California Code, Probate Code - PROB § 12202

(a) The court may, on petition of any interested person or on its own motion, for good cause shown on the record, cite the personal representative to appear before the court and show the condition of the estate and the reasons why the estate cannot be distributed and closed.

(b) On the hearing of the citation, the court may either order the administration of the estate to continue or order the personal representative to petition for final distribution, as provided in Section 12201.