ENS 52466
ENS Event | |
|---|---|
05:00 Dec 21, 2016 | |
| Title | Part 21 - Issues Identified with the Enterprise Diesel Engine Subcover |
| Event Description | The following information is excerpted from a facsimile report submitted:
Engine Systems Inc. (ESI) began a 10 CFR 21 evaluation on November 18, 2016 upon notification of an issue with a subcover assembly at Perry Nuclear Plant. Attempts to install the subcover on their Enterprise diesel engine revealed two issues that prevented successful installation. First, one of the bolt holes was not fully machined through the entire depth of the subcover. Though the bolt could be inserted into the top of its corresponding hole, it would not pass completely through. The second issue was an interference between the rocker arm shaft and its mating pedestal. It was found that incomplete machining of the pedestal prevented the shaft from sitting flat on the pedestal. The evaluation was concluded on 12/21/16 and it was determined that this issue is a reportable defect as defined by 10 CFR 21. The affected facilities are: First Energy - Perry Georgia Power - Vogtle Also listed was the following affected facility: Korea - Yonggwang Component: Subcover Assembly, P/N 1A-7846
The following is the summary of a facsimile: Engine Systems Inc. (ESI) determined that in addition part number 03-362-04-AH was affected by this defect. Two of these parts were supplied to Commanche Peak with an ESI certification date of 8/6/2014. Notified R4DO (Gepford) and Part 21 Reactors Group (email). |
| 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:+203.9 h8.496 days <br />1.214 weeks <br />0.279 months <br />) | |
| Opened: | Tom Horner 16:54 Dec 29, 2016 |
| NRC Officer: | Jeff Herrera |
| Last Updated: | Dec 4, 2020 |
| 52466 - 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
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