Telescope Beam repair 2011
Sections:
Memos from Amman & Whitney:
Misc:
timeline:
- 15jan10 : pictures of platform show that beam is not yet
broken
- 03feb10: (wed) broken beam found
- Patching the beam
- 08feb10:(mon) threaded rods installed (this is a guess).
- 08mar10: moved azimuth to 296.4, dome to 8, ch to 12 in
preparation for repair.
- 19mar10: (fri) start installation of plate across break.
Finished
but weld not sufficient
- 23mar10:(tue) welding redone, welding inspector ok's welds.
- 24mar10: (wed) finished removing equipment, observing starts
za
6-10 deg.
- 10sep10: u2-u2l3 repair starts
- 13oct10: u2-u2l3 repairs end
- 17nov10: u3-l4 repairs start
- 05feb11: all repairs finish.
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