ML17206A039

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Part 21 - Hex Cap Screws Produced with Pre-existing Cracks
ML17206A039
Person / Time
Site: Crane, Peach Bottom  Constellation icon.png
Issue date: 07/13/2017
From: Furfari F
Curtiss-Wright Nuclear Division, NOVA Machine Products Corp
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
52852
Download: ML17206A039 (2)


Text

0711312017 U.S. Nuclear Regulatory Commission Operations Center Event Report Pagel Part 21 (PAR)

Event#

52852 Rep Org: CURTISS WRIGHT Notification Date I Time: 07/13/2017 15:39 (EDT)

Supplier: NOVA MACHINE PRODUCTS Event Date I Time: 07/13/2017 (EDT)

Last Modification: 07/13/2017 Region: 3 Docket#:

City: MIDDLEBURG HEIGHTS Agreement State:

Yes County:

. License#:

State: OH NRC Notified by: FRANK FURFARI Notifications: ANTHONY DIMITRIADIS HQ Ops Officer: DONG HWA PARK PART 21/50.55 REACTORS.

Emergency Class: NON EMERGENCY 10 CFR Section:

21.21 (d)(3)(i)

DEFECTS AND NONCOMPLIANCE PART 21-HEX CAP SCREWS PRODUCED WITH PRE-EXISTING CRACKS The following was submitted by the licensee via facsimile:

"This Part 21 initial notification is being submitted pursuant to the requirements of 1 OCFR21.21 (d)(3)(i).

R1DO EMAIL "Initial Notification for Hex Cap Screws produced from one heat of material - Nova Machine Products Fastener Part Numbers BPRT.008227.30, BPRT.008468.30, and BPRT.008342.30.

"This Part 21 initial notification addresses Nova Machine Products hex cap screws which contain pre-existing cracks as a result of a manufacturing process error (Forged blanks were rapidly cooled after forging instead of air cooled).

"The fasteners in question were all produced from one heat of material, which was used tb produce one blank size, which was then used to produce the three hex cap screw part numbers stated above.

"Fasteners were only supplied to Exelon TMI and Exelon Peach Bottom and are isolated to one heat of material and one manufacturing run. Containment actions are already underway with Exelon and Nova Machine.

"Nova Machine and Exelon have been and continue to be in communication on this matter. This appears to be an isolated instance.

"If there are any questions pertaining to this communication, please contact Frank Furfari, Sr. Quality Assurance Manager at 216-898-8394."

From:

Nova Machine l'roducts US Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 07/13/2017 15:34

  1. 402 P. 001/ 001 Nuclear Division 18001 Sheldon Road Middleburg Heights, OH 44130 T: 216.267.3200 www.curtisswright.com/N uclearDivision July 13, 2017

SUBJECT:

This Part 21 initial notification is being submitted pursuant to the requirements of 10CFR21.21 (d)(3)(i).

Initial Notification for Hex Cap Screws produced from one heat of material - Nova Machine Products Fastener Part Numbers BPRT.008227.30, BPRT.008468.30, and BPRT.008342.30.

This Part 21 initial notification addresses Nova Machine Products hex cap screws which contain pre-existing cracks as a result of a manufacturing process error (Forged blanks were rapidly cooled after forging instead of air cooled).

The fasteners in question were all produced from one heat of material, which was used to produce one blank size, which was then used to produce the three hex cap screw part numbers stated above.

Fasteners were only supplied to Exelon TMI and Exelon Peach Bottom and are isolated to one heat of material and one manufacturing run. Containment actions are already underway with Exelon and Nova Machine.

Nova Machine and Exelon have been and continue to be in communication on this matter. This appears to be an isolated instance.

If there are any questions pertaining to this communication, please contact Frank Furfari, Sr.

Quality Assurance Manager at 216-898-8394.

Written Notification to follow.

Yours sincerely,

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Frank Furfari Sr. Quality Assurance Manag~r Nova Machine Products