International Space Station (ISS) Expedition Crew 6 astronauts, commander Ken Bowersox and science officer Don Pettit, will make a 6.5h spacewalk on 7 or 8 April to install a back-up power supply on one of four gyroscopes which has experienced several intermittent power interruptions.

The spacewalkers, working from a station on the mobile transporter "railcar", will in addition make preparations for the planned STS 115 Endeavour ISS assembly flight.

Source: Flight International