AD NUMBER: 2007-07-04
MANUFACTURER: McDonnell Douglas
SUBJECT: Airworthiness Directive 2007-07-04
SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for all McDonnell Douglas Model MD-11 and -11F
This AD requires revising the maintenance inspection program
that provides for inspection of principal structural elements
(PSEs) and replacement of safe-life parts, to incorporate a new
revision to the MD-11 Airworthiness Limitations Instructions.
The revision reduces inspection intervals for fatigue cracking
of certain PSEs, and expands the inspection area for a certain
other PSE. This AD results from a revised damage tolerance
We are issuing this AD to detect and correct fatigue cracking of
certain PSEs, which could adversely affect the structural integrity
of the airplane.