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Aircraft record

N121091994 Boeing 757-224

Registration validUnclaimedSource: FAA, updated Oct 18, 2026

Safety record in brief:No NTSB accidents or incidents since 198229 ADs may apply162 service difficulty reports

Registration
Valid
expires Oct 31, 2027
Based in
Chicago, IL
owner city / state
Engine
RB-211 SERIES · 22,000 lb thrust
Rolls-Royc
Owners
1
since 2014
NTSB events
None
since 1982
ADs may apply
29
confirm with A&P
Service reports
162
since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Oct 15, 2014
Expires
Oct 31, 2027
Airworthiness
Standard · Transport
Airworthiness date
Dec 5, 1994

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
757-224
Year
1994
Serial number
27299
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
178
Engines
2
Max takeoff weight
20,000 and over lb
Mode S code
A059E3

Engine

Make and model
Rolls-Royc Rb-211 Series
Type
Turbo-fan
Power
22,000 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. 2014 – nowUnited Airlines INCChicago, IL · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 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 (29)

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
2005-02-10Boeing Model 757 Series Airplanes Equipped With Rolls Royce Model RB211 EnginesMar 7, 2005Airframe (757-224)Certain serial numbers: 757 1–1018. Only with: Line numbers 1 through 1018 inclusive; equipped with Rolls Royce Model RB211 engines.
2004-12-07Boeing Model 757 Series Airplanes Equipped With Rolls Royce RB211 EnginesJul 21, 2004Airframe (757-224)Certain serial numbers: 757 1–735. Only with: Equipped with Rolls Royce RB211 engines; line numbers 1 through 735 inclusive.
2003-18-05Boeing Model 757 Series Airplanes Powered by Pratt & Whitney EnginesOct 16, 2003Airframe (757-224)Certain serial numbers: 757 1–735. Only with: Powered by Pratt & Whitney engines; line numbers 1 through 735 inclusive.
2003-14-08Boeing Model 737-600, 737-700, 737-700C, 737-800, 737-900, 757, and 767 Series AirplanesAug 18, 2003Airframe (757-224)
2002-24-51Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes; Model 747 Series…Jan 7, 2003Airframe (757-224)
Show all 29 ADs
ADSubjectEffectiveApplies to
2002-19-52Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes; Model 747 Series…Sep 30, 2002Airframe (757-224)
2002-10-02Boeing Model 757 Series AirplanesJun 20, 2002Airframe (757-224)Serial numbers per Boeing Service Bulletin 757-28-0057 or 757-28-0059, both Revision 1, dated February 28, 2002
2002-02-04Boeing Model 757 Series AirplanesMar 19, 2002Airframe (757-224)Serial numbers per Boeing Service Bulletins 757-29-0058 and 757-29-0059, both dated November 9, 2000
2001-23-14Boeing Model 757 Series AirplanesDec 31, 2001Airframe (757-224)
2001-22-13Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes; and Model 747, 757…Dec 6, 2001Airframe (757-224)Serial numbers per Boeing Service Bulletin 737-27A1214 Rev 1; Alert Service Bulletins 747-27A2373, 757-27A0129, 767-27A0159, 777-27A0030
2001-20-12Boeing Model 757 Series AirplanesNov 20, 2001Airframe (757-224)Certain serial numbers: 757 1–764. Only with: Limited to line numbers 1 through 764 inclusive.
2001-20-11Boeing Model 757 Series AirplanesNov 15, 2001Airframe (757-224)
2001-13-15Boeing Model 757 Series Airplanes Equipped with Rolls Royce EnginesAug 7, 2001Airframe (757-224)Only with: Equipped with Rolls Royce engines.
2001-10-14Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJun 8, 2001Airframe (757-224)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.
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (757-224)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.
2000-04-18Boeing Model 757 Series AirplanesApr 4, 2000Airframe (757-224)Serial numbers per Boeing Service Bulletin 757-27A0127, Revision 1, dated September 2, 1999
99-23-21Boeing Model 757 Series AirplanesDec 21, 1999Airframe (757-224)Serial numbers per Boeing Service Bulletin 757-76-0009, Revision 1, dated December 3, 1998, or Boeing Service Bulletin 757-78-0012, dated August 31, 1989
99-10-14Boeing Model 747-400, 757, 767, and 777 Series Airplanes Equipped With AlliedSignal…Jun 17, 1999Airframe (757-224)Only with: Equipped with AlliedSignal RIA-35B Instrument Landing System (ILS) receivers, P/N 066-50006-0101.
98-26-04Boeing Model 757 Series AirplanesDec 31, 1998Airframe (757-224)Serial numbers per Boeing Alert Service Bulletin 757-28A0045, Revision 1, dated November 19, 1998
98-13-12 R1Boeing Model 737, 747, 757, 767, and 777 Series AirplanesDec 28, 1998Airframe (757-224)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 (757-224)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368, 757-27A0128, 767-27A0156, and 777-27A0029, dated March 26, 1998
98-03-10Boeing Model 737, 747, 757, and 767 Series AirplanesFeb 19, 1998Airframe (757-224)Certain serial numbers: 737 1–2836; 747 1–1104; 757 1–731; 767 1–642. Only with: Equipped with non-powered IPECO pilots' seats; ranges are line position numbers.
97-18-04Boeing Model 757 Series Airplanes Equipped With Rolls Royce EnginesSep 17, 1997Airframe (757-224)Only with: Equipped with Rolls Royce engines.
97-18-05Boeing Model 757 Series Airplanes Equipped With Pratt & Whitney EnginesSep 17, 1997Airframe (757-224)Only with: Equipped with Pratt & Whitney engines.
97-15-09Boeing Model 757 and 767 Series AirplanesAug 1, 1997Airframe (757-224)
97-09-06Boeing Model 757 Series AirplanesMay 15, 1997Airframe (757-224)
96-19-17Boeing Model 757 Series AirplanesOct 7, 1996Airframe (757-224)Serial numbers per Boeing Alert Service Bulletin 757-24A0079, dated August 8, 1996
95-10-13Boeing Model 757 Series Airplanes Equipped With Rolls Royce EnginesJun 15, 1995Airframe (757-224)Serial numbers per Boeing Alert Service Bulletin 757-54A0030, Revision 1, dated December 20, 1993. Only with: Equipped with Rolls Royce engines.
95-01-05Boeing Model 757 Equipped With Pratt & Whitney Model PW2000 Series EnginesJan 20, 1995Airframe (757-224)Only with: Equipped with Pratt & Whitney Model PW2000 series engines.

