What was found
LAV SMOKE ILLUMINATED AROUND CLIMBING THROUGH 10,000 RAN CHECK LIST NOTIFIED FA'S, NO SMOKE, NO ISSUES, DISAPERERED AFTER A FEW SECONDS. REMOVED FROM SERVICE. PERFORMED FUNCTION CHECK IAW E-175 AMM 26-14-01-720-8001-A . CHECK GOOD COULD NOT DUPLICATE. RETURNED TO SERVICE.