ML20195D272
| ML20195D272 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/09/1970 |
| From: | Kelly W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Spencer G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| Shared Package | |
| ML20195C961 | List: |
| References | |
| FOIA-88-156 NUDOCS 8806230084 | |
| Download: ML20195D272 (1) | |
Text
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*e UNITED STATES s
ATOMIC ENERGY COMMISSION l e{
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OlVISION OF COMPLIANCE j
REolON 11
- sulTE 818 230 PE ACNTREE sT A EE T.
N oR T N W E S T Tmm 12H S8 7 AT LANT A, ot omot A 30303 i
Octo ber 9,1970
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- 0. S. Sjen:er, Senior Reactor Inspector l
l Division of Jompliance, 22; ion V INS /EOTOR'S EVALLATION AND 0/1NI0N - JAOIFIO CAS AND ELECTRIO 00MPANY (din 3LO OANYON NLOLEAR STATION LNITS 1 AND 2), SAN LUIS OBISPO OOUNTY, 0ALIFORNIA An announ:ed inspection was performed at Diablo Oanyon on Septeraber 15-16, 1970, to review the wolding and nondestructive testing of the liquid holdus tanks and reactor containnent linor.
The quality control, nondestructive testing, waldins jrocedure qualifi-
- stion, and woldor qualification of the reactor containment liner meet the licensee's commitments in his FSAR,Section IX of the ASME Oade, and those paragraphs referen:cd in Section VIII of the ASME Oode.
The quality cont rol and nondestructive testing of the liquid holdup tank did not reet the licensee's co:r.itments.
Lx:essive grinding of the weld reinforcement and the base material adjacent to the weld require ultrasonic measurement of the base c.aterial thickness and an engineering justifiestien for a:ceptance of the thin natorial. The dye jenstrant examination of the ground root pass was not :enducted correctly in that the ex:ess dye was not removed f rom the area being examined and the developer was being applied too lightly in a high wind and being witnessad by a licensee's inspector who had no training l
in dye,,enet rant examinat ion. This rafle:ts en the f abri:stor 's, tittsburgh - Des Moines Steel Oompany, quality control and the l
licensee's quality assurance groe, ram.
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The welding sto:cduros and weldor qualif t:ations for th. two weldors welding the liquid holdug tank ;et the re quirements c f Section IX of the AS2 Jode.
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D. Kelley 00 :!I tk DP.
RJa:ter Insje: tor
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