The citation must be served and proceedings had thereunder as in the case of a contest before probate. If the jury finds or the court decides that the will is invalid or is not the last will of the testator, the court shall enter an order revoking the probate of the will and letters testamentary. Thereupon the powers of the personal representative cease, but the personal representative is not liable for any act done in good faith before the revocation.
NRS 137.100