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
N173AU

David W Koenig THK65

Valid Wisconsin

N173AU is a David W Koenig THK65, a balloon with no engine, built in 2019. It has 1 seat. It is registered to an individual in Menasha, Wisconsin. The registration is valid: it was issued on May 21, 2019 and expires on May 31, 2029. It holds an experimental airworthiness certificate for amateur built, dated July 19, 2019.

Aircraft

Maker
David W Koenig
Model
THK65
Serial number
001
Type
Balloon
Power
None · None NONE
Seats
1
Year built
2019
Transponder code
A12465 (octal 50222145)

Registration

Status
Valid registration
Certificate issued
May 21, 2019
Expires
May 31, 2029
Last FAA action
August 4, 2023
Airworthiness
Experimental · Amateur built · July 19, 2019
FAA region
Great Lakes
FAA record id
01294862

Owner as the FAA publishes it

Name
Koenig David W
Type
Individual
Address
1486 Plank Rd
Menasha, WI 54952-2947

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