A Senate committee has refused to approve a promotion to admiral for a Navy officer who, as a young fighter pilot during a training mission, deliberately shot down an Air Force plane whose flier has suffered a life of pain from his forced ejection. The Senate Armed Services Committee took no confirmation vote on the nomination of Capt. Tiimothy W. Dorsey as the 112th Congress ended. Because the Senate did not act, the nomination goes back to the White House. The Navy has the option of trying to resubmit his nomination during the 113t Congress, which convened Thursday.