Interlock Defeat

System(s) Affected:
Targets

Interlock to be Defeated:
STF BYP-003 Pinned: Water Jacket High-Low Level

Implementation:	Number:
Date: 2024-06-28 Time: 12:06:00	2024-344
Implemented By: Ryan Anderson
In Consultation With:

Status: Removed

Estimated Duration:
1 days

Reason for Defeat:
Low-High Level sensor in the STF Water Column is showing Not OK and tripping the beam. OK'd by Louis after discussion.

Number of Yellow Tags:
2

Location of Defeat Tag(s):
Back of Rack 1-A on SAB2

DCR Defeat Board.

How Was Defeat Implemented?
Where is Defeat Located?:
Pin placed in STF Defeat Board signal BYP-001 at the rear of Rack 1-A on SAB2.

Describe Alternate Protection:
Other STF Water Jacket level sensors are active, in particular the High-High level sensor is active. Water Jacket level being actively monitored in DCR

Fault Reports:

Work Permits:

Disables:

Interlock Defeat

Removal:	Number:
Date: 2024-07-16 Time: 14:30:00	2024-344
Removed by: David Bandiera

Status: Removed

Interlock Verification Method:
STF BYP-003 pin removed. Signal no longer defeated in CCS.

Number of Tags Removed:
2

Comments: