About 300 Marine base workers walked shoulder to shoulder through a southern Arizona neighborhood Thursday in search of any stray ammunition from the crash of a bomb-laden Harrier jet.

The pilot ejected safely before the crash, and one civilian on the ground had a minor cut. Two homes had structural damage, Marine Cpl. Michael Nease said.

The plane's four 500-pound bombs were safely removed. They have devices to prevent detonation if they are accidentally dropped from the aircraft or hit the ground in a crash, Nease said. The plane was also carrying 300 rounds of 25-milimeter ammunition, none of which exploded.

The AV-8B Harrier, a light attack aircraft that can take off and land like a helicopter, was the fourth such jet from the Yuma air station to crash in 18 months. A Harrier crashed in Yuma on Dec. 2 and two crashed in December 2003. In each case, the pilot ejected safely.

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