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

Service Difficulty Reports (162)

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 · control lever · faultedSep 13, 2026

    GEAR DISAGREE ON FINAL THREE GEAR LIGHTS GEAR WARNING LIGHT WENT OUT ON THE GND PER INBOUND CREW - WHEN GEAR SELECTED DOWN - ALL THREE GEAR DOWN GREEN LIGHTS AND GEAR DISAGREE RED LIGHT. RETRACTED GEAR AND CYCLED AGAIN. ON 2ND ATTEMPT SAME RESULT. USED GEAR CANCEL OVERRIDE & LANDED. ONCE WEIGHT ON…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lamp · no testAug 1, 2026

    WHILE ACCOMPLISHING EMERGENCY LIGHT TEST, FOUND LIGHT OUT ABOVE SEAT 20A RELAMPED REF AMM 33-51-01. OPS CHECKED GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · oven · shortedMar 14, 2026

    DURING CRUISE A FWD GALLEY OVEN SHORTED. ELECTRICAL SMOKE AND AN D FUMES WERE OBSERVED. PLACED OVEN 205 ON NEF CIRCUIT BREAKER PULLED AND COLLARD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Electrical power · gcu · faultyJul 31, 2025

    ON ROTATION CAP FLT INSTRUMENTS BLANKED OUT. LT GEN CONTACTOR LIGHT ON RESET OK LOCKED CAPTAIN NOTIFIED THAT INSTRUMENTS CAME BACK ON WHEN LT GEN WAS RESET INSTRUMENTS OPS NORMAL REST OF FLT. APPEARS PIREP IS REFERRING TO LT GEN CONT OFF LIGHT BEING ILLUMINATED. PIREPS ON L/PS 5744410, 5742872…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lamp · inoperativeJul 16, 2025

    AFT RIGHT EMERGENCY LIGHT INOPERATIVE ON OVERHEAD BIN. RELAMPED IAW AMM 33-51-05-002-001. OPS TEST GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · fairing · crackedJul 14, 2025

    DUE TO VIBRATION TRENDS ON THE NR 2 ENGINE. WHILE PERFORMING INSPECTION OF INLET & FAN BLADES FOUND SPINNER FAIRING CRACKED. R & R SPINNER FAIRING PER AMM TASK. 72-35-01-404-010-R04 PERFORMED FIM TASK ON NR 2 ENG BVCU 75-32-00/101 (FIG 103), NO FAULTS NOTED. ALSO TPU FIM TASK 75-32-00/101 (FIG…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · nut · damagedJun 5, 2025

    1R ARM LIGHT WOULD NOT ILLUMINATE. NOW 1R WILL NOT DISARM WITH H ANDLE GIRT SLIDERS STUCK HALFWAY. UNABLE TO DISARM OR FULLY ARM. FOUND BROKEN SHAFT ENDPIECE AT BOTTOM OF DOOR. SEE ATTACHED. ITEM #645, IPC REF 52-11-01-28. SPLINED SHAFT, PN 140N2750-1. REF IPC 52-11-20-20, ITEM #100 FOR CRANK…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · sensor · obstructedApr 21, 2025

    DOOR 4L SLIDE LIGHT DOES NOT ILLUMINATE DOOR 4L ALSO DIFFICULT T O ARM. FOUND MILK CAP STUCK BETWEEN LEFT SIDE GIRT BAR AND SENSOR, REMOVED CAP, CYCLED DOOR TO ARM SEVERAL TIMES. OPS CHECK GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine indicating · transmitter · faultedMar 15, 2025

    LOW SPEED REJECT FOR LOSS OF DIGITAL EPR INDICATIONS AND LOSS OF AUTOTHROTTLE E2TOMC APPROVES THE MEL 7711F FOR THE E2 LOW SPEED REJECT FOR LOSS OF DIGITAL EPR INDICATIONS AND LOSS OF AUTOTHROTTLE E2. DDP ACCOMPLISHED WITH THE CREWS ASSISTANCE. DOWNGRADED ACFT TO AUTOLAND LIMIT LAND 2,SRF4730…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · fuel sys · malfunctionedJan 6, 2025

    900LBS OF FUEL MIGRATED FROM RIGHT WNG TANK TO 14.0 W/CENTER TAN K FEEDI NG AND REMAINED AT 14.0KDEBRIEF CREW AND PILOT STAYS THAT ABNORMAL FUEL TRANSFER OCURRED IN THE GROUND AND DURING FLIGHT, AND IT WAS WITHIN LIMITS, DURING FLIGHT PILOTS RAN THE CHECKLIST, AND TURNED OFF BOTH CENTER FUEL…

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

Showing the 10 most recent of 162 reports.

Related aircraft

Show all 8 related aircraft
All 40 registered Boeing 757-224 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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