GenCorp Inc. is planning to sell part of its business for facilitating its planned purchase of Rocketdyne from United Technologies Corp. (UTX) due to a U.S. antitrust review. GenCorp said on January 8, 2012 that the Federal Trade Commission (FTC) has limited the scope of its investigation into the deal, focusing on the two companies' liquid divert and attitude control systems, or LDACS, businesses.

The company added that FTC has modified its request for information to exclude large and medium rocket engines for launch vehicles and spacecraft. As a result, GenCorp is now preparing to sell its LDACS unit for facilitating the FTC investigation. The company said that it "expects to continue working cooperatively with the FTC as it conducts its review of the proposed acquisition." GenCorp agreed in July 2012 to buy Rocketdyne for around $550 million.

The deal is still expected to close in the first half of 2013. The shares of GenCorp were unchanged at $9.76.