# N97TH: 1960 Hiller UH-12D, registration cancelled 2016-11-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 8, 2016
- Status when cancelled: Valid registration
- Airframe: [Hiller UH-12D](https://openairdocs.org/model/hiller-uh-12d) (registry code 4360118)
- Engine: [Allison 250 series](https://openairdocs.org/engine/allison-250-series) (registry code 03014)
- Data sheets: [TCDS 4H10](https://openairdocs.org/tcds/4H10) (OpenAirDocs)
- Serial number: 1165
- Year built: 1960
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: July 31, 1975
- Certificate issued: March 14, 2012
- Last registry action: March 4, 2015
- Mode S code: AD82FD
- Owners when cancelled: [Wyoming Helicopters Inc DBA](https://openairdocs.org/faa-owner/WYOMING%20HELICOPTERS%20INC%20DBA), [Acme Pest Control](https://openairdocs.org/faa-owner/ACME%20PEST%20CONTROL)
- Location: [Boulder, WY](https://openairdocs.org/faa-place/WY/Boulder)
- Physical address: [Pinedale, WY](https://openairdocs.org/faa-place/WY/Pinedale)
- Owner type: Corporation
- Owner's area on the map: 42.6294° N, 109.3521° W: Placed by OpenAirDocs at the center of ZIP code 82923, within about 18 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N97TH
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=97TH
- Page: https://openairdocs.org/deregistered/N97TH-2016-11-08

From the FAA registry file of October 28, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Hiller UH-12D: https://openairdocs.org/model/hiller-uh-12d.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN16LA330](https://openairdocs.org/ntsb/CEN16LA330), Aug 23, 2016: Hiller UH 12D (N97TH), Cokeville, WY, substantial damage. Probable cause: Failure of the control rotor cuff due to fatigue.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.