PNO-III-86-088, on 860902,normal Plant Shutdown Began for Repair of Malfunctioning torus-to-reactor Bldg Vacuum Breaker Isolation Valve.Repair Effort Expected to Take More than 48 H.Addl Maint Will Be Conducted During Shutdown

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PNO-III-86-088:on 860902,normal Plant Shutdown Began for Repair of Malfunctioning torus-to-reactor Bldg Vacuum Breaker Isolation Valve.Repair Effort Expected to Take More than 48 H.Addl Maint Will Be Conducted During Shutdown
ML20214L488
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 09/03/1986
From: Guldemond W, Wright G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-86-088, PNO-III-86-88, NUDOCS 8609100191
Download: ML20214L488 (1)


PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-86-88 Date S;ptember 2, 1986 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The infonnation is as initially received without verification or evaluation, and is basically all that is known by the Region III Detd staff on this date.

Facility: Detroit Edison Company Licensee Emergency Classification:

Fermi 2 Nuclear Power Plant Notification of an Unusual Event Newport, MI 48166 Alert Site Area Emergency Docket No. 50-341 General Emergency XX Not Applicable

Subject:

SHUTDOWN TO REPAIR VACUUM BREAKER ISOLATION VALVE The licensee began a normal plant shutdown on 9/2/86 to repair a malfunctioning torus-to-reactor building vacuum breaker isolation valve. All control rods were fully inserted as of 9:19 (EDT) en 9/3/86 and the unit is being taken to a cold shutdown condition. The repair effort is expected to take more than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

While in cold shutdown, the licensee will conduct other maintenance activities, including checking wiring on a number of motor operated valves.

The NRC's special Fermi start-up team is onsite and will monitor the licensee's course of actign.

The State of Michigan will be notified.

Regicn III (Chicago) was first informed of the planned shutdown at 10:00 a.m. (CDT),

September 2, 1986. This information is current as of 10:00 a.m. (CDT), September 3,1986.

< D CONTACT: G. C. Wright WGuld ond FTS 388-5695 FTS 3 -5574 DISTRIBUTION:

H. St. ED0 NRR E/W Willste Mail: ADM:DMB Chairman Zech PA IE NMSS D0T:Trans only Conan. Roberts ELD OIA RES Comm. Asselstine , AEOD Comm. Bernthal Comm. Carr SP 4:03 Regional Offices ACRS SECY INP0M'0% NSACL4: 0f5 CA RIII Resident Office PDR Licensce: 4: B7 (Corp. Office - Reactor Lic. Only)

Region III Rev. November 1985 8609100191 860902 N$-Ik 86-088 PDR J[3fg)ff i