What was found
NR 1 ENGINE FIRE WARNING AT 3000 FT FIRE WARNING LIGHT AND BELL REPEATEDLY CYCLED ON AND OFF AFTER ENGINE SHUTDOWN. FIRE BOTTLE EXPENDED BOTH SIDES. FOUND WIRE NR W150-028-28 CHAFED AND SHORTING TO GROUND IN NR 1 ENGINE PYLON, REPAIRED WIRE PER CHAPTER 20 STANDARD OVERHAUL PRACTICES. SECURED AND PROTECTED WIRING INSIDE PYLON HOUSING. REPLACED NR 1 PYLON FIREWALL DETECTOR ELEMENT AND FIRE DETECTOR TEST SWITCH S467 IN COCKPIT. FIRE WARNING TESTS OK PER MM 26-11-0. (M)