Part 21 Report - 2001-340
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| LICENSEE: VERMONT YANKEE NUCLEAR POWER CORP. |
| SITE: VERMONT YANKEE 1 |
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EVENT NOTIFICATION NUMBER: 38408 |
| DOCKET: 05000271 |
EVENT DATE: 10/19/2001 |
| RX TYPE: BWR |
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EVENT TIME: |
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| VENDOR: GE-4 |
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NOTIFICATION DATE: 10/19/2001 |
| EMERGENCY CLASS: N/A |
REGION: 1 |
STATE: VT |
TIME: 16:39 |
| HQ OPS OFFICER: BOB STRANSKY |
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| 10 CFR SECTION: CCCC UNSPECIFIED PARAGRAPH |
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| UNIT SCRAM RX INIT INTIAL MODE CURR CURRENT MODE |
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CODE CRIT PWR PWR
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1 N Y 100 Power Operation 100 Power Operation
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10 CFR PART 21 REPORT
"During RFO-22, Carboline Carbozine CX-11SG paint primer was applied to the drywell shell (inner wall) to the floor joint as part of a qualified seal design. The purpose of this seal is to provide a moisture barrier to mitigate water entering the shell to concrete interface. In preparation for and during subsequent applications of the primer, significant gelling/premature set-up of the paint was exhibited (ref. ER20011169, dated 5/11/01). Within 24 hours of the paint application, the paint began to lift and blister. This paint was supplied under an Appendix B Vendor QA Program in accordance with VY PO 011040. Failure analysis received from Carboline and an independent test lab indicated the paint was defective. Carboline indicates the failure was most likely due to a moisture problem during manufacture. The problem was with part 'A' of the two-part paint. The impact of the failed paint applied in the drywell during the outage was evaluated under ER 20011169. The seal was then coated with a single coat of Carboline 890. Carboline Corporation has verified this to be an acceptable application until a permanent remedy is achieved."
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