N139WS

Built 1984 · registered US

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Flight activity

(1 tracking legs recorded)

Last 30 days: 0
Last 90 days: 0
Last seen: 10 Jul 2026
Tracked since: 23 Jun 2026

Showing the 0 most recent distinct flights. The total counts every raw ADS-B tracking leg, including repeat observations and sub-5-minute artifacts.

From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.

Registration history

(1)

N139WSUSACTIVE
NATIONAL TEST PILOT SCHOOL
2015 – present

Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal

N139WS — frequently asked

Is N139WS currently active?

Registry records list N139WS's status as Active, registered in United States — a Aero Vodochody.

What is the manufacturer serial number (MSN) of N139WS?

N139WS carries manufacturer serial number (MSN) 432931, the serial assigned to this Aero Vodochody airframe when it was built.

What is the ICAO24 / Mode S code for N139WS?

N139WS's ICAO24 (Mode S) transponder code is A09EA5 — the hex address the Mode S transponder on this Aero Vodochody broadcasts.