ML20069M455

Telecopy RO 50-259/83021:on 830424,130 Fuel Bundles Unloaded from Core & Placed in High Density Fuel Storage Rack in Spent Fuel Storage Pool Not Tested for Boron Concentration. Caused by Inadequate Procedures

ML20069M455
Person / Time
Site:	Browns Ferry
Issue date:	04/25/1983
From:	Coffey J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
RO-50-259-83021, NUDOCS 8305030501
Download: ML20069M455 (2)

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u M2 83(). 2 6 865 ni NUC PR ARNS, 1520 CST 2-C T. G. Cccpbell, 1760 CST 2-C G. L. Paulk, NRC T. L. Chinn. BFN TELECOPY TO NRC C. W. Crawford, 670 CST 2-C Apr. 25, 1983 A. W. Crevasse, 401 UBB-C G. S. Harrison, Plt Supt Office L. M. Mills, 400 CST 2-C U. S. Nuclear Regulatory Commission Shift Engineer

Region II F. A. Szczepanski, 417 UBB-C 101 Marietta Street, NW W. C. Thomison, BFN Suite 3100 D. L. Williams, W10B85C-K Atlanta, Georgia 30303 BFRO-50-259/83021 hf a . .

Reported under Technical Specification 6.7.2.a.(2) %3  ;

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Telecony : Date 4/25/83 Time: 1315  :;

Teleohone : Date 4/25/83 Time: 1230 b -

Person Contacted: Floyd Cantrell -

rs i Date of Occurrence: 4/24/83 Time of Occurrence: 1355 Unit 1 Technical Specification Involved: 5.5.B Conditions Prior to Occurrence i

Unit 1 - Refueling outage Unit 2 - 79% power Unit 3 - 925 power Units 2 and 3 were not affected by this event.

Identification and Descriction of Occurrence One-hundred thirty (130) fuel bundles were unloaded from the core and placed in a high-density fuel storage rack in the spect fuel storage pool, that had not been tested for proper boron concentration.

l Anoarent Cause of Occurrence The qualification of the high-density fuel storage racks had not been thoroughly verified prior to preparation of fuel assembly transfer forms.

This was aggravated by a failure to have properly qualified fuel racks documented in a plant instruction which would normally be consulted and readily available during preparation of fuel assembly transfer forms.

Other Related Events l

None i

I 8305030501 830425 PDR ADOCK 05000259 u S PDR L'

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TELECOPY TO NRC Apr. 25, 1983 Corrective Action Taken or Planned (1) Fuel handling operations were stopped at 1355 hours0.0157 days <br />0.376 hours <br />0.00224 weeks <br />5.155775e-4 months <br /> to investigate the problem. Concurrently, a field change to the fuel assembly transfer forms was made to move affected bundles from an unqualified to a qualified fuel storage rack. Movement of fuel from the unqualified to a qualified rack was allowed to proceed, and was subsequently suspended as 2150 hours0.0249 days <br />0.597 hours <br />0.00355 weeks <br />8.18075e-4 months <br />, for a safety analysis to address unloading of fuel in the untested rack.

(2) Tag boards on' the refuel floor and in the control room will be marked to clearly identify any untested fuel storage racks.

(3) Plant procedures will be modified to document which fuel storage racks have been fully tested and a control form will be included in work plans related to installation of fuel racks to provide positive control for updating the affected plant procedures.

(4) Second person verification by a nuclear engineer will be added to fuel assembly transfer forms.

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. A. Cor d r eting Power lant Superintendent Browns Ferry Nuclear Plant l

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