DOTSON WILLIAM P SNGL SEAT HAWK ARROW
Carthage, NC — June 20, 2011
Event Information
| Date | June 20, 2011 |
| Event Type | ACC |
| NTSB Number | ERA11CA355 |
| Event ID | 20110623X12016 |
| Location | Carthage, NC |
| Country | USA |
| Coordinates | 35.33833, -79.43555 |
| Airport | Gilliam McConnell |
| Highest Injury | NONE |
Aircraft
| Make | DOTSON WILLIAM P |
| Model | SNGL SEAT HAWK ARROW |
| Category | AIR |
| FAR Part | 091 |
| Aircraft Damage | SUBS |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 0 |
| Serious | 0 |
| Minor | 0 |
| None | 1 |
| Total Injured | 0 |
Event Location
Probable Cause
A partial loss of engine power due to the pilot’s improper installation of the engine’s No. 1 cylinder spark plugs.
Full Narrative
According to the pilot during the turn from the base leg to the final approach the engine experienced a partial loss of power. The airplane impacted a tree causing substantial damage to the wing spars. A Federal Aviation Administration inspector examined the wreckage and noted that one spark plug was found backed out of the No. 1 cylinder and was suspended from the electrode wire. The pilot reported that he had changed the engine spark plugs the day before the accident and that he may have cross-threaded one of the spark plugs.
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.