What was found
ENG 4 SHORT CIRCUIT WILL NOT TEST WITH EITHER LOOP A OR B. REMOVED AND REPLACED NR 4 ENG DETECTION AMPLIFIER UNIT IAW DC-8 M/M 26-10-2, OPS CHECK SERVICEABLE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ENG 4 SHORT CIRCUIT WILL NOT TEST WITH EITHER LOOP A OR B. REMOVED AND REPLACED NR 4 ENG DETECTION AMPLIFIER UNIT IAW DC-8 M/M 26-10-2, OPS CHECK SERVICEABLE.