MEDAN: Indonesia's air force chief said Thursday the military transport plane that crashed into a residential neighborhood of Medan killing 141 people had a propeller "abnormality" that indicates an engine stalled.

Air Marshal Agus Supriatna told reporters the fact that the plane turned rightward after takeoff and was flying at a lower than normal speed also suggests an engine failure.

Before crashing shortly after takeoff on Tuesday, the C-130 Hercules hit a 35-meter (115-foot) radio antenna, he said. "By hitting the antenna, I imagine it certainly affected the plane," Supriatna said.

The search for bodies ended Wednesday. The plane was carrying 122 people and the impact also killed people on the ground.

Air force spokesman Dwi Badarmanto said it has grounded other B-type Hercules planes pending the investigation's outcome. He didn't say how many planes that involved.

The C-130 was carrying many more passengers than the military first reported. Initially, the air force said there were 12 crew members on the 51-year-old plane and did not mention passengers. It then repeatedly raised the number of people on board, indicating confusion about how many people had boarded and alighted during a journey covering several cities.