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Aircraft record

N770121999 Boeing 777-224

Registration validUnclaimedSource: FAA, updated Oct 17, 2026

Safety record in brief:No NTSB accidents or incidents since 198224 ADs may apply67 service difficulty reports

Registration
Valid
expires Jan 31, 2029
Based in
Chicago, IL
owner city / state
Engine
GE90-90B · 94,000 lb thrust
Ge
Owners
1
since 2022
NTSB events
None
since 1982
ADs may apply
24
confirm with A&P
Service reports
67
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Jan 12, 2022
Expires
Jan 31, 2029
Airworthiness
Standard · Transport
Airworthiness date
Aug 2, 1999

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Boeing
Model
777-224
Year
1999
Serial number
29860
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
400
Engines
2
Max takeoff weight
20,000 and over lb
Mode S code
AA6B9D

Engine

Make and model
Ge Ge90-90b
Type
Turbo-fan
Power
94,000 lb thrust

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2022 – nowUnited Airlines INCChicago, IL · current
  2. 1947 – 1948Individual ownerdifferent airframe: Cessna 120 S/N 11458

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (24)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2023-05-17Turbine SectionMay 10, 2023Engine (GE90-90B)Only with: Excludes engines with an installed full set of HPT stage 2 nozzles P/N 1847M47G23 and 1847M47G24.
2005-12-10Boeing Model 747-200F and -400 Series Airplanes; Model 767-400ER Series Airplanes; and…Jul 20, 2005Airframe (777-224)Serial numbers per Boeing Service Bulletins 747-25-3313 Revision 1, 767-25-0335, and 777-25-0210
2004-05-26Boeing Model 777 Series AirplanesApr 19, 2004Airframe (777-224)Serial numbers per Boeing Service Bulletin 777-25-0191, dated September 13, 2001
2003-19-02Boeing Model 777 Series AirplanesOct 8, 2003Airframe (777-224)Certain serial numbers: 1–412. Only with: Limited by line numbers 1 through 412 inclusive.
2003-12-01Boeing Model 777 Series AirplanesJul 17, 2003Airframe (777-224)
Show all 24 ADs
ADSubjectEffectiveApplies to
2002-16-15Boeing Model 777 Series AirplanesSep 26, 2002Airframe (777-224)Certain serial numbers: 777 1–266. Only with: Limited to line numbers 1 through 266 inclusive.
2002-16-11Boeing Model 777 Series AirplanesSep 20, 2002Airframe (777-224)Certain serial numbers: 777 1–263. Only with: Applies by line numbers 1 through 263 inclusive.
2002-11-06Boeing Model 777 Series AirplanesJul 10, 2002Airframe (777-224)Certain serial numbers: 777 1–369. Only with: Applies to line numbers 1 through 369 inclusive.
2001-22-13Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes; and Model 747, 757…Dec 6, 2001Airframe (777-224)Serial numbers per Boeing Service Bulletin 737-27A1214 Rev 1; Alert Service Bulletins 747-27A2373, 757-27A0129, 767-27A0159, 777-27A0030
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (777-224)Serial numbers per Boeing Service Bulletins 737-25-1371 Rev 2, 737-25-1407, 747-25-3196 Rev 1, 777-25-0111 Rev 1
2001-10-14Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJun 8, 2001Airframe (777-224)Serial numbers per Boeing Special Attention Service Bulletins 737-35-1076, 737-35-1077, 747-35-2111, 757-35-0021, 757-35-0022, 767-35-0043, 767-35-0044, 777-35-0008, all dated March 1, 2001. Only with: Equipped with chemical oxygen generators.
2001-03-09Boeing Model 777 Series AirplanesMar 23, 2001Airframe (777-224)Certain serial numbers: 777 1–155. Only with: Limited by line numbers 1 through 155 inclusive.
2000-23-28Boeing Model 777 Series AirplanesJan 2, 2001Airframe (777-224)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (777-224)Certain serial numbers: 737 1–2984; 757 1–798; 767 1–682; 777 1–083. Only with: Ranges are line numbers; equipped with Puritan-Bennett passenger and flight attendant oxygen masks as listed in Boeing Service Bulletins 737-35-1049, 757-35-0014, 767-35-0033, or 777-35-0005.
2000-14-05Boeing Model 777 Series AirplanesJul 28, 2000Airframe (777-224)Serial numbers per Boeing Alert Service Bulletin 777-28A0019, dated April 27, 2000
2000-07-08Boeing Model 777 Series AirplanesMay 16, 2000Airframe (777-224)Certain serial numbers: 777 2–103; 777 105–119; 777 121–161; 777 163–177; 777 179–186. Only with: Applicability limited by line numbers, not serial numbers.
2000-01-14Boeing Model 777 Series AirplanesFeb 18, 2000Airframe (777-224)Serial numbers per Boeing Service Bulletin 777-57A0029, Revision 1, dated August 12, 1999
99-17-02Boeing Model 777 Series AirplanesSep 17, 1999Airframe (777-224)Serial numbers per Boeing Service Bulletin 777-53A0018, Revision 1, dated February 11, 1999 (Groups 1 and 2)
99-15-10Boeing Model 777 Series AirplanesAug 5, 1999Airframe (777-224)Only with: Equipped with an engine-driven pump supply shutoff valve having Boeing part number S271W741-21.
99-13-05Boeing Model 777 Series AirplanesJul 8, 1999Airframe (777-224)Serial numbers per Boeing Alert Service Bulletin 777-57A0008, dated March 25, 1999
99-10-14Boeing Model 747-400, 757, 767, and 777 Series Airplanes Equipped With AlliedSignal…Jun 17, 1999Airframe (777-224)Only with: Equipped with AlliedSignal RIA-35B Instrument Landing System (ILS) receivers, P/N 066-50006-0101.
98-13-12 R1Boeing Model 737, 747, 757, 767, and 777 Series AirplanesDec 28, 1998Airframe (777-224)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368 Revision 2, 757-27A0128, 767-27A0156, 777-27A0029 Revision 1
98-13-12Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJul 6, 1998Airframe (777-224)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368, 757-27A0128, 767-27A0156, and 777-27A0029, dated March 26, 1998
97-10-02Boeing Model 777 Series AirplanesMay 21, 1997Airframe (777-224)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (67)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Lights · battery pack · no testJul 28, 2026

