# N40450: 1991 Robinson Helicopter R22 BETA, registration cancelled 2013-10-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 28, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta) (registry code 7640110)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE), [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 1649
- Year built: 1991
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: January 11, 1991
- Certificate issued: April 25, 1991
- Last registry action: September 15, 1997
- Mode S code: A4BE9D
- Owner when cancelled: [Mountain Top Helicopters](https://openairdocs.org/faa-owner/MOUNTAIN%20TOP%20HELICOPTERS)
- Location: [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula)
- Owner type: Corporation
- Owner's area on the map: 46.8547° N, 114.0104° W: Placed by OpenAirDocs at the center of ZIP code 59801, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N40450
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=40450
- Page: https://openairdocs.org/deregistered/N40450-2013-10-28

From the FAA registry file of October 29, 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 Robinson Helicopter R22 BETA: https://openairdocs.org/model/robinson-helicopter-r22-beta.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 SEA91LA146](https://openairdocs.org/ntsb/SEA91LA146), Jun 25, 1991: Robinson R-22 Beta (N40450), Wenatchee, WA, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN A PROPER ALTITUDE. CONTRIBUTING TO THE ACCIDENT WAS SUN GLARE.

## 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 19910624055159A](https://openairdocs.org/incident/19910624055159A), Jun 24, 1991: Robsin R22BETA (N40450), Wenatchee, WA, Substantial damage. Low level reconnaissance over a river dipped a skid in water and rolled over. Blamed setting sun and glassy water.

## Other aircraft with N40450

- [Cancelled 1984-06-11](https://openairdocs.org/deregistered/N40450-1984-06-11): Martin 404, S/N 14146. Exported to Bolivia. Owner: [Sekman Aviation Corp](https://openairdocs.org/faa-owner/SEKMAN%20AVIATION%20CORP), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)

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