ML19208B855
| ML19208B855 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 09/07/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Aswell D LOUISIANA POWER & LIGHT CO. |
| References | |
| NUDOCS 7909210493 | |
| Download: ML19208B855 (1) | |
Text
f D
a nto
'o UNITED STATES E 'y 3,( [,g NUCLEAR REGULATORY COMMISSION r,,. - Ap'r"#/ ; [E REGION IV
' 0, '
till RYAN PLAZA DRIVE, SUITE 1000 43-o ARLINGTON, TE XAS 76012
+....
September 7, 1979 In Reply Refer To:
RIV Docket No.
50-382/IE Bulletin No. 79-14, Supplement 2 Louisiana Power and Light Co.
ATTN:
Mr. D. L. Aswell Vice President of Power Production 142 Delaronde Street New Orleans, Louisiana 70174 Gentlemen:
The enclosed supplement to IE Bulletin No. 79-14 is forwarded to you to provide added guidance on the intent of the Bulletin.
If you desire ad-ditional information regarding this matter, please contact this office.
Sincerely, I
g]
,o i.
' l L' ' y b Karl V. Seyfrit
[
Director
Enclosures:
1.
Supplement 2 to IE Bulletin No. 79-14 2.
List of IE Eulletins Issued in the Last Six Months 390E2p 7 9092104G
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Bulletin No. 79-14 Supplement 2 Date:
September 7, 1979 Page 1 of 2 SEIS'C dCISIS FOR AS-EUILT SAFETY-RELATED PIPING SYSTEMS Descr:p; ion of Circumstances:
IE Eulletin No. 79-14 was issued on July 2, revised on July 18, and first supplemented on August 15, 1979. The bulletin requested licensees to take certain actions to verify that seismic analyses are applicable to as-built plants.
upplement 2 provides the following additional guidance with regard c
to implecer.tation of the bulletin requirements:
Nonconforaances One way of satisfying the requirements of the bulletin is to inspect safety-related piping systems against the specific revisions of drawings which were used as input to the seismic analysis.
Some architect-engineers (A-E) however, are recommending that their customers inspect these systems against the latest revisions of the drawings and mark them as necessary to define the as-built configuration of the systems. These drawings are then returned to the A-E's offices for comparison by the analyst to the seismic analysis input. For licensees taking this approach, the seismic analyst will be the person who will identify nonconformances.
The first sr,lement to the bulletin provided guidance with regard to c raluation of nonconformances. That guidance is appropriate for licensees inspecting against later drawings. The licensee should assure that he is promptly notified when the A-E identifies a nonconformance, that the initial engineering judgment is completed in two days, and that the analytical engineering evaluation is completed in 30 days.
If either the engineering judgement or the analytical engineering evaluation indicates that system operability is in jeopardy, the licensee is expected to meet the applicable technical specification action statement.
Visual Approximations Some licensees are visually estimating pipe lengths and other inspection elements, and have not documented which Visual estimation of dimensions is not DUPLICATE DOCUMENT 1 Cl2) where visual estimates are used, the ac 3} @-
Entire doctmient previousl{y entered ance requirements. Further, in documen ically identify those data that were vi into system under:
ANo
'940% 22.OIM No. of pages:
~'
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Bulletin No. 79-14 Supplement 2 Date: September 7, 1979 Page 1 of 2 SEIS'EC AhALYSIS FOR AS-EUILT SAFETY-RELATED PIPING SYSTEMS Descr= t:c of Circu= stances:
IE En' 4:in No. 79-14 was issued on July 2, revised on July 18, and first supplemented on August 15, 1979. The bulletin requested licensees to take certain actions to verify that seismic analyses are applicable to as-built plants. Supplement 2 provides the following additional guidance with regard to i:plementation of the bulletin requirements:
Nonecnfo mances One way of satisfying the requirements of the bulletin is to inspect safety-related piping systems against the specific revisions of drawings which were used as input to the seismic analysis. Some architect-engineers (A-E) however, are recommending that their customers inspect these systems against the latest revisions of the drawings and mark them as necessary to define the as-built configuration of the systems.
These drawings are then returned to the A-E's offices for comparison by the analyst to the seismic analysis input. For licensees taking this approach, the seismic analyst will be the person who will identify nonconformances.
The first supplement to the bulletin provided guidance with regard to evaluation of nonconformances. That guidance is appropriate for licensees inspecting against later drawings. The licensee should assure that he is promptly notified when the A-E identifies a nonconformance, that the initial engineering judgment is completed in two days, and that the analytical engineering evaluation is compieted in 30 days.
If either the engineering judgement or the analytical engineering evaluation indicates that system operability is in jeopardy, the licensee is expected to meet the applicable technical specification action statement.
Visual Approximations Some licensees are visually estimating pipe lengths and other inspection elements, and have not documented which a
~
Visual estimation of dimensions is not (
where visual estimates are used, the acc DUPLICATE DOCUMENT 890 2 ance requirements. Further, in document 1cally identify those data that were vis Entire document previously ered into system under:
ANO WoG2 Ol09 No. of pages:
!O