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ASN Wikibase Occurrence # 145677
Last updated: 25 April 2019
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Date:03-APR-2012
Time:08:20
Type:Silhouette image of generic C172 model; specific model in this crash may look slightly different
Cessna 172
Owner/operator:Valley Vista Flyers Inc
Registration: N6749A
C/n / msn: 28849
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Johnson Valley, CA -   United States of America
Phase: Standing
Nature:Private
Departure airport:Johnson Valley, CA (6CA5)
Destination airport:Johnson Valley, CA (6CA5)
Investigating agency: NTSB
Narrative:
An acquaintance of the pilot had expressed an interest in learning to fly the pilotís newly purchased airplane, and the pilot agreed to provide a demonstration/introductory flight. The acquaintance had no prior flight experience. On the morning of the planned flight, the pilot discovered that the airplaneís battery was dead and decided to start the engine by turning the propeller (hand-prop). He instructed the passenger, seated in the left seat, how to operate the brakes and throttle. The engine was hand-propped and started successfully by the pilot, but the airplane began to move forward. The pilot was unable to board the airplane, and the passenger was unable to control or stop the airplane or shut down the engine. An eyewitness reported that the engine rpm increased and the airplane accelerated as it traversed the airport. The airplane crossed a runway and struck a ground-mounted solar panel array located about 200 feet away. The airplane sustained damage to the propeller, engine mount, firewall, windscreen, wings, and nose landing gear. Four solar panels were also damaged. The passenger stated that due to inexperience, he was unable to properly operate the brakes, but he could not recall whether he attempted to manipulate the throttle during the event.
Probable Cause: The pilot did not properly secure the airplane prior to rotating the propeller by hand, resulting in inadvertent movement of the airplane.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20120405X31518&key=1
FAA register: http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20120405X31518&key=1
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=6749A&x=28&y=7


Revision history:

Date/timeContributorUpdates
17-May-2012 15:50 Geno Added
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 20:37 ASN Update Bot Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

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