Manufacturing, Manufacturing Plant St. Marys, OH – Fire at automotive parts manufacturer AAP put out with help from sprinkler system October 23, 2015 viking210 The St. Marys Fire Department was called to AAP in St. Marys at about 11:20 this morning due to a ceiling fire in the plant. The department responded with two engines and a ladder track. The department also called in crews from the St. Marys Township Fire Department for assistance. In total, 16 firefighters responded. Chief Ayres says the fire was put out in about an hour thanks in part to a sprinkler system at AAP. So far, no cause has been determined. Chief Ayres says the department is investigating if this fire is related to a fire at AAP earlier this month that resulted in heavy black smoke and flames shooting from the roof.