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Aircraft record

N9779C1958 Hiller UH-12C

DeregisteredUnclaimedSource: FAA, updated Oct 18, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Oct 28, 2019.

Safety record in brief:1 NTSB accident (substantial damage, May 1999)2 ADs may apply

Registration
Deregistered
Last based in
Union Hall, VA
owner city / state
Engine
6V4 SERIES · 210 hp
Franklin
Owners
1
on record
NTSB events
1
substantial, 1999
ADs may apply
2
confirm with A&P
Service reports
0
since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026
Last registered owner
Individual owner
City, state
Union Hall, VA
Canceled
Oct 28, 2019
Airworthiness
Standard · Normal, Utility
Airworthiness date
May 9, 1985

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Hiller
Model
UH-12C
Year
1958
Serial number
1038
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
4
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
6H2
Mode S code
ADA13C

Engine

Make and model
Franklin 6v4 Series
Type
Reciprocating
Power
210 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. until 1988Individual ownerdifferent airframe: Hiller Uh-12e S/N 2265
  2. until 2019Individual ownerUnion Hall, VA

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

May 16, 1999 · Grafton, OH

Inadequate maintenance which resulted in the failure of the mercury clutch assembly.

Damage
Substantial
Injuries
None
Report
NYC99LA113

From NTSB records; matched by serial number.Read NTSB report (search CAROL for NYC99LA113)

Accident history for this model

ADs published since 1998 that may apply (2)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
97-20-15Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E HelicoptersNov 12, 1997Airframe (UH-12C)
97-10-16Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E…Jun 27, 1997Airframe (UH-12C)Only with: Having control rotor blade spar tube P/N 36003, 36006, 36129, 36129-25, 36203, 36203-15, 36203-21, or 36209-3, or cuff P/N 36101-1, 36101-4, 36108, 36115-1, 36115-4, 36115-6, 36115-8, or 36124 installed; includes UH-12D and UH-12E converted to turbine power per STC SH177WE and SH178WE.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (0)

No Service Difficulty Reports found for this airframe since 1995.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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