ML19290C683
| ML19290C683 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 02/04/1980 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| References | |
| IEB-79-14, NUDOCS 8002040554 | |
| Download: ML19290C683 (1) | |
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I' f ] {1 Yirginia Electric and Pcwah Co:panyO ~ ?. 5 s n ~ t North Anna Pcher Statica. Unit 11. 'NPF-4 { Dccket No. 50-338 1' I 24 ifaur Reportable Event. k Eritten Fo11cw Up 1 Event: Nonconfornances in Pipe. Support' Design l 1.ER/R0 80-02/01T-0 ' l During the review. required by IE Bulletin 79-14. of sets.nic' analyses for as-built safety related piping systems. Stone & liebster discovered the stress an pipa hangers RH-R-19 and liS-R-316 and snubters SI-HSS-1018.101C. and 107A to he over design allevable. These nonconformances affect the suction and discharge of the'RRR pu::.ps the discharga of "B" SI accumula-tar, and the service watar makeup line from the screen wash ptaps. -s The pipa supports are o' erstressed because incorrect valve wights v w re used in the design calculations. There has been no affect on the plant as a result of these discrepancies. The hangers and sr.iJhhers will. ha modified or reinforced a,s required. The unit'is presently in Mode 5 folicwing a refueling shutdcwn. ,!.-g \\ a. a .t g, L ucRPtif
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