What was found
ON TAXI ECAM AVIONICS SMOKE WARNING. NO INDICATION OF SMOKE. FOUND AVIONICS SMOKE INDICATOR BULB CONTACTS WORN FLAT. REMOVED AND REPLACED THE BULBS AND PERFORMED SATISFACTORY ANNUCIATOR LIGHT TEST IAW AMM 33-14-00-05. STARTED TROUBLESHOOTING IAW AMM 26-15-00-05. WHEN PERFORMING PTT AVIONICS SMOKE WARNING LIGHT DID NOT ILLUMINATE. TAPPED ON WARNING LIGHT AND WAS ABLE TO GET LIGHT TO COME ON. TAPPED SEVERAL TIMES AND WAS ABLE TO GET LIGHT TO GO OUT AND COME ON. ALSO TESTED IN NORMAL CONFIGURATION AND WAS ABLE TO GET THE LIGHT TO COME ON AND GO OFF BY TAPPING ON THE SWITCH. REPLACED THE THE SWITCH. TEST OF AVIONICS COMPARTMENT SMOKE DETECTION NORMAL IAW MM 26-15-00-05.