What was found
MASTER FIRE WARNING ILLUMINATED NR 2 FIRE SHUTOFF LEVER LIGHT ON, DISCHARGED BOTH FIRE BOTTLES. THREE ENGINE APPROACH AND LANDING WAS COMPLETED. DURING TROUBLESHOOTING FOUND NR 2 ENGINE FIRE WARNING CONNECTION P1-136 DAMAGE. REMOVED AND REPAIR CONNECTION IAW MM 20-50-1. OPS CHECK IAW MM 26-10-0, FOUND NORMAL. CHECKED ON ENGINE RUN-UP, CHECKED SATISFACTORY. REMOVED AND REPLACED NR 1 POS AND NR 2 POS FIRE EXTINGUISHING AGENT, TESTING AND FUNCTIONAL CHECKED SATISFACTORY. ALL SYSTEMS TESTED, AND AIRCRAFT RETURNED TO NORMAL.