Boeing 777-300ER

Service difficulty reports · 444

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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 aircraft_model_key = '777300ER'
  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 CALA2026042015500Battery Pack · no testEMERGENCY LIGHT BATTERY PACK M33305,ABOVE DR 3R CTR, FAILED DEEP CYCLE CAPACITY TEST. EMER LIGHT BATTERY PACK (M33305) REPLACED AS PER AMM33-51-06. INSTALLATION TEST PERFORMED AS PER AMM33-51-06 SATISFACTORY.Apr 17, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026042015498Battery Pack · no testEMERGENCY LIGHT BATTERY PACK M33098,ABOVE DR 2R AFT, FAILED DEEP CYCLE CAPACITY TEST. EMER LIGHT BATTERY PACK (M33098) REPLACED AS PER AMM33-51-06. INSTALLATION TEST PERFORMED IAW AMM 33-51-06 SATISFACTORY.Apr 17, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026042015495Battery Pack · no testEMERGENCY LIGHT PACK, M33099, ABOVE DR 2L AFT, FAILED DEEP CYCLE CAPACITY TEST. EMER LIGHT BATTERY PACK (M33099) REPLACED AS PER AMM33-51-06. INSTALLATION TEST PERFORMED IAW AMM33-51-06 SATISFACTORY.Apr 17, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026042015493Battery Pack · no testEMERGENCY LIGHT BATTERY PACK M33096, ABOVE DR 2L FWD, FAILED DEEP CYCLE CAPACITY TEST. EMER LIGHT BATTERY PACK (M33096) REPLACED AS PER AMM33-51-06. NSTALLATION TEST PERFORMED AS PER AMM33-51-06 SATISFACTORY.Apr 17, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026041915467Battery Pack · no testEMERGENCY LIGHT BATTERY PACK (M33094) FAILED DEEP CYCLE CAPACITY TEST. EMERGENCY LIGHT BATTERY PACK (M33094) REPLACED IAW AMM33-51-06. INSTALLATION TEST PERFORMED IAW AMM 33-51-06 SATISFACTORY.Apr 17, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026040615090Oven · faultedOVEN 705 HAD A BURNING ELECTRICAL ODOR. OVEN OFF & SECURED. NO SMELL, REMOVED OVEN CHK BRACKET IS CLEAN. WIRE BUNDLE CLEARANCE IS ENOUGH, RECEPTACAL IS NML AS WELL. SVC REQ'D SHOW ON INDICATOR AFTER 2 MINS WARM UP. PULL OUT CB. PLACARDED INOP. REMOVED AApr 3, 2026 · N2644U · Boeing 777300ER · Buffet/GalleysSDR CALA2026032914884Battery Pack · no testTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33407) AT THE DOOR 5L FOUND LOW CAPACITY . REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK M33407 AT THE DOOR 5L AND CARRIED OUT INSTALLATION TEST, THE TEST RESULT WAS NORMAL REF AMM 33-51-06-960-802 REVMar 30, 2026 · N2341U · Boeing 777300ER · Emergency LightingSDR CALA2026032914883Battery Pack · no testTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33097) AT THE DOOR 2R FOUND LOW CAPACITY . REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK M33097 AT THE DOOR 2R AND CARRIED OUT INSTALLATION TEST. THE TEST WAS NORMAL.Mar 30, 2026 · N2341U · Boeing 777300ER · Emergency LightingSDR CALA2026032914882Battery Pack · no testTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33118) AT THE DOOR 1 OFCR FOUND LOW CAPACITY . REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK M33118 AT THE DOOR 1 OFCR AND CARRIED OUT INSTALLATION TEST, THE TEST RESULT WAS NORMAL REF AMM 33-29-10-96Mar 30, 2026 · N2341U · Boeing 777300ER · Emergency LightingSDR CALA2026032714867Unknown · odorPAX 37ABC COMPLAINED OF INTERMITTANT BURNT RUBBER ORDER COMPLIED B773 AMM TASK 05- 51-58-800-803-C3. PERFORMED VISUAL