AD 96-17-03 Amendment 39-9711

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Jetstream Model 4101 airplanes. This action requires an inspection to determine the serial number of the leg assemblies of the main landing gear (MLG), and replacement of defective pins with serviceable pins. This amendment is prompted by a report indicating that pins installed on certain leg assemblies of the MLG's were heat treated incorrectly during manufacture. The actions specified in this AD are intended to prevent failure of the pins due to incorrect heat treatment, and subsequent structural failure of the MLG.