What was found
AIRCRAFT RETURNED TO PLATFORM, DURING TAXING TAKE OFF ALARM WAS ON COULD NOT CANCEL IT. TECHNICAL PERSONNEL PERFORMED TAKE OFF CONFIGURATION TEST AND CHECK SLAT, FLAPS, AND SPOILERS, PARKING BRAKES, STABILIZER AND AURAL WARNING WERE CHECK BUT FAIL CONTINUED. DURING ELECTRICAL CHECK SWITCH S1-491 WAS DETECTED DAMAGED. IT WAS REPLACED IAW WDM 27-52-00 AND TESTED IAW MM 27-00-00, ALL CORRECT.