Staging copy. The live site is at https://staging.data.eflight.com.
eFlight RegistryFAA data, updated daily
Registered aircraft · FAA record as of September 25, 2026
N94BS

Switzer Robert W RV-4

N94BS is a Switzer Robert W RV-4, a fixed-wing airplane with one motor with a piston engine, built in 1989. It has 2 seats. It is registered to co-owned owners in Yardley, Pennsylvania. The registration is valid: it was issued on August 7, 2021 and expires on August 31, 2028. It holds an experimental airworthiness certificate for amateur built, dated April 9, 1990.

Aircraft

Maker
Switzer Robert W
Model
RV-4
Serial number
2
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Lycoming 0-320 SERIES · 180 hp
Seats
2
Year built
1989
Transponder code
AD0AF9 (octal 53205371)

Registration

Status
Valid registration
Certificate issued
August 7, 2021
Expires
August 31, 2028
Last FAA action
June 3, 2023
Airworthiness
Experimental · Amateur built · April 9, 1990
FAA region
Eastern
FAA record id
00664431

Owner as the FAA publishes it

Name
Mcdonnell John T
Type
Co-owned
Address
23 Glen Dr
Yardley, PA 19067-1911
Co-owners
Pearson Jeffrey T

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data