NTSB Safety Recommendations A-08-22 through -24

[NTSB Press Releases <NTSBPressReleases@xxxxxxxx>]

Title: NTSB Safety Recommendations A-08-22 through -24

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                   NTSB SAFETY RECOMMENDATION
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National Transportation Safety Board
Washington, DC 20594

May 22, 2008

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Safety Recommendations A-08-22 through -24

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The National Transportation Safety Board recommends that the
Federal Aviation Administration:

Require operators of Boeing 757 airplanes to conduct a one-
time visual inspection of the upper wing fixed trailing edge
panel support beam clips for cracks, proper orientation, and
spacers, and to replace cracked clips and reinstall any
clips that are improperly oriented or that lack spacers, in
accordance with Boeing Service Bulletin 757-57-0027,
Revision 2, dated November 14, 1991. (A-08-22)

Require operators to report any cracked clips found during
the one-time inspection, as requested in Safety
Recommendation A-08-22, as well as the part number and
orientation of the clips relative to the wing rear spar
vertical stiffeners and whether spacers were present; then
analyze this information to determine if repetitive
inspections are required. (A-08-23)

Require Boeing to issue more explicit instructions and
figures that clearly illustrate the correct orientation of
the clips and spacers that attach the Boeing 757 panel
support beam to the wing rear spar vertical stiffeners. (A-
08-24)

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http://www.ntsb.gov/recs/letters/2008/A08_22_24.pdf

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

The letter is in the Portable Document Format (PDF) and can
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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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