Summary
This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Kidde Aerospace P/N 898052 hand-held halon fire extinguishers that are utilized on aircraft. This proposed AD would require you to remove the affected fire extinguishers from service and would prevent you from using them in the future. This proposed AD is the result of information that shows that the discharge time of the affected fire extinguishers exceeds the maximum allowable discharge time. The problem is due to incomplete crimping of the siphon tube. The actions specified by this proposed AD are intended to remove from service fire extinguishers that had this incomplete crimping of the siphon tube. If not removed from service, these fire extinguishers could function at diminished levels and compromise the level of safety in an emergency situation.