ML20214K349

Engineering Assurance Corrective Action Status Rept, In-Depth Technical Audits

ML20214K349
Person / Time
Site:	Beaver Valley
Issue date:	05/11/1987
From:	Eifert W, Twigg R STONE & WEBSTER ENGINEERING CORP.
To:
Shared Package
ML20214K330	List: ML20214K327 ML20214K349
References
NUDOCS 8705280413
Download: ML20214K349 (13)

Text

L ENGINEERING ASSURANCE CORRECTIVE ACTION STATUS REPORT IN-DEPTH TECHNICAL AUDITS BEAVER VALLEY UNIT 2 PROJECT DUQUESNE LIGHT COMPANY May 11, 1987 W.A

~

4 R.W. Twigg, Jrf M

W.M. Eifere' Audit Team Leader Chief Engineer Engineering Assurance 87-EA-001/EA294 0705280413 070520 PDR ADOCK 03000412 A PDR

1.0 INTRODUCTION

1.1 General I

This report provides the status of corrective action items resulting from an In-Depth Technical Audit of Beaver Valley Unit 2 Project.

1.2 Background

The Audit identified as Project Audit No. 52, and discussed here-in, was a multi-discipline in-depth technical audit i performed to assess the adequacy and implementation of the design process by evaluating the design of the Safety Injection

' System (SIS), related portions of the Recirculation Spray System

! (RSS), and interface aspects of other fluid systems, structures, and electrical systems and components. This audit was performed i

in conjunction with NRC overview. Details of the audit

, findings, Project responses, and corrective and preventive actions are documented in Reference 1.3.1. Project Audit No. 52 l was the last in a series of four In-Depth Technical Audits. A i

subsequent Report (Reference 1.3.2) presents an analysis of the results of all four audits, and discusses the adequacy and implementation of the design process.

t i

1.3 References i

1.3.1 Engineering Assurance Technical Audit Report. Beaver Valley ,

Unit 2 Project, Audit No. 52, August 15, 1986. I I 1.3.2 Phase 11 Report for Evaluation of In-Depth Technical Audit Results, Beaver Valley Unit 2 Project, December 16, 1986.

1.3.3 USNRC, Office of Inspection and Enforcement Inspection Report 50-412/86-23 September 24, 1986. i 1.3.4 Engineering Assurance Corrective Action Audit of Control Systems Setpoint Verification Calcuintions, Beaver Valley Unit 2 l Project, December 17, 1986.

I 1.3.5 Engineering Assurance Corrective Action Status Report In-Depth i Technical Audits, Beaver Valley Unit 1 Proj ect , February 12, i 1987.

l 1

i 5

}

i 1

i

o o

2.0 ACTION ITEM STATUS

SUMMARY

Table 2-1 identifies each Action Item, and its associated type code, resultant code, and status. Table 2-2 presents the definitions of these codes.

All of the Action Items have been closed. The closure of the Action Items was based on the Audit Team's verification of the Project's corrective and preventive actions. For activities with extended corrective action programs, the closure was based on the verification of a sample of documents completed at that time.

In addition, all of the Action Items associated with the Corrective Action Audit of Control Systems Setpoint Verification Calculations (Reference 1.3.4) have been closed.

The audit team has verified that all Licensing Change Notices (LCNs) resulting from the audit have been appropriately incorporated into the FSAR, with the exception of the LCN-1750.

LCN-1750 involved editorial changes to responses to NRC Questions 271.1, 271.2, 271.8, and 271.9 (Action Item M01). In the February Licensing Meeting, DLC advised the Project that changes to NRC questions beyond FSAR Amendment 15 would not be incorporated into the FSAR. As a result of this action.

LCN-1750 has been cancelled. This action is acceptable to the Audit Team as the changes in LCN-1750 merely restated the deleted references to FSAR Tables 3.9B-4 and 3.9B-12 and has no impact as to its technical adequacy.

87-EA-001/EA294 2

TABLE 2-1 ACTION ITEM IDENTIFICATION AND CLASSIFICATION CONTROLS Number Subject Tyge Resultant Status C01 Consistency Between FSAR Section 7.1.2.5 A L C and Table 1.8-1 l

CO2 Consistency Between SWEC and W Documents B NA C C03 Clarification in FSAR Table 1.8-1 A L C t

C04 Documents Affected by Removal of Boron B NA C Dilution Protection Alarm C05 Consistency Between SWEC and W Elementaries B NA C j C06 References in FSAR Table 1.8-1 A L C i

C07 Inconsistencies in FSAR for R.G. 1.118 A L C C08 Consistency Between SWEC and W Documents B NA C i

C09 Solenoid Valves Shown Incorrectly A D C C10 Incorrect Wiring Diagram in Instrument Index A D C C11 RSS Starting Time Consistent in the FSAR B NA C C12 Justification of Setpoint Calculation Method A D C Cl3 Setpoint Calculation Preparation Guidance B NA C C14 Setpoint Calculation Confirmation B NA C C15 Incorrect Reference on Isometric Drawing B NA C

C16 PAM Instrument Identification Consistency A D C C17 Copper Tube Vents on 3-Way SOVs A H C NOTE

See Table 2-2 for definitions of Type, Resultant and Status Codes

• Indicates change in Type and/or Resultant Code from that indicated in Table 4-1 of Reference 1.3.1.

2-1-1

. . . - . . . . . _ . - - _ ~ . . - _ . . -.-.. . _

v .-

1

~

l .

I CONTROLS (Continued) i f Number Subject Typet Resultant Status

! C18 Pressure Transmitters on SIS Accumulator A C .C I

Tank Incorrectly Tagged C19 Flex Hose Extends Into Passageway B* NA* C J

C20 Instrument Stand Rigidity A H* C(5) i C21 Elementary Diagram Referenced E&DCR Prior A D C-l to Issue C22 FSAR/ Logic Consistency A L C l

l C23 Instrument Range Consistency A D C C24 Specification 2BVS-648A Incomplete Data A D C I A D C C25 Shut-off Pressure Listed Inconsistently C26 Interpretation of Line Slope Symbol on B NA C-Isometric Drawing -

C27 Elevation of 2RSS*FT157D Shown Inconsistently A D C i

on Instrument Drawings i

C28 Flow Element Identification Drawings B NA. C C29 Isolator on Impulse Lines B NA C

! C30 Color Code Designation Consistency A ,D C i

! C31 Weight of D/P Switches Listed Inconsistently B NA C-i j C32 Grounding or Shielding Requirements on Vendor B NA C i Documents I

i C33 Instrument Tube Slope Requirements B NA C

! C34 Weights and Shielding not Shown on Vendor B NA C Documents

]

C35 Defining " Hand-Tight" Requirements B NA C

! C36 Loop Diagram Symbol A D C i

C37 Documentation for Scale Range B NA C

! C38 Elementary Diagram References and Wire Numbers A D C 1

l l,

2-1-2 ,

l

1 CONTROLS (Continued)

Nurber Subject Tyjge Resultant Status Cb9- ' Elementary Diagram Reference and Wire Number A D C C40 Set Point Calculation Errors A D* C C41 Elementary Diagram References and Torque A D C Switch Wiring C42 References within N&D 15602B A C C C43 Relief Valve Set Pressures B NA C C44 Specification 2BVS-657 Environmental Conditions B NA C C45 FSAR Consistencies Concerning Isolation Valves A L C The following Action Items are from the Corrective Action Audit of Control Systems Setpoint Verification Calculations (Reference 1.3.4).

CA01 Calculation 12241-FWE*6-1-C Identification B NA C of Setpoint Limits CA02 Calculations 12241-CCP*3-0-C and CCP*20-1-C A D C Radiation Effects CA03 Calculation 12241-SWS*12-2-C RTD Accuracy B NA C CA04 Calculation 12241-SWS*12-2-C RTD Seiswie A D C Error CA05 Calculation 12241-HVD*3-3-C Switch B NA C Repeatability CA06 Calculation 12241-SP-2CCP-1 Setpoint Bases A D C 1

87-EA-001/ EA294 2-1-3

TABLE 2-1

' ACTION ITEM IDENTIFICATION AND CLASSIFICATION ,

! ELECTRICAL.

