ML20148D168

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Supplemental Deficiency Rept CP-86-80 Re Torque Values for Jc White Tubing Restraints.Details of Cause & Required Corrective Action for Subj Deficiency Provided in Correspondence Associated W/Sdar CP-88-21
ML20148D168
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 03/17/1988
From: Counsil W
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CP-86-80, TXX-88304, NUDOCS 8803230329
Download: ML20148D168 (1)


Text

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., Log # TXX-88304

- .~ File # 10110 r C 903.10 Ref. # 10CFR50.55(e) 7UELECTRIC March 17, 1988 MiHiam G, coumil Enewton he tresdent U. S. Nuclear Regulatory Commission Attn: Documed. Control Desk Washington, D.C. 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DCCKET NOS. 50-445 AND 50-446 TORQUE VALUES FOR J. C. WHITE TUBING RESTRAINTS SDAR: CP-86-80 (SUPPLEMENTAL REPORT)

REF: SDAR CP-88-21, "Instrument Tubing Clamps" Gentlemen:

On December 5, 1986, we submitted a Final Report (TXX-6140) on a deficiency involving a lack of detail in project specifications and installation procedures regcrding manufacturers recommendations for torquing of J. C. White tube clamps. As a result of evaluations by our architect / engineer in 1986 and James C. White Co., we concluded this issue did not meet the criteria for reportabilityunder10CFR50.5S(e). As a result of additional review, we have determined this conclusion was reached in error, and we are submitting this letter to provide a revised report.

During tubing support requalification efforts conducted in 1987 by our present architect / engineer, this deficiency resurfaced as an issue. Our reevaluation of this deficiency (docketed SDAR CP-88-21) concluded the deficiencies associated with torquing of these instrument clamps were reportable as noted in our letter (TXX-88140, dated January 29,1988).

Specific details of the cause and required corrective action for this deficiency is )rovided in our correspondence associated with SDAR CP-88-21 "Instrument Tu)ing Clamps". Ali further correspondence related to this issue will be associated with SDAR CP-88-21.

Very truly yours, W

W. G. Counsil DAR/grr c-Mr. R. D. Martin, Region IV Resident inspectors, CPSES (3) b Y

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) krth Ouw Street LB81 Mu. Texas U.'01 8803230329 680317 5 PDR ADOCK 0500 s _ _ .