ML20073G457
| ML20073G457 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Susquehanna, McGuire  |
| Issue date: | 03/09/2020 |
| From: | Kwasigroch D Carrier Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML20073G457 (3) | |
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- 03/09/2020 MON 11: 00 FAX U.S. Nuclear Regulatoiy Commission One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 March, 9, 2020 Commercial HVAC North American Parts Carrier Parkway, TRS
. Syracuse, NY 13221
Subject:
Final Report/Notification of Defect Pursuant to 10 CFR Part 21 Reference (A): Duke Energy Carolinas, LLC (Duke Energy)
McGuire Nuclear Station (MNS), Units 1 and 2 Request for Detennination of IO CFR 21 Reportability Nuclear Condition Report (NCR) 2300622 Reference (B): Carrier 17FA999-1200-107 Oil Pump*
Duke Catalog Identification Number: I 57183 Duke Energy UTC Numbers: 30110654, 30078287 This Final Report supplements the Interim Report/Notification of Defect Pursuant to 10 CFR Part 21 submitted by Carrier Corporation on January 10, 2020.
Duke Energy Notice Duke Energy via Mr. James M. Smith issued a letter to Carrier Corporation's Customer Service
- Organization on November 21, 2019 reporting that on November 4, 2019, a Carrier l 7FA999-I200-107 Oil Pump (Duke Energy UTC Number 30110654) failed, rendering one train of the Control Room Area Chilled Water System inoperable.
A failure investigation by Duke Energy representatives determined that the oil pump, which had been in service for less than two months, had a broken shaft and failed due to improperly assembled oil pump motor assembly.
The failed oil pump and a replacement (spare) oil pump in the warehouse (Duke Energy UTC Number 30078287) both had loose fasteners and unstaked alignment pins.
Final Corrective Actions:
~001/003 Carrier issued a corrective action to our supplier on April 28, 2017 to address failures with a different non-safety related oil pump (Carrier Model 17FAS12-968) at a non-nuclear facility. The corrective action was applied to all 17F A oil pump assemblies supplied to Carrier after April 28, 2017, including both safety and non-safety related oil pumps. The corrective action consisted of cleaning of threaded holes and
{*
03/09/2020 MON 11:00 FAX
~002/003 application of red Loctite, ensuring specified torque requirements are met using a calibrated digital torque wrench, and verifying the staking operation.
Additional design modifications are being implemented, which consist of: adding an additional set screw
- with.Nylok Patch into the motor housing to secure the stator, installing pressed in dowel pins to hold the
.pump cover and pump housing together, and the addition of lock tab washers with TorQ-Patch cover bolts to keep the bolts more secure.
Carrier's records indicate that four affected pumps were supplied to three nuclear facilities: the two pumps that were the subject of Duke Energy's notjce; one pump supplied to Dominion Energy, Inc.; and
. one pump supplied to Susquehanna Nuclear, LLC. Carrier mailed letters to the three nuclear facilities on March 5, 2020, to coordinate replacement of the affected pumps. It is not known whether the pumps supplied to Dominion Energy, Inc., or Susquehanna Nuclear, LLC were improperly assembled.
10 CFR Part 21 Final Report Details (i)
- Name and address of the individual or individuals informing the Commission.
David F. Kwasigroch Carrier Corporation Carrier Parkway TRS
. Syracuse, New York 13221 (ii)
Identification of the facility, the activity, or the basic component supplied for such facility or such activity within the United States which fails to comply or contains a defect.
Duke Energy -
McGuire Nuclear Station 12700 Hagers Ferry Road Huntersville, NC 28078 Supplied Component-Carrier 17FA999-I200..107 Oil Pumps (Duke Energy UTC Numbers 30110654,30078287)
(iii) identification of the firm constructing the facility or supplying the basic component which fails to comply or contains a defect.
Carrier Corporation Carrier Parkway, TR5 Syracuse, NY, 13221 (iv)
-Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply As Guide Pin peening operations were not perfonned correctly and Cover Bolts were not torqued down enough, the two Guide Pins and two Cover Bolts vibrated loose on the Oil Pump Assembly, resulting in failure of the pumps.
(v)
- The date on which the information of such defect or failure to comply was obtained.
Carrier Customer Service was informed in writing by Duke-Energy on November 21, 2019.
2
.,./
03/09/2020 MON 11:01 FAX (vi)
In the case of a basic component which contains a defect or fails to comply, the number and location of these components in use at, supplied for, being supplied for, or may be supplied for, manufactured; or being manufactured for one or more facilities or activities subject to the regulations in this part.
Two Carrier 17FA999-1200-107 Oil Pumps (Duke Energy UTC Numbers 30110654,.
30078287) were supplied to the McGuire Nuclear Station.
One pump was supplied to Dominion Energy, Inc. and one pump was supplied to Susquehanna Nuclear, LLC. It is not known whether these pumps were improperly assembled.
ll!o o 3/ o o 3 (vii)
The corrective action which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be taken to complete the action.
Carrier mailed letters to Duke Energy, Dominion Energy, Inc., and Susquehanna Nuclear, LLC, on March 5, 2020, offering to replace the f<>ur affected oil pumps at Carrier's expense.
Corrective action and process improvements are in place with Carrier's supplier.
(viii)
Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, is being, or will be given to purchasers or licensees.
Carrier has determined that no additional affected oil pumps, beyond the four identified herein, were supplied to other nuclear facilities.
(ix)
In the case of any early site permit, the entities to whom an early site permit was transferred.
NIA Carrier considers this to be its final report to the U.S. Nuclear Regulatory Commission. If you should have any quesfons regaMing thffi matter, please contact~ unden~~
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cc:
Jim Kornemann (RC) Director W. Jay Hunston, III (RC) Legal 3
David K wasigroch Associate Director Engineering Carrier Safety Review Committee Direct Telephone: (315)-432-3461 Email:dave.kwasigroch@carrier.com