What was found
FLT#2536, STI-JFK. (AIRCRAFT PERFORMED AN AIR TURN BACK TO STI) .' SMOKE DETECTION FAULT. MULTIPLE FALSE FIRE WARNINGS, LAVATORY B. ( LAVATORY SMOKE DETECTION SYSTEM ); REMOVED AND REPLACED LAV FLEECES FILTER IAW AMM 26-17-00. MDDR CLEARED, MX-4 UPDATED. PLACARD REMOVED. OPS CHECK GOOD.'