Originally Posted by
Scinfaxi
Most airports have rules about how long before STD you can push. For example, our first flight departs for LGW. Whilst it is within our capability to get the plane ready for push as early as possible, it is not supposed to push more than 5 minutes early as LGW is a Level 3 Coordinated Airfield. Same with many international airports within Europe.
Even carries might not allow you to go early. We got instructions that SV is not allowed to push earlier than - 10 to reduce congestions. BI won't leave early either due to risk of slot violation. KE may not depart early unless their OCC authorised it.