N791UA

Service difficulty reports · 188

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. 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 n_number = 'N791UA' AND registry_match = 'registration'
  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 CALA2025121212053Shutoff Valve · odorWHILE RUNNING RT PACK AND CARGO HEAT IN HIGH AFT CARGO PIT DEVEL OPED SMOKE IN COMPARTMENT. TECH WAS WORKING IN AFT CARGO WHEN SMOKE WAS OBSEVERED. HE NOTED ISSUE WHEN APU BLEED AIR WAS TURNED ON. NOTICED IN FLT DECK THAT CARGO HEAT SWITCHES WHERE BOTH IN HIGDec 11, 2025 · N791UA · Boeing 777222 · Pneumatic Distribution SystemSDR CALA2025121212052Sensor · faultedRIGHT PACK OFF FOLLOWED BY ACRID ODOR, THEN EICAS SMOKE. PLACED ON MEL 2151A. REMOVED AND REPLACED LOWER FLOW CONTROL & SHUTOFF VALVE (FCSOV) IAW AMM 21-51-02-400-801. REPLACED RT AIR PACK FLOW SENSOR IAW AMM 21-51-03/401. ALL TESTS PASS, RAN ENGINE AND PACDec 10, 2025 · N791UA · Boeing 777222 · Cabin Cooling SystemSDR CALA2025121012008Linkage · faultedNO WATER AVAILABLE, NO PRESSURE FOR TOILET. WASTE TANK 3 FULL. ON GROUND NO WATER AVAILABLE IN ACFT. WATER SERVICE CART CONFIRMED WATER TANKS FULL. ALL HANDLES CLOSED-NORMAL POSITION, CYCLED DURING SERVICE. STILL NO WATER, CONFIRMED WATER COMPRESSOR RUNNING Dec 6, 2025 · N791UA · Boeing 777222 · Potable Water SystemSDR CALA2025081907915Unknown · odorCONDITIONAL INSPECTION 05-05-58-800-801-C3 SMOKE/ODOR IN THE FLIGHT DECK/CABIN - MAINTENANCE PRACTICES NEEDS TO BE REFERENCE FOR ANY SMOKE OR ODOR OCCURRENCE. GENERAL ACCOMPLISHED INSPECTION ON THE MID GALLEY OVENS, NO DEFECT OR BURN FOUND. ACCOMPLSHED PER AMMAug 15, 2025 · N791UA · Boeing 777222 · Air Distribution SystemSDR CALA2025081807862Unknown · odorFAS REPORT STRONG ODOR AT DOOR 2R FROM 3000 FT TO LANDING, FOUND NO DISCRIPINCES. RAN APU AND PACKS FOR AN HOUR NO ODOR DETECTED.Aug 15, 2025 · N791UA · Boeing 777222 · Air Distribution SystemSDR CALA2025051204615Lamp · inoperativeCAPT EMERGENCY DOME LIGHT INOP RELAMPED CAPT EMERGENCY DOME LIGHT, REF AMM 33-51-07-960-801. OPS CHECK GOOD.PARTS USED: 19-2514-3-0001, QTY :1May 9, 2025 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2025042204134Pump · faultedFUEL DISAGREE EICAS IN CRUISE. NO LEAK SUSPECTED. ENG FUEL TUBE FM11 LEAKING AT FUEL FACE SEAL , HELI COIL DAMAGED WHEN REMOVING BOLT. REMOVED #2 ENG FMU REF AMM 73-11-01 ,ALSO REMOVED #2 ENG FUEL PUMP REF AMM 73-11-01. ACCOMPLISHED IDT INSPECTION OF THE INApr 18, 2025 · N791UA · Boeing 777222 · Engine Fuel PumpSDR CALA2025040203456Line · leakingWATER LEAKING FROM OVHD DOOR 4R FOUND WATER LINE ABOVE LAV AT 4R DISCONNECTED. SEE PHOTOS. ADD EMP:U412608,U416150 WIGGINS FITTING REPLACED NO LEAKS NOTED. ALL MX COMPLETE AND CLEAN UP COMPLETE. A/C BIS.Mar 31, 2025 · N791UA · Boeing 777222 · Water and Waste SystemSDR CALA2024100802601Spar · crackedEA5310-07557 REV A OP 003 (AD 2019-11-02) 1EA FASTENER HOLE FOUND CRACKED AT BS1035 LH UNDERWING LONGERON FRONT SPAR CHORD LAYER TRANSFER REF HXWO 3744324 AND ORIGINATED BY EMP V914372 LH UNDERWING LONGERON FRONT SPAR LOWER CHORD AT BS1035 LBL81.30. REPAIREDOct 2, 2024 · N791UA · Boeing 777222 · Fuselage Main, StructureSDR CALA2024100702576Longeron · crackedEA5310-07557 REV A OP 003 (AD 2019-11-02) 1EA FASTENER HOLE FOUND CRACK AT BS1035 LH UNDERWING LONGERON RING CHORD LAYER TRANSFER REF HXWO 3744312 LH UNDERWING LONGERON BODY RING CHORD AT BS1035 LBL81.30. REPAIRED AS PER ECRA 5710-02894 REV - PART 1 INTERIM Oct 2, 2024 · N791UA · Boeing 777222 · Fuselage Main, StructureSDR CALA2024100702575Stringer · corrodedB777-06-3-7169 - AFT CARGO COMPT STA1874-1895 S44L STRINGER FOUND CORROSION. AFT CARGO COMPT STRINGER S44L REPAIRED AS PER SRM57-70-03-2R-1 REPAIR 1 JUST BETWEEN BS1853 AND BS1895 FORM 44-0008 ITEM 1 TO 25 ACCOMPLISHED ,Sep 29, 2024 · N791UA · Boeing 777222 · Fuselage Main, Longeron/StringerSDR CALA2024100702580Skin · crackedEA5310-07557 REV A OP 003 (AD 2019-11-02) 2EA FASTENER HOLE FOUND CRACK AT FUSELAGE SKIN AS MARKED TRANSFER REF HXWO 3744330. FUSELAGE LH SKIN REPAIRED WITH REPAIR FILLER AND REPAIR DOUBLER AS PER EA5310-07557 REV A OP004 JUST BETWEEN BS993-1035 AND STR35 TOSep 21, 2024 · N791UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR CALA2024100702579Stringer · crackedEA5310-06900 REV E OP003 (AD2019-11-02) - 2EA CRACKS FOUND ON LH BS1035 BUILT-UP UNDERWING LONGERON FITTING , ACCOMPLISH EA5310-07557 OP 003 FOR REPLACEMENT TRANSFER REF HXWO 3662797. FUSELAGE LH UNDERWING LONGERON REPLACED AND INSTALLED AS PER EA5310-07557 RSep 21, 2024 · N791UA · Boeing 777222 · Fuselage Main, Longeron/StringerSDR CALA2024061701811Fmu · faultedLEFT ENGINE FUEL FLOW WILL NOT SHUT OFF WITH CUTOFF SWITCH OR FIRE HANDLE. RECONNECTED D71024P AT CORE/STRUT AND NOW HAVE 28VDC AT FMU D71124. REQUIRES OPS CHECK. WITH NO FIRE OR SMOKE. CONNECTOR DM76001C. SHOOK DOWN WIRES FROM FMU TO CORE/STRUT CONNECTOR, UNAJun 16, 2024 · N791UA · Boeing 777222 · Fuel Controlling SystemSDR CALA2023051101457Battery Pack · dischargedDURING BATTERY PACK CAPACITY CHECK FND BATTERY PACK LOW CAPACITY ON M33409 REF HAECO NON-ROUTINE NO.9456145 - ORIGINATED BY EMP V905467, SPEC NO.B777-33-3-7019. PERFORMED BY EMP V905467,IDT BY EMP V924356,REPALCED THE BATTERY PACK ON M33409 AND TEST OK AS PER May 10, 2023 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2023051201483Battery Pack · dischargedDURING BATTERY PACK CAPACITY CHECK FND BATTERY PACK LOW CAPACITY ON M33408 REF HAECO NON-ROUTINE NO.9456145 - ORIGINATED BY EMP V905467, SPEC NO.B777-33-3-7019. PERFORMED BY EMP V905467,IDT BY EMP V924356,REPLACED THE BATTERY PACK ON M33408 AND TEST OK AS PER May 10, 2023 