Registry / Boeing / 757-224 / N12125

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N12125 V

Boeing 757-224 · 1998 · Chicago, IL

This aircraft — FAA registration facts

N12125 is a 1998 Boeing 757-224 (serial 28967), registered to United Airlines Inc (corporation) in Chicago, IL. Its FAA registration is recorded as v and expires June 2030; the airworthiness certificate dates from January 1998 (28 years ago). It carries 2 Rolls-Royc RB-211 SERIES engines rated at 22,000 lbf each (44,000 lbf total), the engine on 93% of registered Boeing 757-224s. Its Mode-S transponder broadcasts the ICAO 24-bit address A05A25. It is one of 40 Boeing 757-224 aircraft on the FAA registry. United Airlines Inc holds 1,212 aircraft on the registry.

Registered owner
United Airlines Inc
Owner type
Corporation
Based in
Chicago, IL
Serial number
28967
Year built
1998 · 28 yrs old
Airworthiness class
Standard – Transport
FAA status
V
Mode-S / ICAO24
A05A25 · 50055045 octal
Certificate issued
Jun 29, 2023
Airworthiness date
Jan 30, 1998
Last FAA activity
Jun 29, 2023
Registration expires
Jun 30, 2030
FAA region
Central

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
Rolls-Royc RB-211 SERIES
Engine type
Turbo-fan
Rated thrust
22,000 lbf × 2 (44,000 lbf total)
FAA engine code
54555

37 of the 40 registered Boeing 757-224 carry this engine (93%), across 4 engine variants on the type.

Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.

Community facts about N12125

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Flight history & live tracking recent positions on file

ICAO24: a05a25
Last known — 1 day ago UAL399
Observed 2026-09-21 09:56:21 MST
Auto-refresh • Updated 0s ago
Ground speed
468 kt
Altitude (baro)
34,825 ft
Track
176.0°
Squawk
Wind / OAT
Autopilot target
Lat 41.68976, Lng -73.90944
Map loads when scrolled into view …
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Aircraft Type — ACFTREF 1384958

Boeing 757-224
Engines: 2
Type: jet
Seats: 178
Category: Standard

Engine — CODE 54555

Manufacturer: Rolls-Royc
Model: RB-211 SERIES
Type: Turbo-fan
Thrust: 22,000 lbs

FAA Registration Record

N-Number: N12125
Serial Number: 28967
Year Manufactured: 1998
ACFTREF Code: 1384958
Engine Code: 54555
Status: V (V)
Certification: Standard – Transport
Type Aircraft: Fixed Wing Multi Engine (5)
Type Engine: Turbo-fan (5)
Source: master

Documents & resources

Commonly available reference sources for the Boeing 757-224. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Boeing 757-224 model overview, reviews & photos →

These are commonly available reference sources. FerryFlight Hub does not provide sample or generated documents on this page.

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Transponder / ADS-B

Mode S (octal): 50055045
ICAO 24-bit (hex): A05A25

Registrant

United Airlines Inc
Corporation
View all 1,212 aircraft registered to this owner →
233 S Wacker Dr
Chicago, IL, 606067147
FAA Region: Central

Key Dates

Certificate Issued Jun 29, 2023
Airworthiness Jan 30, 1998
Expiration Jun 30, 2030
Last Activity Jun 29, 2023
Data as of Sep 7, 2026

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