What was found
**EMERGENCY DECLARED** ON BASE VECTOR AT BWI LEVEL 2 SLAT DISAGREE, ACCOMPLISHED LVL 2 CHECK LIST REF AOM, LANDED NORMAL NO UNUSUAL FLIGHT CONTORL POSITIONS. FOUND #4 SLAT POSITION SENSOR LOOSE. TIGHTENED SENSOR MOUNT SCREWS PER AMM 27-84-03. C/W TEST OF SLAT POSITION INDICATION PER AMM 27-84-00-700-801. OPS CHECK GOOD. A/C OK FOR SERVICE.