Mo. Rev. Stat. § 473.567: Failure to settle after citation, letters revoked.

If the executor or administrator fails to appear as required by the citation or, appearing, fails or refuses to file settlement, or to show cause why settlement should be continued, the court, in addition to the fine provided for in section 473.563, may revoke his letters and issue attachments or other process to compel final settlement, directed to any county in the state. In all such cases the delinquent shall pay costs.