CESSNA 152 near Cullman, AL — 2015-01-10
- Date
- 2015-01-10
- Location
- Cullman, AL, USA
- Airport
- CMD
- Aircraft
- CESSNA 152
- Registration
- N89921
- Category
- Airplane
- Highest injury
- Minor
- Fatalities
- 0
- Phase of flight
- Ground
Probable cause
The student pilot’s failure to maintain airplane control after engine start, which resulted in a ground collision with trees.
NTSB narrative
The airplane was parked on the ramp as the student pilot was preparing to conduct a local solo flight. The student reported that he primed the engine four times and opened the throttle 1/4 to 1/2 inch for starting. Once the engine was started, the airplane began to roll, and ramp surveillance video showed the airplane quickly accelerating after the engine was started before it exited from the camera's view. The student stated that the brakes were not effective and that the throttle control would not move. The airplane rolled about 344 ft from where it was parked, struck trees, and sustained substantial damage to the forward portion of the fuselage, left wing, and engine firewall. Postaccident examination of the airplane, which included a functional check of the brakes, did not reveal any preaccident malfunctions or failures that would have precluded normal operation. Given the evidence, it is likely that the student was not properly applying the brakes when he started the airplane, which allowed it to move forward after the engine started.
Analysis
- Primary failure mode
- Human factors
- First missed decision gate
- Instructors did not teach use of parking brake during engine start.
NTSB coding
Evidence available
- Photos
- 7 docket documents
Docket documents7
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