ML18153C304

Responds to NRC 900626 Ltr Re Violations Noted in Insp Rept 50-281/90-20.Corrective Actions:Leaking Drain Plug & Upper Drain Plug on Motor Replaced W/Oil Drain Assemblies Composed of Piping & Valves

ML18153C304
Person / Time
Site:	Surry
Issue date:	07/26/1990
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
90-408R2, NUDOCS 9008010201
Download: ML18153C304 (4)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 July 26, 1990 United States Nuclear Regulatory Commission

• Serial No. 90-408R2 Attention: Document Control Desk NO/RJS Washington, D. C. 20555 Docket No: 50-281 License Nos. DPR-37 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 2 REPLY TO A NOTICE OF VIOLATION NRC INSPECTION REPORT NO. 50-281/90-20 We have reviewed your Inspection Report Nos 50-280/90-20 and 50-281 /90-20 dated June 26, 1990. Our reply to the Notice of Violation for Unit 2 enclosed in the report is provided as an attachment to this letter. *

• We have no objection to this reply being disclosed to the public.

• 1f you have any further questions, please contact us .

• Very truly yours,

• \\CC \

\__ ' ' ) \s.-;;;,.c..""'*

W. L. $tewart Senior Vice President - Nuclear Attacbment

"'

• I cc: U. S. Nuclear Regulatory Commission 1~

Region II 101 Marietta Street, N. W.

Suite 2900 Atlanta, Georgia 30323 Mr. W. E. Holland NRC Senior Resident Inspector Surry Power Station

• ~008010201 900726 i=*:o,::;.:

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ATTACHMENT

• Reply to Notice of Violation Reported During the NRC Maintenance Team Inspection Inspection Report No. 50-281 /90-20

• NRC Comment; During the Nuclear Regulatory Commission (NRC) inspection conducted between the period of May 6 through June 2, .1990, a violation of NRC requirements was identified. In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1990), the violation is listed below:

10 CFR -50, Appendix B, Criterion XVI and the licensee's Quality Assurance Program (VEP 1-5A, Section 17.2.16) collectively state, in part, that measures shall be established to insure that conditions adverse to quality are promptly identified ~nd corrected.

Contrary to the above, a condition adverse to quality was identified on January 25, 1990, when oil was discovered to be leaking from .the lower bearing oil reservoir. drain plug for the outside recirculation spray pump 2-RS-P-2A motor, and was not adequately corrected until May 16, 1990, after the NRC inspectors questioned pump operability.

This violation has been categorized as a Severity Level IV violation (Supplement 1) and applies to Unit 2 only .

Reply to Notice of Violation

• RESPONSE (1)

Inspection Report No. 50-281 /90-20 ADMISSION OR DENIAL OF THE ALLEGED VIOLATION The violation is correct as stated.

(2) REASON FOR VIOLATION

- When the leaking drain plug on the Unit 2 Outside Recirculation Spray Pump Motor 2A (2-RS-PM0-2A) was initially discovered in January 1990, the leak was evaluated as thread leakage and not an operability concern. Furthermore, a modification to the drain plug arrangement to facilitate the obtaining of oil samples was under development independently* which would also correct the leaking problem when installed.

In February, a work request was submitted for repair of the leak. Work was not initiated at this time because of difficulties in identifying and procuring proper replacement parts and thread sealant materials. Again, no great urgency was attached to this work because the operability of the pump was not considered to be affected.

In response to inquiries from the Resident NRG Inspectors in May, 1990,

~n operability assessment was performed, which concluded that with the calculated oil leak rate, the pump could have performed its safety-related function. As stated in the Inspection Report, the faulty drain plug was not discovered until a new drain arrangement was being installed at the oil reservoir. *

(3) CORRECTIVE STEPS WHICH HAVE BEEN TAKEN AND THE RESULTS ACHIEVED The leaking drain plug and the upper drain plug on the same motor were replaced with oil drain assemblies composed of piping and valves. Upon discovery of the sheared drain plug and the crack in a similar location in the upper drain plug, the remaining upper and lower oil reservoir drain plugs for both units' outside recirculation spray pump motors were inspected. Only the Unit 1 Outside Recirculation Sp.ray Pump Motor ~B had drain plugs similar to those found to be faulty in Unit 2. These plugs were also_ replaced with the improved oil drain assemblies .

(4) CORRECTIVE STEPS WHICH WILL BE TAKEN TO AVOID FURTHER VIOLATIONS An oil drain assembly, consisting of piping and valves, will be installed on the remaining outside recirculation spray pump motors during the forthcoming outages for each unit.

(5) THE DATE WHEN FULL COMPLIANCE WILL BE ACHIEVED Full compliance was achieved when the leaking drain plug was replaced with the improved oil drain assembly .