N4723U is not currently registered. It was last assigned to a Boeing 747-122. The FAA cancelled the registration on May 5, 1998. The last status on file was "triennial registration form was mailed and has not been returned by the post office". The number has been on and off the register 2 times.
Boeing 747-122 cancelled May 5, 1998
- Serial number
- 19882
- Type
- Fixed-wing, multi-engine · Turbofan
- Year built
- —
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- February 10, 1972
- Last FAA action
- September 20, 1995
- Last owner
- United Air Lines INC (Corporation)
Chicago, IL - Airworthiness
- None on file
Cessna 180G cancelled August 24, 1964
- Serial number
- 18051423
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- —
- Last status
- Valid registration
- Exported to
- Canada
- Certificate issued
- —
- Last FAA action
- —
- Last owner
- Cessna Aircraft CO (Corporation)
Wichita, KS - Airworthiness
- None on file
NTSB accident and incident record under N4723U
Aircraft on the NTSB record: Boeing 747-122
The pilot-in-command's inadvertent flight into adverse weather conditions, and the difficulty of obtaining adequate weather forecasts of over-ocean turbulence. Factors contributing to the accident include the presence of clear air turbulence, and the failure of the flight attendant to issue a safety advisory.
A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site