ORS § 53.090
Within 30 days next following the allowance of the appeal, the appellant must cause to be filed with the clerk of the appellate court a transcript of the cause. The transcript must contain a copy of all the material entries in the justice docket relating to the cause or the appeal and any transcript or audio record made under ORS 51.105, and must have annexed thereto all the original papers relating to the cause or the appeal and filed with the justice. Upon the filing of the transcript with the clerk of the appellate court, the appeal is perfected. Thenceforth the action shall be deemed pending and for trial therein as if originally commenced in such court, and the court shall have jurisdiction of the cause and shall proceed to hear, determine and try it anew, disregarding any irregularity or imperfection in matters of form which may have occurred in the proceedings in the justice court. If the transcript and papers are not filed with the clerk of the appellate court within the time provided, the appellate court, or the judge thereof, may by order extend the time for filing the same upon such terms as the court or judge may deem just. However, such order shall be made within the time allowed to file the transcript.
ORS 53.090