N604X is not currently registered. It was last assigned to a Shultz Jeffrey D SONEX built in 2006. The FAA cancelled the registration on December 14, 2009. 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.
Shultz Jeffrey D SONEX cancelled December 14, 2009
- Serial number
- 604
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- 2006
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- July 20, 2006
- Last FAA action
- July 21, 2009
- Last owner
- Shultz Jeffrey D (Individual)
Dixon, MO - Airworthiness
- Experimental · Amateur built
Sikorsky S-55B cancelled December 22, 1975
- Serial number
- 55459
- Type
- Rotorcraft · Turboshaft
- Year built
- —
- Last status
- Valid registration
- Certificate issued
- March 8, 1972
- Last FAA action
- —
- Last owner
- Trans Alaska Helicopters INC (Corporation)
Seattle, WA - Airworthiness
- None on file
NTSB accident and incident record under N604X
Aircraft on the NTSB record: Shultz Jeffrey D SONEX · serial 604
The total loss of engine power for undetermined reasons.
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