ML20090D294
| ML20090D294 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 02/07/1992 |
| From: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20090D276 | List: |
| References | |
| CAL-RIII-92-06, CAL-RIII-92-6, NUDOCS 9203060131 | |
| Download: ML20090D294 (3) | |
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- fE5 "i 1992 CONFIRMATORY ACTION LETTER Docket No. 50-254 CAL-RIII-92-006 Docket No. 50-265 L
commonwealth Edison Company ATTN:
Mr. Cordell Reed Senior Vice President Licensing Department-Suite 300 Opus West III Downers Grove, IL 60515
Dear Mr. Reed:
This confirms the conversation on February 7, 1992, between Mr. Thomas O.
Martin of my staff and Mr.
D. Galle of your staff related to the scram and equipment failures at Quad cities Unit 1 which occurred on February 6 and 7, 1992.
With respect to the
. q matters discussed, we understand that you will perform the following actions:
1.
Conduct an investigation to determine the cause of:
a.
The failure of HPCI stop valve 1101-2317.
b.
The failure of-the "C"
relief valve.
c.
The apparent failure of the reactor feed pumps to automatically trip at the appropriate vessel level and related operator actions, d.
The reactor scram.
e.
The apparent anomalies associated with the main steam line flow instrumants, f.
Other failures which may be subsequently identified during the AIT evaluation of this event.
- 2..
Place the "C"
relief valve and the HPCI stop valve HO1-2317 in quarantine until released by the NRC's Augmented Inspection Team (AIT).
3.
Maintain documentary evidence of your investigation effort, and make this available to the AIT.
4.
Evaluate these most recent equipment failures and operator actions-in light of past equipment-failures and operator' performance to determine if additional actions are necessary.
9203060131 9poppg DR ADOCK 050002S4 l
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FEB 7 W92 Commonwealth Edison Company 2
CAL-RIII-92-006 5.
provide to NRC Region III a documented evaluation of the above issues including corrective actions you have taken or plan to take.
We further understand that reactor startup (power operation) will not occur until you have informed the Regional Administrator or his designee of the results of your investigation and corrective actions.
None of the actions specified herein should be construed to take precedence over actions which you feel necessary to ensure plant and personnel safety.
If your understanding differs from that set forth above, please call me immediately.~
Issuance of this Confirmatory Action Letter does not preclude issuance of an order formalizing the above commitments or requiring other actions on the part of Commonwealth Edison Company.
Nor does it preclude NRC from taking enforcement action for violations of NRC requirements that may have prompted the issuance of this letter.
Sincerely,
/ D h
2.4 i ob "
A.
Bert Davis Regional Administrator See Attached DistributiqD e
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,y FEB 7 1392 Commonwealth Edison Company-3 CAL-RIII-92-006
-Distribution D. Galle, Vice President, BWR Opera ions T. Kovach, Nuclear Licensing Manager R.
L.
Bax, Station Manager DCD/DCB (RIDS)
OC/LFDCB L. Olshan, LPM, NRR Resident Inspectors-Quad Cities, Dresden, LaSalle Richard llubbard J. W. McCaffrey, Chief, Public Utilities Division Robert Newmann, Office of Public Counsel, State of Illinois State Liaison-Officer J. M. Taylor, EDO J. H. Sniezek, DEDR H. L. Thompson, DEDS T. E. Murley, NRR J. G.
Partlow, NRR B. A.
Boger, NRR J. A.
Zwolinski, NRR E.
L. Jordan, AEOD J.ELieberman, OE J. R. Goldberg, OGC R. J.
Barrett, NRR R. J.
Strasma, RIII S.
D.
Burgess, RIII
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