ISS009-E-10554 (4 June 2004) --- Astronaut Edward M. (Mike) Fincke, Expedition 9 NASA ISS science officer and flight engineer, holds the spare Remote Power Controller Module (RPCM) in the Quest airlock of the International Space Station (ISS). The spare is scheduled to replace the failed RPCM on the S0 (S-Zero) Truss.