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Registered aircraft · FAA record as of September 25, 2026
N139WS

Aero Vodochody L39C

N139WS is an Aero Vodochody L39C, a fixed-wing airplane with one motor with turbofan engines, built in 1984. It has 1 seat. It is registered to National Test Pilot School, a corporation in Mojave, California. The registration is valid: it was issued on October 28, 2015 and expires on October 31, 2028. It holds an experimental airworthiness certificate for research and development; crew training, dated December 3, 2025.

Aircraft

Maker
Aero Vodochody
Model
L39C
Serial number
432931
Type
Fixed-wing, single engine
Power
Turbofan, 1 motor · Ivchenko AI-25TL · 3,792 lb thrust
Seats
1
Year built
1984
Transponder code
A09EA5 (octal 50117245)

Registration

Status
Valid registration
Certificate issued
October 28, 2015
Expires
October 31, 2028
Last FAA action
June 16, 2023
Airworthiness
Experimental · Research and development; Crew training · December 3, 2025
FAA region
Western-Pacific
FAA record id
00006841

Owner as the FAA publishes it

Name
National Test Pilot School
Type
Corporation
Address
1030 Flight Line Ste 72
Mojave, CA 93501-1679

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