Piston helicopter

N6331D

Hiller UH 12 Piston Helicopters

Registered 1 NTSB/FAA record
Built
—
Serial
213
Class
Piston helicopter
Engines
Franklin 6V4 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Olustee, OK
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Registration record

N6331D on the FAA register

Type
Hiller UH 12 Piston Helicopters (FAA: Hiller UH-12A)
Serial
213
Engines
Franklin 6V4 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Olustee, OK
Certificate issued
2023-08-30
Airworthiness date
—
Registration expires
2030-08-31
Airworthiness class
Standard
Mode S (hex)
A84B60
Mode S (octal)
52045540
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-08-31
    Registration expires (renewal due).
  • 2023-08-30
    Certificate of registration issued as N6331D.
  • 2013-06-29
    Accident at Florence, AL; damage: substantial.
Overview

About N6331D

N6331D is a Hiller UH 12 Piston Helicopters (FAA model UH-12A), serial number 213. It is registered to an individual in Olustee, Oklahoma. The current certificate of registration was issued on August 30, 2023 and expires on August 31, 2030.

The FAA aircraft reference file describes the type as a piston helicopter, one Franklin 6V4 series engine and 4 seats. Its airworthiness certificate is standard category.

N6331D has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2013-06-29 Accident · Florence, AL Damage: Substantial Serious injury NTSB · ERA13LA308
Reported aircraft: Hiller UH-12A
Probable cause: The student pilot s failure to maintain control of the helicopter while landing, which resulted in a tail rotor ground strike and collision with terrain.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Aircraft registered in Oklahoma· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.