ML19257C733
| ML19257C733 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 12/13/1979 |
| From: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19257C731 | List: |
| References | |
| HOWE-309-79, NUDOCS 8001300209 | |
| Download: ML19257C733 (4) | |
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U 5tephen H. Howell
.$rnier Vice hrsadent General offleca: 1945 West Parnell Road, Jackson, Michigan 49201 + (517) 788 0453 Dece=ber 13, 1979 Ecve-309-79 A l9f Mr J G Keppler t'
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,o Office of Inspection & Enforcement
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US Nuclear Regulatory C -ission q,', Q,*g g i~
o Regien III 799 Roosevelt Read 4
N Glen Ellyn, TL 60137
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UNIT NO 1, DOCKET No 50-329 UNIT NO 2, DCCKII NO 50-330 CC?CAIN!GT INTERNAL STRUCTURES COATING DEFICIENCY In accordance with the requirements of 10 CFR 50.55(e), this letter constitutes an interi= report en in-centain=ent coatings which have a loss of adhesien between successive layers of the coating syste=.
The attach =ents to this letter provide a =cre ce=plete description of the condition and the status of the actions being taken.
Another repert, either interim or final, vill be sent en er before February 15, 1979 r-~~
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'a?2/1r Attachnent s:
1.
Quality Assurance Progra=, Managenent Corrective Action Report, MCAR-1, Report 35, dated November 13, 1979 2.
MCAR-35, Interim Report #1, dated Nove=ber 30, 1979 CC: Director of Cffice of Inspection and Enforce:ent Att: Mr Victer Stello, USNRC (15)
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Director of Office of Management Information and Program Control, USNRC (1).
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- ' 2 Hove-309-79 P.0C: JL3 acon, M-1085A VRBird, JSC-2163 JLCorley, Midland LHCurtis, Bechtel AA LADreisbach, Bechtel-Midland DEHern, Midland GSKeeley, Plk-h08B BW.arguglio, JSC-220A DBMiller, Midland MAPuschel, Pik-232 RLRi.-: ford, Bechtel AA JARutgers, Bechtel AA b ibbs, ILLE Great Lakes QA Ms.nagers File:
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MCAR1 Hove-509-79 REPORT NO.
35
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JOB NO.
7220 0028lb.
2.20 DATE November 13. 1979 0N I
- DESCRIPTION (Including references): Epoxy decontaminative surfacer applied to Unit 2 containment, northwest primary shield vall and incore tunnel exterior faces from elevation 593'-6" to about 603'-0" exhibits a loss of adhesion between the Nu-Klad 117 (N) surfacer and Acercate 90 (N) top c u t.
This surfacer was applied by subcontractor J. L. Manta in accordance with requirements of subcontract No. A-15 and specification 7220-A-15(Q) utilising system no. 9 thin coat application.
This condition was first noted by CPCo resulting in issuance of CPCo MCR M01-4-9-132
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(attached).
(Continued on page 2)
- RECOMMENDED ACTION (Optional)
I.
Determine Root Cause.
r A.
Quantify by =apping and testing coated areas to determine extent of physical problem.
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B.
Review design specification, subcontractor procedures and Quality records for acceptability of techniques, procedures, equip =ent, and materials used.
L C.
Perform analysis of caterials used for compliance with design and quality require-meats.
II.
Decemine reportability under 10CFR50.55(e) and advise QA no later than Nov. 30, 1979.
(Continued on page 2)
REFERRED TO O ENGINbERING O CONSTRUCTION OOA MANAGEMENT O
O PROCUREMENT ISSUED BY As cb II'lW l Prosect CA Entneer Date il REPORTABLE DEFICIENCY Potentially Reportable NOTIFIED CLIENT
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O NO O YES 8
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P..,ac Manager y Date '
111 CAUSE co
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CORRECTIVE ACTICN TAKEN
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AUTHORIZED BY l
Dale iTANDARD CISTR:8UTICN ADOmONAL 01STAiBUTION. AS APPRCPRfATE ms.oM on waNaGIR INGA(E A8NG waNaGEm FORMAL REPORT TO CLIENT
.aNaosa or ca. rPo Pao 4 CreNG~ era (Il Section 11 Applies)
Date PD.04 wANAGE4 A40 PROCUAtutNT sUPP(fER ovaVTV MCA O Os un actm PnoJ
,P OJ CO Sim seaNaG(m ao4Cf wa=aGin C**(F CoNSTR QC f r GALER N','ao4Cr oeraaroNs uau*Gra
$sE PacCuae ue Nr uca CORRECTIVE ACTION IMPLEMENTED e
LOPROCu84u(NTwaNACIA Pno; Pmocum(ut N1 heca ao uom cs ING'N(f A'NG Div *A(R Quaufv MGM ao uGA QF CONSTRUCTCN VERIFIED BY o..u
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..... ". e ProfeCf CA Enoncer Date
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HCAR 35 L
liovember 13, 1979 Page 2 00281i DESCRIPTION:
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Approximately 600 sq. ft. of surfacer is currently in question on primary shield and incore tunnel -ith 10-12 sq. ft. already removed during current investigation.
RECOMMENDED ACTION:
(Cont'd)
III.
Based upon the results of I, provide recoenended fix and acco=plish repair of defec~tive areas.
IV.
Take appropriate sr:eps to preclude recurrence.
V.
Provide report to QA by Novecher 30,1979 (interim or final).
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