PIPER PA-18-150
Cape Yakataga, AK — August 30, 2011
Event Information
| Date | August 30, 2011 |
| Event Type | ACC |
| NTSB Number | ANC11CA089 |
| Event ID | 20110830X45215 |
| Location | Cape Yakataga, AK |
| Country | USA |
| Coordinates | 60.07500, -143.10472 |
| Airport | Tsiu Lodge Strip |
| Highest Injury | NONE |
Aircraft
| Make | PIPER |
| Model | PA-18-150 |
| Category | AIR |
| FAR Part | 091 |
| Aircraft Damage | SUBS |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 0 |
| Serious | 0 |
| Minor | 0 |
| None | 2 |
| Total Injured | 0 |
Event Location
Probable Cause
The pilot inadvertently switching off the engine magnetos during the initial climb, resulting in a loss of engine power. Contributing to the accident was the manufacturer's placement of the magneto switches.
Full Narrative
The pilot reported that during the initial climb, he inadvertently switched off the engine magneto switches on the left side of the cabin with his coat sleeve while using the trim handle, and the airplane's engine shutdown. He realized the problem, but due to the airplane's low altitude, he decided to land instead of trying to restart the engine and climb over obstacles at the end of the airstrip. The airplane touched down in an area of tree stumps and brush, sustaining substantial damage to the wings and fuselage.
Examination of the magneto switches on the accident airplane, and other like models, revealed that a pilot's coat sleeve can come in contact with the guarded magneto switches. The pilot stated that the accident could have been prevented by moving the magneto switches to the instrument panel.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.