ML20059H791
| ML20059H791 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 01/11/1994 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-90-001, IEB-90-1, ULNRC-2936, NUDOCS 9401310159 | |
| Download: ML20059H791 (5) | |
Text
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'] January 11, 1994 j,
U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station F1-137 Washington, D.C.
20555 ULNRC-2936 Gentlemen:
DOCKET NUNBER 50-483 CALLAWAY PLANT NRC BULLETIN 90-01 AND SUPPLEMENT 1: LOSS OF FILL-OIL IN TRANSMITTERS MANUFACTURED BY ROSEMOUNT
References:
1.
ULNRC-2817, dated July 7, 1993 2.
ULNRC-2766, dated February 23, 1993 3.
ULNRC-2255, dated July 18, 1990 The above references addressed the requested reporting requirements in Bulletin No. 90-01 and-Supplement 1 concerning failure of Rosemount transmitters.
During recent teleconferences with the NRC Staff members, additional information was requested regarding our completion of the changeout of the seven auxiliary feedwater pump discharge flow transmitters (AL-FT-0001, AL-FT-0002, AL-FT-0003, AL-FT-0004, AL-FT-0007, AL-FT-0009, and AL-FT-0011), and requalification training for licensed personnel to retain confidence in their ability to detect future failures caused by loss of fill-oil in Rosemount transmitters.
As discussed during the telecon the last auxiliary feedwater pump discharge flow transmitter (AL-FT-0007) was replaced on December 15, 1993.
Also the discussion regarding the requalification training is described below:
Training on Rosemount instrumentation failures has been incorporated into licensed operator initial training' courses.
In addition, this issue has been discussed in licensed operator requalification training.
Training on instrumentation failures is an on-going feature of Callaway's. Licensed Operator Requalification Program.
The retraining provided to operators in this area is designed to reinforce the 1
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Nuclear Regulatory Commission Page 2 knowledge and skills necessary to identify and deal with the impact of various instrumentation failures.
The-Reactor Operator / Senior Reactor Operator Job and Task Analysis currently requires, as a minimum, that eleven different instrument failures be covered every two years.
These required instrument failures include instrumentation that utilize Rosemount transmitters.
In the last two year requalification cycle, at least 20 instrument failures were incorporated into simulator scenarios.
In summary, we are confident that Callaway's Licensed Operator Requalification Program is sufficient to maintain operator knowledge and skills necessary to not only detect current and future failures caused by loss of fill-oil in Rosemount transmitters, but also j
detect other instrument failures.
If there are any additional questions on the above, please contact us.
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Very truly yours, j
O bu s
I Donald F.
Schnell JMC/ dis
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f STATE OF MISSOURI )
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Donald F.
Schnell, of-lawful age, being first duly sworn upon oath says that he Senior Vice President-Nuclear and an officer of Union Electric Company; that-he has read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.
By
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Donald F.
Schnell Senior Vice President Nuclear l
SUBSCRIBED and sworn to before me this Ad'/u'"I day of OS-tr <u # W 1994.
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-,h,l Y BARBARA J. PFAFF.
N01 ARY PUBLIC-STATE OF MISSOURI MY COMMISSION EXPlRES APRIL 22,133Z ST. bOUIS COUNTY l
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cc:
T..A.
Baxter, Esq.
Shaw, Pittman, Potts & Trowbridge 2300 N.
- Street, N.W.
Washington, D.C.
20037 M. H.
Fletcher CFA, Inc.
18225-A Flower Hill Way Gaithersburg, MD 20879-5334 L. Robert Greger Chief, Reactor Project Branch 1 U.S.
Nuclear Regulatory Commission Region III 801 Warrenville Road Lisle, IL 60532-4351 Bruce Bartlett Callaway Resident Office U.S. Regulatory Commission RR#1 Steedman, MO 65077 L. R. Wharton (2)
Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop 13E21 11555 Rockville Pike Rockville, MD 20852 Manager, Electric Department Missouri Public Service Commission P.O.
Box 360 Jefferson City, MO 65102 l
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D. Shafer/A160.761
/QA Record (CA-758)
Nuclear Date E210.01 DFS/ Chrono D.
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Schnell J. E. Birk J. V.
Laux M. A.
Stiller G.
L.
Randolph R. J.
Irwin P.
Barrett C.
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Naslund i
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D.
Blosser
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Passwater D. E.
Shafer W.
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Kahl S.
Wideman (WCNOC)
M. D. Archdeacon (Bechtel)
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Sampson NSRB (Sandra Dale) t m