ASN Wikibase Occurrence # 269607
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| Date: | Monday 15 November 2021 |
| Time: | 11:30 LT |
| Type: |  Sonex Waiex B |
| Owner/operator: | Air-spaces LLC |
| Registration: | N535D |
| MSN: | WXB0010 |
| Year of manufacture: | 2018 |
| Total airframe hrs: | 145 hours |
| Engine model: | Aerovee Turbo |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Hangar Haciendas Airport (AZ90), Laveen, AZ -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Glendale Municipal Airport, AZ (KGEU) |
| Laveen Village, AZ | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported the engine began running rough during cruise flight, and the airplane could not maintain altitude. The pilot initiated a forced landing to an airstrip and during the descent realized that he was not going to make the airstrip, so he elected to landed on the desert terrain. The airplane impacted rocks and a barbed wire fence which caused the airplane to nose over, which resulted in substantial damage to the wings, stabilizers, and ruddervators.
Postaccident examination of the engine revealed that the No. 4 exhaust rocker assembly swivel housing separated from the screw body, likely due to wear of the swivel and the swivel pad housing. This wear likely occurred because of either incorrect spacing between the pad and valve, or corrosion.
Probable Cause: Failure of the rocker swivel assembly due to either wear or corrosion, which resulted in a loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB WPR22LA035
FAA register: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=N535D
https://flightaware.com/live/flight/N535D/history/20211115/1742Z/KGEU/AZ90
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Nov-2021 23:28 | Geno | Added |
| 16-Nov-2021 03:47 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Operator, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 19-Aug-2023 08:27 | ASN Update Bot | Updated [[Time, Aircraft type, Registration, Cn, Operator, Nature, Departure airport, Destination airport, Source, Damage, Narrative]] |
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