N4785C1952 Hiller UH-12B
Safety record in brief:No NTSB accidents or incidents since 19822 ADs may apply1 service difficulty report
Registration
FAA Aircraft Registry · Oct 17, 2026- Registered owner
- Individual owner
- City, state
- Phoenix, AZ
- Certificate issued
- Aug 14, 1990
- Expires
- Jan 31, 2028
- Airworthiness
- Multiple · Standard, Restricted, Agriculture and Pest Control
- Airworthiness date
- Apr 14, 1969
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 dataAirframe
- Manufacturer
- Hiller
- Model
- UH-12B
- Year
- 1952
- Serial number
- 312
- 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
- A5E1DC
Engine
- Make and model
- Franklin 6v 350 Series
- Type
- Reciprocating
- Power
- 235 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 1990 – nowIndividual ownerPhoenix, AZ · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs 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.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 97-20-15 | Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E Helicopters | Nov 12, 1997 | Airframe (UH-12B) |
| 97-10-16 | Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E… | Jun 27, 1997 | Airframe (UH-12B)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 (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Ignition · capacitor · failedFeb 27, 1996
WHEN RT MAG SELECTED DURING ENGINE RUN-UP CHECK, ENGINE FAILED. OBSERVED EXCESSIVE SPARKING AND POINT WEAR (7 HRS SINCE NEW). ENGINE RAN NORMALLY AFTER REPLACEMENT OF CAPACITOR AND POINT ADJUSTMENT. SUSPECT MANUFACTURING DEFECT OF PMA CAPACITOR.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026