Tim Hanke

Document ID: FAA-2010-0684-0003
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: July 15 2010, at 12:00 AM Eastern Daylight Time
Date Posted: July 16 2010, at 12:00 AM Eastern Standard Time
Comment Start Date: July 13 2010, at 12:00 AM Eastern Standard Time
Comment Due Date: August 27 2010, at 11:59 PM Eastern Standard Time
Tracking Number: 80b1acca
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This is comment on Rule

Airworthiness Directives: Aircraft Industries a.s. Model L13 Blanik Gliders

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I believe that the FAA should review this AD with serious consideration. In Europe, the aircraft undergo several tens of thousands winch launches to be towed in the air. In the USA, a substantial number of Blanik L-13’s are only towed via aerotow, producing very little stress on the aircraft. Furthermore, the aircraft in Europe tend to have a substantial number of hours on them that exceed over 5,000 hours and over 30,000 launches. In the USA, many Blanik L-13’s are still substantially under 3,000 hours TT. Furthermore, a great majority of the US Fleet do not fly aerobatics with these training gliders. Please consider these points when reviewing the future outcome of this AD.