05000259/LER-1981-017-03, /03L-0:on 810423,Athens 161Kv Line & D Cooling Tower Switch Gear Tripped.Diesel Generators Failed to Immediately Demonstrate Operability Per Tech Spec 4.9.B.1. Caused by Personnel Error.Operators Will Review Incident

/03L-0:on 810423,Athens 161Kv Line & D Cooling Tower Switch Gear Tripped.Diesel Generators Failed to Immediately Demonstrate Operability Per Tech Spec 4.9.B.1. Caused by Personnel Error.Operators Will Review Incident

ML20004B150
Person / Time
Site:	Browns Ferry
Issue date:	05/22/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004B147	List: 05000259/LER-1981-017, Forwards LER 81-017/03L-0 05000259/LER-1981-017-03, /03L-0:on 810423,Athens 161Kv Line & D Cooling Tower Switch Gear Tripped.Diesel Generators Failed to Immediately Demonstrate Operability Per Tech Spec 4.9.B.1. Caused by Personnel Error.Operators Will Review Incident
References
LER-81-017-03L-01, LER-81-17-3L-1, NUDOCS 8105270300
Download: ML20004B150 (2)

LER-1981-017, /03L-0:on 810423,Athens 161Kv Line & D Cooling Tower Switch Gear Tripped.Diesel Generators Failed to Immediately Demonstrate Operability Per Tech Spec 4.9.B.1. Caused by Personnel Error.Operators Will Review Incident

Event date:
Report date:
2591981017R03 - NRC Website

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 14 7S REPORT DATE 80 EVENT DESCRIPT!ON AND PROBABLE CONSEQUENCES h l On two separate occasions (4/23/81 and 4/24/81) during normal operation, the Athens I

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Tennessee Valley Authority Form BF-17 Browns Ferry Nuclear Plent BF 15.2 3/24/81 LER SUPPLEMENTAL INFORMATION BFRO 259 /a1017 _ Technical Specification Involved 4 9.B.1 Reported I'nder Technical Specification 6.7.2.b (2)

Date of Occurrence 4/23/81

, Time of Occurrence 152r Unit 1&2

!dentification and Description of Occurrence,:

Personnel failed to run SI's when Athens 161 KV line tripped.

Conditions Prior to Gecurrence:

Unit I refueling outage.

Unit 2 at 98%.

Unit 3 at 95%

Action specified in the Technical Specification Surveillance Requirements met due to inoperable equipment. Describe.

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Required testing was not performed.

Apparent Cause of Occurrence:

Personnel failed to recognize the requirements of T.S. 4.9.B.l.

Analysis of Occurrence:

There was no danger to the health or safety of the public, no release of activity, no damage to plant or equipment, and no resulting significant chain of events.

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Corrective Action

1 Reinstructed personnel threugh retraining. Form BF 14 will be revised to include a signoff that applicable SI's are performed.

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Failure Data:

None

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• Reten tion : Period - Lifetime; Responsibility - Document Control Supervisor

• Revision :