ML20004B417
| ML20004B417 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 05/21/1981 |
| From: | Coggin C GEORGIA POWER CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20004B416 | List: |
| References | |
| LER-81-037-03L-01, LER-81-37-3L-1, NUDOCS 8105280209 | |
| Download: ML20004B417 (2) | |
Text
{{#Wiki_filter:- . (1 19) LICENSEE EVENT ITEl' ORT 6HTHolOLoCK: l l l l 1 lh (PLEASE PRINT OR TYPE ALL RLoulRLD INroHMAlloN) IO lij in I A lEjl lH l1 l@l 0101 -l Ol LICLN',L Ol OlNUMULH Ol Ol -l 010l@l4 23 26 l1 LICLNSL l1 111\FL 11J0j@l l l@ b i L A 1 1,3 U 3 LICEN',L L CODL 14 lb Co4*T o 1 '$0$ s [L j @ l0 15 l01 0 10 13 12(411 tal@[01412 iVE NT DATE 11 18 11 l@l0l512l1l811l@ 74 75 31E f'OH T D AT E tio i 8 00 _ te l DOLKET NUVULH EVENT DESCitlPiloN AND PRODABLE CONStoUENCES h O a L0n 4-21-81, wi th Uni t 1 shutdown for a ref ueling/ torus modi fication out- l 10131 gqe it was determined that a charcoal sample taken from control room l 0 . Ifil te r train Z41-D004B when tested per HNP-1-397S, " Testing of CR and I o s ISBGT Filter by Vendor", had not met the 90% methyl iodide removal as i 101c 1 [r_e_q u i re d by HNP-1 Tech Specs 3.1.2.A.2 and HNP-2 Tech Specs 4.7.2.C.2 I This is a nonrepetitive event for this syste_m. I rTIT] [( 77. 9 % a c t u al removal). I O la l IThere were no effects upon public heal th and safety as a result of this event. 60I 7 8 9
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30 l-l 31 L o_] 32 _ 21 22 23 24 26 27 28 29 KEN A TIO ON PL T ; HOUnS S Bf ITT F ? b 3. SUPFLtE 1 MAP FA T n E F1 (A_j@l_lj@ 33 34 l3571@ [Z_j@ 30 l0 la l 01 0 l 31 40 l41 Yl@ [_[[j@ 42 lAl@ [[ 10 l3101@ 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O IThe failure of 'the control room filter train 1241-D004B was due to the I 11111Icharcoal's inability to remove 90% of methyl iodide from a laboratory I li 121 lanalysis of representative sample. The f aulty charcoal was removed 1 lilal land replaced by new charcoal of which a sample was sent offsite for [ ' li te l llab analysis of methyl iodide removal. IZ41-D004B passed the test at 99.4%. l l7 8 9 90 s1 A S % POWER OTHE R STATUS blSC R DISCOVEHY DE SCHiPTION i Ii I s i LLLj@ l 01 01 ol@l NA j i Bl@l Test Results to Engineer a l
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cl LER #: 321/1931-037 Licensec: Georgia Power Company Facility Name: Edwin I. Ilatch Docket #: 50-321
- Narrative Report for LER 50-321/1981-037
- On 4-21-81, with Unit 1 in cold shutdown for a refueling and torus' modification outage, a laboratory analysis of a charcoal-sampic taken frou control room filter train Z41-D004B was found to remove 77.9% of methyl iodide instead of the 90.0%
requited by llNP-1 Tech Specs 3.1.2.A.2 and llNP-2 Tech Specs 4.7.2.C.2.. The faulty charcoal was removed and rep? aced . by new charcoal. The new charcoal was tested por HNP-1-3975,
" Testing of Control Room and SBGT Filter Train by Vendor", and passed the DOP and Icakage test. A charcoal sampic was sent offsite for a laboratory analysis for methyl iodide removal.
The charcoal passed the test with 99.4% methyl iodido remov-al. The failure of the original charcoal was apparently due to paint fumes passing through . the filter trains while the control room ventilation system was in the recirculation mode. 1Z41-D004A was tested on 3-19-81, and was certifica according to llNP-1-3975 ~on .4-22-81. This is a nonrepetitive event for this system with no effects upon public health and safety. l l l
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