ML20197G066
| ML20197G066 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 04/21/1986 |
| From: | Withers B PORTLAND GENERAL ELECTRIC CO. |
| To: | Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| Shared Package | |
| ML20197G052 | List: |
| References | |
| TASK-3.D.3.4, TASK-TM NUDOCS 8605160103 | |
| Download: ML20197G066 (2) | |
Text
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'1Emo t U April 21, 1986 Trojan Nuclear Plant Docket 50-344 License NPF-1 i
l Mr. D. F. Kirsch Division of Reactor Safety and Projects 1
U.S. Nuclear Regulatory Commission, Region V 1450 Maria Lane, Suite 210 Walnut Creek CA 94596
Dear Sir:
TROJAN NUCLEAR PLANT f
Response to Notice of Deviation Your letter of March 21, 1986 transmitted a Notice of Deviation. This deviation was identified as a result of inspections conducted by your office during January 28-30 and February 24-28, 1986, as described in Inspection Report 50-344/86-06, which was also transmitted by your letter. is our response to the Notice of Deviation.
Sincerely.
--J n.
Bart D. Withers Vice President Nuclear Attachment c:
Mr. John B. Martin Regional Administrator, Region V U.S. Nuclear Regulatory Commission Mr. Lynn Frank Director State of Oregon Department of Energy 8605160103 860512 PDR ADOCK 05000344 G
PDR 121 S W Sa: mon Sveet Pocyd. Oregm 97204 t-
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Mr. D. F. Kirsch April 21, 1986 Page 1 of 1 NOTICE OF VIOLATION i
As a result of the inspection conducted during the period January 28-30, and February 24-28, 1986, a deviation from your commitments to the NRC was identified.
In accordance with the General Statement of Policy and Procedure for NRC Enforcement Actions, 10 CFR Part 2 Appendix C, as 4
revised, 49 FR 8583 (March 8, 1984), the deviation was set forth below:
A.
FSAR sections 6.4.4.1 and 9.4.1.3 and PGE III.D.3.4 submittal for TMI item III.D.3.4 January 2, 1981, state that, system CB-1 complies to i
Regulatory Guide 1.52, March 1972 (with few exceptions), which endorses basis of reducing the maximum relative humidity to 70 percent and in 1.52 that:
"...A low flow air bleed system should
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satisfy the single failure criterion for providing low humidity (less than 70 percent relative humidity) cooling air flow."
- l i
contrary to the above, at the time of the inspection, the system I
humidistat was set at 85 percent during normal lineup, rather than at the 70 percent value indicated in the FSAR.
This is a Deviation.
l RESPONSE TO NOTICE OF DEVIATION The Control Room Emergency Ventilation System (CB-1) humidistat has been reset to 70 percent for normal system lineup. The cause of this devia-tion was determined to be a procedural error due to inaccurate drawing and Final Safety Analysis Report (FSAR) information. The CB-1 Periodic Operating Test 20-1 has been revised to specify a setting of 70 percent for the humidistat during the heat load test as well as during normal system lineup. The FSAR and Plant drawings will be corrected by July 1, 1986.
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