NTSB Identification: WPR11LA306
14 CFR Part 91: General Aviation
Accident occurred Tuesday, July 05, 2011 in Yacoit, WA
Probable Cause Approval Date: 05/21/2014
Aircraft: GRUMMAN AMERICAN AVN. CORP. AA-5, registration: N1334R
Injuries: 2 Serious.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot reported that the airplane was climbing to cruise altitude up a valley in mountainous terrain when he felt a “small bump” and that the airplane subsequently began descending. While maintaining a low altitude to avoid overlying controlled airspace, he initiated a left turn to avoid rising terrain ahead, but a wing collided with a tree. The airplane came to rest in a gravel pit. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot’s failure to maintain clearance from terrain.

Full narrative available

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