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N4120D
HELIO H-391B
UNDERHILL, VT
Valid
Mfr Year: 1957
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Registrant
CLARK KYLE B
Registration Exp
Oct 31, 2029
Airworthiness Date
Jun 7, 1957
Cert Issue Date
Oct 19, 2022
Seats
4
Engines
1
Cruise Speed
117 kts
Max Weight
CLASS 1
Engine Type
Reciprocating
Aircraft Type
Fixed wing single engine
Fractional
No
Last Activity
Sep 9, 2023

🛠️ Airworthiness Directive Exposure & Fleet Context

This HELIO H-391B airframe/engine combination has 8 current type-applicable Airworthiness Directives (8 airframe, 0 engine) and 0 historical. AD applicability is type-based — compliance status for N4120D must be verified against the aircraft maintenance logbooks.

Search FAA DRS for applicable ADs →

N4120D is one of 20 HELIO H-391B aircraft on the U.S. registry · fleet median year 1957.

⚠️ NTSB Accident & Incident Records

1 possible NTSB record match for N4120D — see verification below.

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External Research Links

Airworthiness Directives (ADs)
Search FAA DRS for ADs — filter by Model: H-391B
Search FAA DRS →
Title & Lien History
Bills of sale, liens & security agreements — search N4120D (free FAA account)
Open FAA CARES →
NTSB Full Database
Deep search NTSB CAROL — enter N4120D in Registration Number
Open NTSB CAROL →
Aviation Weather
METAR, TAF, winds aloft & radar — official FAA weather service
Check Weather →
FAA Registry (Official)
Official FAA record for N4120D — authoritative government source
Open FAA Registry →

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Data sourced from FAA Aircraft Registry · Updated daily · Look up another N-Number