What was found
BOOTS BY THE EQUIPMENT COOLING SOV WORN & LEAKING. INSTALLED NEW VLV IAW V 767-300 AMM 21-58-05 STEP11. REPLACED EQUIPMENT COOLING INDICATION CARD, NO HELP. REINSTALLED OLD CARD, REPLACED RELAYS K1206 & K1008, NO HELP. ACCOMPLISHED FIM TASK 21-58 -939 STEP 49 PG 109, FOUND HEAT EXCHANGER BYPASS SOV V10 NOT OPENING FULLY, NEEDS REPLACED. REPLACED VLV IAW AMM 21-58-13. OPERATIONS CHECKED GOOD. REPLACED BOOTS, NO LEAKS.