The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N604US

N604US is not currently registered. It was last assigned to a Diamond Aircraft DA 40 built in 2006. The FAA cancelled the registration on May 10, 2010 when the aircraft was exported to Australia. The last status on file was "valid registration". The number has been on and off the register 2 times.

Diamond Aircraft DA 40 cancelled May 10, 2010

Serial number
40.674
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
2006
Last status
Valid registration
Exported to
Australia
Certificate issued
October 23, 2009
Last FAA action
October 23, 2009
Last owner
Premier Aircraft Sales INC (Corporation)
Fort Lauderdale, FL
Airworthiness
Special flight permit · Operation in excess of maximum certificated

Boeing 747-151 cancelled August 2, 1994

Serial number
19781
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
July 1, 1970
Last FAA action
January 27, 1992
Last owner
Northwest Airlines INC (Corporation)
St Paul, MN
Airworthiness
None on file

NTSB accident and incident record under N604US

SEA91IA219Incident on August 22, 1991 at Seattle, WA: minor injuries, minor damage.

Aircraft on the NTSB record: Boeing 747-151 · serial 19781

A FIRE IN THE NUMBER 4 ENGINE, RESULTING FROM A FUEL LEAK AT THE MAIN FUEL CONTROL UNIT, DUE TO IMPROPER MAINTENANCE BY UNKNOWN/UNDETERMINED PERSON. THE L5 EMERGENCY EXIT FAILED TO OPERATEE DUE TO A BROKEN PLASTIC PULLEY GUARD IN THE SLIDE RELEASE MECHANISM.

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