ML060830114

10 CFR Part 21 Notification Ref: FP&L Tpn Supplied Ingersall Rand Auxiliary Feed Pump No. 0601 001 FP&L Po No. 67845

ML060830114
Person / Time
Site:	Turkey Point
Issue date:	03/21/2006
From:	Strand K Sultzer Pumps (US).
To:	Moroney B Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML060830114 (5)

Text

SULZER Sulzer Pumps Sulzer Pumps (US) Inc.

Karl Strand Quality & Environmental Manager 2800 NW Front Ave.

Portland, Oregon Phone 503.721.5792 Fax 503.226.5283 karl.strand@sulzer.com U.S. Nuclear Regulatory Commission Date 21 March 2006 Document Control Desk Washington, D.C. 20555 ATT14: Brendan Moroney

Subject:

10 CFR Part 21 Notification Ref: FP&L TPN supplied Ingersall Rand Auxiliary Feed Pump #0601 001 FP&L PO# 67845

Dear Sir or Madam,

Per the requirements of I OCFR Part 21, this letter has been written to inform you of a reportable condition in regards to a pump repaired for Florida Power & Light in use at the Turkey Point Nuclear Facility.

While repairing a pump at the Sulzer Pumps (US) Inc. Shreveport Service Center, the drive end bearing assembly was installed incorrectly which resulted in an internal oil passage blockage and the possibility of premature bearing failure.

An inlernal investigation committee was convened 20 March, 2006 per the requirements of I OCFR Part 21 and the evaluation and results of the investigation as well as corrective action are attached.

This notification isalso being sent to Florida Power & Light.

Sincerely, Karl Strand Quality & Environmental Manager Sulzer Pumps (US) Inc.

i .9

SULZER PUTPS (US) iNC. FORKA14-001-2 10 CFR, PART 21 LNTERNAL EVALUATION FORM PURPOSE:

The purpose ofthiis form is to support the requirements of I OCFR, Part 21 and SPUSA's EvaluationProcedure A142. The documentation should be via this form with all necessary backup documentation attached andmaintained in the 10CFR, Part 21 file under the direction of the Corporate Quality & Environmental Manager.

SCOPE:

This form shall be used in all conditions which have been brought to the attention of the IOCFR, Part 21 Committee.

RESPOINSIBILITY:

The responsibility for assurance of completion of this form and the subsequent actions and fiing will be that of the Corporate Quality & Environmental Manager.

PUMP SEREAL NUMBER(S) FP&L IPN supplied 1-R CNTA Aux. Feed Pump #0601001 PARTS ORDER NUMBER(S) Sulzer Order No. 08701898, FP&L PO # 67845, REPORTABLE YES m NO LI TO: NRC [_J] LICENSEES [

IPN Only (A) IDENTIFICATION OF ITEM OR PROCESS AFFECTED:

The TurkeyPoint Nuclear Plant Aux. Feed Pump drive end journal beaing was installed incor-reotly (radial orientation) which resulted in internal oil passage blockage aid the possibility of mnature beating failure due to lack of lubrication.

(B) DESCRIPTION OF THE CONDITION:

Theplant reported to Sulzex on 11/8/05 that the DE journal bearing in one of the repaired pumps hadi been installed incorrectly so that the oil passage between the housing and journal obstructed the fee flow oflube oil to the bearingjournal. It was postulated the premature beating failure was due to the lack of lubrication as a direct iesult of improper assembly of the I)Ejournal bearing.

Sulzer had generated an assembly procedure based on input from an FP&L supplied procedure, and enhanced the assembly procedure; however, neither the FP&L nor Sulzer procedure included a verification of bearing radial orientation. Regardless, the installation of the journal beating should have been performed properly. The improper installation of the bearing (radial orientation) was due to human error. Sulzef had repaired two other identical TPN Aux Feed pumps using the same' procedure, and subsequent inspections confirmed the DEjournal bearing had been correctly installed in the other pumps Sulzer had repaired. This was an isolated case ofhuman errorcoupled with a procedure that, viewed in hindsight, can be updated to include a verification of beating orientation (barrier). Given the obvious oil passage design configuration coupled with the proper assembly of the other two pumps, we do not believe this is a generic issue.

