24 Pa. Stat. § 2-276
If the respective school districts shall neglect or refuse to petition the court for the appointment of commissioners to secure an apportionment and adjustment within the period of the second year, as herein provided, either of said school districts, or any ten resident citizens owning taxable property within either of said school districts, may file a bill in equity at any time within six (6) years from the date of said change in boundary lines, in the name of the school district or for the use of the school district, against the other school district, in the court of common pleas of the proper county, to have such indebtedness apportioned and adjusted, and setting forth the facts upon which any claim of amounts due shall be made in accordance with the manner of adjustment set forth in the preceding sections of this act. Such case shall be proceeded with in accordance with the equity rules and a decree of dismissal or of payment shall be made after due hearing by the court, subject to further right of appeal, as allowed by law.
24 P.S. § 2-276