INSPECTION ON SEAT BETWEEN 36-38ABC MONITORS, ELECTRICAL OUTLET, SEAT ELECTRONICS BOX, AND LIGHTS. NIL ABNORMALITIES FOUND. CREW REPORTED PMar 26, 2026 · N2639U · Boeing 777300ER · Air Distribution SystemSDR CALA2026040615066Seal · leakingPLACED NR 2 ENGINE ON DIP FOR HOC. CAPPED THE EDP, MFP, BUG, IDG & HMU DRAIN LINES AND DIP FOR 25 CYCLES PER AMM 71-71-00-700-801-H01. ENG 2 DUE TO HIGH OIL CONSUMPTION CAPPED THE EDP, MFP, BUG, IDG & HMU DRAIN LINES IAW AMM 71-71-00-700-801-H01 C/W REPAIR Mar 21, 2026 · N2846U · Boeing 777300ER · AC Generator-AlternatorSDR CALA2026031814654Battery Pack · no testTHE EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY LOW ON THE DOOR 3L POWER SUPPLY M33303. REPLACED BATTERY PACK ON THE DOOR 3L POWER SUPPLY M33303, THEN PERFORMED INSTALLA TION TEST,THE RESULT WAS NORMAL IAW AMM 33-51-06-960-802 REV 106 .Mar 17, 2026 · N2243U · Boeing 777300ER · Emergency LightingSDR CALA2026031814653Battery Pack · dischargedTHE EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY LOW ON THE DOOR 1R POWER SUPPLY M33094.. REPLACED BATTERY PACK ON THE R1 DOOR POWER SUPPLY M33094, THEN PERFORMED INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 33-51-06-960-802 REV 106.Mar 17, 2026 · N2243U · Boeing 777300ER · Emergency LightingSDR CALA2026031814652Battery Pack · inoperativeTHE EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY LOW ON THE DOOR 3R POWER SUPPLY M33304 REFER HAECO NON-ROUTINE 9451831. REPLACED BATTERY PACK ON THE DOOR 3R POWER SUPPLY M33304, THEN PERFORMED INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 3Mar 17, 2026 · N2243U · Boeing 777300ER · Emergency LightingSDR CALA2026031914683Battery Pack · inoperativeEMERGENCY BATTERY PACK (M33096 ABOVE DOOR 2L) FAILED CAPACITY TEST. REPLACED THE BATTERY PACK, OPS CHECKS GOOD.Mar 16, 2026 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2026031914682Battery Pack · failedEMERGENCY BATTERY PACK ABOVE L-3 DOOR CTR FAILED (M33302) REF SIAEC N/R RLR0008 INSPECTION. BATTERY REPLACEMENT. OPS CHECKED GOOD.Mar 16, 2026 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2026031714611Battery Pack · no testEMERGENCY BATTERY PACK (M33096 ABOVE DOOR 2L) FAILED CAPACITY TEST. REF L/P 8229544 FOR ENTRY AND WORKMar 16, 2026 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2026031314557Battery Pack · brokenTHE PIN OF THE FWD EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33400) AT THE DOOR 4L FOUND BROKEN. REPLACED THE FWD EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33400) AT THE DOOR 4L AND CARRIED OUT INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 33-51-06-960Mar 12, 2026 · N2136U · Boeing 777300ER · Emergency LightingSDR CALA2026031314556Battery Pack · dischargedTHE CTR EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33305) AT DOOR 3R FOUND LOW CAPACITY. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33305) AT THE DOOR 3R AND CARRIED OUT INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 33-51-06-960-802, REV.106Mar 12, 2026 · N2136U · Boeing 777300ER · Emergency LightingSDR CALA2026031314555Battery · brokenTHE PIN OF THE EMERGEN LIGHT POWER SUPPLY BATTERY PACK (M33118) IN OFCR FND BROKEN. