ASN Wikibase Occurrence # 143719
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 4 February 2012 |
| Time: | 13:00 |
| Type: |  Alon A-2 Aircoupe |
| Owner/operator: | Private |
| Registration: | N5687F |
| MSN: | A-187 |
| Engine model: | Continental C90 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Forks Airport - S18, WA -
 United States of America
|
| Phase: | Standing |
| Nature: | Private |
| Departure airport: | Forks, WA (S18) |
| Friday Harbor, WA (KFHR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot planned on starting his airplane by turning the propeller by hand, because the airplane’s battery was dead. After loading his passenger, he set the throttle and the parking brake, but he elected not to tie down the airplane or place chocks in front of its wheels. When he pulled the propeller through, the engine started immediately as he intended. However, he had placed the throttle in a position that resulted in a higher rpm than he expected. Due to the high rpm, the parking brake was unable to hold the airplane in position, and it started rolling forward with only the passenger inside. The pilot attempted to reenter the airplane, but he was unable to do so. Although the passenger was able to steer the airplane along the taxiway, she did not know how to stop it, and it eventually went through a fence and over an embankment. During the accident sequence, the fuselage and the wings were substantially damaged. According to the pilot, there were no malfunctions or anomalies with the parking brake system or the throttle mechanism.
Probable Cause: The pilot's incorrect placement of the throttle prior to starting the airplane by hand. Contributing to the accident was that the pilot did not ensure that the airplane was restrained in a manner that would keep it from moving forward.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Feb-2012 20:30 | Geno | Added |
| 02-Mar-2012 20:10 | Geno | Updated [Source, Narrative] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 20:20 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation