Piston helicopter

N90424

1951 Hiller UH 12B Piston Helicopters

Registered 2 NTSB/FAA records
Built
1951
Serial
389
Class
Piston helicopter
Engines
Franklin 6V4 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Tulsa, OK
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Registration record

N90424 on the FAA register

Type
1951 Hiller UH 12B Piston Helicopters (FAA: Hiller UH-12B)
Serial
389
Engines
Franklin 6V4 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Tulsa, OK
Certificate issued
2009-12-02
Airworthiness date
1974-09-26
Registration expires
2029-01-31
Airworthiness class
Standard · normal
Mode S (hex)
AC80C3
Mode S (octal)
53100303
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-01-31
    Registration expires (renewal due).
  • 2009-12-02
    Certificate of registration issued as N90424.
  • 1975-09-03
    Accident at Beaver Falls,Pa, 38; damage: substantial.
  • 1975-04-01
    Accident at Beaver Falls,Pa, 38; damage: substantial.
  • 1974-09-26
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1951
    Manufactured (1951).
Overview

About N90424

N90424 is a 1951 Hiller UH 12B Piston Helicopters (FAA model UH-12B), serial number 389. It is registered to an individual in Tulsa, Oklahoma. The current certificate of registration was issued on December 2, 2009 and expires on January 31, 2029.

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 (normal), dated September 26, 1974.

N90424 has 2 accident/incident records on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

1975-09-03 Accident · Beaver Falls,Pa, 38 Damage: Substantial NTSB · 3 3533
Reported aircraft: Hiller Acft UH-12B
Probable cause: IT GND.
1975-04-01 Accident · Beaver Falls,Pa, 38 Damage: Substantial NTSB · 3 1214
Reported aircraft: Hiller Acft UH-12B
Probable cause: ED CARB ICE.HEAT APPLIED ENGINE QUIT,HARD LDG.

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.