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33118) IN THE OFCR AND CARRIED OUT INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 33-29-10-960-810, REV.106.Mar 12, 2026 · N2136U · Boeing 777300ER · Emergency LightingSDR CALA2026030214135Oven · smokeOVEN 709 IS SMOKING FOUND BURNED FOOD RESIDUE IN THE OVEN. ATTMEPTED TO CLEAN BUT OVEN STILL HAS SLIGHT SMELL. REQUESTING NEF FOR GALLEY OVEN 709. APPROVED FOR MEL 2520AV NEF APPLIED. REMOVED AND REPLACED NR 709 OVEN IN AFT GALLEY R4 DOOR IAW AMM 25-32-02/40Feb 27, 2026 · N2352U · Boeing 777300ER · Buffet/GalleysSDR CALA2026021613822Battery Pack · dischargedTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33302) FOUND LOW CAPACITY. REPLACED BATTERY PACK AND TEST CARRIED OUT, NORMAL IAW AMM 33-51-06-960-802, REV.106.Feb 14, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026021613820Battery Pack · dischargedTHE AFT EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33401) AT THE DOOR 4R FOUND LOW CAPACITY. REPLACED THE AFT EMERGENCY LIGHT POWER SUPPLY BATTERY PACK, TESTED NORMAL IAW AMM 33-51-06-960-802, REV.106.Feb 14, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026021613810Battery Pack · dischargedTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33303) AT THE DOOR 3L FOUND LOW CAPACITY. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33303) AT THE DOOR 3L AND CARRIED OUT TEST THE RESULT WAS NORMAL REF AMM 33-51-06-960-802 REV 106.Feb 13, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026021613808Battery Pack · dischargedTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33301) AT THE DOO R 3L FOUND LOW CAPACITY. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33301) AT THE DOOR 3L AND CARRIED OUT TEST THE RESULT WAS NORMAL REF AMM 33-51-06-960-802 REV 106.Feb 13, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026021613806Battery Pack · dischargedTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33118) AT THE OFC R FOUND LOW CAPACITY. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33118) IN THE OFCR AND CARRIED OUT TEST, THE RESULT WAS NORMAL REF AMM 33-29-10-960-810 REV 106.Feb 13, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026021613804Battery Pack · dischargedTHE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33142) IN THE OFA R LOW CAPACITY REFER HAECO NON-ROUTINE LOG PAGE:9496088, REPLACED THE EMERGENCY LIGHT POWER SUPP LY BATTERY PACK(M33142) AND CARRIED OUT TEST,THE RESULT WAS NORM AL REF AMM 33-29-12-960-809 REV.1Feb 13, 2026 · N2639U · Boeing 777300ER · Emergency LightingSDR CALA2026020613606Light · broken53 AND 55 ROW EMER LIGHT BRIKEN 53 ROW LEFT 55 ROW RIGHT REPLACE EMER LIGHT ASS FUNCTION TEST OK PER AMM:33-51-05 PARTS USED: 99-3350-3-0008,QTY :2 CHK OKFeb 5, 2026 · N2846U · Boeing 777300ER · Emergency LightingSDR CALA2026020413555Battery Pack · dischargedOPERATIONAL TEST FDN R4 DOOR M33404 BATTERY PACK LOW CAPACITY, REPLACED R4 DOOR M33404 BATTERY PACK AND C/O OPERATIONAL TEST AS PER AMM 33-51-06-960-802 REV106,THE RESULT WAS NORMAL. RH DOOR 4 M33404 BATTERY PACK LOW CAPACITY. REPLACED AND PERFORMED INSTALLAFeb 3, 2026 · N2737U · Boeing 777300ER · Service DoorsSDR CALA2026020413554Battery Pack · dischargedOFAR RT M33142 BATTERY PACK FND LOW CAPACITY REF HAECO NON-ROUTINE NO.:9495512, REPLACED OFAR RT M33142 BATTERY PACK AND C/O OPERATIONAL TEST AS PER AMM 33-29-12-960-809 REV106,THE RESULT WAS NORMAL. OFAR RH M33142 