ML20151A568
| ML20151A568 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/24/1988 |
| From: | Butterfield L COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 4407K, NUDOCS 8804070082 | |
| Download: ML20151A568 (3) | |
Text
i C'/] Chicago libnois 60690 0767 N Commonwealth Edison.
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One FarSt N $onal Plaza Chicago, Cinois j
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Address Reply to: Post Offco BoV6T~
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\\d March 24, 1988 i
Mr. A. Bert Davis Regional Administrator U.S. Naclear Regulatory Corrunission Region III 799 Roosevelt Road Clen Ellyn, IL. 60137
Subject:
Byron Station Units 1 and 2 i
Response to Inspection Reports Nos.
50-454/88-002 and 50-455/88-002
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NRC Docket h'os. 50-454 and 50-455 Reference (a)
'J.L. Forney letter to C. Reed dated February 24, 1988
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Dear Mr. Davis:
This letter is in response to the inspection conducted by Mr. P.G.
Brochman and Ms. N.V. Gilles through January 1 through February 11, 1988 of activities at Byron Station. Referene (a) indicated that certain activities appeared to be in violation of NRC requirements. The i
4 Consnonwealth Edison Company response to the Notice of Violation is provided l
in tha enclosure.
l If you have any further questions on this matter, please direct i
them to this office.
l Very truly ycars,
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L. D. Butterfiel Nuclear Licensing Manager T
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cc NRC Resident Inspector-Byron l
q NRC Document Centrol Desk I
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Enclosure Commonwealth Edison Company Response to Inspection Report 454/88-002 and 455/88-002 j
Violation 1 (454/88-002-02) 1 j
10 CFR 50.49 requires that each licensee establish a program to maintain the environmental qualification of safety related (class 1-E) electrical equipment which mitigates the consequences of an accident.
The Byron Safety Related Component List specifies that level transmitter ILT-0932 is a class 1-E component and requires qualification for a harsh environment. Level transmitter ILT-0932 is a Barton Transmitter, Model 752, and is utilized by control room operators during a safety injection to mitigate a loss of coolant accident.
Equipment Qualification Binder number ESE-4A requires that a Barton Transmitter, Model 752, have its zero and span adjusting screw protectivo covers installed to be environmentally qualified.
l Contrary to the above, on January 28, 1988, the zero and span adjusting screw protective covers for refueling water storage tank level transmitter ILT-0932 were not installed.
Corrective Action Taken and Results Achieved The Instrument Maintenance Department recalibrated ILT-0932 and verified that the EQ requirements were met per BIS 3.3.6-200, Revision 5, and re-installed the zero and span covers.
This was completed on 01-28-88.
Corrective Action to be Taken to Avoid Further Violation i
i Although the procedure implicitly directs the covers to be J
re-installed, the applicable procedures for all EQ related Barton 752 instruments used in a harsh environment (both Unit 1 and Unit 2) will be revised to include a step that references the replacement of the covers that have been removed.
Date k? hen Full Compliance Will be Achieved i
j procedures will be revised by 09-01-88.
This will ensure that the i
revised procedures will be available prior to the next refueling outage.
(AIR 454-225-88-0052) l 5
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