Piston helicopter

N9739C

1956 Hiller UH-12C

Registered 1 NTSB/FAA record
Built
1956
Serial
847
Class
Piston helicopter
Engines
Franklin 6V4 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Seaford, DE
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Registration record

N9739C on the FAA register

Type
1956 Hiller UH-12C
Serial
847
Engines
Franklin 6V4 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Seaford, DE
Certificate issued
2012-04-03
Airworthiness date
1962-11-21
Registration expires
2028-04-30
Airworthiness class
Standard
Mode S (hex)
AD9260
Mode S (octal)
53311140
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-04-30
    Registration expires (renewal due).
  • 2012-04-03
    Certificate of registration issued as N9739C.
  • 1998-10-24
    Accident at Clinton, IA; damage: substantial.
  • 1962-11-21
    Airworthiness date on the current FAA record (standard category).
  • 1956
    Manufactured (1956).
Overview

About N9739C

N9739C is a 1956 Hiller UH-12C, serial number 847. It is registered to an individual in Seaford, Delaware. The current certificate of registration was issued on April 3, 2012 and expires on April 30, 2028.

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, dated November 21, 1962.

N9739C has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

1998-10-24 Accident · Clinton, IA Damage: Substantial NTSB · CHI99LA012
Reported aircraft: Hiller UH-12C
Probable cause: the failure of the 90 degree gearbox for reasons undetermined. Factors were the failure of the gearbox, and it not being possible for the pilot to maintain control of the aircraft.

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 Delaware· 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.