Airworthiness Directives; Boeing Model 777 Airplanes
SUMMARY: The FAA is superseding an existing
airworthiness directive (AD), which applies to all Boeing Model 777
airplanes. This AD results from a report of extensive corrosion of
a ballscrew in the drive mechanism of the horizontal stabilizer on
a Boeing Model 757 airplane, which is similar in design to the
ballscrew on Model 777 airplanes.