View source for PNO-III-86-142, on 861205,licensees Notified NRC That Electrical Splices Did Not Meet Environ Qualification Requirements & Plants Shut Down.Each Unit Has 150 Splices Which Must Be Repaired.Repairs Expected to Take 5 Days

{{Adams
| number = ML20214X157
| issue date = 12/05/1986
| title = PNO-III-86-142:on 861205,licensees Notified NRC That Electrical Splices Did Not Meet Environ Qualification Requirements & Plants Shut Down.Each Unit Has 150 Splices Which Must Be Repaired.Repairs Expected to Take 5 Days
| author name = Harrison J, Muffett J
| author affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION III)
| addressee name = 
| addressee affiliation = 
| docket = 05000000, 05000249, 05000254
| license number = 
| contact person = 
| document report number = PNO-III-86-142, NUDOCS 8612100572
| document type = PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO,, TEXT-INSPECTION &amp; AUDIT &amp; I&amp;E CIRCULARS
| page count = 1
}}
{{#Wiki_filter:PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-86-142           Date December 5, 1986 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without                  L verification or evaluation, and is basically all that is known by the Region III                '
staff on this date.
Facility:    Commonwealth Edison Co.                Licensee Emergency Classification:
Dresden Unit 3                         XX   Notification of an Unusual Event Morris, IL 60450                            Alert Docket No: 50-249                           Site Area Emergency General Emergency Quad Cities Unit 1                          Not Applicable Cordova, IL 61242 Docket No: 50-254

==Subject:==
SHUTDOWN TO REPAIR UNQUALIFIED ELECTRICAL SPLICES On D::cember 5,1986, the licensee notified Region III (Chicago) that it was shutting down Drcsden Unit 3 and Quad Cities Unit 1 because some electrical splices did not meet environmental qualification requirements. The AMP splices--supplied by General Electric Company--were retested December 4-5 as a result of concerns raised by the NRC staff in an carlier environmental qualifications inspection, and the splices failed to withstand the post-accident testing conditions. The licensee declared an Unusual Event under its emergency plan.
The licensee reported that each unit has 150 splices which must be repaired. The repair, which is expected to take 5 days, involves wrapping each splice with tape which meets the environmental qualification requirements.
Dresd:;n 2 and Quad Cities 2 are currently shut down for refueling. The splices in question were previously replaced in Dresden 2; the taping modification will be made on Quad Cities 2 during the current outage.
A special Region III inspection will review the splice problem and the licensee's corrective action. The Office of Nuclear Reactor Regulation has been informed, and the generic implications are being pursued. Region III has notified other similar facilities in Region III to infonn them of the splice problem.
The State of Illinois will be notified.
Region III was notified of the splice problem by the licensee at 3:30 p.m.,
December 4           This informa i     is current as of that time.
(w                . /rJ0. U CONTACT:     . u ett              . arrison FTS 388-763           FTS 388-635 DISTRIBUTION:
H. St.                     EDO         NRR       E/W        Willste      Mail: ADM:DMB Chairman Zech              PA                    IE         NMSS                 DOT:Trans only Comm. Roberts              ELD                   OIA        RES Comm. Asselstine                                 AE0D                    NRC Ops Ctr Comm. Bernthal Comm. Carr                 SP               Regional Offices ACRS SECY                        INP0                 NSAC CA                         RIII Resident Office PDR                        Licensee:                    (Corp. Office - Reactor Lic. Only) 21     72 861205 PNO-III-86-142 PDR                                      Rev. November 1986 op    /f]f}}

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