Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Raytheon Model DH 125-1A and -3A series airplanes. This proposal would require repetitive eddy current inspections to detect fatigue cracking of the main entry door/ frame pressing, and repair, if necessary. This proposal is prompted by reports of fatigue cracking of the main entry door/frame pressing due to cyclic loading of the door frame. The actions specified by the proposed AD are intended to detect and correct such fatigue cracking, which could lead to the loss of structural integrity of the main entry door, and, consequently, result in decompression of the cabin.