What was found
WHEEL WELL FIRE LIGHT IN FLT. LIGHT CLEARED AFTER GEAR EXT. DEFER. C/W MEL CARD 26020. LOOP AT M270 CAPPED AND STOWED. DEFERRED. FAULT CODE 84 REQUIRED. 26-18 TASK 802 STEP J.13 M270 DETECTION ELEMENT DISCONNECTED AND STOWED. MEL REMAINS MEL STICKER APPLIED. ACTIVE. WHEEL WELL FIRE DETECTION SYSTEM INOPERATIVE. PERFORMED FIM TASK 26-18 TASK 802. BITE TEST 26-18 TASK 801 RECONNECTED WHEEL WELL FIRE LOOP ELEMENT M270 REF AMM AVIONICS UNAVAILABLE. UNABLE TO ACCOMPLISH TROUBLESHOOTING FAULT CODE 84. CHECKED WHEEL WELL CEILING LOOPS, NO NOTABLE 26-18-02-400-801. PER FIM TASK 26-18 TASK 802 SENSOR TEST FOR WIRING CHECKS. REACCOMPLISHED DDG REQUIREMENTS PER MEL 2604B DAMAGE NOTED. CLEARED OVERHEAT DETECTOR CONTROL MODULE, FAULT DID NOT RETURN. CONTINUE WITH FIM 26-18 TASK 802 STEP F1(2)(B).