ML18283B624

Responding to Letter of 4/20/1976, Referring to IE Inspection Reports for 50-259/76-6 & 50-260/76-6, Letter Advising Tennessee Valley Authority Do Not Consider Any Part of Reports to Be Proprietary

ML18283B624
Person / Time
Site:	Browns Ferry
Issue date:	05/06/1976
From:	Gilleland J Tennessee Valley Authority
To:	Moseley N NRC/RGN-II
References
IR 1976006
Download: ML18283B624 (11)

Text

,OiUTIO~ 830 Power Building TENNESSEE VALLEY AUTHORITY O

~

",'b'~~s-to<~ CHATTANOOGA. TENNESSEE 37401 May 6, 1976 Mr. Horman C. Moseley, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II Suite 818 230 Peachtree Street, HN.

Atlanta, Georgia 30303

Dear Mr. Moseley:

This is in response to F. J. Long's letter of Apri1 20, 1976, IE:II:BJC 50-259/76-6, 50-260/76-6, which transmitted.

for our. review an IE Inspection Report (same number) Ue have reviewed that report and do not consider any part of to be proprietary.

it Very truly yours,

/ ,'A~gr'g J. F.. Gillelaad Assistant Manage& of Power An Equal Opportunity Employer

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O UNITED STATES Cy ~i NUCLEAR REGULATORY COMMISSION nO REGION II 0 Q 330 PEACHTREE STREETe H W SUITE SIS ATLANTA,GEORGIA 30303 APR 2 0 1976 In Reply Refer To:

IE3IIIBJC 50-260/76-6 Tennessee Valley Authority ATTN: Mr. Godwin Wi11iams, Jr.

Manager of Power 818 Power Building Chattanooga, Tennessee 37401 Gentlemen:

This refers to the inspection conducted by Mr. T. D. Gibbons of this office on March 10-12, 1976 and March 31 April 2, 1976, of activities authorized by NRC Operating License Nos. DPR-33 and DPR-52 for the 10 Browns Ferry Units 1, and 2 facilities, and to the discussion of our findings held. with Mr. J. R. Hilding at the conclusion of the inspection.

Areas examined during the inspection and our findings are discussed in the, encl'osed inspection report. Within these areas, the inspection consisted of selective examination of procedures and repxesentative records, interviews with personnel, and observations by the inspector.

Within the scope of this inspection, no items of noncompliance were disclosed.

In accordance with Section 2.790 of the KRC's "Rules of Practice,"

Part 2, Title 10,, Code of Federal Regulations, a copy of this letter and the enclosed inspection report will be placed in the NRC's Public Document Room. If this report contains any information that you believe to be proprietary, it is necessaxy that you submit a written application to this office requesting that such information be withheld from public disclosure., If no proprietary information is identified, a written statement to that, effect should be submitted.. If an application is submitted, it must fully identify the bases for which information is claimed to be propxietary., The application should be prepared so that infoxmation sought to be withheld is incorporated in .a separate paper and. referenced in the app&.cation since the application will be placed in the Public. Document Room. Your application,, or written statement,

APR 20 816 Tennessee Valley Authority should be submitted to us within 20 days. If we are not contacted as specified,, the enclosed report and this letter may then be placed in the Public Document Room.

Should you. have any questions concerning this letter, we will be glad to discuss them with you.

Very truly yours, P.. J. Long, Chief Reactor Operations and Nuclear Support Branch

Enclosure:

IE'nspection Report Nos.

50-259/76-6 and'0-260/76-6.

~s REotl, UNITED STATES 0

Cy NUCLEAR REGULATORY COMMISSION fl O

I 0 K REGION It 230 PKACHTREK STREET, N W SUITE $ $ 8

/g ATLANTA'KORCRIA 30303

+**++

IE Inspection Report Nos. 50-259/76-6 and 50-260/76-6 Licensee: Tennessee Valley Authority 818 Power Building Chattanooga, Tennessee 37401 Facility Name: Browns Ferry Units 1 and 2 Docket Nos.: 50-259 and 50-260 License Nos.: DPR-33 and DPR-52 Category: C/C Location. Limestone County, Alabama Type of License: GE, 1098 Mme, BWR Type of Inspection: Fire Damage Restoxation Dates of Inspection. March 10-12, 1976 March 31-April 2, 1976 Dates of Px'evious Inspection: February 9-11, 1976 February 24-March 1, 1976 Inspectox-in-Charge: T. D. Gibbons, Reactor Inspector Engineering Support Section No. 1 Reactor Construction and .Engineering Support Branch Accompanying Inspector: None Other Accompanying Personnel n Principal Inspector: yy .

