What was found
FLIGHT 2900 - EWR - FLIGHT CREW REPORTED THAT AFTER LANDING AND ENGINE NR 2 SHUT DOWN, ELECTRIC SYSTEM SHUT DOWN, NO NOSE STEERING, ACFT HAD TO BE TOWED TO THE GATE. EWR MX RESET ELECTRICAL POWER AND PERFORMED ALL OPERATIONAL TESTS SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.