Piston helicopter

N4785C

1952 Hiller UH 12B Piston Helicopters

Registered 2 NTSB/FAA records
Built
1952
Serial
312
Class
Piston helicopter
Engines
Franklin 6V 350 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Phoenix, AZ
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Registration record

N4785C on the FAA register

Type
1952 Hiller UH 12B Piston Helicopters (FAA: Hiller UH-12B)
Serial
312
Engines
Franklin 6V 350 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Phoenix, AZ
Certificate issued
1990-08-14
Airworthiness date
1969-04-14
Registration expires
2028-01-31
Airworthiness class
Multiple
Mode S (hex)
A5E1DC
Mode S (octal)
51360734
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-01-31
    Registration expires (renewal due).
  • 1990-08-14
    Certificate of registration issued as N4785C.
  • 1974-12-31
    Accident at Kettlmn Cty,Calif, 05; damage: destroyed.
  • 1969-09-11
    Accident at Watsonville,Calif, 05; damage: substantial.
  • 1969-04-14
    Airworthiness date on the current FAA record (multiple category).
  • 1952
    Manufactured (1952).
Overview

About N4785C

N4785C is a 1952 Hiller UH 12B Piston Helicopters (FAA model UH-12B), serial number 312. It is registered to an individual in Phoenix, Arizona. The current certificate of registration was issued on August 14, 1990 and expires on January 31, 2028.

The FAA aircraft reference file describes the type as a piston helicopter, one Franklin 6V 350 series engine and 4 seats. Its airworthiness certificate is multiple category, dated April 14, 1969.

N4785C has 2 accident/incident records on file (most serious damage: destroyed); details are below.

Safety record

Accident & incident history

1974-12-31 Accident · Kettlmn Cty,Calif, 05 Damage: Destroyed NTSB · 3 4135
Reported aircraft: Hiller Acft UH-12C
1969-09-11 Accident · Watsonville,Calif, 05 Damage: Substantial NTSB · 3 3125
Reported aircraft: Hiller Acft UH-12B

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 Arizona· 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.