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Registered aircraft · FAA record as of September 25, 2026
N51DU

Uhlenberg Donald M GREAT LAKES 2T1A

N51DU is an Uhlenberg Donald M GREAT LAKES 2T1A, a fixed-wing airplane with one motor with a piston engine, built in 1988. It has 2 seats. It is registered to an individual in Grand Forks, North Dakota. The registration is valid: it was issued on September 5, 2008 and expires on June 30, 2028. It holds an experimental airworthiness certificate for amateur built, dated September 1, 1988.

Aircraft

Maker
Uhlenberg Donald M
Model
GREAT LAKES 2T1A
Serial number
7125-H519
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Lycoming O&VO-360 SER · 180 hp
Seats
2
Year built
1988
Transponder code
A65F74 (octal 51457564)

Registration

Status
Valid registration
Certificate issued
September 5, 2008
Expires
June 30, 2028
Last FAA action
May 19, 2023
Airworthiness
Experimental · Amateur built · September 1, 1988
FAA region
Great Lakes
FAA record id
00933365

Owner as the FAA publishes it

Name
Okeefe William G
Type
Individual
Address
3721 Simonview Ct
Grand Forks, ND 58201-7611

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