At the time of spacecraft shipment to Cape Kennedy on August 25, 164 engineering orders were identified as open work, although the data package appeared to identify only 126. These orders were covered by 32 master change records, which reportedly were the documentation approved by the MSC Change Control Board rather than by individual engineering orders. By September 24, engineering orders totaled 377 - 213 more than on August 25 - and the master change records had increased to 77. KSC estimated that some 150 of the 213 additional orders should have been identifiable within North American Aviation at the time of the Customer Acceptance Readiness Review. Bolender said that, if this were true, North American Aviation should be asked to provide better visibility for CSM changes that would be sent to the Cape for installation at the time of the review.