Piston helicopter

N94735

1953 Hiller UH 12B Piston Helicopters

Registered 2 NTSB/FAA records
Built
1953
Serial
523
Class
Piston helicopter
Engines
Franklin 6A4200 series
Status
Current as of October 2026
Registered owner
Dhc Aviation LLC (LLC)
Based
Newburgh, NY
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Registration record

N94735 on the FAA register

Type
1953 Hiller UH 12B Piston Helicopters (FAA: Hiller UH-12B)
Serial
523
Engines
Franklin 6A4200 series
Registered owner
Dhc Aviation LLC
Newburgh, NY
Certificate issued
2020-08-31
Airworthiness date
1977-04-08
Registration expires
2027-08-31
Airworthiness class
Standard · normal
Mode S (hex)
AD2A08
Mode S (octal)
53225010
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-08-31
    Registration expires (renewal due).
  • 2020-08-31
    Certificate of registration issued as N94735 to the current registrant.
  • 2012-09-19
    Accident at Rio Vista, TX; damage: substantial.
  • 1977-09-26
    Accident at Carrollton,Mi, 22; damage: destroyed.
  • 1977-04-08
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1953
    Manufactured (1953).
  • 1951-08-14
    N94735 previously assigned to a Erco 415-CD (s/n 4846); cancelled.
Overview

About N94735

N94735 is a 1953 Hiller UH 12B Piston Helicopters (FAA model UH-12B), serial number 523. The FAA register lists Dhc Aviation LLC as the registrant in Newburgh, New York. The current certificate of registration was issued on August 31, 2020 and expires on August 31, 2027.

The FAA aircraft reference file describes the type as a piston helicopter, one Franklin 6A4200 series engine and 4 seats. Its airworthiness certificate is standard category (normal), dated April 8, 1977.

N94735 has 2 accident/incident records on file (most serious damage: destroyed); details are below.

Safety record

Accident & incident history

2012-09-19 Accident · Rio Vista, TX Damage: Substantial NTSB · CEN12LA650
Reported aircraft: Hiller UH-12B
Probable cause: The catastrophic failure and disintegration of the No. 6 engine piston, which resulted in a total loss of engine power.
1977-09-26 Accident · Carrollton,Mi, 22 Damage: Destroyed NTSB · 3 2246
Reported aircraft: Hiller 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 New York· 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.