The Leonardo PMM was a Multi-Purpose Logistics Module (MPLM) before 2011, but was modified into its current configuration.

The crew spent time outfitting the Japanese Logistics Module, transferring supplies and equipment into it from space shuttle Endeavour.

Throughout the day, the station and shuttle crew members continued outfitting the Japanese Logistics Module - Pressurized Section.

The crews continued outfitting the Japanese Logistics Module - Pressurized Section, transferring supplies and equipment into it from Endeavour, as well as configuring racks inside the module.

Since there would be no next mission, STS-335 would also carry a Multi-Purpose Logistics Module filled with supplies to replenish the station.

The mission delivered the Japanese Logistics Module and the Canadian Special Purpose Dexterous Manipulator to the International Space Station.

Raffaello is the second of three Italian Space Agency-developed Multi-Purpose Logistics Module that were launched to the station.

The primary payload was a Multi-Purpose Logistics Module loaded with supplies and equipment for the International Space Station.

Also during the flight, Parazynski operated Endeavour's robotic arm to attach, and later detach, the Italian-built "Raffaello" Multi-Purpose Logistics Module.

April 5-April 20 - STS-131: Space Shuttle Discovery delivers a Multi-Purpose Logistics Module to the International Space Station.