# N508SQ: 1979 Hiller UH-12E, registration cancelled 2020-10-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 17, 2020
- Status when cancelled: Sale reported, canceled
- Airframe: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS 4H11](https://openairdocs.org/tcds/4H11), [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Serial number: 5086
- Year built: 1979
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Multiple
- Airworthiness date: January 31, 2001
- Last registry action: January 14, 2020
- Mode S code: A65947
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Individual
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N508SQ
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=508SQ
- Page: https://openairdocs.org/deregistered/N508SQ-2020-10-17

From the FAA registry file of October 31, 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-12E: https://openairdocs.org/model/hiller-uh-12e.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 DEN03LA092](https://openairdocs.org/ntsb/DEN03LA092), May 30, 2003: Hiller UH-12E (N508SQ), Cheyenne, WY, substantial damage. Probable cause: the pilot's failure to maintain aircraft control. A contributing to the accident was the sudden tailwind encountered.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20030530010949A](https://openairdocs.org/incident/20030530010949A), May 30, 2003: Hiller UH12E (N508SQ), Cheyenne, WY, Substantial damage. (-23) Pilot was spraying railroad right-of-way and then made a cyclic climb with a pedal turn. This pedal turn placed the helicopter in a down wind condition…

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