Original sentence: The Aviation Section is equipped with four helicopters, providing law enforcement, search and rescue, and medevac service to the entire county.The Section is equipped with one (1) MD Helicopter MD-902 Explorer twin-engine medevac helicopters and one (1)  twin engine American Eurocopter EC145 and two (2) American Eurocopter AS-350B2 single-engine patrol helicopters
Edited sentence: The Aviation Section is equipped with four helicopters, providing law enforcement, search and rescue, and medevac service to the entire county: one twin-engine MD Explorer helicopter for medevac, and one twin-engine Eurocopter EC 145 and two single-engine Eurocopter AS-350B2 patrol helicopters