1) DOCUMENT CHANGE NOTICE (DCN):
DCN No. E1100031-v1


2) INFORMATION:
DOCUMENT No.	TITLE
C1002597-v2:	SOW-TMS First Article Optics Table Aluminum Components
C1002792-v2:	SOW-TMS First Article Optics Table Stainless Steel Components
C1100843-v1:	TDM-Inspection of PN D1001129-v2
D1001129-v2:	aLIGO ETM OPTICAL TABLE
D1002768-v2:	aLIGO_TMS_Telescope_Roll_Mass_Adj_Rod
D1003162-v2:	aLIGO TMS TELESCOPE PITCH MASS ADJ. ROD


3) CHANGE DESCRIPTION (FROM / TO):
C1002597-v2:
 Most of the quantities listed in Table 1, sheet 4, were in error and are corrected this revision.

C1002792-v2:
 INCLUDED DRAWINGS D1002768 & D1003162:
 -FROM- rev v1
 -TO- rev v2

C1100843-v1:
 Initial release.

D1001129-v2:
 Sheet 2, right and lower views:
  Positional tolerances are changed  -FROM-  +/-.01  -TO-  +/-.02  for 12 5/16-18 tapped holes.

 Sheet 2, right view:
  Hole locating dim changed  -FROM-  4.06  -TO-  4.08.
  Hole locating dim changed  -FROM-  22.17  -TO-  22.15.

D1002768-v2 & D1003162-v2:
 MATERIAL CHANGE:
 -FROM- 18-8 Stainless Steel
 -TO- 316 Stainless Steel


4) REASON FOR CHANGE:
C1002597-v2:
 See 3)

C1002792-v2:
 To reflect the revisions D1002768-v2 & D1003162-v2 per this notice.

C1100843-v1:
 To reduce the inspection workload for P/N D1001129-v2.

D1001129-v2:
 To ease positional tolerance on 12 holes which have less critical alignment and may pose machining
 difficulties.

 To correct nominal hole positions for interfacing in the top TMS assembly.

D1002768-v2 & D1003162-v2:
 Material change for better vacuum compatibility.


5) SIGNATURES REQUESTED:
Ken Mailand
Calum Torrie
Dennis Coyne


6) DCN DISTRIBUTION:
Ken Mailand
Calum Torrie
Dennis Coyne


7) NOTES: 
The initial (previous) revisions of the above SOWs were forwarded out for RFQ but no orders have been
placed at time of this notice. The new revisions per this notice will be included to vendors at time
of orders.