ML20133G322
| ML20133G322 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 12/30/1996 |
| From: | Hebert J Maine Yankee |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20133G325 | List: |
| References | |
| JRH-96-298, MN-96-191, NUDOCS 9701150301 | |
| Download: ML20133G322 (2) | |
Text
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MaineYankee AELI ABLE ELECTRICITY SINCE 1972 329 BATH ROAD
- BRUNSWICK, MAINE 04011 * (207) 798-4100 December 30,1996 MN-96-191 JRH-96-298 UNITED STATES NUCLEAR REGULATORY COMMISSION Region I 475 Allendale Road King of Prussia, PA 19406-1415 Attention: Mr. Hubert J. Miller, Regional Administrator
References:
(a)
License No. DPR-36 (Docket No. 50-309)
(b)
Maine Yankee Letter to USNRC dated January 18,1996 (MN-96-06) - Revision 2 of the Cycle 15 Core Performance Analysis Report and 10 CFR 50.46 Report (c)
Maine Yankee Letter to USNRC dated April 4,1996 (MN-96-42) Maine Yankee Cycle 15 Startup Test Report (d)
Maine Yankee Letter to USNRC dated April 26,1996 (MN-96-59) Maine Yankee Cycle 15 Startup Test Repon - Supplement 1 (e)
Maine Yankee Letter to USNRC dated June 20,1996 (MN-96-81) Maine Yankee Cycle 15 Startup Test Report - Supplement 2 (f)
Maine Yankee Letter to USNRC dated September 5,1996 (MN-96-131) Maine Yankee Cycle 15 Startup Test Report - Supplement 3 (g)
Maine Yankee Letter to USNRC dated October 10,1996 (MN-96-153) Maine Yankee Cycle 15 Startup Test Report - Supplement 4
Subject:
Maine Yankee Cycle 15 Startup Test Report - Supplement 5 Gentlemen:
In accordance with the provisions of the Maine Yankee Technical Specification 5.9.1.1, please find enclosed Supplement 5 to the Startup Test Report (STR) for operation of the Maine Yankee Cycle 15.
Supplement 5 to the Cycle 15 Startup Test Report (STR) provides an update of the power distribution comparisons for Cycle 15 operation at 2440 MWt. The startup test program is summarized in Section 7 of the Core Performance Analysis Report (CPAR), Reference (b). The Cycle 15 STR, Reference (c),
was submitted following the low power testing and power escalation to 2440 MWt. The Cycle 15 STR concluded that the core characteristics were demonstrated to conform to those assumed in the safety analysis.
Maine Yankee initiated system heatup for Cycle 15 in December 1995. The startup testing commenced on January 12,1996. The current maximum allowable power level of 2440 MWt, corresponding to approximately 90% of the plant Rated Thermal Power (RTP) level of 2700 MWt, was achieved on January 22,1996.
Supplements 1 through 4 to the Cycle 15 STR, References (d) - (g), provided additional power distribution comparisons at 90% RTP near 2000,4000,5000 and 6000 mwd /Mt in
- j cycle exposure. Supplement 5 to the Cycle 15 STR provides an additional power distribution comparison y g g0% RTP near 8000 mwd /Mt in cycle exposure, from data obtained on December 5,1996.
9701150301 961230 t
I PDR ADOCK 05000309 p
..,-n..-_~-_.
b UNITED STATES NUCLEAR REGULATORY COMMISSION MN-96-191 Attention: Mr. Hubert J. Miller Page Two i
i The startup test program will be completed when a power distribution measurement at appmximately full RTP is obtained, as required by the startup test program power escalation test requirements in Section 7.2 of the CPAR, Reference (b). This power distribution will be submitted within 90 days of the completion of the startup test program,'as required by Technical Specification 5.9.1.2. Until this time, power distribution measurements will be submitted at least every three months to fulfill the requirement for 4
supplementary reports, as indicated in Technical Specification 5.9.1.2. The data in this supplement i
I (Supplement 5) was obtained on December 5,1996. The next supplement (Supplement 6) will be submitted prior to three months from this date, or March 5,1997.
We trust that this information is satisfactory. Please contact us should you have questions.
Very truly yours,
\\
M l
James R. Hebert, Manager
]
Licensing and Engineering Support Department -
HFJ 1
Enclosure c:
Document Control Desk Mr. J. T. Yerokun Mr. D. H. Dorman
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Mr. Patrick J. Dostie Mr. Uldis Vanags