Airworthiness Directive · Amendment 39-10587 · Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes
Construcciones Aeronauticas, S.A. (CASA) Model CN-235 Series Airplanes
Model CN-235 series airplanes, as listed in CASA Service Bulletin SB-235-55-04, dated May 30, 1995; and Model CN-235 having serial number (S/N) C-011; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain CASA Model CN-235 series airplanes, that requires modification of the forward beam of the vertical stabilizer by the installation of a structural reinforcement plate. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent in-flight structural deformation or failure of the vertical stabilizer, resulting in reduced controllability of the airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
