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N4977E
HILLER UH-12A
THORNTON, NH
Valid
Mfr Year: 1951
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Registrant
WYLLIE ASHTON R J TRUSTEE
Registration Exp
Sep 30, 2028
Airworthiness Date
Aug 1, 1983
Cert Issue Date
Sep 15, 2018
Seats
4
Engines
1
Cruise Speed
63 kts
Max Weight
CLASS 1
Engine Type
Reciprocating
Aircraft Type
Rotorcraft
Fractional
No
Last Activity
Jun 10, 2023

🛠️ Airworthiness Directive Exposure & Fleet Context

This HILLER UH-12A airframe/engine combination has 24 current type-applicable Airworthiness Directives (26 airframe, 0 engine) and 2 historical. AD applicability is type-based — compliance status for N4977E must be verified against the aircraft maintenance logbooks.

Search FAA DRS for applicable ADs →

N4977E is one of 22 HILLER UH-12A aircraft on the U.S. registry · fleet median year 1950.

⚠️ NTSB Accident & Incident Records

3 possible NTSB record matches for N4977E — see verification below.

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External Research Links

Airworthiness Directives (ADs)
Search FAA DRS for ADs — filter by Model: UH-12A
Search FAA DRS →
Title & Lien History
Bills of sale, liens & security agreements — search N4977E (free FAA account)
Open FAA CARES →
NTSB Full Database
Deep search NTSB CAROL — enter N4977E 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 N4977E — authoritative government source
Open FAA Registry →

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