PNO-II-88-038, on 880603,outage Exceeded 48 H to Repair Leaking Tubes on Condenser B.Reactor Subsequently Tripped from Unrelated Switch Problem During Surveillance Test.Eddy Current Test Determined 30 Tubes Would Not Pass Probe

PNO-II-88-038:on 880603,outage Exceeded 48 H to Repair Leaking Tubes on Condenser B.Reactor Subsequently Tripped from Unrelated Switch Problem During Surveillance Test.Eddy Current Test Determined 30 Tubes Would Not Pass Probe

ML20155H172
Person / Time
Site:	Summer
Issue date:	06/03/1988
From:	Dance H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-II-88-038, PNO-II-88-38, NUDOCS 8806200211
Download: ML20155H172 (1)

\

June 3, 1988 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PN0-II-88-38 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verifi-cation or evaluation, and is basically all that is known by the Region II staff on this

-date.

FACILITY: South Carolina Electric & Gas Co. Licensee Emergency Classification:

Summer Notification of Unusual Event Docket No. 50-395 Alert Jenkinsville, South Carolina Site Area Emergency General Emergency X Not Applicable

SUBJECT:

OUTAGE EXCEEDING 48 HOURS The licensee has informed Region II that the Unit will be shut down for more than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> to inspect and repair main condenser tube problems.

The plant had reduced power to 38 percent on June 1 to repair leaking tubes on the "B" condenser. The reactor subsequently tripped from an unrelated switch problem during a surveillance test. Eddy current testing of the "B" low pressure condenser determined that about 30 tubes would not pass the eddy current probe. Further inspection determined that insulation, installed after startup to improve efficiency on the low pressure heaters and associated piping, internal to the condenser, had come loose and damaged the tubes.

Evaluation and eddy current testing is continuing. The plant is expected to remain shut down for at least another two days to complete repairs.

The Mate of South Carolina has been informed.

This PN is being issued for information purposes only.

This information is current as of 10:00 a.m. (EDT) on June 3.

CONTACT: H. Dance - 242-5533 DISTRIBUTION One White M' land Nat'l Flint North Bank Bldg Regions MAIL T0: DCS (Original IE 34)

Chairman Zech ARM Region I 2.43 D0T (Transportation Only)

Comm. Roberts 01A - Reg 4on-H- ,

Comm. Carr AE0D Region III2 3 FAX T0: INP0 Comm. Rogers Region IV at37 NSAC SECY Region.V 2.'. 4 0 RRI OGC Nicholson Lane NRC OC OCA RES LICENSEE (ReactorLicensee)

GPA/SLITP/PA NRC HQ OPERATIONS CENTER NRR H Street ACRS  ! lgI ,__

h20 kh NMSS PDR gff . - hMO d 5520: 6/3/88 9 10:30 a.m. TO REGIONS AND HQ

• • • • • • • • • • • • • • • • • • • • +++++++++++*********************************************************** 0 \

8806200211 880603 PDR ILE p d, PNO-II-88-039 DCD