The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N4100S

N4100S is not currently registered. It was last assigned to an Aero Commander 720 built in 1960. The FAA cancelled the registration on November 19, 2012. The last status on file was "registration expired, pending cancellation".

Aero Commander 720 cancelled November 19, 2012

Serial number
720-660-7
Type
Fixed-wing, multi-engine · Piston (reciprocating)
Year built
1960
Last status
Registration expired, pending cancellation
Certificate issued
April 4, 1986
Last FAA action
June 17, 1989
Last owner
Claro Carlo (Individual)
Miami, FL
Airworthiness
Standard

NTSB accident and incident record under N4100S

MIA87LA266Accident on September 30, 1987 at 50 NW San Juan, PR: serious injuries, substantial damage.

Aircraft on the NTSB record: Aero Commander 720 · serial 720-660-7

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