What was found
NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED AFTER T/O, FIRE EMERGENCY HANDLE PULLED AT 2200Z, RETURNED TO BRW. REMOVED AND REPLACED NORMAL AFT FIRE BOTTLE AND SQUIBB, INSPECTED NR 1 ENGINE NO EVIDENCE OF FIRE. THREE ENGINE FERRY AUTHORIZED IAW LYNDEN AIR CARGO GMM FORM 029. REPLACED NR 1 NACELLE FWD FIRE LOOP DUE SHORTED ENG FIRE WARNING, OPS NOMRAL PER 26-10 MM.