ML15161A230
| ML15161A230 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 06/04/2015 |
| From: | Sterbis T Nutherm International |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML15161A230 (5) | |
Text
06610412015 Poop I 060/05U.S Nuclear Re-oultorv Co ~ission Onerations. Center Event Rpnnrt Pao e1 Part 21 (PAR)
Event#
51123 Rep Org: NUTHERM INTERNATIONAL, INC Notification Date I Time: 06/04/2015 14:34 (EDT)
Supplier: NUTHERM INTERNATIONAL, INC Event Date I Time: 06/04/2015 (CDT)
Last Modification: 06/04/2015 Region:
3 Docket #:
City: MOUNT VERNON Agreement State:
Yes County:
License #:
State: IL NRC Notified by: TOM STERBIS Notifications:
DAVE PASSEHL R3DO HQ Ops Officer: DONG HWA PARK PART 21 EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:
21.21 (d)(3)(i)
DEFECTS AND NONCOMPLIANCE PART 21 - POTENTIAL FAILURE OF A TIME RELAY The following was received via facsimile:
"Allen Bradley relay base model 700RTC contains an unevaluated CPLD (Complex Programmable Logic Device).
This was an unpublished design change that did not result in a part number change from Allen Bradley. There was no change to the appearance of the relay that would identify any design changes made to the relay configuration.
Allen Bradley has indicated that the change occurred in mid-2009 and that it was a rolling change with no specific manufacturing date to distinguish between the old and new configuration. Based on this information, all units manufactured during 2009 and later are suspect.
"Nutherm International, Inc. has concluded its review of all procurements of the 700RTC series relays and have found two (2) units manufactured during or after 2009 dedicated and shipped to customers. The following facility was determined to be impacted by this condition:
Utility: Exelon Plant: Quad Cities Purchase Order: 00447625 Part Number: 700-RTC111 10U1 Nutherm Traceability Number: 11340-02R01 1/01, 11340-02R01 1/02.
"In a separate 10CFR Part 21 notification, Event Number 51095, reported to the NRC [on] 5/28/2015 indicated that the CPLD can be affected by electrical noise from operation of nearby relays which can reset the timing of the relay. The plant should evaluate whether the installed relays are subjected to unevaluated EMI/RFI
[electromagnetic interference/radio-frequency interference] conditions when installed in the plant."
06/04/2015 11:32 AM 14154847068
.13018165151 01 FAX 501 South 11th Street A*4L.Nutherm i1 ntemational, Inc.
WIJ wwwnuthern.com Phone:618-244-6000 Fax:618-244-6641 Mount Vernon, IL 62864 To:
Fax: (301)816-5151 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 From:
Tom Sterbis President Nutherm International, Inc.
501S. 11t, St.
Mount Vernon, IL 62864 (618)244-6000 k
Pursuant to 10CFR 21.21 (d) (3) (11), Nutherm International, Inc. is providing in the following letter the written notification of the identification of a potential failure to comply.
Total Pages including this page: 4
G 06/04/2015 11:32 AM 14154847068
-413018165151 02 APNutherm liternational, Inc.
flwww nuthe~rm.COM 501 South 11th Street Mount Vemon, IL 62864 Phone:618-244-6000 Fax:618-244-6641 June 4,2015 Document Control Desk U.S. Nuclear Regulatory Commision Washington, DC 20555
Subject:
Report of Potential 1 OCFR Part 21, Allen Bradley Time Relay Model 700RTC Pursuant to IOCFR 21.21 (d) (3) (ii), Nutherm International, Inc. is providing written notification of the identification of a potential failure to comply.
On the basis of our evaluation, it is determined that Nutherm International, Inc. does not have sufficient information to determine if the subject condition would, or has, created a Substantial Safety Hazard or would have created a Technical Specification Safety Limit violation as it relates to the subject plant applications.
The following information is required per IOCFR 21.21 (d) (4)
(i) Name and address of the individual or individuals informing the Commission.
Thomas A. Sterbis, President Nutherm International, Inc.
501 South I lth Street Mount Vernon, Illinois 62864 (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.
Allen Bradley relay base model 700RTC contains an unevaluated CPLD (Complex Programmable Logic Device). This was an unpublished design change that did not result in a part number change from Allen Bradley. There was no change to the appearance of the relay that would identify any design changes made to the relay configuration. Allen Bradley has indicated that the change occurred in mid-2009 and that it was a rolling change with no specific manufacturing date to distinguish between the old and new configuration. Based on this information, all units manufactured during 2009 and later are suspect.
This timing relay, model 700RTC, has been dedicated/qualified for multiple applications for various plants.
O 06/04/2015 11:32 AM 14154847068
-> 13018165151 03 Page 2 June 4, 2015 (iii) Identification of the firm constructing the facility or supplying the basic component which fails to comply or contains a defect.
Nutherm International, Inc., 501 South I lth Street. Mount Vernon, Illinois 62864.
(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.
Allen Bradley made a design change in the 700RTC series timing relay. This design change added a CPLD, which meets the definition of a digital device under the guidance of NEI 01-01. Prior to this design change, the relay did not contain any digital devices. The design change occurred mid-2009; the manufacturer has indicated that there is no specific manufacturing date to distinguish between the old and new configuration. Based on this information, any 700RTC series device manufactured during 2009 or any later date may have the CPLD as part of its configuration. There is no difference in outward appearance of these relays to distinguish the difference in internal configuration.
(v) The date on which the information of such defect or failure to comply was obtained.
June 4, 2015 (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.
Nutherm International, Inc. has concluded its review of all procurements of the 700RTC series relays and have found two (2) units manufactured during or after 2009 dedicated and shipped to customers. The following facility was determined to be impacted by this condition:
Utility Plant Purchase Order Part Number Nutherm Traceabilty Number Exelon Quad Cities 00447625 700-RTCl111OUI 11340-02R01 1/01 11340-02R01 1/02 (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.
Initial actions of determining the units affected were completed 6/4/2015. The impacted customer was notified of this condition 6/4/2015. Nutherm International, Inc. does not have sufficient information to determine this condition would, or has, created a Substantial Safety Hazard or would have created a Technical Specification Safety Limit violation as it relates to the subject plant applications. Nutherm has no current orders for these units and has no units in stock. No further actions will be taken at this time. EMC qualification testing will be performed, if required by the customer.
o 06/04/2015 11:32 AM 14154847068
- 13018165151 Page 3 June 4,2015 (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.
In a separate 10CFR Part 21 notification, Event Number 51095, reported to the NRC 5/28/2015 indicated that the CPLD can be affected by electrical noise from operation of nearby relays which can reset the timing of the relay. The plant should evaluate whether the installed relays are subjected to unevaluated EMI/RFI conditions when installed in the plant.
(ix) In the case of an early site permit, the entities to whom an early site permit was transferred.
Not applicable.
Sincerely, NUTHERM INTERNATIONAL, Inc.
Thomas A. Sterbis President TAS/abs