R 041607Z FEB 13 ALCGPSC 017/13 SUBJ: CANCELLATION MESSAGE A. My 011558Z FEB 13 B. My 041605Z FEB 13 1. Cancel Ref A. 2. Replace with Ref B. 3. POC CWO Thompson-Yancey, (703)872-6515. 4. Internet release is authorized.