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Aircraft record

N798UA1998 Boeing 777-222

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:1 NTSB incident (minor damage, Jan 2006)23 ADs may apply186 service difficulty reports

Registration
Valid
expires Apr 30, 2029
Based in
Chicago, IL
owner city / state
Owners
1
since 2013
NTSB events
1
minor, 2006
ADs may apply
23
confirm with A&P
Service reports
186
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Apr 1, 2013
Expires
Apr 30, 2029
Airworthiness
Standard · Transport
Airworthiness date
Feb 27, 1998

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
777-222
Year
1998
Serial number
26928
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
AAD780

Engine

Make and model
P&W Pw4000 Ser
Type
Turbo-fan
Power
60,000 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. 2013 – nowUnited Airlines INCChicago, IL · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Incident · minor damage

Jan 19, 2006 · Denver, CO

the truck driver's failure to maintain clearance from the airplane and the boom operator's failure to adequately clear the boom from the airplane. Contributing to the accident was the low visibility due to snow and mist.

Damage
Minor
Injuries
None
Report
DEN06IA034

From NTSB records; matched by serial number.Read NTSB report (search CAROL for DEN06IA034)

Accident history for this model

ADs published since 1998 that may apply (23)

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
2005-12-10Boeing Model 747-200F and -400 Series Airplanes; Model 767-400ER Series Airplanes; and…Jul 20, 2005Airframe (777-222)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 (777-222)Serial numbers per Boeing Service Bulletin 777-25-0191, dated September 13, 2001
2003-19-02Boeing Model 777 Series AirplanesOct 8, 2003Airframe (777-222)Certain serial numbers: 1–412. Only with: Limited by line numbers 1 through 412 inclusive.
2003-12-01Boeing Model 777 Series AirplanesJul 17, 2003Airframe (777-222)
2002-16-15Boeing Model 777 Series AirplanesSep 26, 2002Airframe (777-222)Certain serial numbers: 777 1–266. Only with: Limited to line numbers 1 through 266 inclusive.
Show all 23 ADs
ADSubjectEffectiveApplies to
2002-16-11Boeing Model 777 Series AirplanesSep 20, 2002Airframe (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (777-222)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 (777-222)Serial numbers per Boeing Alert Service Bulletin 777-28A0019, dated April 27, 2000
2000-07-08Boeing Model 777 Series AirplanesMay 16, 2000Airframe (777-222)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 (777-222)Serial numbers per Boeing Service Bulletin 777-57A0029, Revision 1, dated August 12, 1999
99-17-02Boeing Model 777 Series AirplanesSep 17, 1999Airframe (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)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 (777-222)

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

Service Difficulty Reports (186)

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.

  • Landing gear · selector valve · faultedJul 17, 2026

    LANDING GEAR DISAGREE EICAS. NOSE GEAR DID NOT COME DOWN INITIAL LY DEBRIEFED CREW , PILOTS ADVISED ME ON APPROACH THAT AT 1600 FT CALLED FOR GEAR DOWN. THE MLG CAME DOWN & LOCKED ON , BUT THE NOSE GEAR DIDN'T . THEY DID A GO AROUND WENT AROUND AT 1000FT . THEN AT 2000 FT THERE WAS A MLG EICAS…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · slide · unraveledJun 8, 2026

    WHILE WORKING ON DOOR 2LH, SLIDE RAFT OPEN BUT NOT DEPLOYED. SLIDE REMOVED IAW AMM 25-66-01-000-801. ESCAPE SLIDE RENDER SAFETY CHECKLIST. INSTALLED L2 DOOR MOUNTED ESCAPE SLIDE IAW AMM 25-66-01-400-601. INSTALLED L2 DOOR MOUNTED ESCAPE SLIDE IAW AMM 25-66-01-400-601. COMPLIED WITH ALL…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · structure · contaminatedJan 2, 2026

