Although he managed to land at Chu Lai , the aircraft was a total loss due to a warped wing spar .
On the last mission , the third aircraft , commanded by Captain John Butterfield , was seriously damaged by ground fire .
Although John Butterfield managed to land at Chu Lai , the aircraft was a total loss due to a warped wing spar .
On the last mission , the third aircraft , commanded by Captain John Butterfield , was seriously damaged by ground fire .