ML22271A463
| ML22271A463 | |
| Person / Time | |
|---|---|
| Site: | Orano USA |
| Issue date: | 08/18/2022 |
| From: | Shaw D Orano USA |
| To: | Division of Fuel Management |
| Garcia-Santos N | |
| Shared Package | |
| ML22271A128 | List:
|
| References | |
| A33010, EPID L-2022-DOT-0007 | |
| Download: ML22271A463 (4) | |
Text
Unrestricted Orano Orano NPS 0
SAFETY ANALYSIS CHAPTER 1.8 REPORT MAINTENANCE PROGRAMME Formulaire : PM04-4-MO-6 rév. 03 Prepared by FCC3 orano Verified by Identification : DOS-19-021165-007-NPV Version : 1.0 Page 1 / 4 Table of contents Status of revision 2
- 1. Purpose 3
- 2. Maintenance programme 3
- 3. Quality assurance provisions specific to maintenance 4 Non-proprietary version
Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021165-007-NPV Vers. 1.0 Page 2 of 4 Status of revision Version Date Purpose and record of revisions Prepared by / Verified by Old reference: DOS-13-00081779-080 First issue Revision of paragraphs 8.2 and 8.3 of document TFXDC 2159 Rev. G.
Acceptance criterion for weld dye penetrant tests deleted and operator 0 04/2012 qualification modified.
Requirements for painting of half-shells modified.
Quality assurance requirements added.
Update of paragraph 2.2.
1 09/2017 Additional details on the dye penetrant tests carried out over the full length of the welds (100% surface inspection)
New reference: DOS-19-021165-007 1.0 See 1st page Precision concerning the quality assurance provisions Non-proprietary version
Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021165-007-NPV Vers. 1.0 Page 3 of 4
- 1. Purpose The purpose of this Chapter is to describe maintenance operations on the FCC3 packagings.
- 2. Maintenance programme 2.1. Inspections prior to each shipment Prior to each shipment the inspections described in Chapter 1.7 of this Report are carried out.
2.2. Periodic maintenance programme Every 50 +/- 1 rotations(*) , or every 5 years, whichever is the more restrictive, the packaging is required to undergo the following inspections and maintenance operations:
Systematic inspection of the general condition of the packaging and replacement of any non-compliant component. The criteria are as defined in Chapter 1.4 of this Report.
Visual and functional check through the full stroke of all bolts complete with nut connecting the 2 half-shells.
Following removal of the paint, dye penetrant inspection (COFREND or equivalent) of the full length of the welds connecting the handling boxes and the shell (100% surface area inspection), the welds on the reinforcing angle bars located on each side of the handling boxes, and the peripheral welds between the shell and the flanges.
Check the tightening torque of all bolted connections not removed during operation.
Check the wear of door hinge pins and hinges, top and bottom plates and pivot pins, with replacement if necessary according to the criteria defined in Chapter 1.4.
Check the condition of the frame and doors (criteria related to product quality of the fuel assemblies).
Check the presence and condition of pin retainers and connections (retaining rings, lock pin, set screw, lock washers, presence of thread lock), visual check for absence of deformation.
Check the condition of the ball-lock pins and effectiveness of locking in the yokes according to the criteria defined in Chapter 1.4.
Check the operation of the support leg locking system.
Check for paint defects and rework of deficient areas on the internal and external surfaces of the shells if missing paintwork is identified.
The shock absorbers are subject to the following checks and maintenance operations:
Visual inspection of the condition of the shock absorber (no indentation) every 50 +/- 1 rotations or every 5 years according to the criteria defined in Chapter 1.4.
Dye penetrant inspection of welds (COFREND or equivalent) of the shock absorber every 100 rotations or every 10 years.
(*)
A rotation represents the path followed by the container during a delivery of fuel assemblies between a manufacturing plant where the assemblies are loaded into the container and the site where the assemblies are delivered and unloaded, and the return to a manufacturing plant for container return.
Non-proprietary version
Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021165-007-NPV Vers. 1.0 Page 4 of 4 Following these inspections, all non-compliant components are replaced or repaired.
Replacement of all connecting bolts on the 2 half-shells is carried out every 650 rotations.
- 3. Quality assurance provisions specific to maintenance The arrangements common to all activities and applicable to maintenance activities are described in Chapter 1.9 of this Report. The arrangements defined in paragraph 3.1 and 3.2 are applicable to activities starting after 30 April 2022.
For activities starting before 30 April 2022, the rules and classification defined in the previous revision of this chapter are applied.
3.1. Conformity with the maintenance specification It shall be checked that maintenance documents are conforming with the maintenance programme defined in this chapter.
The designer is responsible for the conformity of the maintenance specification issued by it with the requirements set out in the safety analysis report.
At the issue of each new approval certificate (renewal or extension), the compliance of all maintenance documents must be confirmed once any changes have been taken into account.
These verifications must be recorded.
3.2. Compliance of maintenance process outlines It shall be checked that all maintenance process outlines documents are consistent with the maintenance specification.
The entity responsible for these operations (maintenance contractor) is responsible for the conformity of the documentation issued (operating procedures, etc.) with the requirements of the safety analysis report received via documents drafted by the applicant.
Non-proprietary version