ML20023D477

LER 83-052/03L-0:on 830411,while Reviewing Vessel Head Installation Work Package,Discovered Head Flange/Vessel Flange Thermocouples Not Physically Reinstalled During Insulation Installation.Cause Under Evaluation

ML20023D477
Person / Time
Site:	Grand Gulf
Issue date:	05/11/1983
From:	Rohrer M MISSISSIPPI POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20023D466	List: ML20023D465 ML20023D477
References
LER-83-052-03L, LER-83-52-3L, NUDOCS 8305200532
Download: ML20023D477 (1)

Text

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NRC eoRM aos u. s. seUCLEAm REGULATORY COMME 354000 T".. LICENSEE EVENT REPORT Attachment to AECM-83/0275 Page 1 of 1 CONTROL SLOCK: l 9

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lh (PLEAM PRINT OR TYM ALL RE2UIRED INFOIMATIOfel O i 7 8 9 l #4 LICENSEE SI d sI CODE d il@l oiS I ol -I ol oLICENSE 14 I d oNuMSER I ol -I d o l@l 426l 11LICENSE 2S 1 l 11 1l@l57 CAT TYPE JO I

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l'"C'I 60Ll@l El01 $ 01 0101 4 11 6E @l DOCKET NUMDER 89 014 l 1l 11 d 3l@LolREPORT EVENT DATE 74 75 d ilDATE il 81 3l@ 80 EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h O 2 lun Anril 11. 1983. while reviewina the vessel head installation work

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l O 3 loackage the 18cc Superintendent discovered that the head flance/ vessel l O 4 fflance thermocouples had not been physically reinstalled durina the 1 ITTiG linsulation installation. Consequently, for approximately a 30 day l O 6 leeriod the emerators were monitorina ambient air temmeratures. The i O 7 laurVe111ance requires verification that these temperatures are areater 1 O u Ithan cr soual to 70 decrees F in mode 4. I 7 89 80 COOE SU8C E COMPONENT CODE Sus ode SU E O 9 7 8 I Cl a l@ LD_J@ LzJ@ l zi z i zi z i zi r l@ W@ L2.J @

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44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h M IThe cause is still under evaluation. The flance thermocouples have beeni i i treinstalled. A follow-up report is expected to be submitted by May 30. I l i 2 11983. This is considered an interim report submittea pursuant to T.S. l l

i 3 l 6.9.1.1.3.b as the surveillance requiremerats of Technical Specification l l i 4 14.4.6.1.4 were not actually met. I 7 8 9 30 STA S  % POWER OTHER STATUS SO R JeSCOVERY DESCRIPTION E LsJ@ loIoIel@l"

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