The Indonesian Air Force will send one of its Hercules C-130 transport planes to Oklahoma City in the US for a maintenance programme.

The air force will send two more Hercules planes for programmed depot maintenance in the US if the initial upgrade is successful, according to JakartaGlobe.

During the $6.5m programme, the plane will be inspected and examined for cracks and X-rayed for microscopic feather-like defects that could make the plane dangerous to fly.

The C-130 will fly 16,000 flight hours from Jakarta to Oklahoma City, and spend six months in a hangar run by Arinc during the upgrade programme.

The air force will also send 17 flight and maintenance crew members to accompany the plane to the US, where ten will remain for the entire project.