Interlock Defeat /
Device Disable
Management System
v1.5
(Driver)
Accelerator Complex:
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Implementation
Removal
Interlock Defeat
System(s) Affected:
Targets
Interlock to be Defeated:
STF byp-008 ion exchanger return flow
Implementation:
Number:
Date:
2023-12-02
Time:
21:45:00
2023-636
Implemented By:
Frank Hosta
In Consultation With:
Status:
Removed
Estimated Duration:
5 weeks
Reason for Defeat:
BYP-006 STF target cooling water flow signal noisy, dropping below trip warn sometimes. Approved by Steve Sapriken and Yetvart Hosepyan.
Number of Yellow Tags:
2
Location of Defeat Tag(s):
1) STF bypass cabinet on SAB2
2) MCR defeat board
How Was Defeat Implemented?
Where is Defeat Located?:
BYP-006 pinned in SAB2 STF bypass cabinet.
Describe Alternate Protection:
Water pump indication still functions along with the target water level switches.
Fault Reports:
16552
Work Permits:
Disables:
Interlock Defeat
Removal:
Number:
Date:
2024-04-19
Time:
16:30:00
2023-636
Removed by:
Ryan Lovelidge
Status:
Removed
Interlock Verification Method:
Fuse replaced under C2024-03-20-7. Device is working properly again. Defeat retired at the request of Louis M.
Number of Tags Removed:
2
Comments:
Brandon Humphries
David Bandiera
Elena Bylinskaia
Jason Wait
Robert Scheepmaker
Eric Chapman
Ryan Lovelidge
Riley Schick-Martin
Dale Nagra
Travis Kurucz
Chris Sooley
Kevin Lucow
Jas Uppal
Kathleen Genge
Gauhar Hayat
Frank Hosta
Ryan Anderson
