وصف: Rider Ring
Pratt & Whitney (JT9D-7R4D, JT9D-7R4E, JT9D-7R4E4, When Hamilton Sundstrand P/N 773857-xx or 802157-xx is installed, PW4052, PW4056, PW4060A, PW4062, When Hamilton Sundstrand P/N 790270-xx or 802170-xx is installed) General Electric (CF6-80A, CF6-80A2, when Hamilton Sundstrand P/N 773857-xx or 802157-xx is installed, CF6-80C2B1, CF6-80C2B2, CF6-80C2B4, CF6-80C2B6, CF6-80C2B1F, CF6-80C2B2F, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6F, CF6-80C2B7F, when Hamilton Sundstrand P/N 790270-xx or 802170-xx is installed)