ML20141F137

Forwards Safety Sys Functional Insp Rept 50-313/86-01 on 860106-31.Design of Facility Emergency Feedwater Sys Found Sound.Programs for Modifying,Testing & Maintaining Sys Were Considered Deficient

ML20141F137
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/31/1986
From:	Taylor J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:	Jeffery Griffin ARKANSAS POWER & LIGHT CO.
Shared Package
ML20141F141	List: ML20141F137 ML20141F203
References
IEB-85-003, IEB-85-3, TAC-61519, TAC-61520, NUDOCS 8604220472
Download: ML20141F137 (3)

See also: IR 05000313/1986001

Text

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UNITED STATES

$*/ NUCLEAR REGULATORY COMMISSION

3 .. g WASHINGTON, D. C. 20555

a

-y

k ..... / March 31, 1986

Docket No. 50-313

Arkansas Power & Light Company

ATTN: Mr. John M. Griffin

Senior Vice President - Energy Supply

P. O. Box 551

Little Rock, Arkansas 72203

Gentlemen:

SUBJECT: SAFETY SYSTEM FUNCTIONAL INSPECTION REPORT 50-313/86-01

This letter forwards the report of the Safety System Functional Inspection

perfomed by an NRC team over the period January 6-31, 1986 involving

activities authorized by NRC Operating License Number DPR-51 for the

Arkansas Huclear One-Unit I facility. This inspection was conducted

jointly by members of Region II, Region IV, the Office of Inspection

and Enforcement, and NRC contractors. At the conclusion of the inspection,

the findings were discussed at an exit meeting with those members of your

staff identified in the appendix to the enclosed inspection report.

This NRC effort at Arkansas Nuclear One represents a new inspection approach

involving an assessment of the operational readiness and functionality of

selected safety systems. Particular attention is directed to the details

of modifications and design control, quality of maintenance and surveillance,

and adequacy of testing applicable to those safety systems. At ANO, the team

selected the f.ergency feedwater (EFW) system as the primary focus of its review.

The report includes findings that may result in enforcement action, which

would be the subject of subsequent correspondence. The report also addresses

other observations and conclusions made by the inspection team. Section II

of the report is a summary of the safety effects of the more significant

findings on the operational readiness of the selected safety system.

In general, the inspection team fcund the design of the AN0-Unit 1 EFW system to

be sound; however, several aspects of your programs for modifying, testing, and

maintaining this system were considered to be deficient. The inspection team

identified significant cor.cerns in the areas of mechanical design changes and

modifications, seismic interaction, torque switch settings of motor-operated

valves, and testing of EFW system components. We request that you respond to

this office within 45 days describing the actions that you have taken or intend

to take to improve management controls over the specific licensed activities

described in Section II of this report as significant findings. In the area of

motor-operated valves, consideration should be given to providing an expedited

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8604220472 860331

PDR ADOCK 05000313

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Arkansas Power & Light Company -2-

response to IE Bulletin 85-03. In the area of testing EFW system components,

consideration should be given to conducting a comprehensive review of the

adequacy of the test programs covering EFW system components at ANO-1.

While planning corrective actions based on the weaknesses identified in the

enclosed report, it is important that you realize that the focus of this

inspection was only on the emergency feedwater system at AN0-1. Therefore ,

consideration should be given to identifying and correcting similar problems

in other safety-related systems.

Should you have any questions concerning this inspection, we would be pleased

to discuss them with you.

Sincerely,

J/me +s M. Tay1 , Director

ffice of Inspection and Enforcement

Enclosure:

Inspection Report 50-313/86-01

cc w/ enclosures

J. M. Levine, Director, Site Nuclear Operations

Arkansas Nuclear One

P. O. Box 608

Russelville, Arkansas 72801

Arkansas Radiation Control Program Director

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