BATTERY PACK HAS LOW CAPACITY. REPLACED/PERFOFeb 3, 2026 · N2737U · Boeing 777300ER · Passenger/Crew DoorsSDR CALA2026020413553Battery Pack · dischargedOPERATIONAL TEST FND FWD DOOR R2 BATTERY PACK M33097 LOW CAPACITY REF HAECO NON-ROUTINE NO.:9492605, REPLACED DOOR R2 BATTERY PACK M33097 AND C/O OPS TEST AS PER AMM 33-51-06-960-802 REV106. DOOR RH 2 BATTERY PACK M33097 LOW CAPACITY, REPLACED AND PERFORMED IFeb 3, 2026 · N2737U · Boeing 777300ER · Service DoorsSDR CALA2026020413576Inlet Door · inflt separationWHILE TROUBLESHOOTING LP 7779489, DISCOVERED APU INLET DOOR ASSY MISSING, DEPARTED ACFT DURING FLT FROM SFO TO HNL LOCKED APU DOOR EICAS STATUS APU INLET DOOR IS NOT IN COMMANDED POSITION. DB ELMS P310 ELECTRONIC UNIT, NO DAMAGE FOUND INSIDE INLET. ACTUATOR Jan 31, 2026 · N2341U · Boeing 777300ER · Auxiliary Power Unit (APU) DoorsSDR CALA2026013013440Valve · stuckLAVATORY 4G SINK BOWL FULL OF GREY WATER AND OVERFLOWING, FOWL ODOR THROUGH OUT CABIN. TROUBLESHOT SYS. RESTRICTOR VALVE DEACTIVATED OPEN LOCKED FOR REPAIR UNLOCKING LAV 4G SINK BOWL OPS CHECK GOOD, NO OVERFLOW IAW AMM 38-31-00.Jan 28, 2026 · N2644U · Boeing 777300ER · Waste Disposal SystemSDR CALA2026012613302Reservoir · noneRIGHT OVERWING SLIDE INFLATION CYLINDER SQUIB CARTRIDGE NOT EXPIREDJan 26, 2026 · N2737U · Boeing 777300ER · Standard Practices/StructuresSDR CALA2026012613268Light · inoperativeDOOR L2 GALLEY EMERGENCY LIGHT BETWEEN CART POSTION 416/417 INOPERATIVE. MEL APPLIED PLACARD INSTALLED IAW MEL. EMERG LIGHT INOPERATIVEJan 26, 2026 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2026012613265Housing · damagedEMERGENCY LIGHT AT 50D DAMAGED, FOUND 50D EMERGENCY LIGHTS BROKEN AND ITS HOUSING DAMAGED. TEMPORARILY SECURED AND DEFERRED IAW MEL 3351S. FLOOR PROXY EMERGENCY LIGHT INOPERATIVE AT 50D. REPLACED THE LIGHT HOUSING & LIGHT ASSY. LIGHT OPS CHECKS GOOD IAW AMMJan 26, 2026 · N2142U · Boeing 777300ER · Emergency LightingSDR CALA2026010212574Fan · odorSMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW. REF LP 7458681 COMPLIED AMM TASK 05-51-58-800-801-C3 WITH CMC MSG 21-24700 VISUAL CHECK AND DEACTIVATED LOWER RIGHT RECIRCULATING FAN. OPERATE AIR CONDITIONING ON GRDec 31, 2025 · N2644U · Boeing 777300ER · Air Distribution FanSDR CALA2025122412422Toilet · malfunctioned45 MIN INTO FLT WASTE TANK 2 SHOWS FULL & ASSOC LAVS WONT FLUSH. AFTER SERVICED, WASTE TANKS, OPS CHKD & FOUND LAV B INOP. DOOR 1L LAV B TOILET WON'T FLUSH. ACCOMPLISHED LAV B OPS TEST IAW AMM 38-32-00-700-802, TOILET FLUSHED NORMALLY MULTIPLE TIMES. OK FORDec 21, 2025 · N2639U · Boeing 777300ER · Waste Disposal SystemSDR CALA2025122112279Light · malfunctionedFA REPORTED CABIN EMERGENCY LIGHT ON FOR FEW MINS THEN OFF WITHOUT MOVING SWITCH. PERFORMED EMERGENCY LIGHTS OPS TEST BY TEST SWITCH IAW TASK 33-51-00-710-802, REV NO. ALL LIGHTS NORMAL TURNED ON AND OFF AUTOMATICALLY.Dec 19, 2025 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2025121812215Fmc · failedSHORTLY AFTER T/O L FMC FAILURE. ACCOMPLISHED NON-NORMAL. NO HEL P FMC AND DISPLAY UNIT ORDERED TO B29. NO FMC FAULTS AT CURRENT TIME OR IN RECENT HISTORY. ACOMPLISHED FMC OPERATIONAL TEST AND SYSTEM TEST REF AMMS 34-61-00-710-801 AND 34-61-00-730-801. INCLUDIDec 15, 2025 · N2138U · Boeing 777300ER · Flight Management Computing Hardware SystemSDR CALA2025121212079Valve · faultedNR 1 ENGINE IS EXPERIENCING AN INCREASE IN OIL CONSUMPTION. PE RFORM A VISUAL INSPECTION THE SUBJECT ENGINES EDUCTOR VALVE. BE SURE TO CHECK THE AIR LINE THAT RUNS ALONG THE VALVE TO SEE IF THERE ARE ANY INDICATIONS. IAW AMM 79-21-17/401 FOR LOCATION OF THE EDDec 10, 2025 · N2332U · Boeing 777300ER · Turbine Engine Oil SystemSDR CALA2025121012016Battery Pack · no testPOWER SUPPLY BATTERY PACK CAPACITY CHECK PROCEDURE, DURING EMERGENCY LIGHT FUNCTION CHK, FOUND BATTERY PACK FUNCTION LESS THAN 15 MIN AT DOOR 5R M33409. REPLACED A NEW BATTERY PACK IN M33409 POSITION AND CHK FUNCTION NORMAL IAW AMM 33-51-06.Dec 10, 2025 · N2138U · Boeing 777300ER · Emergency LightingSDR CALA2025120911930Packing · leakingENGINE HAS EXPERIENCED AN INCREASE IN OIL CONSUMPTION. ACCOMPLISHED A SNIFF CHECK OF OIL FOR FUEL ODOR IN THE OIL SYS, IAW AMM 12-13-01-130-803-002, STEP F.(1). ACCOMPLISH FIM 71-05/805 TO TROUBLESHOOT FOR HOC. PERFORM TEST NR 6. POWER LEAK CHECK WITH ALL DDec 8, 2025 · N2332U · Boeing 777300ER · Turbine Engine Oil SystemSDR CALA2025120211702Light · inoperativeEMER FLOOR PROXIMITY LIGHT INOP AT SEAT 31D, 49G, 53G, 54D, AND 54G. R/R LIGHT ASSY AND OPERATIONAL TEST GOOD REF WITH TO AMM 33-51-05-960-802.PARTS USED: 99-3350-3-0008, QTY :4Dec 2, 2025 · N2748U · Boeing 777300ER · Emergency LightingSDR CALA2025112811560Battery · no testOFCR EMERGENCY POWER SUPPLY BATTERY PACK 1 (M33118) FAIL TEST. BATTERY PACK REPLACED. INSTALLATION TEST CARRIED OUT FOR BATTERY PACK (M33118) IAW AMM33-51-00, FOUND WORKING SATISFACTORY.Nov 27, 2025 · N2534U · Boeing 777300ER · Emergency LightingSDR CALA2025112811558Battery · no testOFCR EMERGENCY POWER SUPPLY BATTERY PACK 2 (M33145) FAIL TEST. BATTERY PACK REPLACED. INSTALLATION TEST CARRIED OUT FOR BATTERY PACK (M33145) IAW AMM 33-51-00,FOUND WORKING SATISFACTORY.Nov 27, 2025 · N2534U · Boeing 777300ER · Emergency LightingSDR CALA2025112811556Battery · no testOFCR EMERGENCY POWER SUPPLY BATTERY PACK RH (M33142) FAIL TEST. BATTERY PACK REPLACED. INSTALLATION TEST CARRIED OUT FOR BATTERY PACK (M33142) AS PER AMM33-51-00, FOUND WORKING SATISFACTORY.Nov 27, 2025 · N2534U · Boeing 777300ER · Emergency LightingSDR CALA2025112811552Battery · inoperativeDOOR 4L EMERGENCY POWER SUPPLY BATTERY FAILED TEST. BATTERY REPLACED IAW AMM 33-51-00. INSTALLATION TEST CARRIED OUT FO DOOR 4L EMERGENCY POWER SUPPLY BATTERY (M33406) AS PER AMM33-51-00, FOUND WORKING SATISFACTORY.Nov 26, 2025 · N2534U · Boeing 777300ER · Emergency LightingSDR CALA2025112111383Unknown · odorON ACCOUNT OF A INDISTINGUISHABLE ODOR IN CABIN, INSPECTED DUCTS FOR EVIDENCE OF OIL IAW AMM 36-12-04-200-801. OPENED DUCT IN A/C BAY JUST BEFORE OZONE CONVERTER, NO EVIDENCE OF ANY CONTAMINATION. SHOULD READ OPENED BOTH LT AND RT SIDE DUCTS. PRIOR TO THE ONov 20, 2025 · N2250U · Boeing 777300ER · Air Distribution SystemSDR CALA2025112411403Unknown · odorSTRONG ELECTRICAL ODOR NOTICED IN THE AREA OF THE MOST AFT GALLEY COMPLEX. ODOR BEGINS PAST THE MED 4L, AFT; (AIRCRAFT HAD BEEN STATIC WITH NO SYSTEMS "ON" FOR APPX 8HRS). NEED TO INVESTIGATE ALL AREAS, INCLUDING ABOVE CEILINGS AND AFT BULK PIT AREA. NOTICED NNov 19, 2025 · N2250U · Boeing 777300ER · Air Distribution System
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