    DURING OPERATIONAL TEST OF THE EMERGENCY LIGHTS, SEVERAL LIGHTS DO NOT TURN ON AT L3 DOOR AND CEILING NEAR TO L3 DOOR. FAULT ISOLATION PERFORMED IAW FIM 33-51 TASK 806. FOUND M33405 EMERGENCY POWER SUPPLY INOPERATIVE. M33405. BATTERY PACK REPLACED IAW AMM 33-51-06-960-802. TEST OK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fire protection · smoke detector · false activationFeb 12, 2026

    DUE TO RECENT REPORTS OF LOWER PILOT CREW REST SMOKE DETECTOR ALARMING WITH NO EVIDENCE OF SMOKE/FUMES, REPLACED FLIGHT CREW REST LOWER SMOKE DETECTOR PER TECH SUPPPORT REQUEST. REF AMM 26-14-11. OPS CHECK GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · oven · odorFeb 12, 2026

    PILOT STATES APROX 10 MIN UNTIL LANDING RECEIVED CREW REST SMOKE FD EICAS MESSAGE WITH AURAL ALARM IN CREWREST SPACE. NO FIRE/SMOKE INDICATIONS ON THE FLIGHT DECK. REPEAT FROM PREVIOUS WRITEUP FROM LAST FLIGHT. UPDATED SDR INFO AND ADDED PICS UPDATED SDR INFO AND ADDED PICS REMOVED AND REPLACED…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Equipment and furnishings · girt bar · no discrepancyFeb 2, 2026

    L1 & R3 DOORS YELLOW GIRT BAR INDICATING FLAG NOT FULLY VISIBLE. INSPECTED THE DOOR GIRT BAR INDICATION FLAGS WHILE FLIGHT ATTENDANTS ARMED DOOR. NO FAULT FOUND. FLAGS ARE IN VIEW. DOORS CONFIRMED ARMED IAW AMM 52-11-00. NO FURTHER MX ACTION REQUIRED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fire protection · smoke detector · false activationJan 26, 2026

    SMOKE CREW REST & FLT DECK, ACCOMPANIED BY AN ALARM NO SMOKE OR FUMES NOTED FLT CREW REST SMOKE DETECTION, OPS TEST PERFORMED IAW AMM: 26-14-10-710-801 REV 106.TEST SATIS. NO MESSAGE AT CSCP.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Navigation · indicator · faultedNov 17, 2025

    STBY ATTITUDE INDICATOR FAILED. R & R ISFD OPS CHECKED, TEST PASSED, AND ROLL POINTER VISUAL ALIGNMENT WITHIN TOLERANCE IAW AMM 34-24-02.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · indicator · faultedMay 7, 2025

    DOOR 4R AFT GIRT BAR YELLOW INDICATOR ONLY PARTIALLY VISIBLE ARMED DOOR. GIRT BAR FULLY ENGAGED AND YELLOW INDICATOR FULLY VISIBLE. DIS ARMED DOOR AND YELLOW INDICATOR FULLY STOWED. OK TO CONTINUE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · spring · missingMay 1, 2025

    L/H MAIN LANDING GEAR UPLOCK HOOK FWD SPRING MISSING. TOOL NEEDED UPDATED P/N: J32090-69 OR -70 (OPTIONAL) TO INSTALL NEW SPRING PER AMM 32-32-20-400-801. SPRING REQUIRED IS ITEM 60 IPC 32-32-03-01A. ESDR FORM COMPLETED. GENERAL VISUAL INSPECTION CARRIED OUT IN L/H WHEEL WELL & LEFT LANDING GEAR…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · lock · faultedApr 27, 2025

    DOOR FLIGHT LOCK 2L EICAS STATUS #2 LEFT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND/FLT LK RLY/SENS OR DISAGREEMENT. PSEU 2 (L2) CURRENT FAULT IS ACTIVE. COMPLIED WITH DDP REF LOGPAGE 4621925, 2L DOOR LOCK ACTUATOR REPLACED STATUS MSG CLEARED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · idg · faultedNov 22, 2024

    ELEC GEN SYS L EICAS STATUS IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTR OL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCU RRED. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2431661 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: GENERATOR…

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Showing the 10 most recent of 67 reports.

Related aircraft

Show all 8 related aircraft
All 22 registered Boeing 777-224 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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