As a member of the A/B brigade a little explanation for ATC on why pilots call approaching (yes I know we shouldn’t) When a Flight management computer is approaching its assigned level there is a mode change from the climb Mode to Alt Capture, a speed is captured and the autothrottle starts reducing engine power. Inevitably once we call level, ATC give us further climb, the power goes on and we climb away again. By giving ATC a prompt it enables us to maintain climb power keep the climb going and so, I’ve heard reduces engine wear. The reduction in engine power on an aircraft climbing at 3,000fpm is considerable.
Possibly the answer is for ATC to insert the phrase "Climb and Maintain" when further climb in not expected or alternatively for ATC to give further climb as early as possible rather that wait untilwe call level.
PS I love you all; really I do