ML19209B433

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Responds to NRC 790822 Ltr Re Violations Noted in IE Insp Repts 50-352/79-05 & 50-353/79-05.Corrective Actions: Procedure Revised for Documentation of Elongation & of Force of Reworked Strands & Subcontractor Procedure Reviewed
ML19209B433
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 09/17/1979
From: Boyer V
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19209B431 List:
References
QUAL-1-2-2, NUDOCS 7910090709
Download: ML19209B433 (2)


Text

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,' PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET PHILADELPHI A. PA.19101 V.S.BOYER vics.passicant Mr. Boyce Grier, Director - 7- '

United States Nuclear Regulatory Commission Office of Inspection and Enforcement, Region I 631 Park Avenue King of Prussia, PA 19406

Subject:

USNRC IE Regi I Letter dated August 22, 1979 RE: Site and .;fice Inspection of May 7-11, 17, 18, and 21, 1979 Inspection Report No. 50-352/79-05 and 50-353/79-05 Limerick Generating Station - Units 1 5 2 File:

QUAL 1-2-2 (352/79-05 and 353/79-05)

Dear Mr. Grier:

In response to the subject letter regarding items identif'ed during the subject inspection of construction activities authori::ed t / NRC License Nos. CPPR-106 and -107, we transmit herewith the following:

Attachment I - Response to Appendix A Should you have any questions concerning these itc.ic, we would be pleased to discuss them with you.

Sine m ly,

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V. S. Boyer JMC/mmk Attachment 1117 0'09 14T6M 7910090 OT

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Attachment I Response to Appendix A Item of Noncompliance Infraction 10CFR 50, Appendix B, Criteria V, statei, in part, that: " Activities affecting quality shall be prescribed by documented instructions, procedures or drawings... and shall be accomplished in accordance with these instructions, procedures or drawings.

The Limerick PSAR, Appendix D, Quality Assurars_e Program, Paragraph D.4.10 states in part, that the subcontractor "...shall have written procedtres governing the identification, sontrol, and disposition of materials, parts, or equipment that co not meet specification require-ments. Repairs snall be in accordance with documented instruc+. ions."

The Supplier Deviation Disposition Request for Reactor Building #1 longitudinal tendon slippages, SDDR number L-12 Revision 3, January

29. 1979, states in part in Procedure (Item 3) for Rework of Slipped Strand, " Stress the strand to the required dead-end anchor force. A higher gage reading may be necessary to unseat and replace wedges.

Record elongation and force...".

Contrary to the above, as of May 9,1979, the elongation and force used to rework each of the slipped strands for stage 1 longitudinal tendons of the north and south fuel pool girders were not documented.

Response to Infraction A review of the existing documentation determined that documenting the elongation and force of the reworked strandt is not essential to the stressing operation and adequate documentation does exist to verify that the strands were satisfactorily reworked. Therefore, the proced-ure has been revised to no longer require the documentation of the elongation and force.

To preclude recurrence of similar type problems, we have reviewed the subcontractor's procedures and have determined that the forms currently provide adequate space for reporting information cequired by the procedures. In addition, the subcontractor's personnel have been re-minded to pay close attention to the documentation recording require-ments of their procedures.

11i7 010 I-1/1

%-h  ! 50-352/79-05 50-353/79-05