What was found
FIRE WARN LIGHT ON DASH ILLUMINATED ON TAKEOFF ROLL NO OTHER LTS ILLUMINATED CODE : 84 ON THE BITE TEST...AFTER DISCONNECTED WHEEL WHEEL FIRE DETECTOR, WARNING LIGHT EXTINGUISHED.SUSPECTED FIRE DETECTION LOOP ON KNEEL BEAM BAD.FURTHER TROUBLESHOOTING INDICATED LOOP M270 AT FAULT REF WDM26-12-11-5. REPLACED LOOP M270 IAW AMM26-18-02. CONFIRMED WHEEL WELL FIRE DET SYS ACTIVATED AND TESTS NORMAL. WHEEL WELL FIRE DET SYS OK FOR SVC, REMOVED DEFER STICKER. PER LP 8788539 : WHEEL WELL FIRE LT ILLUMINATED ON CLIMB OUT. LIGHT EXTINGUISHED AFTER APPROX 5 MIN.WHEEL WELL FIRE LT ILLUMINATED ON CLIMB OUT. LIGHT EXTINGUISHED AFTER APPROX 5 MIN.DEACTIVATED THE WHEEL WELL FIRE DETECTION SYSTEM AND VERIFY BRAKES ARE COOL TO THE TOUCH BEFORE ENGINE START IN REFERENCE WITH MEL 2604B.THIS ITEM CORRECTED PER LOG PG 8789135