ML20205T732
| ML20205T732 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 05/21/1986 |
| From: | Whittier G Maine Yankee |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| GDW-86-127, IEB-85-003, IEB-85-3, MN-86-73, NUDOCS 8606160181 | |
| Download: ML20205T732 (4) | |
Text
,
MAME HARHEE ATOMloPOM/ER00MPARSe
,ooug,,Ml,,i,lgQa"a's fiFA May 21, 1986 W
MN-86-73 GdE'882p2'921 O
Region I United States Nuclear Regulatory Commission Office of Inspection and Enforcement 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Dr. Thomas E. Murley, Regional Administrator
References:
(a)
License No. DPR-36 (Docket No. 50-309)
Motor-0perated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings dated November 15, 1985
Subject:
Response to IE Bulletin 85-03 l
Gentlemen:
Reference (b) requested information on the maximum differential pressure expected during the operation of motor-operated valves (MOVs) in high pressure coolant injection / core spray and emergency feedwater systems and plans for establishing and testing the correct switch settings for the MOVs within 180 days of the date of the Bulletin.
Maine Yankee will require an additional two weeks from the date of this I
letter in order to complete our response to Reference (b).
He trust this slight delay will not inconvenience your review.
Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY 8606160181 860521 e
ADOCK 0500 9
gDR G. D. Whittier, Manager Nuclear Engineering and Licensing i
l l
GDH/bjp l
Enclosure cc: Mr. Ashok C. Thadani Mr. Pat Sears Mr. Cornelius F. Holden l
[.Io
MAIRE HARHEE ATOMICPOWERCOMPARUe EI N RIVE AmSTA. MAINE N336 May 21, 1986 W
HN-86-73 Gdf'882py e
Region I United States Nuclear Regulatory Commission Office of Inspection and Enforcement 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Dr. Thomas E. Murley, Regional Administrator
References:
(a) License No. DPR-36 (Docket No. 50-309)
Motor-Operated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings dated November 15, 1985
Subject:
Response to IE Bulletin 85-03 4.
Gentlemen:
Reference (b) requested information on the maximum differential pressure expected during the operation of motor-operated valves (MOVs) in high pressure coolant injection / core spray and emergency feedwater systems and plans for establishing and testing the correct switch settings for the MOVs within 180 days of the date of the Bulletin.
Maine Yankee will require an additional two weeks from the date of this letter in order to complete our response to Reference (b).
We trust this slight delay will not inconvenience your review.
Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY
.h/f AVd G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/bjp Enclosure cc: Mr. Ashok C. Thadant Mr. Pat Sears Mr. Cornelius F. Holden
~
MAIRE M0ml0POWERComPARSe EDISON DRNE AUGUSTA, MAWE 04336 g
May 21, 1986 HN-86-73 Gdf'8g_2fpp21 O
Region I United States Nuclear Regulatory Commission Office of Inspection and Enforcement 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention:
Dr. Thomas E. Murley, Regional Administrator
References:
(a) License No. DPR-36 (Docket No. 50-309)
Motor-0perated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings dated November 15, 1985
Subject:
Response to IE Bulletin 85-03 Gentlemen:
Reference (b) requested information on the maximum differential pressure expected during the operation of motor-operated valves (HOVs) in high pressure coolant injection / core spray and emergency feedwater systems and plans for establishing and testing the correct switch settings for the MOVs within 180 days of the date of the Bulletin.
Maine Yankee will require an additional two weeks from the date of this letter in order to complete our response to Reference (b).
He trust this slight delay will not inconvenience your review.
Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY
.hff /WS G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/bjp Enclosure cc: Mr. Ashok C. Thadani Mr. Pat Sears Mr. Cornelius F. Holden
~.
MAIRE HARHEE ATOMICPOWERCOMPARUe EDISON DRIVE AUGUSTA, NUMNE C4336 May 21, 1986 W
MN-86-73 Gdk3'ddi2ppp21 GD Region I United States Nuclear Regulatory Commission Office of Inspection and Enforcement 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Dr. Thomas E. Murley, Regional Administrator
References:
(a) License No. DPR-36 (Docket No. 50-309)
Motor-0perated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings dated November 15, 1985
Subject:
Response to IE Bulletin 85-03 Gentlemen:
Reference (b) requested information on the maximum differential pressure expected during the operation of motor-operated valves (MOVs) in high pressure coolant injection / core spray and emergency feedwater systems and plans for establishing and testing the correct switch settings for the MOVs within 180 days of the date of the Bulletin.
Maine Yankee will require an additional two weeks from the date of this letter in order to complete our response to Reference (b).
He trust this slight delay will not inconvenience your review.
i Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY hjf /WS G. D. Whittier, Manager Nuclear Engineering and Licensing l
GDW/bjp Enclosure i
cc: Mr. Ashok C. Thadani 1 Mr. Pat Sears Mr. Cornelius F. Holden
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