Narrative:

Departing cmi; received lavatory smoke indication on EICAS shortly after takeoff. Completed checklist; and EICAS message extinguished. Approximately 3 mins later; lavatory smoke EICAS message reappeared and cycled on and off continuously. Decision to return to cmi made; and diversion successfully completed without incident.

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Original NASA ASRS Text

Title: EMB145 FLT CREW HAS EICAS MESSAGE 'LAVATORY SMOKE;' DIVERTS AND LANDS.

Narrative: DEPARTING CMI; RECEIVED LAVATORY SMOKE INDICATION ON EICAS SHORTLY AFTER TKOF. COMPLETED CHKLIST; AND EICAS MESSAGE EXTINGUISHED. APPROX 3 MINS LATER; LAVATORY SMOKE EICAS MESSAGE REAPPEARED AND CYCLED ON AND OFF CONTINUOUSLY. DECISION TO RETURN TO CMI MADE; AND DIVERSION SUCCESSFULLY COMPLETED WITHOUT INCIDENT.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.