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2023051201475Battery Pack · dischargedDURING BATTERY PACK CAPACITY CHECK FND BATTERY PACK LOW CAPACITY ON M33407 REF HAECO NON-ROUTINE NO.9456145 -. SPEC NO.B777-33-3-7019. REPLACED THE BATTERY PACK ON M33407 AND TEST OK AS PER AMM 33-51-06-960-802 REV.97.May 10, 2023 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2023051201474Battery Pack · dischargedDURING BATTERY PACK CAPACITY CHECK FND BATTERY PACK LOW CAPACITY ON M33098 REF HAECO NON-ROUTINE NO.9456145 -. ,SPEC NO.B777-33-3-7019. REPLACED THE BATTERY PACK ON M33098 AND TEST OK AS PER AMM 33-51-06-960-802 REV.97.May 10, 2023 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2023031300734Inlet · not reportedTHIS IS A SUPPLEMENTAL REPORT FOR THE SAME CONTROL NUMBER SUBMITTED ON 13/03/23. BIRD STRIKE AT 7000 FT RT ENG/PACK/WING. ENG 2 INLET DENT AT 8CL POSITION. REMOVED #2 ENG INLET COWL, INSTALLED NUMBER 2 ENGINE NOSE COWL.VERIFIED TORGUE AND PROPER INSTALLATION. Mar 11, 2023 · N791UA · Boeing 777222 · Powerplant SystemSDR CALA2021102601973Skin · noneAHM: AHM REPORTED{29-1137-S905}*LEFT HYDRAULIC FLUID LEVEL AT OR BELOW SERVICE LIMIT.* REQUEST MAINTENANCE TO PERFORM A HYD RESERVOIR FLUID LEVEL CHECK IAW AMM 12-12-01-610-801, SERVICE AS REQUIRED. IF ANY EVIDENCE OF LEAKAGE IS OBSERVED PLAN TO ACCOMPLISH MAIOct 22, 2021 · N791UA · Boeing 777222 · Fuselage Structure (General)SDR CALA2020091801120Battery Pack · dischargedEMERGENCY BATTERY REPLACED ON ELB AT L-3 LOCATION. NOTED BY MX, LOG OPENED FOR ELB REPORTING, BATT DEAD L3.Sep 16, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091801119Battery Pack · dischargedEMERGENCY BATTERY PACK REPLACED AT L2 DOOR LOCATION ON ELB. BATT DEAD, NOTED BY MX, LOG CLEARED FOR SDR REPORTING.Sep 16, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091801118Battery Pack · dischargedEMERGENCY LIGHT BATTERY REPLACED AT L-3 ON ELB. NOTED BY MX BATTERY PACK REPLACED THIS LOG OPENED FOR SDR REPORT BATTERY DEAD L-3.Sep 16, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091501107Battery Pack · dischargedEMERGENCY LIGHTS OUT AT L1 LOCATION REPLACED 2EA BATTERY PACKS AT L1, REF 777 MM 33-51-06-960-802.Sep 14, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091501106Battery Pack · dischargedEMERGENCY LIGHTS OUT AT L4 LOCATION REPLACED 1EA BATTERY PACK AT L4 LOCATION, REF 777 MM 33-51-06-960-802.Sep 14, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091501105Battery Pack · dischargedEMERGENCY LIGHTS OUT AT R1 REPLACED ONE EA. BATTERY PACK AT R1 LOCATION, REF 777 MM 33-51-06-960-802.Sep 14, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091501104Battery Pack · dischargedEMERGENCY LIGHTS OUT AT L2 LOCATION REPLACED 2EA BATTERY PACKS AT L2 LOCATION, REF 777 MM 33-51-06-960-802.Sep 14, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020091501103Battery