The LM ascent engine to be flown in LM-3 and subsequent missions would incorporate the Rocketdyne injector, Apollo Program Director Phillips informed ASPO Manager Low. The engine would be assembled and delivered by Rocketdyne under subcontract to Grumman.

MSC was authorized to inform those concerned of these decisions but would not issue contractual direction until an agreed course of contractual action had been approved by NASA Hq. Two days later, on September 27, Phillips advised Low that MSC was authorized to take all proper contract actions to implement the decision to contract with Grumman for ascent-stage engines assembled by Rocketdyne with the latter's injector.