Can anyone please tell me why UA 1021 a non stop flight from EWR-PTY was diverted to MCO on August 12, 2013. UA informed me that there was airport congestion at EWR. Landing at MCO has nothing to do with airport congestion at EWR. I suspect the aircraft had mechanical issues. The UA flight status stated aircraft servicing. The flight circled many times over the ocean before landing at MCO. Any information will be greatly appreciated. I feel that UA is less than candid in this matter.