Interlock Defeat

System(s) Affected:
Targets

Interlock to be Defeated:
STF Water Jacket H2O Level Sensor BYP-005

Implementation:	Number:
Date: 2024-12-05 Time: 15:08:00	2024-544
Implemented By: Chris Sooley
In Consultation With: David Bandiera

Status: Active

Estimated Duration:
3 weeks

Reason for Defeat:
STF H2O level sensor readback suddenly dropped to -2.6M

Number of Yellow Tags:
2

Location of Defeat Tag(s):
1) DCR Defeat board

2) SAB2 Rack 1-A

How Was Defeat Implemented?
Where is Defeat Located?:
STF BYP-005 pinned in SAB2 Rack 1-A

Describe Alternate Protection:
STF water jacket Low-Low sensor is still actve. Level being monitored in DCR.

Fault Reports:

Work Permits:

Disables:

Status: Active

Interlock Verification Method:

Number of Tags Removed:
0

Comments:

Chris Sooley: 2024-12-05 15:23:31.441347
Approved by Louis Moskven and Steve Sapriken, See E-log entry 2024-12-05 14:50:31