N4521S is not currently registered. It was last assigned to a Robinson Helicopter R44 II built in 2012. The FAA cancelled the registration on August 28, 2013. The last status on file was "sale reported, canceled". The number has been on and off the register 3 times.
Robinson Helicopter R44 II cancelled August 28, 2013
- Serial number
- 13279
- Type
- Rotorcraft · Piston (reciprocating)
- Year built
- 2012
- Last status
- Sale reported, canceled
- Certificate issued
- —
- Last FAA action
- May 16, 2012
- Last owner
- Sale Reported (Individual)
Fort Lauderdale, FL - Airworthiness
- Standard · Normal
Cameron Balloons Us A-105 cancelled February 12, 2002
- Serial number
- 5909
- Type
- Balloon · None
- Year built
- 1993
- Last status
- Valid registration
- Exported to
- Japan
- Certificate issued
- June 19, 2001
- Last FAA action
- June 19, 2001
- Last owner
- Shuckhart David W (Individual)
Belen, NM - Airworthiness
- Standard · Balloon
Beech V35B cancelled March 9, 1990
- Serial number
- D9459
- 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
- —
- Last FAA action
- —
- Last owner
- Withheld
- Airworthiness
- None on file
NTSB accident and incident record under N4521S
Aircraft on the NTSB record: Beech V35B · serial D9459
FUEL TANK SELECTOR VALVE BEING INADVERTENTLY SWITCHED OFF AND THE PILOT'S EMERGENCY PROCEDURES INADEQUATE IN DISCOVERINGAND CORRECTING THE PROBLEM. THIS RESULTED IN THE FUEL STARVATION RELATED POWER LOSS. CONTRIBUTING TO THE ACCIDENT WAS THE ROUGH TERRAIN ON WHICH THE FORCED LANDING WAS PERFORMED AND THE FENCE WHICH WAS CONTACTED.
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