What was found
UPON FLAP RETRACTION FROM 5 DEG TO UP AFTER T/O WARNING AURAL, FLAPS, SOUNDED CONTINUOUSLY UNTIL FLAPS SELECTED TO PREVIOUS POS. WHEN GEAR WAS RAISED, HAD BRAKING ACTION SCALE APPEARED. RAN QRH ABNORMAL NON-ALERT, GND SENSING FAILURE, CHECKLIST. WHILE LT & RT GND SENSOR CB'S PULLED, AIRCRAFT APPEARED TO SENSE AIR MODE. PRIOR TO CB'S PULLED AUTOPILOT DID ENGAGE. FCP FUNCTIONS WORKED, PRESS CONTROLLER WORKED. SHORT TO GND ON WIRE SEGMENT B102-4980-20, WIRE SHORTED BEHIND EQUIP PANEL. REPAIRED WIRE B102-4980-20 IAW STD WIRING PRACTICES MANUAL. WHEN ATTEMPTING TO OPERATIONS CHECK GND SENSE RELAYS, LT GND SENSE CB POPPING. LT GND SENSING 12 RELAY R2-5897 INTERNALLY SHORTED, CAUSING CB B1-91 LT GND SENSING TO POP & KEEP IT FROM RESETTING. R & R R2-5897, LT & RT GND SENSING, NOW TESTED GOOD.