05000318/LER-1981-040-03, /03L-0:on 810923,during Surveillance Testing, MSIV 22 Stroked Shut in Time Exceeding Max Allowed by Tech Spec.C-E Investigating Change of Stroke Time Limits.Update Will Be Issued

/03L-0:on 810923,during Surveillance Testing, MSIV 22 Stroked Shut in Time Exceeding Max Allowed by Tech Spec.C-E Investigating Change of Stroke Time Limits.Update Will Be Issued

ML20011A943
Person / Time
Site:	Calvert Cliffs
Issue date:	10/23/1981
From:	Weir P, Wenderlich R BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20011A940	List: 05000318/LER-1981-040, Forwards LER 81-040/03L-0
References
LER-81-040-03L, LER-81-40-3L, NUDOCS 8111030394
Download: ML20011A943 (1)

LER-1981-040, /03L-0:on 810923,during Surveillance Testing, MSIV 22 Stroked Shut in Time Exceeding Max Allowed by Tech Spec.C-E Investigating Change of Stroke Time Limits.Update Will Be Issued

Event date:
Report date:
3181981040R03 - NRC Website

text

NRC FORM 366 U.S. NUCLEAR REGULATSRY COMMISSION

'(7 77)

LICENSEE EVENT REPORT CONTROL BLOCX: l l

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE Jo 67 CAT 68 CON'T Za"c' l Ll@l 0] 5 l 0l 0 l 0 l 3l 1l 8 l@l 0 l 9 l 2 l 3 l 8 l 1 l@l 1 l 0 l 2 l 3 l 8 l 1 l@

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lO w l During Mode 4 operat_ipn at 2255 while performing surveillance testing, l

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1. 22 Main SteamilsoldtY6n Valve (MSIV) stroked shut in 3.67 sec, l

jo y3; l 0.07 sec over clie m'a$1muni a owed by T.S. 3.7.1.5.

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10 l s l l retested and restored to service at 0045 on 9-24-81.

Similar events

l lO l6 ] l in Docket #50-317; 81-44, 81-24 and 78-37.

In Docket #50-318; 81-07 l

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACllONS h l1101l Combustion Engineering (NSSS supplier) is investigating a change of l

ji jill the upper and lower time limits for MS1V operation. Preliminary work l

indicates a time of approximately 6 secs will be acceptable. Updating l

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NAME OF PREPARER PHONE: