N4139D — 1958 HELIO H-391B
Registry aircraft record
HELIO H-391B model hub
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About N4139D
What aircraft is N4139D?
N4139D is a 1958 HELIO H-391B registered with the FAA (United States).
Is N4139D currently registered?
Yes — the FAA (United States) lists N4139D as registered (registry data updated 2026-08-31).
How many seats and engines does HELIO H-391B have?
The HELIO H-391B has 4 seats and 1 engine.