ML17118A334
| ML17118A334 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 04/18/2017 |
| From: | NRC/RGN-III |
| To: | |
| References | |
| Download: ML17118A334 (2) | |
Text
Part B Items (Onsite) - NRC information Requests (4-18-2017) - ISI Palisades U1
- 1) ITEM B.1 of NRC information request letter-Welds Selected for review A. The following Code Class welds completed during prior outage.
Work Order Code Class Description 00418130 2
INSTALL VENT ON HPSI TRAIN 2 PIPING IAW EC59222 00373452 2
SEAL WELD HX NIPPLE 00373273 2
REPLACE VALVE CCW Supply B. The following Code Class welding scheduled to occur during current outage.
Work Order Code Class Description 00409082 2 REPLACE SUSCEPTIBLE SOCKET WELDS WITH 2:1 PROFILE 00409083 2
REPLACE SUSCEPTIBLE SOCKET WELDS WITH 2:1 PROFILE
- 2) ITEM B.2 of NRC information request letter-ISI related corrective actions CR Number Description/Topic CR-PLP-2016-00782 During operation of P-8B, AFW Pump, a crack was discovered on swagelock nut. The leak rate is 6 dpm. This is ASME class 3 piping.
CR-PLP-2015-04180 Maintenance activities on RV-0721, Main Steam Safety Valve, identified after RV-0721 Passed AS FOUND Set Pressure Testing SAT under WO# 52592672.
During part inspections it was identified that there were cracks on both the nozzle and disc and a worn disc pin). All items will be replaced under WO# 52592672.
AS LEFT Certification testing will be completed prior to return of RV-0721."
CR-PLP-2016-01072 During an Inservice Inspection (ISI) Visual Examination (VT3) of ISI pipe restraint ESS-8-CSS-SLB-205PR(R147.1) under WO 385038, an unacceptable condition in accordance with the ASME Section XI Code. Code Section IWF-3410(a) which identifies the inspection acceptance criteria identified, a loose bolt on the pipe restraint (Reference NDE Report 1R24-VT-15-010).
ADAMS Accession Number ML17118A334
- 3) Item B.3-Relevant Indications Component Inspection Report No.
Description PCS-12-SIS-1A1-12 1R24-VE-15-002 One (1) sub-surface planar flaw attributed to the fabrication process was identified and evaluated as acceptable per ASME Section XI PCS-30-RCL-2A-11/3 1R24-VE-15-012 One (1) sub-surface planar flaw attributed to the fabrication process was identified and evaluated as acceptable per ASME Section XI PCS-30-RCL-1A-5/2 1R24-VE-15-018 Recordable Indication, Embedded fabrication defect, Volumetric, Acceptable PCS-30-RCL-2A-11/3 1R24-VE-15-011 Recordable Indications, Embedded fabrication defects, Volumetric, Acceptable