ML18019A248

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Responds to NRC 850404 Ltr Re Violations Noted in Insp Rept 50-400/85-11.Corrective Actions:Engineering Evaluation Underway to Establish Beam Reinforcing Steel Tolerances & Determine Acceptability of Beam Steel in Previous Beams
ML18019A248
Person / Time
Site: Harris Duke Energy icon.png
Issue date: 05/03/1985
From: PARSONS R M
CAROLINA POWER & LIGHT CO.
To: GRACE J N
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-355 NUDOCS 8506210488
Download: ML18019A248 (6)


See also: IR 05000400/1985011

Text

Carolina Power 8 Light Company P.O.Box 101 AI'7 po.8,$g New Hill, North Carolina 27562 May 3, 1985 Dr.3.Nelson Grace United States Nuclear Regulatory

Commission

Region II 101 Marietta Street, Northwest (Suite 2900)Atlanta, Georgia 30323 NRC-355 Dear Dr.Grace: In reference to your letter of April 0, 1985, referring to RII: 3RH 50-000/85-11-01, the attached is Carolina Power 2 Light Company's reply to the violation identified

in Enclosure l.It is considered

that the corrective

action taken/planned

is satisfactory

for resolution

of the item.Thank you for your consideration

in this matter.Yours very truly, R.M.Parsons Project General Manager Completion

Assurance Shearon Harris Nuclear Power Plant RMP:sae Attachment

cc: Messrs.G.Maxwell/R.

Prevatte (NRC-SHNPP)

Mr.B.C.Buckley (NRC)85062i0488

850503 PDR ADOCK 05000400 6 PDR X EX-se7/1-OS5

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Attachment

to CPRL Letter of Response to NRC Report RH: 3RH 50-000/85-11-01

Re rted Violation:

10 CFR 50, Appendix B, Criterion V, as implemented

by Carolina Power and Light FSAR, Section 1.8.5.5., requires, 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.Drawing numbers CAR-2167-G-2000

and CAR-2167-C-056

specify the location for reinforcing

steel in Beam 55-L-KZ in the fuel handling building (pour number 1FHSL286-032)

and Beam 38 in slab placement IRASL 216-009 in the reactor auxiliary building.Contrary to the location requirements

specified on these drawings, the top reinforcing

steel in Beam 55-L-KZ in the fuel handling building (pour number 1FHSL286-032)

and the bottom reinforcing

steel in Beam 38 in pour number IRASL 216-009 in the reactor auxiliary building are one-half to one inch beyond specified tolerances.

This is a Severity Level IV Violation (Supplement

II).Denial or Admission and Reason for the Violation:

The violation is correct as stated.Beam 55-L-KZ: The cause of the noted condition was due to lack of a placing tolerance specifically

applicable

to beam reinforcing

steel which led inspectors

to mistakenly

apply'ebar center to center spacing or rebar concrete cover tolerances

to beam steel instead.The maximum tolerance which was used by the inspectors

was+2".Beam 38: The reason for mislocation

of the reinforcing

steel in Beam 38 is indeterminate, but was possibly caused by shifting of the rebar to clear the embed studs.The concrete void indicated by"honeycombing" visible at the surface adjacent to the embed plate was apparently

caused by aggregate being trapped on top of the bottom mat of reinforcing

steel.Post placement inspection

had not yet been performed in this area.These post placement inspections

are underway in other areas throughout

the plant, not already inspected, to detect this type of defect.Corrective

Ste s Taken and Results Achieved: An engineering

evaluation

is underway to establish beam reinforcing

steel tolerances

and to determine the acceptability

of beam steel in previously

constructed

beams based on the+2" maximum tolerance used by inspectors.

Beam 38: Permanent)Vaiver, P)V-C-5825

Rev.1 was approved to accept the condition of the mislocated

reinforcing

steel of the subject beam"as-is".XEX-se7/3-OS

5

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Corrective

Ste s Taken to Avoid Further Noncom liance: Beam 55-L-KZ: Once the engineering

evaluation

has been completed and beam reinforcing

steel tolerances

are established, the criteria will be incorporated

into the appropriate

work and inspection

procedures.

Beam 38: Additional

rebar inspection

steps have been implemented

since this beam was constructed.

No additional

corrective

steps are considered

necessary.

Date When Full Com liance Will Be Achieved: It is currently projected that full compliance

will be achieved by May 31, l985.XE X-se7/0-OS5

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