ML20207Q736
| ML20207Q736 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 07/19/1983 |
| From: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20204G536 | List: |
| References | |
| FOIA-86-151, FOIA-86-197 NUDOCS 8703050256 | |
| Download: ML20207Q736 (1) | |
Text
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UNITED STATES Lt b
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NUCLEAR REGULATORY COMMISSION f
i REGION V 1450 MARIA L ANE. Sulf E 21o 5,
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JUL 191983 Docket Nos. 50-275 50-323 MEMORANDUM FOR:
G. W. Knighton, Chief, Licensing Branch No. 3 FROM:
T. W. Bishop, Chief, Reactor Projects Branch No. 2
SUBJECT:
RECOMMENDATION FOR DIABLO CANYON BOARD NOTIFICATION Region V is examining and evaluating the subject licensee's report that the piping wall thickness in several areas of the Reactor Coolant System (RCS) is less than code minimum wall. To this end, we have employed Parameter, Inc.,
to independently conduct and evaluate non-destructive tests of the RCS piping. We have also chaired a NRC/ licensee public meeting to discuss the licensee's report, dated July 1, 1983, regarding the reported RCS minimum wall problem. The. report from Parameter, dated July 14, 1983, and the transcript of the public meeting, dated July 14, 1983 provide information relative to the apparent RCS minimum wall problem and to the adequacy of construction Quality Assurance.
Copies of the referenced, documents are enclosed.
The Region V staff recommends that this information be brought to the
-attention of the Diablo Canyon licensing and appeal boards,
g 02 e-'
T. W ish Chief, Reactor
'?rojects Branch No. 2 Enc 1:
(1) PG&E Report dated July 1, 1983/with forwarding letter of July 5, 1983 (2) Parameter, Inc., Report dated July 14, 1983/with forwarding letter dated July 14, 1983 and eratta sheet dated July 15, 1983 (3) Transcript of NRC/PG&E public meeting dated Jul'y 14, 1983 cc:
J. B. Martin, RV L. Chandler, OELD D. F. Kirsch, RV B. Buckley, NRR H. Schierling, NRR J. Carlson, RV P. Morrill, RV
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