What was found
(CAN) ON FERRY FLIGHT TSC 2257 FROM CUN-YMX , DURING TAKE OFF , SLAT SYSTEM LOCKED IN EXTEND POSITION , BUT FLAPS RAISED FULL UP. FLAP RED LIGHT WAS ILLUMINATED ON THE FLAP POSITION INDICATOR (PILOTS CENTER INSTRUMENTS PANEL) AND SLAT MONITOR INDICATED SLATS AT 30 DEGREES.-AIRCRAFT RETURNED TO "CUN".-ON GROUND , POP OUT INDICATOR FOUND OK ON BOTH WING FOR BRAKE INDICATOR. -C/B RESETTED , SYSTEM TEST C/OUT IN ACCORDANCE WITH M.M. 27-81-00. NO FAULTS FOUND.-NO DEFECTS WERE REPORTED AFTER TAKE OFF.