Originally Posted by
HEATHROW DIRECTOR
I don't even know what an ALTMOC is. The place has gone bananas.
EASA regs are on three levels.
1) The rule itself.
2) AMC which is Acceptable Means of Compliance
3) GM which is Guidance Material.
Basically, in this case, off the top of my head, the rule (i.e. European Law) will say something like 'Runway operations will be provided with the appropriate separation'.
The AMC is EASA's view on how you comply with that rule, in this case it's a cut and paste job from ICAO 4444 about runway ups, so the first departure has to be in the turn or have crossed the end of the runway, before you can clear the next departure for take off or next arrival for landing.
If UK CAA wants to continue to do something else, it needs to provide to EASA am Alternative means of Compliance (ALTMOC) to demonstrate that it is providing the same, or better, level of safety than if it complied with the AMC.