ENS 53246
ENS Event | |
|---|---|
06:00 Dec 17, 2017 | |
| Title | Part 21 - Undersized Packing Glands in Certain Crane Gate Valves |
| Event Description | On 12/17/17, Brunswick Nuclear Plant experienced a packing gland blowout on an in-service Crane Nuclear, Inc., Figure Number 83 1/2 SPL, 10 inch by 8 inch by 10 inch, Bolted Bonnet Gate Valve. Crane Nuclear determined that component drawings for the 10 inch valve as well as the 6 inch by 4 inch by 6 inch Bolted Bonnet Gate Valve were in error. That error was corrected. Crane Nuclear is recommending that affected licensees replace the packing glands of the affected valves in their possession.
The affected licensees are Pilgrim Station, Cooper Nuclear Station, Browns Ferry Nuclear, and Brunswick Nuclear. Should you have any questions regarding this matter, please contact Joyce Hamman, Director, Safety & Quality at (678) 451-2280, Burt Anderson, Site Leader, at (630) 226-4990, or Samson Kay, Engineering Manager at (630) 226-4983.
The following information was provided as an update via fax: [Crane Nuclear, Inc.] Recommends one of the following actions be taken: - The valve gland should be replaced to tighten clearances to meet MSS-SP-120 requirements. - Install a packing washer in the current configuration that complies with MSS-SP-120 clearances. Use of a packing washer will allow for load to be evenly distributed across the packing to prevent extrusion through diametral clearances. Note, that existing drawings and bills of materials should be updated to match this configuration if this option is selected. Should you have any questions regarding this matter, please contact me, Joyce Hamman, Director, Safety & Quality at (678) 451-2280, Burt Anderson, Site Leader, at (630) 226-4990, or Samson Kay, Engineering Manager at (630) 226-4983. Notified R1DO (McKinley), R2DO (Sandal), R4DO (Groom) and Part 21/50.55 Reactors via email. |
| Where | |
|---|---|
| Crane Nuclear, Inc. Bolingbrook, Illinois (NRC Region 3) | |
| Organization: | Crane Nuclear, Inc. |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+1908.55 h79.523 days <br />11.36 weeks <br />2.614 months <br />) | |
| Opened: | Joyce Hamman 18:33 Mar 6, 2018 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Mar 22, 2018 |
| 53246 - NRC Website | |
Crane Nuclear, Inc. with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 551262021-01-06T06:00:0006 January 2021 06:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Interim Part 21 Report - Weld Procedures Do Not Meet Asme Code ENS 532462017-12-17T06:00:00017 December 2017 06:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Undersized Packing Glands in Certain Crane Gate Valves ENS 528572017-06-05T05:00:0005 June 2017 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Defective Safety Related Valves ENS 522042016-08-03T05:00:0003 August 2016 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Safety Related Component Welding by an Unqualified Welder ENS 514962015-08-26T05:00:00026 August 2015 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Pressure Seal Valve Noncompliance ENS 503362014-08-01T05:00:0001 August 2014 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Safety-Related Valves Assembled with Non-Safety Related Levers 2021-01-06T06:00:00 | |