05000416/LER-1982-138, Interim LER 82-138/99X-0:on 821112,during Shutdown,Several Duct Covers Could Not Be Installed Due to Cables Extending Through Ducts.Caused by Faulty Design Document.Engineering Evaluation Underway

Interim LER 82-138/99X-0:on 821112,during Shutdown,Several Duct Covers Could Not Be Installed Due to Cables Extending Through Ducts.Caused by Faulty Design Document.Engineering Evaluation Underway

ML20079J271
Person / Time
Site:	Grand Gulf
Issue date:	12/16/1982
From:	Ambrosino R MISSISSIPPI POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20079J253	List: 05000416/LER-1982-138, Interim LER 82-138/99X-0:on 821112,during Shutdown,Several Duct Covers Could Not Be Installed Due to Cables Extending Through Ducts.Caused by Faulty Design Document.Engineering Evaluation Underway
References
LER-82-138-99X, NUDOCS 8212280154
Download: ML20079J271 (1)

LER-2082-138, Interim LER 82-138/99X-0:on 821112,during Shutdown,Several Duct Covers Could Not Be Installed Due to Cables Extending Through Ducts.Caused by Faulty Design Document.Engineering Evaluation Underway

Event date:
Report date:
4162082138R00 - NRC Website

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NRC FC RM 366 > U. S. NUCLE AR REGULATtRY COMMISSION

'. . LICENSEE EVENT REPORT Attachm:nt to AECM-82/611

- Page 1 of 1 CONTROL BLOCK: l 1

l l l l l lh 6

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l0 l1l 7 8 9 lM l LICENSEE S lG CODE lG lS l1 l@l0 l0 l- l0uCENSE 14 15 l0 l0 NUMBER l0 l0 l- l0 l0 l@l4 25 26 l1LICENSE l1 l1TYPE l1JOl@l$ 7 CAl T 68l@

CON'T lOltl 7 8 3o[n$lLl@l0l 60 61 5l DOCKET Ol Ol NUMBER 0l 4l ll 6 h l 11EVENT 68 69 l1 DATEl2 l8 l2 hl1 12REPORT 74 75 l1 l6 lR I?80 Ih DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 lDuring shutdown, while performing approved maintenance work on the control room floor l l c l a l l grid seals and duct covers, it was not possible to install several duct covers because l

!O l4 l lof cables extending through the ducts. Duct covers involved are identified in l l O 151 l Material Nonconformance Report (MNCR)-00648-82. An LCO was entered in accordance withl 10 is l lT.S.3.7.7. This had no effect on the health and safety of the public and did not l l 0 l 7 l l Constitute a threat to plant safety. This is submitted as an interim Special Report l I O la l l pursuant to T.S.6.9.2. A final report will be submitted by February 14, 1982. l 7 8 9 80 C DE CODE SUSC E COMPONENT CODE SU Code SU E 10191 7 8 lZ lZ lh dh lC l@ l Xl Xl Xl Xl Xl Xl@ y@ W @

9 10 11 12 13 18 19 20

_ SEQUENTIAL OCCURRENCE REPORT REVISION LER/RO EVENT YE AR REPORT NO. CODE TYPE NO.

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33 34  % 31 40 41 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h IilOllAn hourly firewatch was established in accordance with T.S.3.7.7. Cables were l ITTT1 linstalled during construction phase when all covers were removed. Consideration of I lil7l l duct covers was not given by the applicable design document which installed the l lil3l l cables. An engineering evaluation is underway to determine if fire barriers shOuld l li l4 l lbe installed or dust covers modified. This is an interim report. l 7 8 9 80 ST S  % POWER OTHER STATUS DIS O RY Di'CoVERY DESCRIPTION I1 15l $ h l0l0l0l@l NA l lC l@l Special Inspection l A TIVITY CO TENT RELEASED OF RELEASE AVOUNT OF ACTIVITY LOCATION OF RELEASE Q W @ [Zj@l 7 8 9 10 11 NA 44 l l 45 NA l 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION l1 l 7 l l 0 l 0 l 0 l@l Z l@l NA l PERSONNEL INJUF tES NUVBER DESCRIPTION 7

i a 8 9 l0l0l0l@l 11 12 NA 80 l

LOSS TYPE OF DESCRIPTION OR DAMAGE To FACILITY v Q

i 9 lZl@l NA PREPARER: J. M. Floyd l Pueu$TY I 8212280154 821216 l NRC USE ONLY DESCRIPTION hl PDR ADOCK 05000416 i ,

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NAME OF PREPARER Original siened by R.A . Ambrosino PHONE: