The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N9721B

N9721B is not currently registered. It was last assigned to a Cessna 172RG. The FAA cancelled the registration on July 28, 1994. The last status on file was "triennial registration form was mailed and has not been returned by the post office".

Cessna 172RG cancelled July 28, 1994

Serial number
172RG0991
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Triennial registration form was mailed and has not been returned by the Post Office
Certificate issued
January 7, 1986
Last FAA action
May 18, 1994
Last owner
Mccartney Gregory D (Partnership)
La Honda, CA
Airworthiness
None on file

NTSB accident and incident record under N9721B

LAX91FA074Accident on January 15, 1991 at Hayward, CA: fatal, destroyed (1 fatal).

Aircraft on the NTSB record: Cessna 172RG · serial 172RG0991

THE PILOT'S FAILURE TO MAINTAIN ALTITUDE. CONTRIBUTING FACTORS RELATED TO THE PILOT'S IMPROPER VFR PROCEDURES AND HIS MISJUDGED EVALUATION OF THE WEATHER IN DAYLIGHT CONDITIONS. ADDITIONAL FACTORS RELATED TO THE PRESENCE OF LOW CLOUDS AND TO THE RESTRICTED VISIBILITY.

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