Registry / Boeing / 737-9 / N37504

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N37504 V

Boeing 737-9 · 2018 · Chicago, IL

This aircraft — FAA registration facts

N37504 is a 2018 Boeing 737-9 (serial 43435), registered to United Airlines Inc (corporation) in Chicago, IL. Its FAA registration is recorded as v and expires May 2028; the airworthiness certificate dates from May 2018 (8 years ago). It carries 2 Cfm Intl LEAP-1B28 SER engines rated at 29,317 lbf each (58,634 lbf total), the engine on 87% of registered Boeing 737-9s. Its Mode-S transponder broadcasts the ICAO 24-bit address A448D3. It is one of 101 Boeing 737-9 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
43435
Year built
2018 · 8 yrs old
Airworthiness class
Standard – Transport
FAA status
V
Mode-S / ICAO24
A448D3 · 51044323 octal
Certificate issued
May 21, 2018
Airworthiness date
May 18, 2018
Last FAA activity
May 12, 2023
Registration expires
May 31, 2028
FAA region
Central

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

Engine on this aircraft

Engine
Cfm Intl LEAP-1B28 SER
Engine type
Turbo-fan
Rated thrust
29,317 lbf × 2 (58,634 lbf total)
FAA engine code
13120

80 of the 92 registered Boeing 737-9 carry this engine (87%), across 2 engine variants on the type.

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

Community facts about N37504

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Flight history & live tracking recent positions on file

ICAO24: a448d3
Last known — 2 weeks ago UAL332
Observed 2026-09-10 05:27:56 MST
Auto-refresh • Updated 0s ago
Ground speed
403 kt
Altitude (baro)
24,075 ft
Track
234.0°
Squawk
—
Wind / OAT
—
Autopilot target
—
Lat 40.21852, Lng -75.56799
Map loads when scrolled into view …
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Aircraft Type — ACFTREF 138469A

Boeing 737-9
Engines: 2
Type: jet
Seats: 48
Category: Standard

Engine — CODE 13120

Manufacturer: Cfm Intl
Model: LEAP-1B28 SER
Type: Turbo-fan
Thrust: 29,317 lbs

FAA Registration Record

N-Number: N37504
Serial Number: 43435
Year Manufactured: 2018
ACFTREF Code: 138469A
Engine Code: 13120
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 737-9. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

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Transponder / ADS-B

Mode S (octal): 51044323
ICAO 24-bit (hex): A448D3

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 May 21, 2018
Airworthiness May 18, 2018
Expiration May 31, 2028
Last Activity May 12, 2023
Data as of Sep 7, 2026

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