ML19322C280
| ML19322C280 | |
| Person / Time | |
|---|---|
| Site: | Crane, Davis Besse  |
| Issue date: | 09/13/1978 |
| From: | Murray T TOLEDO EDISON CO. |
| To: | TOLEDO EDISON CO. |
| References | |
| TASK-TF, TASK-TMR NUDOCS 8001160778 | |
| Download: ML19322C280 (2) | |
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Davis-Cej se Unit # 1 Septenher 13 3.
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O, : ration of liigh Pressure Injectien During September 24, 1977 Evcnt l
John had previously talked to Fred Miller on the subject of Operator turning off 11PI part way into this event.
John's basic question to r.e was would I agree that d i f fe rent action would be required in the future on the part of the Operator specifically should they be instruct _ed_-.__.
not to turn off IIPI until noch later in the event when actual conditions of the system had been verified.
If I did agree, what steps had been performed _to_get this inforr.ation to the operators.
My reply to John to the first question was that Iint that the action taken during that event was proper and correct.
I had been present in the Control Room at the time.
There was no question in my mind that the Ope rator did act nroperly_.hv__t. urn i n_g off.
the llPI Punps at the time he had. _ John then pointed out that they were not_trying_to_ point fingers about the action that was taken on the September 24th Event.
Thev were only trving to point out that there may be a lesson that can be Icarned from that.
Ilis basic point about lesson to be learned is that knowing what we know about that event the_S_entenber 21th m
Event, 1 caving the llPI Pumps on would have actually helped our rec _overy.
If we were to_baye a similar instance whcre ilPI is required, we should look at the pros and cons _of leaving HPI run until the actual plant conditions have been evaluated.
For instance, had we left the pump run on the 9/24 Event could there have been any problems from that.
The shuuCf head on the pump is low enough we could not _have everpressurized the systert, Ther.c_ definitely would have been scac gains _by leaving it on. _ With this information_perhapue_nte11 to_ change-our procedures to reauire the llPI Pumps to be left on untiLStahle_ conditions _ arm _rstahlishM I agreed with John that we would evaluate the situation,;id t @e.;hatever vt i-i< M' i "'
- c d Ets to: T G rant, L. I!. Roe, J. G. Evans, E. C. Novak, C.
R. Demeck, J. D.
Lenardson,
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' ect ion IIead s. M. J. Derivan. L 9 Gee, DATE F#S C P A H E
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i ELEP110NE CALL DOCt!'tENTATION
'ohn Streeter to Terry Murray lcptonber 13, 1978,1700 hours0.0197 days <br />0.472 hours <br />0.00281 weeks <br />6.4685e-4 months <br />
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" rom that evaluation.
If in fact, we agree to change our procedures, we will follow up
'ith instructions to the Operators explaining to thera why this is to be done.
I Indicated to John that I would try to have this resolved and call him back on Friday.
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