ESP-2 External stowage platform

esp-2 in launch configuration yoke



esp-2 updated fram orus

esp-2 detached keel yoke assembly (which remained in orbiter) , installed assistance of space shuttle discovery s robotic arm , 2 spacewalkers during sts-114 mission. larger esp-1 8 fram sites creating room 8 spare parts (orus). esp-1, powered unity module. however, unlike esp-1, esp-2 attached quest joint airlock using specialized esp attachment device (espad). esp-2 , esp-3 deployable versions of integrated cargo carrier , have same dimensions, approximately 8.5 feet (2.6 m) long , 14 feet (4.3 m) wide. orus on esp-2 are:

fram-1 (top side) failed pump module pm-004 relocated here iss-41 eva-27 crew in oct. 2014
fram-2 (top side) direct current switching unit (dcsu) (added sts-123 crew) fram formerly held vssa
fram-3 (top side) ctc-3 container moved here via spdm. dcsu added sts-123 crew) had been relocated via spdm jan. 30, 2013 elc-2.
fram-4 (top side) main bus switching unit (mbsu) launched on esp-2
fram-5 (keel side) pitch/roll joint (p/r-j) added sts-123 crew fram formerly held cmg
fram-6 (keel side) main bus switching unit (mbsu) added sts-120 crew unit swapped failed unit mbsu #1 truss, exp 32 crew in late 2012.
fram-7 (keel side) flex hose rotary coupler (fhrc sn1003) launched on esp-2
fram-8 (keel side) utility transfer assembly (uta) launched on esp-2

notes:

video stanchion support assembly (vssa) launched on esp-2 @ fram-2 jettisoned overboard on july 23, 2007 (the video stanchions placed on truss during evas).
pump module (pm) (sn0004), installed on fram-1 during sts-121, removed on august 17, 2010 exp 24 crew , installed on s1 truss, replacing original (failed) pm sn0002. failed unit had been temporarily stored on oru site on mbs, moved esp-2 sts-133 crew, returned earth sts-135 crew july 13, 2011.
a failed control moment gyroscope installed on fram-5 august 13, 2007 during sts-118 until february 13, 2008 when returned sts-122.