What was found
AFTER DEPARTURE FROM LLB, FLT 8372 - PILOT REPORTED LT ENG FIRE DETECT SYS WAS ACTIVATED WITH NO VISIBLE SIGNS OF SMOKE OR FIRE. THE PILOT SECURED THE ENG AND FIRED BOTH EXTINGUISHERS. PILOT THEN DECLARED AN EMERG. UPON LANDING, SHUTDOWN THE RIGHT ENGINE, TURNED OFF ALL ELECT PWR AND EXITED THE A/C. THE CFR TEAM COULD NOT FIND ANY EVIDENCE OF FIRE. THE A/C WAS TOWED TO THE RAMP. MX INSPECT THE ENG FIRE DETECT SYS AND FOUND FIREWIRE SEGMENT ON THE AFT O/B SECTION DEFECTIVE, NO EVIDENCE OF FIRE OR OVERHEAT. MX REPLACED THE FIREWIRE, RAN THE ENG FOR APPROX 20 MIN AND THE FIRE DETECT SYS WORKED AS PER MM. THE A/C RETURNED TO SERV AND REPOSITION TO MAF FOR SCHEDULED ROUTE ON 4/28/97. (M)