ML19259D096
| ML19259D096 | |
| Person / Time | |
|---|---|
| Site: | Bailly |
| Issue date: | 08/15/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Shorb E NORTHERN INDIANA PUBLIC SERVICE CO. |
| References | |
| NUDOCS 7908300285 | |
| Download: ML19259D096 (1) | |
Text
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UNITED STATES 8'
T,n NUCLEAR REGULATORY COMMISSION
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REGION 111 o
709 ROOSEVELT ROAD k
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GLEN ELLYN, ILLINolS 60137
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AUG 151979 Docket No. 50-367
, Northern Indiana Public Service Company
' ATTN:
Mr. Eugene M. Shorb Senior Vice President 5265 Hohman Avenue Hammond, IN 46325 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 additional information regarding this matter, please contact this office.
Sincerely, Y.
1, James G. Keppler Director
Enclosure:
Supplement IE Bulletin No. 79-14 cc w/ enc 1:
Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Mr. Dean Hansell, Office cf Assistant Attorney General 2107 186 7 908 3 00 46T
SSINS:
6820 Accession No:
7908050360 4
e l
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 -
4 August 15, 1979 L
Supplement IE Bulletin No. 79-14 SEISMIC ANALYSIS FOR AS-BUILT SAFETY-RELATED PIPING SYSTEMS Discription of Circumstances:
IE Bulletin No. 79-14 was issued on July 2,1979 and revised en 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 Pipin_g 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 inspectons, the licensee is expected to use measuring 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 o 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 i accordance with Item 4 of the Bulletin to perform an evaluation of the significance of the nonconformance as rapidly as possible to determine whether er not the operability of the system might be jeopardized during a safe shutdown earthquake as defined in the Regulations. This evaluation is expected to be done in two phases involeing 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 i
required by Item 2 and 3 of the Bulletin as soon as possi,hle.
The licensee F
must report the results of these ins ections in accorda w
ire-ments for content and sch DUPLICATE DOCUMEN] j ]J
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