Aircraft Description
Model Year
1999
Manufacturer
BOEING
Model
737-724
Type Aircraft
Fixed Wing Multi Engine
ICAO Type Code
B37M737 MAX 7
Weight Class
20,000+ lbs
Airworthiness Date
April 21, 1999
Classification
Standard Transport Category
Type Registration
Corporation
Status
Valid Registration
Cert Issue Date
April 23, 1999
Registered Owner
Name
UNITED AIRLINES INC
Address
ATTN: TREASURER - WILLIS TOWER
233 S WACKER DR
City
CHICAGO
State / Zip Code
Illinois60606-7147
Country
United States
Operator / Airline
Operator
United Airlines Inc
ICAO Code
UAL
Powerplant & Avionics
Engine Type
Turbo-fan
Number of Engines
2
Engine Manufacturer
CFM INTL.
Engine Model
CFM56 SERIES
Horsepower
2200 HP
Mode S Code (Oct)
50353075
Mode S Code (Hex)
A1D63D
Additional Details
Registration
N21723
Serial Number
28790
Number of Engines
2
Number of Seats
149
Expiration Date
January 31, 2030
Last Action Date
November 3, 2025
Last Update Date
January 19, 2026
Unique ID
00343647
Last Known Position
Data Source
Data provided by the US Federal Aviation Administration. View on FAA.gov
Last updated: 2026-03-15 01:32:20 UTC