What was found
AIRCRAFT IN BASE MAINTENANCE: L3 EMERGENCY EXT LIGHT ON SEAT ROW 24 SHOULD BE RED WHICH IS INSTALLED ON SEAT 28. FOUND RED AND WHITE EMERGENCY SEAT LIGHTS SWAPPED AT SEAT ROWS 24 AND 28 ABC. REMOVED RED LIGHT FROM SEAT ROW 28 AND WHITE LIGHT FROM SEAT ROW 24 PER A321 AMM 33-51-18-400-001-A. INSTALLED RED LIGHT ON SEAT ROW 24 AND WHITE LIGHT ON SEAT ROW 28 PER A321 AMM 31-51-18-000-001-A. PERFORMED OPERATIONAL CHECK PER A321 AMM 33-51--00-710.