In 2003, the US Forest Service acquired twenty-five ex-military Bell AH-1 Cobras. These two were made flyable and outfitted with infrared and low light sensors to form the Firewatch Cobra program. The other helicopters remained in storage, providing parts on demand. N109Z is former US Army AH-1F 69-16422. N107Z in behind was formerly AH-1S 83-24194. The last Firewatch Cobra flight was on October 16, 2021, being replaced by newer technology equipment.