What was found
DIVERSION - LEVEL 3 ENG FIRE MSG BY BELL NO MW FIRE HANDLE OR FUEL SWITCH LIGHT INTEMITTENTLY DISPLAYED FIRE WARNING LASTED 1-2 SECONDS WHEN WARNINGS STOPPED FIRE DET 3 FAIL DISPLAYED RESULTING IN A DIVERT. REPLACED NR 3 FDCU IAW 26-11-02. OPS CHECK GOOD PER 26-11-02-700-801. REPLACED LT UPPER FIRE DET ELEMENT IAW 26-11-03. OPS CHECK GOOD PER 26-11-02-700-801. PERFORMED POWER ASSURANCE RUN IAW 71-00-00-700-804. NO FAULTS FOUND OK FOR SERVICE.