What was found
EMERGENCY DECLARED - JUST PRIOR TO LEVEL OFF, 15 MINUTES INTO FLIGHT, AVIONICS SMOKE LIGHT ILLUMINATED WITH AVONICS SMOKE WARNING ON ECAM. AFTER CHECKLIST PUSHED AVONICS EXTRACT BUTTON, WARNING DISAPPEARED FOR ABOUT 1 MINUTE, THEN REAPPEARED. TESTING FOR SMOKE R & R SMOKE DETECTORS 11WA &13WA IAW MM 26-15-12 PB 0401. OPS CHECKS NORMAL IAW MM 26-15-00-PB 0501. NO DEFECTS NOTED.