Well cant give you any reference but if I issue speed control and then clear you for the approach, I expect you to comply with that speed until I tell you otherwise. If you need to reduce, tell me!
My analogy would be compared to if I give you descend to 3000 feet and then clear you for the approach, my instruction is still valid to descend to 3000 feet, you cant just stop at 4000 feet until the glidepath because I have now cleared you for the approach.
Last edited by ASD; 27th Jun 2012 at 13:17.