ML22277A743
| ML22277A743 | |
| Person / Time | |
|---|---|
| Site: | 07103097 |
| Issue date: | 08/03/2022 |
| From: | Boyle R, Shaw D TN Americas LLC |
| To: | Division of Fuel Management |
| Garcia-Santos N | |
| Shared Package | |
| ML22277A716 | List:
|
| References | |
| A33010, L-2022-DOT-0008 | |
| Download: ML22277A743 (6) | |
Text
Orano NPS Unrestricted Orano
SAFETY ANALYSIS CHAPTER 1.8 REPORT MAINTENANCE PROGRAMME
Prepared by 0 orano FCC4 Verified by
Identification : DOS-19-021166-007-NPV Version : 1.0 Page 1 / 6
Tableofcontents Statusofrevision 2
- 1. Purpose 3
- 2. Maintenance programme 3
- 3. Qualityassuranceprovisions specificto maintenance 5
Non-proprietary version Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021166-007-NPV Vers. 1.0 Page 2 of 6
Status of revision
Version Date Purpose and record of revisions Prepared by / Verified by
Old reference: DOS-13-00081778-080
First issue Revision of paragraphs 8.2 and 8.3 of document TFXDC 2158 rev. H.
0 04/2012 Acceptance criterion for weld dye penetrant tests deleted and operator qualification modified.
Requirements for painting of half-shells modified.
Quality assurance requirements added.
Modification of the periodic servicing programme for Version 1 FCC4 packagings 1 11/2015 (Series 600): addition of an intermediate servicing programme and extension of the servicing programme to 50 +/- 1 rotations, or at most every 8 years, whichever is more restrictive.
2 10/2016 Additional details on the requirements of the periodic servicing programme for Version 1 FCC4 packagings.
New reference: DOS-19-021166-007
Precision concerning the quality assurance provisions 1.0 See 1st page Precision concerning the control of the pin retainer and connections for the FCC4 version 1 Series 600 at §2.3.1
Non-proprietary version Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021166-007-NPV Vers. 1.0 Page 3 of 6
- 1. Purpose
The purpose of this Chapter is to describe maintenance operations on the FCC4 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 servicing programme for Version 1 FCC4 - Series 400 or Version 2 FCC4 packagings
This paragraph is intended exclusively for Versi on 1 FCC4 - Series 400 or Version 2 FCC4 Version 2 packagings.
Every 50 +/- 1 rotations(*), or every 5 years, whichever is more restrictive, the packaging is required to undergo the following inspections and maintenance operations:
Systematic inspection of the general condi tion 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 travel 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 reinforcement 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 package operations.
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 good condition of pin retainers and connections (retaining rings, lock pin, set screw, lock washer s, presence of thread lock), by 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 where missing paint is identified.
(*) 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-19-021166-007-NPV Vers. 1.0 Page 4 of 6
The shock absorbers are subject to the fo llowing checks and maintenance operations:
Visual inspection of the condition of th e 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.
Following these inspections, all non-compli ant components are replaced or repaired.
The replacement of all connecting bolts on the 2 half-shells is carried out every 650 rotations.
2.3. Periodic servicing programme for Version 1 FCC4 - Series 600 packagings
This paragraph is intended exclusively for Version 1 FCC4 - Series 600 packagings.
Every 50 +/- 1 rotations(*) or every 8 years, whichever is the most restrictive, the packaging must be subjected to all the requirements laid down in Paragraphs 2.3.1 and 2.3.2.
2.3.1. Intermediate servicing After 5 years and for each rotation:
Verification of the general condition of the packaging and replacement of any non-compliant components; the criteria used are those defined in Paragraph 4 of Chapter 1.4 of this report.
Visual examination of the paintwork on the safety welds (welds connecting the handling boxes and the shell, welds on the reinforcement angle bars located on each sides of the handling boxes, and the peripheral welds between the shell and the flanges) on the visible zones of the two half-s hells. With this in mind, and in the event of a defect being detected (blistering, crack ed paintwork), removal of the paint from the zone in question to allow visual exami nation searching for cracks, followed by a restoration of the paintwork over the zone, which should not be completed until a surface inspection has been undertaken during maintenance. The local restoration of the paintwork is not necessary after the inspection.
Check the presence and good condition of t he pin retainers and connections (retaining rings, pins) by carrying out a visual inspecti on looking for the absence of deformation or corrosion, without disassembling. Howe ver, when the intermediate servicing of the packagings occurs before the 5-years due date since the last basic servicing or the commissioning of the packaging, this control cannot be performed before the beginning of the next rotation.
Check the operation of the support leg locking system.
Check for paint defects and rework defec tive areas on the internal and external surfaces of the shells where missing pai nt are detected (no paintwork defect beyond the contact and gripping surfaces).
Following these inspections, all non-compli ant components are replaced or repaired.
(*) 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-19-021166-007-NPV Vers. 1.0 Page 5 of 6
2.3.2. Basic servicing Every 50 +/- 1 rotations, or every 8 years, whichever is more restrictive, the package is required to undergo the following inspections and maintenance operations:
Systematic inspection of the general c ondition 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 travel 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 t he handling boxes and the shell (100% surface area inspection), the welds on the reinforcement angle bars located on each sides 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 package operations.
Check the wear of door hinge pins and hi nges, 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 good condition of pi n retainers and connections (retaining rings, lock pin, set screw, lock washers, presence of thread lock) by visual check for absence of deformation or corrosion.
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 def icient areas on the internal and external surfaces of the shells where missing paint is identified.
The shock absorbers are subject to the fo llowing checks and maintenance operations:
Visual inspection of the condition of the shock absorber (no indentation) as per the criteria defined in Chapter 1.4.
Dye-penetration testing (COFREND or equivalent) on the absorber.
Following these inspections, all non-compli ant components are replaced or repaired.
Replacement of all connecting bolts on the 2 hal f-shells is carried out every 650 rotations.
- 3. Quality assurance provisions specific to maintenance
The arrangements common to all activities and applic able to maintenance activities are described in Chapter 1.9 of this Report. The arrangements def ined in paragraphs 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.
Non-proprietary version Formulaire : PM04-4-MO-6 rev. 03 Unrestricted Orano Orano NPS Identification : DOS-19-021166-007-NPV Vers. 1.0 Page 6 of 6
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 specifications issued by it with the requirements set out in the safety analysis report.
Upon issue of each new approval certificate (renew al 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 proces s outline documents are consistent with the maintenance specification.
The entity responsible for these operations (m aintenance contractor) is responsible for the conformity of the documentation issued (process outlines, etc.) with the requirements of the safety analysis report received via documents drafted by the applicant.
Non-proprietary version