Mepụta ụdị okwu a dị mgbagwoju anya E nyere iwu site na Bath Iron Works na 28 February 1977 dị ka akụkụ nke mmemme FY77,'Flatley'keel tọrọ ntọala na 13 November 1979.
N'ezie, ihe dị mgbagwoju anya nke ahịrịokwu ahụ bụ "E nyere iwu site na Bath Iron Works na 28 February 1977 dị ka akụkụ nke mmemme FY77, 'Flatley' tọrọ ntọala na 13 November 1979, malitere na 15 May 1980, ma rụọ ọrụ na 20 June 1981. "