Before evebody jumps all over the S-92 about range, this occasionally used to happen when the dear old 61 was there (been there, done it), although I am not sure if the range differential was better or worse. I think now the issue has been brought into focus someone will pretty quickly come up with an appropriate approved procedure and the problem will go away.
Looking on the bright side, at least they have the capability to fit long range tanks, if we had had the spare payload it would have been a nice capability to have on the Sea King on several occasions I can think of.