OAKLAND — Boeing Billed for Osprey Cost Overruns: The Pentagon says Boeing Co. owes more than $156 million for cost overruns on the V-22 Osprey, a claim disputed by Boeing. The attack aircraft, which can take off and land like a helicopter, is three years late, 2,900 pounds overweight and nearly $450 million over budget. Under a fixed-price pact with the government, Boeing and lead contractor Bell Helicopter Textron Inc. must pay all expenses over $1.8 billion. The Allison Gas Turbine division of General Motors Corp., producer of the plane's engine, must also pay $134.4 million. The V-22 was set to go into production this month, but auditors said they don't expect full-scale production until at least late 1995.