05000260/LER-1980-030-03, /03L-0:on 800811,during Normal Operation, Performing Surveillance Instruction 4.2.B.69,pressure Switches PS-3-204A & PS-3-204B Found Outside Limits.Caused by Setpoint Drift.Switches Recalibr & Tested

/03L-0:on 800811,during Normal Operation, Performing Surveillance Instruction 4.2.B.69,pressure Switches PS-3-204A & PS-3-204B Found Outside Limits.Caused by Setpoint Drift.Switches Recalibr & Tested

ML18025B059
Person / Time
Site:	Browns Ferry
Issue date:	09/04/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18025B058	List: 05000260/LER-1980-030, Forwards LER 80-030/03L-0 05000260/LER-1980-030-03, /03L-0:on 800811,during Normal Operation, Performing Surveillance Instruction 4.2.B.69,pressure Switches PS-3-204A & PS-3-204B Found Outside Limits.Caused by Setpoint Drift.Switches Recalibr & Tested
References
LER-80-030-03L-04, LER-80-30-3L-4, NUDOCS 8009090462
Download: ML18025B059 (4)

LER-1980-030, /03L-0:on 800811,during Normal Operation, Performing Surveillance Instruction 4.2.B.69,pressure Switches PS-3-204A & PS-3-204B Found Outside Limits.Caused by Setpoint Drift.Switches Recalibr & Tested

Event date:
Report date:
2601980030R03 - NRC Website

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3 and PS-3-204B, Reactor High Pressure, setpoints were found to o crate outside T.S.

CIQ ~Table 3.2.B limits.

Redundant switches PS-3-204C and PS-3-204D were available and Loperable.

There was no effect on the public health or safety.

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and functionally tested for repeatability.

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8030 Technical Specification Involved Table 3.2. B Reported Under Technical Specification Date of Occur> ence 8/ll/80 Time of Occurrence 1000 Unit Identification and D~escri tion'oi'Occurrence:

Pressure.

switches PS-3-204A and B, Reactor High Pressure, setpoints were found to operate outside T.S. Table 3.2.E limits.

Conditions Prior to Occurrence:

Unit 1 at 88% MWe.

Unit 2 at 96% MWe Unit 3 at 94% MWe Action specified in the Technical Specification Surveillance Requirements met due to i~no arabia estu~imont.

Describe.

N/A

~Agarent Cause of Occurrence:

Setpoint drift.

Analysis of Occurrence:

There was no damage to the plant equipment.

There was no activity release, no personnel exposure or injury and no danger to the health or safety of the public.

t..orrectivc Action:

The switches were inspected, recalibrated and functionally tested for repeatability.

The switches will be replaced by an analog system.

l'vilurc Data:

260/7823

~:Retention:

• Revision:

eriod - Lifetime; Responsibility - Administrative Supervisor

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