What was found
BDL - DURING CLIMB SHUT DOWN NR 1 ENGINE, S/N 1607, DUE TO FIRE WARNING ON BOTH LOOPS. DISCHARGED FIRE EXTINGUISHER BOTTLE. FOUND ANTI-ICE HEAT DUCT, MFG P/N 577957, RUPTURED. REPLACED ANTI-ICE FUEL HEAT DUCT AND FIRE EXTINGUISHER BOTTLE. ENGINE OPERATION THEN CHECKED NORMAL. (M)