ML19209A458
| ML19209A458 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 08/31/1979 |
| From: | Hines E DETROIT EDISON CO. |
| To: | Fiorelli G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19209A455 | List: |
| References | |
| EF2-46-924, NUDOCS 7910040082 | |
| Download: ML19209A458 (3) | |
Text
a
!f". '.!" UOY.,,..
co.
- uu
..r.,,o.....
I i i (,4 i?
August 31, 1979 EF2-46,924 Mr. C. Fiore111, Chief Reactor Construction and Engineering Support Branch U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137
Dear Mr. Fiore111:
Noncompliance at Enrico Fermi Unit 2 Construction Site This letter responds to the infraction contained in your IE Report No.
50-341/79-04.
This inspection of Enrico Fermi Unit 2 Site Construction activities was performed by Messrs. II. S.
Phillips, H. M. Wescott, F. C. Hawkins, and R. V. Marsh on February 15 through March 2, 1979.
Only the cited infraction mentioned in your report is discussed in this reply as required by Section 2.201 of the NRC's " Rules of Practice",
Part 2, Title 10, Code of Federal } gulations.
The unresolved items have been acted on.
We will be pr-ared to report in detail on our progress and corrective action on
.ese matters to your inspectors on their next visit.
Wr.
st this letter satisfactorily answers the concerns raised in your report. We shall be glad to discuss any further points that you may have.
Very truly yours, m bL xQ, For Edward Hines HAW:mb 1009
'i2 p n 10 69 7910040
~-
.o 8
THE DETROIT EDISON COMPANY QllALITY ASSURANCE DEPARIMENT ENRICO FERMI 2 PROJECT Response to NRC Feport No. 50-341/79-04 Docket No. 50-341 License No. CPPR-87 Inspection at:
Fermi 2 Site, Monroe, Michigan Inspection Conducted:
February 15 through March 2, 1979
[x.vg
(
Prepared by:
H. A. Walker Site Project Q.A. Engineer Detroit Edison Company Approvedby:,k-R. W. Barr' Project Q. A. Director Detroit Edison Company 1089 ?i3
e Response to NRC Report No. 50-341/79-04 Statement of Infraction 79-04-04 Appendix A Allegation #16 (Pages 22 - 24)
Infraction:
Contrary to 10CFR50, Appendix B, Criterion XVI, measures were not established to assure that conditions adverse to quality are promptly identified and corrected. A void area, which had not been previously identified, was discovered in the sacrificial shield wall grout.
A DDR (#1187) was closed prior to corrective action being taken to complete the grouting repair of sacrificial shield wall placement #2.
Corrective Action Taken and Results Achieved On February 28, 1979, Deviation Disposition Request (DDR) No. (C)2610 was generated by Daniel Q.C. department to identify the subject voids.
Disposition of DDR No.
(C)2610 was to fill the voids and to visually inspect all outside weepholes in the Sacrificial Shield.
This inspection was completed and DDR No. (C)3061 was generated on June 26, 1979, to identify additional voids.
The additional voids were at approxi-mate azimuth 2420 to 320, elevation 609 feet to 613 feet. Within this general area, six (6) separate void areas were found.
DDR No. (C)3061 was subsequently rewritten as a new DDR - No. (C)3245.
This was done to clarify the initial disposition.
Corrective Action to be Taken to Avoid Further Noncompliance During the placement of the grout, on several occasions mechanical failure of the grout pumps caused lengthy delays in the placement process while backup pumps were hooked up and pipelines were cleaned of hardened grout.
In several pours, the individual access holes to the compartments within the sac-shield wall became blocked with grout which hardened during installation of the backup pump.
This problem and an inadequate monitoring of every weephole were che cause of the problems outlined in Appendix A, paragraph one (li, of NRC Inspectian Report 50-341/79-04 Corrective action to avoid further noncompliance for pump failure is not applicable as all pumping of groot from mechanical pumps has been completed.
Prior to repair grouting, craft and Q.C. personnel involved in this activity will attend a training session covering the repair method including monitoring of grout placement.
In order to prevent future closing of DDR's prior to the disposition being complete, all site contractors with Q.C. inspection responsibility have been directed to notify their inspection personnel of this problem and emphasize the necessity for complete verification of completed dispositions before closing out DDR's.
Date When Full Compliance Will Be Achieved Full compliance will be achieved by September 14, 1979.
1039 214