Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to First Technology Fire and Safety Ltd. toilet compartment fire extinguishers. This proposal would require inspection of suspect fire extinguishers for leakage, and removal from service and replacement with serviceable parts if found leaking. This proposal is prompted by reports of leakage at the fire extinguisher's eutectic tip due to a design change. The actions specified by the proposed AD are intended to prevent fire extinguisher failure due to leakage, which in the event of a toilet compartment fire could result in an uncontained fire and damage to the aircraft.