ESP-2 Update – Failed MBSU for internal repairs

This post covers a recent update done on the External Stowage Platform-2 (ESP-2). For my visitors who have built the entire ISS model, this is an optional modification. It involves removing a small part from the ISS model and replacing it with an updated one. At the bottom of this post you can download the respective part to be added to your ISS model.

The ESP-2 is an external platform attached to the US Quest Airlock. Read more about the ESP-2 here to see all its modifications.

On Aug 8, 2017 the Canadarm2 and DEXTRE maneuvered to unstow a failed Main Bus Switching Unit (MBSU) from ESP2 site 4.

Then the Failed MBSU and its respective FRAM was stowed onto DEXTRE’s EOTP Side 2.

On Aug 9th, the degraded MBSU was then successfully installed on the Japanese Orbital Replacement Unit Transfer Interface (JOTI) slide table. The slide table retracted into the Japanese airlock bringing the failed MBSU inside for internal repairs.

Photo is for demonstration only showing the failed MBSU and the Japanese airlock. My ISS model lacks the slide table of the Japanese airlock.

On Aug 10th, DEXTRE transferred back the empty MBSU Flight Releasable Attachment Mechanism (FRAM) from its EOTP side 2 to the ESP-2 site 4.

Changes to the ESP-2 model
The photos below show a closeup of the area involved. The download file contains all the parts including a patch to cover the area of the ESP-2 in case is damaged upon removing the glued MBSU.
The MBSU now has the FRAM and the MBSU separately. Both parts snap in place.

Download File:
MBSUfailed

Source: Spaceflight101.com

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