ML19249B928
| ML19249B928 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/15/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7909070093 | |
| Download: ML19249B928 (2) | |
Text
T/G ga a r c,
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'o, UNITED STAT ES
' 7, NUCLEAR REGULATORY COMMISSION
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i REGION 11 5
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,8 101 M ARIETT A ST., NM, SUIT E 3100
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1 t,1970 In Reply Refer To:
RII:JP0 50-302 Florida Power Corporation Attn:
W. P. Stewart, Manager Nuclear Operationc P. O. Box 14042, Mail Stop C-4 St. Petersburg, Florida 33733 Gentlemen:
The enclosed supplement to Bulletin 79-14 is forwarded to you to provide added guidance on the intent of the Bulletin.
If you desire additional information regarding this matter, please contact this office.
Sincerely, s
- ~
_ _.ywww x
i James P. O'Reilly Director
Enclosures:
1.
Supplement IE Bulletin No. 79-14 2.
List of IE Bulletins Issued in :.ast Six Months 7909070 073 g;
3 AUG 151979 Florida Power Corpor:s t i on.
cc w/ encl:
G.
P Beatty, Jr.
Nuclear Plant Super;,., nt Post Office Box 122'-
Crystal River, Flor 2
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SSINS: 6820 Accession No:
7908080360 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMEhT WASHINGTON, D.C.
20555 August 15, 1979 Supplement IE Bulletin No. 79-14 SEISMIC ANALYSIS FOR AS-BUILT SAFETY-RELATED PIPING SYSTEMS Description of Circumstances:
IE Bulletin No. 79-14 was issued on July 2, 1979 and revised on July 18, 1979.
The bulletin requested licensees to take certain actions to verify that seismic analyses are applicable to as-built plants.
This supplement to the bulletin provides additional guidance and definition of Action Items 2, 3, and 4.
To comply with the requests in IE Bulletin 79-14, it will be necessary for licensees to do the following:
2.
Inspect Part of the Accessible Piping For each system selected by the licensee in accordance with Item 2 of the Bulletin, the licensee is expected to verify by physical inspection, to the extent practicable, that the inspection elements meet the acceptance criteria.
In performing these inspections, the licensee is expected to use measring techniques of sufficient accuracy to demonstrate that acceptance criteria are met.
Where inspection elements important to the seismic analysis cannot be viewed because of thermal insulation or location of the piping, the licensee is expected to remove thermal insulation or provide access. Where physical inspection is not practicable, e.g.,
for valve weights and materials of construction, the license is expected to verify conformance by inspection of quality assurance records.
If a nonconformance is found, the licensee is expected in accordance with Item 4 of the Bulletin to perform an evaluation of the significance of the nonconformance as rapidly as possible to determine whether or not the operability of the system might be jeopardized during a rafe shutdown earthquake as defined in the Regulations. This evaluation is expected to be done in two phases involving an initial engineering judgement (within 2 days), followed by an analytical engineering evaluation (within 30 days). Where either phase of the evaluation shows that system operability is in jeopardy, the licensee is expected to meet the applicable technical specification action statement and complete the inspections The licensee required by Item 2 and 3 of the Bulletin as soon as possible.
must report the results of thegtipspections tu accordance with the require-m ;& - 7_
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im ments for content and scheduleW jDUPLICATE DOCUMENT II 3.
Inspect Remaining Piping
. dEntire document previously entered The licensee is expected to it} into system under:
safety-related piping systems f
report the results in accerdar')
ANo M O S Of50 % D i
schedule as given in Item 3 oQ No, of pages:
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