N3521A is not currently registered. It was last assigned to a Quicksilver SPRINT II built in 1993. The FAA cancelled the registration on July 7, 2017. The last status on file was "registration expired, pending cancellation". The number has been on and off the register 4 times.
Quicksilver SPRINT II cancelled July 7, 2017
- Serial number
- A10KAS
- Type
- Fixed-wing, single engine · Two-cycle piston
- Year built
- 1993
- Last status
- Registration expired, pending cancellation
- Certificate issued
- September 18, 2007
- Last FAA action
- September 18, 2007
- Last owner
- Smith Keith A (Individual)
Pierron, IL - Airworthiness
- Experimental · Operating light-sport previously certificated
Cessna 172S cancelled October 22, 2004
- Serial number
- 172S8839
- 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
- July 5, 2001
- Last FAA action
- July 20, 2004
- Last owner
- Flight-Share LLC (Corporation)
Schertz, TX - Airworthiness
- None on file
Bell 206B cancelled March 4, 1977
- Serial number
- 172
- Type
- Rotorcraft · Turboshaft
- Year built
- 1968
- Last status
- Valid registration
- Certificate issued
- February 20, 1975
- Last FAA action
- —
- Last owner
- World Wide Helicopters INC (Corporation)
Wilmington, DE - Airworthiness
- None on file
Piper PA-22-135 cancelled February 24, 1969
- Serial number
- 22-1793
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- —
- Last status
- Valid registration
- Exported to
- Canada
- Certificate issued
- August 31, 1967
- Last FAA action
- —
- Last owner
- Kirby John H Dziubala John Smith Hiram (Corporation)
San Diego, CA - Airworthiness
- None on file
NTSB accident and incident record under N3521A
Aircraft on the NTSB record: Quicksilver Sprint II · serial A10KAS
The total loss of engine power due to a fatigue failure of the crankshaft, attributed to the relative movement between the crankshaft and flywheel assembly.
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