# N90494: 1966 Hiller UH-12L4, registration cancelled 2013-05-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 17, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Hiller UH-12L4](https://openairdocs.org/model/hiller-uh-12l4) (registry code 4360128)
- Engine: [Lycoming TI0-541 series](https://openairdocs.org/engine/lycoming-ti0-541-series) (registry code 41536)
- Data sheets: [TCDS H1WE](https://openairdocs.org/tcds/H1WE), [TCDS E10EA](https://openairdocs.org/tcds/E10EA) (OpenAirDocs)
- Serial number: 2540
- Year built: 1966
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Multiple
- Airworthiness date: July 5, 1973
- Certificate issued: September 7, 1974
- Last registry action: April 2, 1997
- Mode S code: AC81B8
- Owner when cancelled: [Mountain Air Helicopters Inc](https://openairdocs.org/faa-owner/MOUNTAIN%20AIR%20HELICOPTERS%20INC)
- Location: [Albany, OR](https://openairdocs.org/faa-place/OR/Albany)
- Owner type: Corporation
- Owner's area on the map: 44.6534° N, 123.1395° W: Placed by OpenAirDocs at the center of ZIP code 97321, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N90494
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90494
- Page: https://openairdocs.org/deregistered/N90494-2013-05-17

From the FAA registry file of November 3, 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-12L4: https://openairdocs.org/model/hiller-uh-12l4.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 SEA80DYE15](https://openairdocs.org/ntsb/SEA80DYE15), Feb 17, 1980: Hiller Acft UH-12E (N90494), Arlington, WA, substantial damage

## 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 19800217003809A](https://openairdocs.org/incident/19800217003809A), Feb 17, 1980: Hiller UH12E (N90494), Arlington, WA, Substantial damage. Practicing approachs to a hover, pilot mishandled controls. Helicopter struck ground, bounced and rolled over.

---
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.