ML13322A222
| ML13322A222 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde, San Onofre, 05000000 |
| Issue date: | 03/12/1987 |
| From: | Craig N NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD) |
| To: | NRC |
| Shared Package | |
| ML13322A223 | List: |
| References | |
| AEOD-T702, NUDOCS 8704270099 | |
| Download: ML13322A222 (2) | |
Text
March 12, 1987 NOTE TO:
Multiple Addresses
SUBJECT:
CORRECTION TO MEMORANDUM AND REPORT TO STUART D. RUBIN, DATED MARCH 10, 1987 Please replace this memorandum and attached first page of report with the one dispatched on March 10, 1987, subject titled: "Leaking Pulsation Dampener Leads to Loss of Charging System."
Former memo and report was missing the technical review number (T702).
This corrects one and same.
Norma Craig, Secretary AEOD/ROAB (V04270099 9670312 pDR ADoCK 050o0361 S
MEMORANDUM FOR:
Stuart D. Rubin, Chief DISTRIBUTION Reactor Operations Analysis Branch Office for Analysis and Evaluation ROAB CF of Operational Data ROAB SF TCintula THRU:
Patrick W. Baranowsky, Chief
'Rubin Reactor Systems Section 1 MWilliams Reactor Operations Analysis Branch ann-ing Office for Analysis and Evaluation JSniezek, DEDGOGR of Operational Data PBaranowsky KBlack FROM:
Theodore C. Cintula, Reactor Systems Engineer AEOD SF Reactor Systems Section 1 Reactor Operations Analysis Branch TE0D Office for Analysis and Evaluation of Operational Data
SUBJECT:
LEAKING PULSATION DAMPENER LEADS TO LOSS OF CHARGING SYSTEM The report describes three events of a loss of charging pump suction at Palo Verde due to the failure of the gas-filled pulsation dampener or the suction stabilizer on a positive displacement charging pump.
The charging system at Palo Verde is not safety-related and subsequent investigation indicated that the only safety-related system that could be affected by a similar failure of the pulsation dampener is at San Onofre 2 and 3. Accordingly, it is suggested that NPP. be informed of this finding by a separate memorandum.
Failures of the suction stabilizer, as occurred in one of the events at Palo Verde, have previously been identified and documented by other studies and no new recommendations or suggestions are appropriate at this time.
Theodore C. Cintula, Reactor Systems Engineer Reactor Systems Section 1 Reactor Operations Analysis Branch Office for Analysis and Evaluation of Operational Data
Enclosure:
As Stated cc w/enclosUre:
J. Heltemes, AEOD L. Gifford F. Hebdon, AEOD L. Licitra J. Crooks, PTB S. Massaro, PTB M. Beaumont, W H. Rood, NRR C. Brinkman, CE R. Huey, RV P. Borsum, B&W R. Zimmerman, RV T. Guynn, 0CM OFC
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NAME TCintula:as: Pis notsky: SRubi DATE :3./87 2& /87 1/8 OFFICIAL RECORD COPY the only safety-------
-elated--system--that-could be afetdb'-imlrfiueo the pulsatin dampeneri.
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