDED DUE TO ISSUE. LP345732, ITEM 1--ATB: UPON ARRIVING TO RWY 26R FOR T/O, WE NOTICED A VERY PRONOUNCED FUMES SMELL. AT THE TIME WE ASSUMED IT WAS EXHAUST FROM A B-767 THAT WAS IN FRONT OF US. WE TOOK OFF WITH BOTH ENGINE BLEEDS ON. AFTER TAKEOFF THE SMELSep 12, 2024 · N375FR · Airbus A320251NSDR AALA202409138528Apu · leakingAIRCRAFT WAS GROUNDED: WHILE OPERATING THE AIRCRAFT WITH THE APU INOPERATIVE AND ON MEL, THERE IS AN OCCASIONAL MILD TO VERY OCCASIONALLY MODERATE DIRTY-SOCK SMELL COMING FROM THE PACKS. THEREFORE IT SEEMS PLAUSIBLE THAT THE SOURCE OF THE RECENT SOF EVENT MAY Sep 10, 2024 · N554UW · Airbus A321231SDR YENA2024090301201Apu · contaminatedFLT#874, TPA-EWR. 'FUMES SMELT AFTER ENGINE START, VERY FAINT, DURING CRUISE FAINT, AND IN DESCENT VERY STRONG, COULD NOT DETERMINE WHICH PACK USING ISOLATION TECHNIQUE; C/W INFO NOTICE 2017- T015 SECTION B2. IDENTIFIED ODOR COMING FROM APU. DECONTAMINATION LEAug 31, 2024 · N524JB · Airbus A320232SDR YENA2024090301200Apu · contaminatedFLT#1433, MCO-SJU. 'DESCENDING THUR FL200 FO SMELL DIRTY SOCKS SMELL. CA NOTICE IT AROUND 17000 FEET, IT WAS A MILT BUT PERSITING ODOR. WE TENT TO THINK IT WAS A LVL 1 ENV.SYST ODOR. INFLIGHT DIDNT SMELL IT. WE RAN DID ESOLATION CHECK AND COULD TELL A DECREASEAug 31, 2024 · N705JB · Airbus A320232SDR YENA2024090301204Apu · contaminatedFLT#1833, BOS-SFO. 'DIRTY SOCK SMELL IN COCKPIT & FWD CABIN CLIMBING OUT OF BOSTON (ALSO SLIGHT SMELL CHALF) UNTIL ABOUT 15K THEN STARTED DISSIPATING. BETTER WITH PACK 1 OFF. DESCENT: STRONGER FUMES EVEN WITH PACK 1 OFF; COMPLIED WITH INFORMATION NOTICE 2017Aug 29, 2024 · N969JT · Airbus A321231SDR YENA2024082601173Cooling Fan · leakingFLT#1575, FLL-KIN. 'LIGHT DIRTY SOCK SMELL FLT DECK IN DESCENT. FA REPORTS ODOR PRESENT MID-CABIN IN DESCENT. WITH APU USE, PRE-BOARDING ENTIRE CABIN HAS MODERATE PUNGENT ODOR. CLEANERS AND GATE AGENTS NOTIFIED. (APU WAS OFF IN DESCENT); C/W INFO NOTICE 2017-TAug 22, 2024 · N705JB · Airbus A320232SDR NACA2024081900001Hose · damagedDURING APU CHECK, FOUND SURGE VALVE DUCT HOSE DAMAGED. REMOVED AND REPLACED APU SURGE VALVE DUCT HOSE IAW AMM 49-53-01Aug 19, 2024 · N566NC · Boeing 7673BGSDR DALA2024081708232Apu · odorAIRCRAFT 5012, AT GATE WHILE BOARDING CREW STARTED APU AND THEN NOTICED A DIRTY SOCK SMELL. COMPLIED WITH 2100-2007 APU BURNOUT. REPLACED LEFT AND RIGHT RECIRCULATION FILTERS. (LP 5903372)Aug 16, 2024 · N512DE · Airbus A321271NX
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