Ohio Revised Code Title XIII. Commercial Transactions § 1311.72

(A) Except as provided in division (B) of this section, any person who performs labor upon or furnishes materials for an aircraft has a lien upon the aircraft to secure payment for the labor and materials. Except as provided in division (B) of this section, any person who owns or operates an airport or repair shop and whose employee performs labor upon or furnishes materials for an aircraft has a lien upon the aircraft to secure payment for the labor and materials.

(B) No person shall have a lien pursuant to division (A) of this section if the person has possession of the aircraft or if the cost of the labor performed or materials furnished for the aircraft is greater than or equal to one thousand dollars and the owner of the aircraft has not requested or consented to the performance of the labor or furnishing of the materials.

(C) A lien that arises under this section is valid against any person except a purchaser or encumbrancer who in good faith, without notice, and for value acquired rights prior to the recording of an affidavit for lien pursuant to section 1311.73 of the Revised Code.