AD NUMBER: 2006-07-21
SUBJECT: Airworthiness Directive 2006-07-21 SUMMARY: The FAA is
adopting a new airworthiness directive (AD) for certain Boeing
Model 757 airplanes. This AD requires repetitive inspections for
corrosion and cracking of the midspar fittings in the nacelle
struts, and corrective actions if necessary. This AD also provides
an optional terminating action for the repetitive inspections.
This AD results from reports of corrosion and cracking on
midspar fittings on the nacelle struts of several Boeing Model 757
We are issuing this AD to detect and correct cracking in the
midspar fittings of the nacelle struts, consequent reduced
structural integrity of the struts, and possible separation of an
engine and strut from the airplane.