Rockets fired by Afghan militants hit the chairman of the U.S. joint chiefs of staff's airplane in Afghanistan Monday.
The chairman, U.S. Army Gen. Martin Dempsey, was not on the plane at the time of the attack.
A NATO spokesman said the attack happened Monday night at Bagram Air Field outside Kabul.
While Dempsey was unharmed, the attack did affect the general's mission to discuss the state of the war following the killings of U.S. military trainers by Afghan soldiers or militants posing as Afghan soldiers.
Dempsey's visit came just one day after another American was killed by authorities in Afghanistan.
According to NATO, there have been 32 such attacks so far this year. Ten U.S. soldiers have died at the hands of Afghan security forces in just the last two weeks.
The United States is calling on Afghan President Hamid Karzai to work with the U.S. to find a better way of vetting Afghan recruits.
It was revealed this past Friday that as a precaution, U.S. troops have been ordered to carry loaded weapons at all times in Afghanistan, even when they are on their bases.
Meanwhile, Dempsey departed Afghanistan Tuesday morning on a different plane because of the damage sustained by his C-17 in Monday's attack.