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Registered aircraft · FAA record as of September 25, 2026
N21PP

Underland G / Grothe L V-6

N21PP is an Underland G / Grothe L V-6, a fixed-wing airplane with one motor with a piston engine. It has 4 seats. It is registered to Clinton Pueppke, a partnership in Ayr, North Dakota. The registration is valid: it was issued on April 27, 2020 and expires on April 30, 2027. It holds an experimental airworthiness certificate for amateur built, dated May 14, 1996.

Aircraft

Maker
Underland G / Grothe L
Model
V-6
Serial number
11
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Lycoming 0-340 SERIES · 170 hp
Seats
4
Year built
Not given
Transponder code
A1B87C (octal 50334174)

Registration

Status
Valid registration
Certificate issued
April 27, 2020
Expires
April 30, 2027
Last FAA action
January 22, 2023
Airworthiness
Experimental · Amateur built · May 14, 1996
FAA region
Great Lakes
FAA record id
00393772

Owner as the FAA publishes it

Name
Clinton Pueppke
Type
Partnership
Address
2526 147Th Ave SE
Ayr, ND 58007-9715
Co-owners
Pterson Ken / Peterson Zach

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.

Earlier use of this number 1

2012-08-09Raven S55A · Sale reported, canceled

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