N4399J is not currently registered. It was last assigned to a Shaffer William C QUICKSILVER MX II SP built in 2000. The FAA cancelled the registration on September 8, 2014. The last status on file was "registration expired, pending cancellation". The number has been on and off the register 2 times.
Shaffer William C QUICKSILVER MX II SP cancelled September 8, 2014
- Serial number
- 3916887
- Type
- Glider · Two-cycle piston
- Year built
- 2000
- Last status
- Registration expired, pending cancellation
- Certificate issued
- December 20, 2007
- Last FAA action
- December 20, 2007
- Last owner
- Shaffer William C (Individual)
Fort Bragg, CA - Airworthiness
- Experimental · Operating light-sport previously certificated
Piper PA-28-140 cancelled December 8, 1982
- Serial number
- 28-22791
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- 1967
- Last status
- Valid registration
- Certificate issued
- March 1, 1979
- Last FAA action
- —
- Last owner
- Dunn Douglas R (Individual)
Modesto, CA - Airworthiness
- None on file
NTSB accident and incident record under N4399J
Aircraft on the NTSB record: Shaffer William C QUICKSILVER MX II SP · serial 3916887
The pilot's inadequate compensation for the gusty crosswind conditions and failure to maintain runway alignment while landing.
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