COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Fire Protection Equipment AD/FPE/13 First Technology Fire and Safety Toilet Compartment Fire Extinguishers 5/98 Applicability: All First Technology and Safety spherical type toilet compartment fire extinguishers Halon 1211 and 1301 with serial numbers 7967 to 10356 inclusive. Requirement: Remove applicable fire extinguishers from aircraft, check and replace if necessary in accordance with First Technology Fire and Safety Service Bulletin 26-110. Note: CAA(UK) AD 007-11-97 refers. Compliance: Before 23 July 1998. This airworthiness directive becomes effective on 23 April 1998. Background: At Serial Number 7967 a manufacturing change resulted in a leakage problem at the eutectic tip.