Melroy and Wheelock in the A/L following EVA 4

ISS016-E-009234 (3 Nov. 2007) --- Astronaut Pam Melroy, STS-120 commander, assists astronaut Doug Wheelock, mission specialist, in the removal of his Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the International Space Station as the mission's fourth spacewalk draws to a close.