IR 05000275/1982013

Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in IE Insp Rept 50-275/82-13

ML20055A186
Person / Time
Site:	Diablo Canyon
Issue date:	07/08/1982
From:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:	Crane P PACIFIC GAS & ELECTRIC CO.
References
NUDOCS 8207150558
Download: ML20055A186 (1)

Text

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JUL 8 1982 Docket No. 50-275 , Pacific Gas and Electric Company l P. O. Box 7442 San Francisco, CA 94120 l Attention: Philip A. Crane, Jr.

Assistant General Counsel Gentlemen: Thank you for your letter dated June 23, 1982, informing us of the steps you have taken to correct items which we brought to your attention in our letter dated May 24, 1982.

Your corrective actions will be verified during a future inspection.

Your cooperation with us is appreciated.

Sincerely, T. W. Bishop, Chief Reactor Construction Projects Branch bec: Document Control Desk (RIDS) Distributed by RV w/cy ltr dtd 6/23/82: State of CA (Johnson), Resident Inspector (Carlson, Mendonca)

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 ...............m.m June 23, 1982 Mr. R. H. Engelken, Regional Administrator Region V           m U. S. Nuclear Regulatory Commission         i:'  ^

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Re: Docket No. 50-275 3 ' 7;; Diablo Canyon Unit 1 G License No. DPD-76 g m

Dear Mr. Engelken:

a NRC Inspection Report 50-275/82-13, dated May 24, 1982 included a Notice of Violation (Severity Level V) , which required a written response by June 23, 1982. PGandE's response to this Notice is enclosed.

Very truly yours, i

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PGandC 's RESPONSE 'IO NOI' ICE OF VIOLATION IN NRC INSPECTION REPORT 50-275/82-13_i

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.s . On May 24, 1982, NRC Region V issued a Severity Level V Notice '

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of Violation (" Notice"), as part of NRC Inspection Report 50-275/82-13, on Diablo Canyon Unit 1. The Notice cited a concern related to s

construction wcrk performed by PGandE's construction contesctor, Pullman Power Products (" Pullman"). The violation was described in the Notice as: x

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 "An audit conducted by Pullman Power   '

Products on February 27, 1981 identified a condition where a required pre-hydrostatic L

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test walkdown had not been performed, and -

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the Piping Release form was signed in the ' required spaces by the Quality Engineer , Leadman instead of the Quality O)ntrol (QC) N Field Engineet. (The NRC denotes this title erroneously in the Notice. The correct -

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title as used by PGands is QC Inspector.) - s - The specified corrective action only s

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addressed future pre-hydrostatic test walkdowns and did not address past tests.

' On April 22, 1982, arc strikes were found on , piping associated with four previously -c performed hydrostatic tests. In addition, , tape residue was found on piping associated - with two of these tests. The

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pre-hydrostatic test walkdowns for each of-these cases had been signed by the Quality .

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Engineer Leadman instead of the QC Field

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Inspector. It is considered that if the corrective action specified as a result of , the Pullman Power Products audit of February , 27, 1981 had addressed past work, the noted arc strikes and tape residue would have been identified and proper corrective action ~ ~ taken." , _ i 0294A

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. The concern originated from an internal audit performed by
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Pullman on February 27, 1981. At that time, Pullman discovered that certain pre-hydrostatic test documentation was signed by the Quality Engineer (QE) Leadman, instead of the Quality Control (QC) Field w Inspector as required by current procedures. W e corrective action taken by Pullman at the time was to instruct both the QE Leadman and the QC Inspectors that all such tests must be conducted and documented by the QC m_ Inspectors. W e !GC, based on indications (tape residues / arc strikes) E found during its April 22, 1982 inspection, determined that Pullman's corrective actions failed to address past work since they did not identifyandcorrecttheseindications.

Subsequent to the imC inspection, Pullman took additional actions to address the past practice regarding pre-hydrostatic tests.

These actions consisted of Pullman confirming with both the QE Leadman and the QC Inspectors involved in the previous tests that the QE Leadman's signatures on the test documentation were based on proper and

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satisfactory completion of the pre-hydrostatic test walkdowns by the responsible QC Inspectors. Additionally, Pullman determined that the previous test walkdowns demonstrated the acceptability of the areas

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included in these walkdowns. PGandC notes, however, that it is not always possible to detect indications 1/64-inch in size or smaller during a routine pre-hydrostatic walkdown. In addition, PGande believes that, due to the type and nature of the indications noted above, the length of ' time since the completion of the test walkdowns, and the amount of construction constantly being perfomed in the areas where the indications were found, these indications could have been caused by events subsequent to the walkdowns. Ilevertheless, both PGandE and Pullman have evaluated the indications found by the imC and have taken

, appropriate steps to have them renoved.

Based on the actions described above, as well as actions previously taken by Pullman, PGandE believes that adequate corrective action has now been taken and full compliance has been achieved. Therefore, no further

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action is necessary on this Ibtice.

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