Chinese Hamper Plane Examination: WASHINGTON — The Chinese navy refused to supply power to the contractors who are trying to assess the air-worthiness of the Navy’s downed EP-3 surveillance aircraft, bringing the team’s work to a halt on Thursday. Chinese officials allowed technicians from Lockheed Martin to make a visual inspection of the aircraft’s exterior on Wednesday — the first time Beijing has permitted access to the plane since the mid-air collision with a Chinese fighter jet April 1 that forced it to make an emergency landing on China’s southern island of Hainan. But when the team returned to the aircraft on Thursday, expecting to put in a full day inspecting the plane’s interior and flight systems, they found they could not proceed without a power generator that was promised by the Chinese, said Rear Adm. Craig Quigley.