J. Warner, H. Radkins, J. Kissel, M. Ross

FRS Ticket: 13417

The End-X BRS still experienced glitches after the trouble shooting last week (51342) so we decided to disassemble the BRS autocollimator to remove all living or dead insects. After removing the insulation, camera, and light source, we unscrewed the top two thirds of autocollimator optics assembly from the bottom third and thoroughly inspected it for any stowaways. We did not find any insects other than the two dead ones on the lens at the bottom of the tube (pictured in the first and second attachments). We removed these, wiped clean the lens, and reassembled the autocollimator.

In an attempt to block any future thrill seeking bugs, we taped over any gap we found that led into the optics tube (shown in the third and fourth attachments). Once this was done we reinstalled the insulation and closed up the thermal box.

We have not seen any glitches since this work was complete but we will continue monitoring to ensure that the problem is exterminated.