WSK PZL MIELEC M-18A
Mountain Home, ID — November 8, 2008
Event Information
| Date | November 8, 2008 |
| Event Type | ACC |
| NTSB Number | WPR09CA041 |
| Event ID | 20081120X61731 |
| Location | Mountain Home, ID |
| Country | USA |
| Coordinates | 43.13139, -115.73055 |
| Airport | Mountain Home Municipal Airpor |
| Highest Injury | NONE |
Aircraft
| Make | WSK PZL MIELEC |
| Model | M-18A |
| Category | AIR |
| FAR Part | 137 |
| 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
The pilot's inadequate preflight inspection, and, his failure to properly secure the aircraft as he left the cockpit with the engine operating, which resulted in the unoccupied airplane inadvertently becoming airborne and colliding with a fence and terrain.
Full Narrative
The commercial pilot reported he was taxing the airplane to the active runway when he realized the airplane's tail wheel lock was engaged. With the engine still running, the pilot set the parking brake, installed the control lock and exited the airplane with the intention of manually unlocking the tail wheel. When the pilot exited the cockpit he inadvertently knocked/pushed the throttle forward, to a high power setting, and the airplane started to roll across the taxiway. The unoccupied airplane accelerated, momentarily became airborne, and collided with an airport perimeter fence and terrain. The airplane sustained substantial damage to the fuselage, empennage and both wings.
No pre accident mechanical malfunctions or failures were reported.
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.