    DUE TO THE AMOUNT OF STANDING WATER AND ICE, INSPECTION OF THE FORWARD BILGE ARE IS NEEDED PER TRM ECRA 2011-01000. PARTICULARY BETWEEN BS 600 & 900. WITH WATER LEAK ORIGINATING BEHIND RT CARGO WALL LINER AT BS 800. SUPPLIED HOT CONDITIONED AIR WITH APU TO THE CABIN AND FORWARD CARGO IAW AMM…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Lights · battery pack · dischargedDec 8, 2025

    M/D L3 DOOR AFT EMERGENCY LIGHT POWER SUPPLY M33401 BATTERY PACK FOUND LOW CAPACITY. RAISED FROM TASK CARD 86-3350-1-0002. REPLACED M/D L3 DOOR AFT EMERGENCY LIGHT POWER SUPPLY M33401 BATTERY PACK AND PERFORMED NEW BATTERY PACK INSTALLATION TEST & CAPACITY CHECK. THE RESULT NORMAL IAW AMM…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · battery pack · dischargedDec 8, 2025

    M/D R3 DOOR FWD EMERGENCY LIGHT POWER SUPPLY M33404 BATTERY PACK FOUND LOW CAPACITY. RAISED FROM TASK CARD 86-3350-1-0002. REPLACED M/D R3 DOOR FWD EMERGENCY LIGHT POWER SUPPLY M33404 BATTERY AND PERFORMED NEW BATTERY PACK INSTALLATION TEST & CAPACITY CHECK. THE RESULT NORMAL IAW AMM…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Structures (general) · none · noneNov 7, 2025

    ETOPS PRE-DEPARTURE SERVICE CHECK REQUIRED. ALL PERSONNAL INVOLVED WITH ACCOMPLISHING THE PDSC MUST HAVE THEIR EMPLOYEE NUMBER E NTERED ON THIS LOG PAGE. COMPLIED WITH ETOPS PREDEPARTURE CHECKS AS REQUIRED. WITHOUT TIRE PRESSURE CHECK DUE TO IRREGULAR OPS PER 05-01-02 EPDSC EXPIRES AT 04:30-08…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · oven · contaminatedOct 20, 2025

    OVEN 707 IN AFT GALLEY WAS SMOKING. OVEN 707 INSERT SOILED IN BURNED FOOD DEBRIS. OVEN REQUIRES CLEAN WHEN TIME ALLOWS. OVEN DEACTIVATED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Ice and rain protection · anti-ice valve · faultySep 21, 2025

    WING ANTI ICE VALVE R EICAS STATUS RIGHT WING ANTI-ICE (WAI) VALVE FAILURE. R WING ANTI ICE VALVE FAILS CLOSED WHEN SELECTED ON REMOVED & REPLACED R WAI VALVE. R WAI VALVE INSTALLATION TEST OK. CONFIRMED NO STATUS MSG. PER AMM TASK 30-11-03. ANTI-ICE VALVE LEAK CHECK PERFORMED WITH MANIFOLD…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lamp · failedAug 31, 2025

    SMOKE SMELL INTERIOR AFT LEFT MUST FOLLOW AND REFERENCE AMM 05-51-50 CONDITIONAL INSPECTION - SMOKE OR FUMES IN CABIN. ALSO SUBMIT REQUIRED SMOKE/ODOR IN THE PLAN QUESTIONNAIRE FORM 46-6020 PERFORMED ALL TEST. ALL LIGHTS OPS NORMAL IN THE CABIN. FOUND ROM 46ABC CEILING LIGHT BEING INOP WHERE FA…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · girt bar · dirtyAug 15, 2025

    GIRT BAR INDICATOR VIEW PORTS IN 1L IS DIRTY CLEANED VIEW PORT FOR GIRT BAR BOTH SIDES FWD AND AFT. OF DOOR. CAN SEE YELLOW INDICATOR.

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

Showing the 10 most recent of 186 reports.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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