What was found
AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER WAS DECLARED, LANDING UNEVENTFUL & ACFT WAS NOT OVERWEIGHT. DURING CRUISE, SMOKE A CREW REST MAIN CABIN RECIRCULATION FAN EICAS MSGS DISPLAYED. CREW REPORTED SMELLING SMOKE FOLLOWED BY THE MAIN REST AREA, NO AIR FLOW LIGHT ILLUMINATING. R & R EACH RECIRCULATION FANS & 5 EACH SMOKE DETECTORS. SEE ALSO AALA20160114004, AALA20160119007, AALA20160119008, AALA20160119009, AALA20160119010 & AALA20160119011.