PNO-III-87-056, on 870413,unit Manually Scrammed Upon Discovery of Steam Leak from Turbine Bldg Condenser Bay Drain Line.Caused by Weld Failure.Cause of Failure Under Investigation

PNO-III-87-056:on 870413,unit Manually Scrammed Upon Discovery of Steam Leak from Turbine Bldg Condenser Bay Drain Line.Caused by Weld Failure.Cause of Failure Under Investigation

ML20206Q675
Person / Time
Site:	Perry
Issue date:	04/14/1987
From:	Knop R, Warnick R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-87-056, PNO-III-87-56, NUDOCS 8704220017
Download: ML20206Q675 (1)

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PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-87-56 Date April 14,1987 beO This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region III Sp staff on this date.

Facility: Cleveland Electric Illuminating Licensee Emergency Classification:

Company Notification of an Unusual Event Perry Alert Perry, OH 44081 Site Area Emergency General Emergency X Not Applicable

Subject:

STEAM LEAK FROM STEAM DRAIN LINE At 6:17 p.m. (EDT) on April 13, 1987, reactor operators manually scrammed the unit from 3 percent power because of a steam leak from a drain line in the condenser bay in the turbine building. The leak was from a 3-inch drain line which was severed from a 24-inch drain line manifold when a weld failed. The cause of the weld failure is being investigated by the licensee. (There have been previous instances of weld failures in attachments to the drain line manifold.) All systems functioned properly during the scram.

There were no injuries. The turbine building was evacuated as a precaution. Air samples show:d low levels of airborne radioactivity (principally short-lived isotopes). There was n p:rsonnel contamination.

The resident inspectors are monitoring the licensee's evaluation of the pipe failure. Repair activities, which may involve design modifications, are expected to take about a week.

Th2 State of Ohio will be notified.

The licensee notified the Headquarters Duty Officer of this event at 8:35 p.m. on April 13, 1987. This information is current as of 9 a.m., April 14, 1987.

RFW CONTACT: R. Knop R. Warnick FTS 388-5547 FTS 388-5575 DISTRIBUTION:

H. St. EDO NRR E/W Willste Mail: ADM:DMB Chairman Zech PA IE NMSS D0T:Trans only Com. Roberts ELD OIA RES Comm. Asselstine AE0D NRC Ops Ctr /d:/8 Comm. Bernthal Comm. Carr SP /,2./o Regional Offices

' ACRS SECY INP0 /);/Q NSAC M .* h CA RIII Resid'ent Office PDR SO]l(6 Licensee: /J:/5 (Corp. Office - Reactor Lic. Only)

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8704220017 870414 Region III O PDR ILE Rev. November 1986 _ -

PNO-III-87-OS6 PDR u