N4121D — 1957 Helio H-391B Data

N4121D
1957 Helio H-391B, c/n 041
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N4121D is a 1957 Helio H-391B (serial number 041). It is configured with 1 engine and 4 seats. Registration status is listed as In Question, with ownership recorded under REGISTRATION PENDING in Weirsdale, FL, United States. The profile includes 27 photos documenting this aircraft.

Latest photos of N4121D
Aircraft N4121D, Helio H-391B, at FD04, photo by MarkPasqualino
MarkPasqualino
@ FD04
Aircraft N4121D, EAA OSH 2018, at KOSH, photo by Florida Metal
Florida Metal
@ KOSH
Aircraft N4121D, SNF LAL 2017, at KLAL, photo by Florida Metal
Florida Metal
@ KLAL
Aircraft N4121D, SNF LAL 2016, at KLAL, photo by Florida Metal
Florida Metal
@ KLAL
Airframe Info
Manufacturer Helio
Model H-391B Search all Helio H-391B
Year built 1957
Construction Number (C/N) 041
Aircraft Type Fixed wing single engine
Number of Seats 4
Number of Engines 1
Engine Type Reciprocating
Engine Manufacturer and Model Lycoming GO-435C&D SER
Aircraft
Registration Number N4121D
Mode S (ICAO24) Code a4de0d
Certification Class Standard
Air Worthiness Test 1957-01-04
Last Action Taken 2026-08-08
Current Status In Question
Owner
Registration Type Individual
Address Weirsdale, FL 321953158
United States
Region Southern