Summary
On June 20, 2012, a Dosser Dale A BLADE 582 (N907AD) was involved in an incident near Two Rivers, AK. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: The total loss of engine power during cruise flight due to fouled spark plugs, which resulted from a stuck mixture control.
The pilot reported that while in level cruise flight the engine began to run rough and lose power, followed by a complete loss of engine power. He made a forced landing to a trail on a mountain ridge. During the forced landing, the nose wheel encountered rough terrain and collapsed rearward. The airplane sustained substantial damage to the fuselage. A postaccident examination by the pilot, revealed the mixture control stuck in the full rich position, which fouled the spark plugs.
This incident is documented in NTSB report ANC12CA059. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N907AD.
Accident Details
Probable Cause and Findings
The total loss of engine power during cruise flight due to fouled spark plugs, which resulted from a stuck mixture control.
Aircraft Information
Registered Owner (Historical)
Analysis
The pilot reported that while in level cruise flight the engine began to run rough and lose power, followed by a complete loss of engine power. He made a forced landing to a trail on a mountain ridge. During the forced landing, the nose wheel encountered rough terrain and collapsed rearward. The airplane sustained substantial damage to the fuselage. A postaccident examination by the pilot, revealed the mixture control stuck in the full rich position, which fouled the spark plugs.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ANC12CA059