ML20040G943
| ML20040G943 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 02/04/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-81 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8202160646 | |
| Download: ML20040G943 (2) | |
Text
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TENNESSEE VALLEY AUTHORITX j
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400 Chestnut Street Tower II February 4,1962fIO 8 48 5'
BLRD-50-438/81-17 BLRD-50-439/81-17 U.S. Nuclear Regulatory' Commission Region II 4
Attn:
Mr. James P.'0'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - MAKEUP PUMP LUBE OIE COOLERS
- BLRD-50-438/81-17, BLRD-50-439/81 REVISED FINAL REPORT O
The subject deficiency was initially reported to NRC-0IE Inspector R. W. Wright on January 29, 1981 in accordance with 10 CFR 50.55(e) as NCR BLN NEB 8101. This a s followed by our interim reports dated March 2 and June 17, 1981 and our final report dated October 19, 1981. As discussed with D. Quick by telephone on January 21, 1982, enclosed is our revised final report. The reason for the revision is because the date for completion of the corrective action will take longer than originally identified. We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, ager Nuclear Regulation an
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' ENCLOSURE t
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 MAKEUP PUMP LUBE OIL COOLERS BLRD-50-438/81-17, BLRD-50-439/81-17 10 CFR 50.55(e)
REVISED FINAL REPORT Description of Deficiency TVA was notified by B&W of a 10 CFR Part 21 report filed by. B&W which addressed concerns on the lube oil coolers for the makeup /high pressure injection pump.
The cause of this concern is that the head opposite the. inlet and outlet piping connections of these makeup /high pressure injection pump lube oil-coolers can be misoriented so that the-coolers can have a 2-pass configuration instead of the intended 4-pass orientation. The pump vendor is BinSham-Willamette, Portland, Oregon, and the heat exchanger (lube oil cooler) is supplied by Ametek, Schutte, and Koerting Divison of Whitlock, West Hartfield, Connecticut.
Safety Implications y
The change from the 4-to 2-pass configuration will reduce the heat exchange area of the coolers by 50 percent. This loss of 50 percent heat exchange surfgce when taken.with maximum design cooling water temperature of 105 F could cause the lube oil temperature to exceed the maximum allowable te=perature of 200 F resulting in possible loss of the high pressure injection function.
- Corrective Action B&W has completed their investigation, discussed the problem with the manufacturer to prevent recurrence, and has concluded that an alignment pin should be added to the cooler. This alignment pin will physically limit the position of the cooler head to ensure proper orientation for 4-pass configuration. B&W field change packages 150 and 151 have been issued and distributed to TVA constraction to implement s
this change. The work described by these packages will be completed by s,
February 16, 1982.
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