Anonymous

Document ID: FAA-2010-0839-0006
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: August 26 2010, at 12:00 AM Eastern Daylight Time
Date Posted: August 27 2010, at 12:00 AM Eastern Standard Time
Comment Start Date: August 25 2010, at 12:00 AM Eastern Standard Time
Comment Due Date: October 12 2010, at 11:59 PM Eastern Standard Time
Tracking Number: 80b3bbdc
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This is comment on Rule

Airworthiness Directives: Aircraft Industries a.s. (Type Certificate G24EU Previously Held by LETECKE ZAVODY a.s. and LET Aeronautical Works) Model L-13 Blanik Gliders

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An internet search of the accident in questions suggests the ship which crashed was being used for acrobatics at the time of the crash. In the USA this ship is used for training and rides with minimal acrobatics beyond spin recognition/recovery for students. No other simliar recent accidents are mentioned, which questions if this is a pattern of failure but rather pilot error resulting in an overstress of the aircraft. A temporary limitation on acrobatics while investigation/cure is completed would appear to be a more rational advisory. These aircraft are in daily operation across the USA. If there was a problem it would (regretfully) be more obvious.