Pack · dischargedEMERGENCY LIGHTS OUT AT L3 LOCATION REPLACED 3EA BATTERY PACKS AT L3 LOCATION, REF 777 MM 33-51-06-960-802.Sep 14, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020021200381Battery · dischargedFOUND L/H DR NO.3 OVER AISLE 3EA EMER LT INOP. REF NON-ROUTINE N O.9404817 -Feb 7, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020021200380Battery · dischargedFOUND R/H DR NO.3 OVER AISLE 2EA EMER LT INOP. REF NON-ROUTINE N O.9404814.Feb 7, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020021200379Battery · dischargedCABIN DR 4R AREA EMER LT STAY ON 2 MINS DURING BATTERY CAPACITY CHK (LIMIT 15 MINS).Feb 7, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2020021200378Battery · dischargedFOUND L/H & R/H DR NO.2 OVERHEAD EMER LT INOP. REF NON-ROUTINE NO.940468Feb 7, 2020 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2018092401989Charger · inoperativeC/O EMER LIGHT FOUND BATTERY M33098 CHARGER ASSY INOP AT DR2 RT. REPLACED THE M33098 BATTERY CHARGER ASSY AND C/O EMER LIGHT OPERATION TEST FOUND NORMAL REF AMM 33-51-06-960-803 AND AMM 33-51-06-710-003 REV 83.Sep 22, 2018 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2018091901951Battery · dischargedC/O EMER LIGHT TEST FOUND BATTERY M33404 INOP AT DOOR 3 RT. REPLACED THE BATTERY M33404 AT DR3 RT AND CO EMER LIGHT OP TEST FOUND NORMAL REF AMM 33-51-06-960-802 AND AMM 33-51-00-710-801 REV 83.Sep 16, 2018 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2018091901950Battery · dischargedEMER LIGHT TEST FOUND BATTERY M33409 INOP AT DOOR 4 RT. REPLACED THE BATTERY M33409 AT DOOR 4 RT AND CO EMER LIGHT OPERATION TEST FOUND NORMAL REF AMM 33-51-06-960-802 AND AMM 33-51-00-710-801 REV 83.Sep 16, 2018 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2018021100598Light · inoperativeEXTERIOR EMERGENCY LIGHT AT DOOR 3L INOP. RELAMPED EMERGENCY LIGHT AT DOOR 3L. OPS CHECK GOOD.Feb 11, 2018 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2017092903343Circuit Card · failedFIRE EICAS STATUS LEFT ENGINE. FIRE/OVERHEAT DETECTION CARD FAULT OR FAILURE, OR AIMS LOSS OF ARINC 629/429. REMOVED AND REPLACED LT ENGINE FIRE DETECTION CARD IAW AMM 26-11-03. PERFORMED ENGINE FIRE DETECTION OPERATIONAL TEST IAW AMM 26-11-00. TEST PASSESep 29, 2017 · N791UA · Boeing 777222 · Fire DetectionSDR CALA2017092203283Battery Pack · defectiveRIGHT ISLE ROW 9, 10, AND 20, EMRGENCY LIGHTS INOPERATIVE. TROUBLESHOT THE EMERGENCY LIGHTS, AND FOUND M33098 BATTERY PACK DEFECTIVE. REPLACED THE BATTERY PACK IAW AMM 33-51-00. OPS CHECKED GOOD.Sep 22, 2017 · N791UA · Boeing 777222 · Emergency LightingSDR CALA2017071502248Unknown · odorELECTRICAL ODOR AT THE L1 DOOR. RAN ALL SYTEMS AROUND THE DOOR, OPS CHECKED GOOD, NO ELECTRICAL ODORS NOTED.Jul 15, 2017 · N791UA · Boeing 777222 · Air Distribution SystemSDR CALA2014020390280Unknown · smokeFLIGHT REPORTED SMOKE IN THE CABIN, DECLARED AN EMERGENCY & ELECTED TO DIVERT TO EWR. AIRCRAFT LANDED APPROXIMATELY 50,000 LBS OVER WEIGHT NO FUEL DUMP.Jan 31, 2014 · N791UA · Boeing 777222 · Air Distribution SystemSDR CALA2014011490141Smoke Detector · malfunctionedIAW JOB CARD 2-3215 TEST 15. SMOKE DETECTOR SYS OPERATIONS TEST FAILED. IAW AMM26-14-03-501. ACCOMPLISHED SMOKE DETECTOR SYS OPERATION TEST 15. IAW 777-222 A CHECK JOB CARD 2-3215, CHECKED OK.Jan 13, 2014 · N791UA · Boeing 777222 · Smoke DetectionSDR CALA2013120993534Clamp · brokenRT MLG RETRACT ACTUATOR HAS ONE CLAMP BROKEN.Dec 6, 2013 · N791UA · Boeing 777222 · Landing Gear ActuatorSDR CALA2013111292830Controller · faultyAPU APUC DETECTED FAULT THAT WOULD CAUSE AUTOMATIC SHUTDOWN OF APU IN UNATTENDED MODE OPERATION, OR COMPLETE LOSS OF APUC BUS ACTIVITY BOTH LT & RT 629 FOR 3 SECONDS AFTER THE APU MASTER CONTROL SWITCH HAS BEEN IN THE ON POSITION FOR TEN SECONDS. STATUS MESSNov 11, 2013 · N791UA · Boeing 777222 · APU ControlsSDR CALA2013100891865Eec · unknownENG EEC C1 LT ENGINE CONTROL IS IN A TIME LIMITED DISPATCH CONDITION.Oct 7, 2013 · N791UA · Boeing 777222 · Fuel Control/Turbine EnginesSDR CALA2013092691493Shutoff Valve · faultyTRIM AIR PRSOV LT. DUE TO HISTORY OF TRIM AIR PRSOV LT NOT IN THE COMMANDED POSITION. REPLACED LT TRIM AIR PRSOV, OPERATIONS CHECKED NORMAL.Sep 25, 2013 · N791UA · Boeing 777222 · Air Distribution SystemSDR CALA2013092391342Hydraulic Line · leakingHYD QUANTITY LOW CENTER HYD SYSTEM LOW RESERVOIR QUANTITY. QTY < .40 ADVISORY MSG01- ACTIVE APPROACH HARD; RESERVOIR CENTER FLUID QUANTITY IS LOW. HYDIM CL MSG-2910150 ACTIVE AP HARD. IAW TO IPC 32-51-80-005 ITEM 40 HYD HOSE LEAKING. REPLACED HYD HOSE & SSep 18, 2013 · N791UA · Boeing 777222 · Hydraulic System, MainSDR CALA2013083090862Printer · failedELECTRICAL BURNING ODOR COMING FROM CABIN PRINTER. OPENED CIRCUIT BREAKER C13 ON P210 PANEL, ODOR CLEARED. REPLACED CSCP PRINTER.Aug 28, 2013 · N791UA · Boeing 777222 · Communications SystemSDR CALA2013082690751Unknown · malfunctionedREF LOG 2, EXCEEDENCE SNAPSHOT SENT BY CREW INDICATES EXHAUST GAS TEMPERATURE WAS 676 FOR 6.2 SECONDS. NEXT STATION REVIEW "ENG EXCD" PAGE IAW JRH 2-2-62 CONFIRMED ENGINE GAS TEMPERATURE EXCEEDENCE TEMPERATURE. ACCOMPLISHED APPLICABLE INSPECTION IAW 72-00-00 Aug 25, 2013 · N791UA · Boeing 777222 · Engine EGT/TIT Indicating SystemSDR UALA2013060703988Slide · unsecureR2 DOOR SLIDE FELL OUT OF CONTAINER- SLIDE WAS PINNED AND DID NOT INFLATE. INSTALLED ESCAPE SLIDE ASSY.Jun 7, 2013 · N791UA · Boeing 777222 · Escape SlideSDR UALA2013050103050Screw · unsecureRIGHT WING ROOT HAS SCREW STICKING UP. SECURED FASTENER ON RIGHT WING ROOT AREA.Apr 30, 2013 · N791UA · Boeing 777222 · Wing Main, Frame Structure
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