NTSB Safety Recommendation A-11-48 through -51

[NTSB Press Releases <ntsbpressreleases@xxxxxxxx>]

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                   NTSB SAFETY RECOMMENDATION
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National Transportation Safety Board
Washington, DC 20594

June 10, 2011

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The National Transportation Safety Board makes the following 
recommendations to the Federal Aviation Administration:

Consult with appropriate specialists and revise the current 
internal Federal Aviation Administration guidance on 
issuance of medical certification subsequent to ischemic 
stroke or intracerebral hemorrhage to ensure that it is 
clear and that it includes specific requirements for a 
neuropsychological evaluation and the appropriate assessment 
of the risk of recurrence or other adverse consequences 
subsequent to such events. (A-11-48)

Correct the deficiencies with the in-service automated 
weather sensor system (AWSS) stations, specifically the 
known problems with present weather sensors and ceilometers, 
to ensure that the AWSS stations provide accurate 
information as soon as practical. (A-11-49)

Implement a collaborative test program in Alaska between the 
Federal Aviation Administration, the National Weather 
Service (NWS), the local academic community, and private 
entities to establish the viability of relaying weather 
information collected from airborne aircraft equipped with 
existing data-link technology, such as universal access 
transceivers, to the NWS Alaska Aviation Weather Unit in 
real-time. (A-11-50)

If the Federal Aviation Administration?s test program 
recommended in Safety Recommendation A-11-50 establishes 
that the use of existing data-link technology, such as 
universal access transceivers, is a viable means of relaying 
collected information in real-time from an airborne 
platform, encourage and provide incentives to data link-
equipped aircraft operators in Alaska to outfit their 
aircraft with weather-sensing equipment for real-time data 
relay. (A-11-51)

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http://www.ntsb.gov/Recs/Letters/2011/A-11-048-051.pdf

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The complete recommendation letter is available on the Web 
at the URL indicated above.

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Electronic versions of letters may or may not include 
enclosures; however, related publications, accident 
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on the NTSB website.

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