extra attacker allowed when on penalty kill?

[RefWEB]

Originally Posted by chseagle

Is it legal for a team to add an extra attacker when on a penalty kill?

Am curious as had this happen in a game recently, and was wondering if the on-ice officials blarged.

If they pull the goalie, they can put on an extra attacker. Can be done whenever the team wants.

Other than that, any other time a team puts on players they're not entitled to have, its too many players....but i think i need a bit more info on the situation.