???? Accord ??????? ???? ????? operation ???????? ??? ????? short. Defines ??? ????????? ?????????? ??? party ???? relates to maintenance ???????, and details ????? formal. Aids ??? ????????? ?? limiting ????????? ??? ??????? and clarifying ???????? ?? ??? ?????? ?? ensuring performance undertakings ?????? ????? ???? ????? ?????? ?????? ???

???? ??????? ???? ??????? ?????? ????? ????? ?????. ????? ??? ???????? ??????? ?????? ?? ?????? ???????. ??? ????? ?????? ??????? ?? ????? ????? ?? ??? ????? ???? ??????? ????? ????????. ?????? ??? ???????? ????? ?????? ????? ????? ??????? ???? ????? ????? ??????? ???? ????? ???? ?????????? ????????. ???? ??? ??????? ?? ?????? ?????? ? ???