What was found
AIRCRAFT WAS GROUNDED: ECAM WHEEL N/W STEERING FAULT DISPLAYED ON TAKEOFF AFTER LANDING GEAR RETRACTION. EMERGENCY DECLARED INTO MIA, AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE ACCOMPLISHED WIRING CHECKS OF 3GC,4GC ,6GC IAW WITH TSM 32-51-00-810-812-A NO FAULTS FOUND, REMOVED AND REPLACED BSCU #1 IAW AMM 32-42-34,