.I r-

Page 2 of 2 (C) WHO REPORTED THE CONDITION:

NAME: A. Washburn TITLE: Engineering Manager DATE: 11/9105 (D) EVALUATED BY 10 CFR, PART 21 COMMITTEE:

Chairperson:

-NAME: K. Strand TITLE: Manager, Corp Quality & DAME: 3/20/06 Environmental Members:

NAME: A. Washburn TITLE: Engineering Manager DATE: 3/20/06 NAME: J. Bohhman TITLE: Si. Project Engineer DATE: 3t20/06 NAME: J. Wood TITLE: Prqject Mgr, Quality DATE: 3/20/06 NAME: D. Spencer TITLE: Mgt, Nuclear Sernices DATE: 3/20/06 NAME: . TITLE: DATE:

NAME: TITLE: DATE: __ __.

(E) REVIEW OF LIKE CONDITIONS:

Suizer is not aware of the existence of a like condition. The TE bearing assembly is not subject to a similar assembly error due to its configuration difference. As previously mentioned Sulzer and other manufacturer's pump,designs incorporate features and instructions to preclude incorrect assembly. The only other pump component where similar improper assembly is possible is ball beating installation. In designs that incorporate duplex pairs of ball bearings the assembly instructions specifyc proper orientation ( i.e. face-to-face or back-to-back).

(NOTE: IF NO LIKE CONDITION OR POTENTIAL FOR ASIVMIAR CONDITION ISl NOTED, MAKE SURE ALL ASPECTS .OF THE CONDITION IS REVIEWED AND NOT

,LIMIT THE EVALUATION TO A SPECIFIC PUMP OR APPLICATION.)

(F) RESULTS OF THE EVALUATION The improper assembly of the subject pump resulted in the potential for premature bearing*

failure. However; Sulzer believes this was an isolated case involving human erioi for failing to detect the oil passage would be obstructed. An inspection verification (barrier) to confirm correct beating assembly orientation would prevent fiuture occurrences.

I It is our opinion the issue meets the ciiteria for defect reporting per the requirements of 10CFR Part 21, Since the incident was isolated and non-generic only the NRC and the utility willI be notified. L

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PAGE 02 03/20/20086 13:08 9368532581 POLLOK-I SULZER PUMPS (IJS) INC NC N 4.150051 NON-CONFORMANCE REPORT (NCR)

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i. 83/20/2085 13:08 9368532581 POLLOK PAGE 01 III siULZER

- SULZER SULZER NUCLEAR PUMPS (US) INC.

SERVICE CENTER rorNo_ So199-0 J CORRECTIVE ACTION REPORT (CAR)

Reference SNSC Pmncedure QSS-0.3 05-033 NIA 150051 Al Baggett QA  : 12/10/05 CAJR No. AUDIT No. NCR No Issued By Departnei U Date Art Washburn SNSC Manager of Engineering I12/2 0§ Issued To Department/Company REQUIR RESPON D DATE NON!-CONFORNMNG CONDITION OR PROBLEM:

See attached NCR 150051 for detailed description of Nonconforming Conditio IMMEDIATE ACMION TO CORRECT NONCONFORMIG CONDInION OR PROBD i FPL 'urkey PointNPS repiaced inboard journal bearing on pump S/N 0601001. Sulzer Engin inresponed to FPL Iiftial questions and started evaluation of nonconformance.

ROOT CAUSE OF NON-CONFORMANCE OR PROBLEM:

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. Corective and Preventive Action FollIow-up Required? Yes/No C~losed Bk Signature 8 1. J ate.

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