Yes, but not on manned flights. (Researching this is made more complex because there were quite a few different AGC designs; AGC3, AGC4, AGC4B, AGC5 and AGC6, in addition to Block I and Block II.) Sources differ a bit: "Journey to the Moon" (Eldon Hall) says (pg. 107) that Apollo 6 was "the last flight with Block I guidance system equipment" - but it's not clear if that refers to the AFC. "Digital Apollo" (David Mindell) says (pg. 175) that Apollo 5 was "the first Block II computer flight". So somewhere around there. (Apollo 7 was the first manned flight, and the first Block II spacecraft, per Mindell, pg. 176 - note that Block II spacecraft apparently != Block II AGC - very confusing!) Both excellent books, BTW - highly recommend them both. Noel