What was found
VOLTAGE REGULATOR FAILED ON TAKE OFF, CAUSED BOTH COMM RADIOS TO FAIL WITH SMOKE OBSERVED FROM COLLINS 251 COMM RADIO. REPLACED REGULATOR, SERVICED GILL BATTERY & OVERFLOW BOTTLE, ADJUSTED REG TO 27.5 VDC, BORROWED RADIOS TO USE WHILE COMM ARE REPAIR, NO OTHER DAMAGE FOUND.