ML19248D380
| ML19248D380 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/20/1979 |
| From: | Mattson R Office of Nuclear Reactor Regulation |
| To: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| Shared Package | |
| ML19248D372 | List: |
| References | |
| NUDOCS 7908150707 | |
| Download: ML19248D380 (1) | |
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.M m ' 'n NUCLEAR 3EGULATORY CCMMISSION
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Stello, Director Office of Inspection and Enforcer..ent s ',M -
R. J. Mattson, Director Division of Syster.c Safety, NRR SUdJECT:
HPI PUMP PER.CP.P.ANCE DURING THE TMI.4CCIDE!iT 2., ed on
- v understanding of the results of the investigation of the
.v.: accident currently available,.T.sny of the significant systt and eyip ent per.ir.mance questicns have been ic.cntified and wr4 cn th tir c.ewric implicaticas is underway.
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iionirig of the High Pressure injection Eyst27. pumps Juring the accident c :HI has not been suf ficiently characterized at this ti as.
There 3;; ears to be ccafiicting infor.ation as to whether the frequent trip-ping of the HP: pumps and alleged diffical ty in their restarting was an c;cr2 tor prebiem or a design (mechanical, diectrical, and cc.itrols) pr:bkm.
The f.essc.ns Leerned Task Force r': quests that the irvestigation
/ the cane of tae frequent tripping of these pur.'ps during the first.ixtaren 1, curs of the accident be given a higher priority in order that any
.;n ; ficent ge 3eric implications for r2 actor safaty be quickly.&ati-fisd.
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