What was found
CLE - FLT 3439 - THE CREW REPORTED THAT ON TAKEOFF THE 'AFX DISABLE' LIGHT ILLUMINATED AND WOULD NOT EXTINGUISH. THE CREW ABORTED TAKEOFF AND THE AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT ENGINE A/F HIGH PRESSURE SWITCH IAW B1900D MM 61-21-00 AND REMOVED AND REPLACED PC BOARD A123 IAW B1900D MM 31-51-05. OPS CHECK OF THE SYSTEM WAS GOOD IAW B1900D MM 61-21-00. THE AIRCRAFT WAS RELEASED TO SERVICE. (M)