ML19352A889
| ML19352A889 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 05/28/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Ippolito T Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8106020297 | |
| Download: ML19352A889 (2) | |
Text
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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEC 37401 tn 4
400 Chestnut Street Tower II p
r(hh 1
IP. N 1 U
May 28, 1981
' 2.
JUN O 21981 * [8
"* Wi=
l Director of Licensing Attention:
Mr..homas A. Ippolito, Chief Operating Reactors Branch No. 2 U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Ippolito:
Ii. the Matter of the
)
Docket No. 50-259 Tennessee Valley Authority
)
50-260 50-296 Enclosed for your review is an additional request for relief from ASME Section XI examination requirements for Browns Ferry Nuclear Plant units 1, 2, and 3 Very truly yours, TENNESSEE VALLEY AUTHORITY
. M.' Mills, Man 4ger Nuclear Regulation and Safety Subscribed aJn 9 orn to bef e me th a X _ day of A.d 1981.
A i
i Notary Public My Commission Expires Enclosure 8106020,2y Ao l~ qual Oppor tuoity t m;;10yer
J O #
REQUEST FOR RELIEF ISI-14 Component:
Pressure-retaining bolting Class:
2 Inspection Requirements:
Visual, surface, and volumetric examination of pressure-retaining bolting exceeding one inch in diameter, examination categocy C-D.
Basis for Relief:
Examination of class 2 pressure-retaining bolting in accordance with the Summer 1975 Addenda of Section XI exceeds inspection requirements for class 1 pressure-retaining bolting. We do not feel an increased level of safety is obtained from a more restrictive examination of class 2 components.
An examination program for class 2 pressure-retaining bolting similar to that for class 1 would be desirable. This type of examination has been incorporated in the 1977 Edition, Summer 1978 and Summer 1979 Addenda or Section XI, which Browns Ferry may be required to meet in the future.
Alternate Inspection:
Class 2 pressure-retaining bolting exceedin.,
two inches in dia.acter shall be volumetrica.3:
examined in accordance with Table IWC-2500-1, examination category C-D of the 1977 Edition, Summer 1979 Addenda of Section XI.
Pressure-retaining bolting two inches or lcss in diameter will not be examined.