ML20097B691

Second Interim Notification Per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 16DLVS852

ML20097B691
Person / Time
Site:	Millstone, Nine Mile Point, Waterford, FitzPatrick
Issue date:	03/20/2020
From:	David Brown Lake Engineering Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML20097B691 (1)

Text

LAKE ENGINEERING CO.

P.O. Box296 10 Austin Avenue Greenville, RI 02828 Tel: 401-949-4733 Fax: 401-949-0220 March 20, 2020 US Nuclear Regulatory Commission Attn: Document Control Room Washington, DC 20555-0001

Subject:

Second Interim Notification per 10 CFR Part21 Degraded Snubber SF1154 Hydraulic Fluid Batch No. 16DLVS852 This letter is a follow up to our initial notification letter dated January 3, 2020 pertaining to the above subject.

The following table reflects the status of US nuclear plants to which SF1154 fluid from Batch 16DLVS852 was shipped by Lake Engineering Company (LEC) in accordance with purchase orders which specified that the requirements of 10 CFR Part 21 are applicable.

Millstone Fluid used in some installed snubbers Evaluation ongoing Nine Mile Point Use status to be determined by facility . Evaluation ongoing Fitzpatrick Use status to be determined by facility Evaluation ongoing Waterford Fluid used in some installed snubbers No substantial safety hazards 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 May 18, 2020 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.

If there are any questions or if additional information is required, please contact the writer 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/let032020.nrc cc: P. Guay- QA Mgr.