What was found
NR 2 FMGC FAILED PRIOR TO DEPARTURE.(FLT 256 EWR-PUJ)DEFERRED PER MEL 22-83-01.{REVISION TO THE REPORT SUBMITTED 4/28/03}. AFTER FLT 105, PUJ-PHL, ON 4/15/03, AT PHL; REMOVED & REPLACED NR 2FLIGHT MANAGEMENT GUIDANCE COMPUTER (FMGC)I/A/W AMM 22-83-34-401, OPPS CK'D OK. COMPLIED WITH RVSM RETURN SERVICE REQUIREMENTS. AIRCRAFT RETURNED TO SERVICE.