Originally Posted by
almostthere!
Can you displace another from an aircraft already declared to be in surplus?
Yes. RM 18.1.12.e.(iii). The EA makes no distinction as to where you can displace to or whether the category you’re displacing has been declared surplus.
You may be thinking of the return from LWOP provision (Scedule 1,Part C) which talks about not coming back to a category in surplus. So a pilot returning from LWOP is unable to go to (say) F/O 744 even if their seniority would permit it if it creates a surplus.