ML20040B246
| ML20040B246 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 12/30/1981 |
| From: | Thurlow E Maine Yankee |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20040B241 | List: |
| References | |
| FMY-81-187, NUDOCS 8201250307 | |
| Download: ML20040B246 (2) | |
Text
..
.we '= ~t u t
- _.
EDISON DRIVE (11 AIRE
- UARHEE AlarmCP0l'ERCOMPAR9*
AUGUSTA. MAINE 04336 Jg y '
(207) 623-3521 1 _ c_:raO December 30, 1981 2.C.2.ll FMY-81-187 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Recion I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention:
Mr. Ronald C. Haynes, Director d
Re ferences:
(a) License No. OPR-36 (Docket No. 50-309)
(b) USNRC Letter to MYAPCo dated November 30, 1981 Inspection 50-309/81-26
Subject:
Pesponse to Inspection 50-309/81-26
Dear Sir:
In reply to the two violations identified in the Notice of Violation, Appendix A of Reference (b), the following information is submitted.
Violation 1:
Finding:
1.a - Piping was installed upstream of valve HSI-M-42 rather than upstream of valve HSI-M-40 as called for in EDCR 80-37.
Response: The piping is installed upstream of both HSI-M-42 and HSI-M-40 as called for in the EDCR Design Package System Flow Sketch #80-37-5-1.
The sketch shows the branch line being installed closer to HSI-M-40 than to HSI-M-42 but the flow sketch is not intended to display pipe confiouration.
The detailed drawing FP-10A in the design package showed the intended physical location of the pipe. Stess analysis and installation was performed in accordance with the FP-10A drawing.
Installation sketch No.
El also indicated the correct location of the branch line.
cru "O
The piping was in fact installed correctly and in accordance with the g
appropriate EDCR documents.
Do 28 Findino:
1.b - The piping was installed by drilline the existing piping rather than by use of a standard piping tee as called for in EDCR 80-37.
N g
eco 8
Response
4-@
The piping was installed by drilling the existing piping and installing a Nuclear Safety Class 2, 6000i/ rated, sockolet instead of the com standard tee.
This method of installation was specified in the
- '8 installation instructions provided by the design engineer and reviewed by an independent engineer. This approach was taken to significantly reduce installation time and radiation exposure to personnel installing the system.
M AIN E Y ANKEC ATOMIC POWE R COMPANY US Nuclear Pegulatory Commission December 30, 1981 Attn: Ronald C. Haynes, Director Page Two Finding:
1.c - No Insignificant Change or other design change approval had been documented.
Pesponse:
As previously stated in 1.b the change was documented by the design engineer in his installation instructions and reviewed by an independent engineer.
The change was not, however, documented on the detailed pipe configuration sketches in the design package and therefore did not receive stress re-analysis.
Upon being notified of this discrepancy a stress re-analysis was performed and it was determined that the effects of this deviation did not adversely effect the stress results.
To prevent reoccurrence, the Q. A. Procedures will be revised to require that the detailed pipe confinuration sketches indicate the intended configuration and that all changes to the approved sketches be re-analyzed prior to placing the system in operation.
These Q.A. procedures will be revised by February 28, 1982.
VIOL ATION 2:
Finding:
The Volume Control Tank gas sample was taken without returning the purged gas volume to the waste gas surge drum as per procedure 7.204.1.
^
Maintenance adjustments have been performed on the system to allow the procedure to be carried out effectively.
Chemistry technicians have been instructed in the correct sampling technioue (procedure 7.204.1).
These corrective actions have resulted in full compliance.
We trust this information is satisfactory.
Should you have any further ouestions, please feel free to contact us.
Sincerely yours, MAINE YANKEE ATOMIC POWER COMPANY M
Elwin W. Thurlow President l
CEM/hjp i
~
STATE OF MAINE
)
~
)ss 02 C
COUNTY OF KENNEFEC)
Then personally appeared before me, Elwin W. Thurlow, who, being duly-sworn, did state that he is President of Maine Yankee Atomic Power Company, that he is duly authorized to execute and file the foregoing request in the name and on the behalf of Maine Yankee Atomic Power Company, and that the statements therein are true to the best of his knowledge and belief.
CIRN D:NE E. Com m
^
?ld bWp': *;l+:
,)/ 0,Pf.
g*f no r:m t w w sc a; ucr t
DN
~..r1 R s Notary PublicW L 1"*