ENS 55605
ENS Event | |
|---|---|
17:00 Nov 9, 2021 | |
| Title | Part 21 Report - Hinge Pin Retainer Plug Defective on Diesel Check Valve |
| Event Description | The following is a synopsis of information received via facsimile:
The hinge pin retainer plug used on an emergency diesel generator (EDG) stainless steel check valve exhibited low breakaway torque and thus minimal resistance to loosening when subjected to engine operating vibrations. The EDG check valve is used specifically for lube oil (LO) applications in the gallery fill line between the LO cooler and main engine pressure pump discharge elbow. Consequently, if the plug were to completely dislodge, followed by the associated hinge pin, the pressure boundary of the LO system would be compromised and oil would discharge through the 3/16 inch opening. The dedication procedure for this check valve is currently undergoing revision to incorporate a rework activity that will eliminate unintended plug loosening from future shipments. The vendor expects this to be completed by December 7, 2021. The potentially affected components were shipped to the following plants: Beaver Valley, Browns Ferry, Dresden, and Surry. Technical questions concerning this notification can be directed to Dan Roberts, Quality Manager and John Kriesel, Engineering Manager at (252) 977-2720. |
| Where | |
|---|---|
| Engine Systems, Inc Rocky Mount, North Carolina (NRC Region 1) | |
| Organization: | Engine Systems, Inc |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+355.35 h14.806 days <br />2.115 weeks <br />0.487 months <br />) | |
| Opened: | Dan Roberts 12:21 Nov 24, 2021 |
| NRC Officer: | Brian P. Smith |
| Last Updated: | Nov 24, 2021 |
| 55605 - NRC Website | |
Engine Systems, Inc with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 565382023-03-28T04:00:00028 March 2023 04:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Defect Identified in Emergency Diesel Generator Governor ENS 556052021-11-09T17:00:0009 November 2021 17:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Hinge Pin Retainer Plug Defective on Diesel Check Valve ENS 555312021-08-20T16:00:00020 August 2021 16:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Pressure Regulator Valve Failure ENS 553472021-05-11T16:00:00011 May 2021 16:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Initial Report - Deviation Identified Loose Zinc Anodes Installed in Heat Exchangers for Diesel Generators ENS 544672020-01-08T05:00:0008 January 2020 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Inadequate Selenium Surge Suppressor Thread Modification ENS 543502019-09-06T04:00:0006 September 2019 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Emd Fuel Injectors Seized Plunger and Bushing ENS 542362019-08-22T04:00:00022 August 2019 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Cracked Spray Tip on Emd Fuel Injector ENS 537632018-11-30T05:00:00030 November 2018 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect En Revision Imported Date 12/24/2018 ENS 536002018-07-19T04:00:00019 July 2018 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Motor Operated Potentiometer Defect ENS 533022018-02-01T04:00:0001 February 2018 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Refurbished Pressure Regulator May Result in Emergency Diesel Generator Failure to Start ENS 527982017-06-08T04:00:0008 June 2017 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Defective Motor Operated Potentiometer ENS 524662016-12-21T05:00:00021 December 2016 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Issues Identified with the Enterprise Diesel Engine Subcover ENS 524772016-11-12T05:00:00012 November 2016 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Seizure of Fuel Injector on Emergency Diesel Generator ENS 511292015-06-05T22:12:0005 June 2015 22:12:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Incorrect Part Number Relay Shipped to Brunswick Nuclear Plant ENS 489602013-04-19T04:00:00019 April 2013 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Esi Refurbished Emergency Diesel Generator Cylinder Heads May Have Valve Keeper Seals Missing ENS 485642012-12-06T05:00:0006 December 2012 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Esi Refurbished Emergency Diesel Generator Cylinder Head with Foreign Material in Intake Port 2023-03-28T04:00:00 | |