ML17037B593
| ML17037B593 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 04/13/1978 |
| From: | Dise D Niagara Mohawk Power Corp |
| To: | Lear G Office of Nuclear Reactor Regulation |
| References | |
| Download: ML17037B593 (4) | |
Text
O REGULATORY INFORMATION DISTRIBUTION SYSTEM <RIDS)
DISTRIBUTION FOR INCOMING MATERIAL 50-220 REC:
LEAR G
NRC ORG:
DISE D P NIAGARA MOHAWK PWR DOCDATE: 04/13/78 DATE RCVD: 04/14/78 DOCTYPE:
LETTER NOTARIZED:
NQ COPIES RECEIVED
SUBJECT:
LTR 1
ENCL 0 ADVISING INSTALLATION OF SUBJECT FACILITY"S HIGH REACTOR VESSEL WATER LEVEL TRIP ON THE SHAFT-DRIVEN REACTOR FEEDWATER PUMP WILL BE COMPLETED DURING THE SPRING 1979 REFUELING OUTAGE.
PLANT NAME: NINE MILE PT UNIT 1
REVIEWER INITIAL:
DISTRIBUTOR INITIAL/+
DISTRIBUTION QF THIS MATERIAL IS AS FOLLOWS GENERAL QISTRIBUTION FOR AFTER ISSUANCE OF OPERATING LICENSE.
(DISTRIBUTION CODE A001)
FOR ACTION:
INTERNAL:
EXTERNAL:
=BR CHM~EAR~
ONLY(7>
G FILE++LTR ONLY(i) 41 TR ONLY<2)
HANAUER~~~
EISENHUT4~4LTR ONLY< 1)
BAER+~~LTR ONLY(l >
EEB~~~~LTR ONLY( 1 )
J.
MCGOUGH4~+LTR ONLY(1 )
LPDR S
- OSWEGO, NY44~LTR ONLY< 1)
TIC4~~~LTR ONLY ( 1 )
NSIC~4LTR ONLY< 1)
ACRS CAT B>+LTR ONLY(lh)
NRC PDR4 +LTR ONLY( i )
QELD++LTR ONLY<i)
CHECK+4LTR ONLY(i>
SHAQ+4LTR ONLY( 1)
BUTLER++LTR ONLY(1)
J COLLINS++LTR ONLY< 1)
DISTRIBUTI'ON:
LTR 40 ENCL 0 SIZE:
1P CONTROL NBR:
781040211
0
NIAGARAMOHAWKPOWER CORPORATION MIAGARA ~A MOHAWK
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I A~'gt$gf II sYRAcusE. N.Y. 12222 rrCpQI ItIIIQIIll April 13,R4'8 Director of Nuclear Reactor Regulation Attn:
Mr. George Lear, Chief Operating Reactors Branch g3 U.
S. Nuclear Regulatory Commission Washington, D.
C.
20555 Re:
Nine Mile Point Unit 1 Docket No. 50-220 DPR-63 EA Al
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MC CD Gentlemen:
Our letter of March 2, 1978 indicated that we were evaluating the feasibility of installing a high reactor vessel water level trip on the shaft-driven reactor feed-water pump.
Results of this evaluation indicate that this trip is feasible and can be accomplished by automatically disengaging the clutch between the pump and the turbine.
Installation of this trip will be completed during the Spring 1979 refueling outage.
Very truly yours, NIAGARA MOHAWK POWER CORPORATION P.Q
'onald P. Disc Vice President-Engineering MGM/szd o
7810R 02i i
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