ML21258A254

Flowserve Nuclear Products Operations, Request for Extension to Complete Formal Evaluation Processes in Accordance with 1 0CFR21.21

ML21258A254
Person / Time
Site:	North Anna, Cook, 99901369
Issue date:	09/10/2021
From:	Yim T Flowserve Nuclear Products Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML21258A254 (1)

Text

r '-. -

FLOWSERVE '_.

NUCLEAR PRODUCTS OPERATIONS 10 September 2021 Vernon Nuclear Pump Operations, Verno_n, CA 90058

INTERIM REPORT-FORMAL EVALUATION OF DEVIATIONS REPORTED

To: Document Control Desk, Nuclear Regulatory Commission From: Thomas Yim, Nuclear Products Operations Team Leader, Flowserve Vernon NPO

Reference:

RLCA09317; O-Ring -AEP-DC Cook Flowserve Pump Division, Vernon, CA, 90058

Subject:

Request for extension to complete Formal Evaluation processes in accordance with 1 0CFR21.21

Date of Discovery by Customer: 04 May 2021 Date of Notification to Flowserve: 04 May 2021 Initial Evaluation by Flowserve Material Review Board: 10 September 2021 Results of Initial Evaluation: Inconclusive with further investigation and information required; Internal

Reference:

Docket Number - 99901369; Flowserve Pump Division, Vernon CA, 90058

• During installation at customer site, a Flowserve Field Service representative observed poor fit up of the O-ring in question. Investigation revealed an incorrect O-ring size was specified on Flowserve Kalamazoo Drawing.

• Flowserve provided the correct O-ring as a warranty replacement and the Flowserve Kalamazoo drawing was revised.

• Flowserve conducted a delivery history of the subject O-Ring and determined that Dominion - North Anna was the only other site that had received this O-Ring. (North Anna had been notified that there was an evaluation pending and reported that their O-Rings were not being used in a Safety-Related system).

• A meeting was held by the Flowserve Material Review Board to conduct an initial evaluation of the reported incorrect O-ring and to identify the inputs required to conduct a formal evaluation for the condition's impact to safety.

• The inputs include those system-related attributes as provided by the owner, AEP - DC Cook.

• While Flowserve's internal and DC Cook's on-site external corrective actions have been completed, an internal audit of corrective actions revealed that a formal evaluation by Flowserve Engineering and DC Cook System Engineers for the condition's impact to safety had not been formally conducted and recorded.

• This is in violation of the Flowserve Quality Program which is focused on conducting evaluation activities in accordance with the discovery requirements of 1 0CFR21.21. Accordingly, there has been an internal Corrective Action initiated to capture this violation.

• Efforts are currently taking place between Flowserve and DC Cook to formally convene an MRB to disposition the errant O-Ring as a Deviation or Defect.

This request is to advise of the current status regarding the delivery and installation of an errant O-Ring and to request approval for an extension through the end of September 2021 to gather critical system-related information and to conduct the delinquent Formal Evaluation.

Cc: Scott Ford, Director, Global Quality, Flowserve Corp.

Tanya Dembekjian, Plant Manager, FLS Vernon James Wilson, Facility Quality Manager, FLS Charlotte Dave Gobbi, Flowserve Quality Consultant <-/"~

,~°o~~perations Team Leader Nuclear Products Operations Flowserve Corporation Email: tyim@flowserve.com Phone: (323) 217-7989