This is something that happens sometimes in trasatlantic flights in the company I work for: suitable alternates are choosen for the EEP-EXP (for ex LPLA-CYYT), and adequate above minima are choosen as ETOPS alternates (ex LPLA-CYHZ, or LPPS-CYYT), and the ETP falls after the EXP or before the EEP.
Some Cpts won't accept a FPL like this, and we have to ignore a valid and suitable station, and manually choose a further EEP or EXP station, elongating the ETOPS period just for the ETP to be between the two points.. does this make sense?
I searched documents and training manuals about this and couldn't find anything saying that the ETP must be in the ETOPS period, but could't find anything stating the contrary also...
Can you elucidate me about this, preferably indicating the sources?
Thank you so much