ML18295A199

Lake Engineering - Second Interim Notification Per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 11KLVS146

ML18295A199
Person / Time
Site:	Millstone, Peach Bottom, Three Mile Island, Duane Arnold, Clinton
Issue date:	09/24/2018
From:	David Brown Lake Engineering Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML18295A199 (2)

Text

LAKE ENGINEERING CO.

P.O. Box296 1O Austin Avenue Greenville, RI 02828 Tel: 401-949-4733 Fax: 401-949-0220 September 24, 2018 U S Nuclear Regulatory Commission Attn: Document Control Room Washington, DC 20555-0001 Subject Second Interim Notification per 10 CFR Part 21 Degraded Snubber SF1154 Hydraulic Fluid Batch No. 11KLVS146 This letter is a follow up to our initial notification letter dated July 25, 2018 pertaining to the above subject.

The following table reflects the status of US nuclear plants and other facilities to which SF1154 fluid from Batch 11 KLVS146 was shipped by Lake Engineering Company {LEC) in accordance with purchase orders which specified that the requirements of 10 CFR Part 21 are applicable.

Duane Arnold Fluid used in some installed snubbers No substantial safety hazards Millstone Status to be determined by facility Evaluation ongoing Three Mile Island Status to be determined by facility Evaluation ongoing Clinton Status to be determined by facility Evaluation ongoing Wyle Laboratories1 Status to be determined by facility Evaluation ongoing Peach Bottom Status to be determined by facility Evaluation ongoing 1 Currently National Testing Service {NTS)

Lake Engineering Company shall continue in its evaluation to determine whether the subject anomalies represent defects which could create a substantial safety hazard. Determination in this regard shall continue to involve interaction between Lake Engineering Company and the facilities listed above.

Our goal is to complete our evaluation by December 31, 2018 at which time a determination will have been made as to whether a substantial safety hazard exists. If additional time is required for the above determination, an 'interim report shall be submitted that shall include an updated completion date.

U S Nuclear Regulatory Commission September 24, 2018 Second Interim Notification per 10 CFR Part 21 Page2 Degraded SnubberSF1154 Hydraulic Fluid Batch No. 11KLVS146 If there are any questions or if additional information is required, please contact the writer by mail or by phone using the contact information provided above or by email at dbrown@lakeengineeringri.com.

Very truly yours, LAKE ENGINEERING COMPANY D. P. Brown, P.E.

President DPB/d/let092418.nrc cc: P. Guay - QA Mgr.