This was the last flight of Endeavour before entering its Orbiter Major Modification period until STS-118 in 2007, which included modernizing the cockpit, and also the final shuttle mission before the Columbia disaster.Mission Specialists John Herrington and Michael López-Alegría performed three spacewalks to activate and outfit the P1.Also carried aboard STS-113 was the Micro-Electromechanical System (MEMS) based Pico Satellite Inspector (MEPSI).Because Endeavour entered its Orbiter Major Modification period after the Columbia disaster, this was the last shuttle mission to fly with an analog-style cockpit.This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.