Riding aboard the station’s robotic arm, Steve Bowen retrieved a lightweight adapter plate assembly (LWAPA) that was used to attach experiments to the outside of the Columbus module. While Bowen places LWAPA in Discovery’s payload bay for return to Earth, Drew will remove insulation from the avionics assembly on the Express Logistics Carrier-4 and gather up three sets of stowage bags from the Crew Equipment Translation Aid (CETA) cart on the left side of the station’s truss, or backbone.
Earlier, after Drew vented ammonia from the failed pump module, Mission Control observed some ammonia ice floating around the vicinity. There is no concern. None of the ice contacted the spacewalkers’ suits.