Michigan Compiled Laws, Chapter 259. Aviation § 259.205

Sec. 205.A garage keeper who in pursuance of any contract, expressed or implied, written or unwritten, furnishes any labor, material, or supplies has a lien upon any aircraft stored, maintained, supplied, or repaired by him or her for the proper charges due for the storage, maintenance, keeping, and repair of the aircraft and for gasoline or aviation fuel, electric current, or other accessories and supplies furnished or expenses bestowed or labor performed on the aircraft at the request or with the consent of the registered owner of the aircraft, whether the owner is a conditional sale vendee or a mortgagor remaining in possession or otherwise. The garage keeper may detain the aircraft at any time it is in his or her possession within 90 days after performing the last labor or furnishing the last supplies for which the lien is claimed. The lien, to the extent it is for labor and material furnished in making repairs upon an aircraft, has priority over all other liens upon the aircraft.