The Aviation Club participated in an "FOD" prevention walk Thursday, hoping to avert the "Foreign Object Damage" that can occur when a jet engine ingests items from the runway. The students walked the length of both runways at Williamsport Regional Airport in Montoursville, and removed anything that could damage an aircraft.The Aviation Club participated in an "FOD" prevention walk Thursday, hoping to avert the "Foreign Object Damage" that can occur when a jet engine ingests items from the runway. The students walked the length of both runways at Williamsport Regional Airport in Montoursville, and removed anything that could damage an aircraft.