What was found
(AUS) APU FIRE BOTTLE SQUIB WIRE BETWEEN PIN 2 AND EARTH POINT WIRE WAS THE INCORRECT TYPE FOR THE APPLICATION. THE WIRE FITTED WAS A SINGLE CORE SHIELDED WIRE WITH 150 DEGREE BLUE AMP TERMINALS. THE CORRECT WIRE IS 16 GAUGE SINGLE CORE 260 DEGREE WIRE. A SIMILAR LENGTH OF WIRE WAS FOUND INSTALLED IN THE EXTINGUISHER USED CIRCUIT FROM EARTH POINT L1 TO TERMINAL STRIP 311-03-00 B1. THIS WIRE SHOULD HAVE BEEN A 22 GAUGE 260 DEGREE SINGLE CORE WIRE. UNAPPROVED PART. PERSONNEL/MAINTENANCE ERROR.