ML20056B848
| ML20056B848 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 10/20/1976 |
| From: | Mayer L NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20056B849 | List: |
| References | |
| NUDOCS 9102130389 | |
| Download: ML20056B848 (1) | |
Text
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NORTHERN 5TATES POWER COMPANY M I N N E A PO LI S. M I N N E S CTA 5 5401 4,/,
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_D October 20, 1976 B- %
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Mr J G Keppler, Director, Region III Office of Inspection & Enforcement W' / f R
U S Nuclear Regulatory Co::rnission I
799 Roosevelt Road Glen Ellyn, IL 60137 l
Dear Mr Keppler:
On October 8,1976, it was reported to your office that No. 3 TIP ball valve failed to auto:natically close during routine operation of the TIP System and that further investigation would be made.
Investigation during the period October 11-13, 1976, has con-fimed that the valve did not fail to close properly, but rather that cold solder connections on pins in the connecting plug attached to the valve / switch body resulted in incorrect remote position indication.
This occurrence is therefore not considered reportable. No Licensee Event Report will be issued and the Event Number assigned at the time (M-RO-76-21) will not be re-used.
Yours very truly, (r. / '
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w L 0 Mayer, PE
~ f,\\s q Manager of Nuclear Support Services I
1DM/ak cc: Director, MIPC, USNRC G Charnoff MPCA Attn: J W Ferman 4 ( p,j!;1)
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L R Eliason i
9102130389 761020 l
CF ADOCK 05000263 CF OCT 2 21976
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