(

~~~vZ, yi B.<J. Cochran, Reactor Inspector

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/ Date Prospects Section Reactor Construction and Engineering Support Branch Reviewed by:

J. C . ryant, C f Date Pr cts Section Reactor Construction and Engineering Support Branch

IE Rpt. Nos. 50-259/76-6 and 50-260/76-6

SUMMARY

OF FINDINGS I. Enforcement Items None.

II. Licensee Action: on,Previousl Identified Enforcement Matters Infractions 76-4-Al(II) Audits The audit schedules are not updated at the required frequency, and there is no documented evidence that audits are conducted in accordance wf.th an audit plan. This is an infraction. This item remains open.

76-4<<A2(II) Cable Minimum Bend Radius A cabl'e was installed in Unit 2 in violation of the minimum bend. radius. This. is an infraction. This item remains open.

III. New Unresolved Items None IV.'tatus of'reviousl Re orted Unresolved Items None.

None VI'.. Unusual. Occurrence None.

VII. Other Si nificant Findin s None:

IE Rpt. Nos. 50-259/76-6 and 50-260/76-6 VIII. Mana ement Interview The exit interview was held with Mr. J. R. Hilding, BFNP Restora-tion gA Manager, wherein the subjects of this inspection were discussed. No items of noncompliance were identified.

IE Rpt. Nos. 50-259/76>>6 and 50-260/76-6 DETAILS I Prepared by: i-lz,-74 T. D. Gibbons, Reactor Inspector Date Engineering Support Section No. 1 Reactor Construction and Engineering Support Branch Dates of Inspection: March 10-12 and March 31 April 2, 1976 Reviewed by: M / j r r~i. izl'7<:

S. D. Ebneter, Acting Section Chief Date Engineering Support Section No. 1 Reactor Construction and Engineering Support Branch The discussion contained in this section of this report applies to Unit 1 and 2 equally unless noted otherwise.

1. Persons Contacted Tennessee Valle Authori (TVA)

J. R. Hilding - Fire Restoration QA Manager J. E. Law QA Engineer D. Wright - Electrical Engineer

2. Sc e of Ins ection This inspection was performed to verify that the requirements of Browns Ferry Electrical Maintenance Instruction (EMI) 20 have been met. The inspector observed work on the installation of Flameastic and firestops being installed by procedure BF 206R, (Electrical Penetration Seal and Firestop Installation and Inspection).

3. lementation of Electrical Maintenance Instruction EMI) 20 (Unit 1 Onl )

The inspector reviewed the records of the maintenance inspection activities which are covered by EHI 20 in Unit 1. This covered the cleaning of panels, local control stations, motor operated valves and motors. The records included the inspection, cleaning and retest as required. The records were found to be complete. The inspector made a visual check in several areas verifying that the work reported in the records was completed. The inspector identified no items of noncompliance.

IE Rpt. Nos. 50-259/76-6 and 50-260/76-6 I-2

4. Im lementation of BF 206R - Electrical Penetration Seal and Firesto Installation and Ins ection The inspector observed the work progressing on the installation of penetration seals and firestops on elevations 639, 621 and 591 of the reactor buildings in both units. On each elevation the equip-ment was covered with plastic sheets. Notices of no smoking were prominently displayed and firewatches were found in all areas. The craftsmen were applying the Flameastic at 1/4 inch wet which will dry to an 1/8 inch thickness. The procedure calls for 1/8 inch dry thickness. TVA inspectors were in the area observing the operation and assuring that the procedural requirements were fulfilled. The Flameastic 71 compound is a viscous, cream colored liquid which is applied by use of high pressure spray. It was noted that cable tags and tray labels were protected to prevent the Flameastic from covering any necessary information.

The firestops are constructed using various materials such as Cerafibre, Cerefoam Marinite, Silicone RTV foam and Silicone insulation. The installation covered TVA drawings, the procedure and manufacturers operating manuals. Specific inspection acceptance criteria are identified and QC signatures are required to hold points. The inspector observed the work in progress in the spreading room and various penetrations in the reactor building. Quality con-trol in-process inspections were being performed concurrent with the installation work. The inspector has no further questions at this time.

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