NTSB -- NTSB Safety Recommendations A-11-35 and -36

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NTSB SAFETY RECOMMENDATION

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National Transportation Safety Board

Washington, DC 20594

May 3, 2011

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NTSB Safety Recommendations A-11-35 and -36

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The National Transportation Safety Board makes the following

safety recommendations to the Federal Aviation

Administration:

Require Eurocopter to revise its aircraft maintenance manual

for all helicopters equipped with part number 355A11-0020

and/or 355A11-0030 main rotor blades to include, as part of

the daily flight-related check, specific visual inspections

of the trailing edge of the blades, upper and lower skin

surfaces for cracks and surface deterioration/disfiguration.

(A-11-35)

Once the Eurocopter aircraft maintenance manual is revised

as described in Safety Recommendation A-11-35, require

operators of all Eurocopter helicopters equipped with part

number 355A11-0020 and/or 355A11-0030 main rotor blades to

revise their maintenance manuals to include specific daily

visual inspections of the trailing edge of the blades, upper

and lower skin surfaces for cracks and surface

deterioration/disfiguration. (A-11-36)

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http://www.ntsb.gov/Recs/Letters/2011/A-11-035-036.pdf

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The complete recommendation letter is available on the Web

at the URL indicated above.

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An archive of recommendation letters is available at

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Electronic versions of letters may or may not include

enclosures; however, related publications, accident

briefs, and aviation accident synopses may be found

on the NTSB website.

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