What was found
ON T/O CPR PASSING 3000 AGL NR 4 UPPER DECK SMOKE DETECTOR LIGHT ILLUMINATED, MASTER FIRE LIGHT ON GLARESHIELD ILLUMINATED. FIRE WARNING BELL SOUNDED, DOWN LOADED CARGO. CHECKED CARGO FOR DEFECTS, FOUND NO DEFECTS. PRECAUTIONARY CHANGED NR 4 SMOKE DETECTOR P/N 77 40-1, S/N 211 INSTALLED IN NR 4 POSTION IAW 727 MM 26-16-011-4.