What was found
(CAN) THE AUDIO SYS INVESTIGATED DUE TO REPEATED PROBLEMS RPTED BY PILOTS EVEN FOLLOWING MAINT CARRIED OUT. COMPLETE WIRING CHECKED FROM DASHBOARD TO HEADSET/PHONES & JACK. SHIELDING OF WIRE STRIPPED TO CHECK ITS CONDITION. IT OBSERVED THAT BARE WIRE STRANDS WERE CORRODED. CORROSION IN FORM OF POWDER BETWEEN STRANDS.WIRE RELUCTANT TO ACCEPT SOLDER & HAD VERY POOR TENSILE STRENGTH. FAULTY WIRE:SLINGSBY RECOMMENDED PROC (U.E.R #T67-965) TO PREVENT FURTHER CORROSION IS APPLIED. W