. Number Subject Tyjge Resultant Status E01 One Line Diagram Circuit Identification A D C

! E02 MOV Motor Voltage Qualification B NA C

! E03 Submergence of MOV Limit Switches B* NA* C E04 Verification of Cable Flame Test A L* C EOS Design Criteria Separation Requirement .A D,L C E06 Equipment Qualification Temperature A D C E07 Battery Cell Temperature Justification B* - NA* C E08 Battery Room Ventilation - FSAR A L,C C E09 Electrical Penetration Separation - FSAR A L C ,

E10 Radiation Level for Equipment Qualification .A D C Eli Battery Charger Rating A D C I

E12 Battery Charger Vendor Data B NA C E13 Wiring Symmetry Between Trains B* NA* C 5* E14 Temporary Equipment in Battery Room A C C 4 EIS Cable Wraps - Battery Room A D C

^

E16 Lighting Fixture Seismic Qualification A P,D* C

E17 Battery Room Ventilation - Temporary B NA - C 4 E18 Fire Fighting Access - Cablo. Tunnel B NA. C.

E19 Green Circuit Separation - Criteria A D. C' E20 4KV Service - Sleeve Grounding B NA C ,

E21 Damaged Conduit A P ,H* (l) C E22 Specification ~ Reference A D C 2-1-4

._. . . . - - - , - . . - _ - , , _ , _ _ . . . . . , , , .y. . _ ,_ . _ . _ _ . . .

ELECTRICAL (Continued)

Number- Subject Tyge Resultant Status E23 N&D Cable Pull Calculation Error A D C E24 Cable Tray Arrangement Drawing Consistency A D C E25 Calculation Basis Referenced A D- C E26 Calculation Assumption Justification B NA C E27 Battery Calculation Invalid Input A D* C E28 Calculation Assumption Justification B NA .C E29 Battery Charger Settings B NA C E30 Cable Coefficient of Friction A* D* C E31 Relay Coordination Curve Update A D C* C E32 Hazard Analysis Target Evaluation No. 154 B . NA C E33 Hazard Analysis Target Evaluation No. 130 A C C 3

1-5 l

e TABLE 2-1 ACTION ITEM IDENTIFICATION AND CLASSIFICATION ENGINEERING MECHANICS Number Subject Tyge Resultant Status M01 FSAR Consistency A L C l M02 FSAR Consistency, Computer Programs A -L,D C M03 FSAR Consistency, Computer Programs A L,D C M04 FSAR Consistency B NA C-MOS ASME Code Applicability Dates A D C M06 HTLOAD Computer Flash Message B NA C M07 Stiff Clamp Local Stress Effects A D* C M08 Stainless / Carbon Steel Contact B NA C M09 Calculation Discrepancies A D C M10 Branch Pipe Qualification A* D*(2) C Mll Calculation Documentation A D,P C M12 Pipe Support Design Criteria Consistency A D C M13 Instrument Tubing Qualification B* NA* C M14 Tubing Calculation Update for New Isometrics B NA C M15 Pipe Clamp Application Qualification A D* C M16 Unmarked Temporary Pipe Support A C C Mi7 Calculation Input Identification A D C-M18 Parallel Snubber Load Sharing A D* C M19 Pipe Clamp Anchor Justification A D* C M20 Hydraulic Snubber Motion Qualification A D,P* C M21 N&D Documentation A C C 4

M22 Recirculation Pump Vendor Analysis B NA C 2-1-6

i ENGINEERING MECHANICS (Continued)

Number Subject Type . Resultant Status M23 Skewed T-Joint Weld Analysis A D C M24 Skewed T-Joint Weld - Standard Method Sheet B NA C M25 Pipe Support Specification Design Criteria A D C M26 Recirculation Spray Cooler Support Calculation A D C M27 Small Bore Equipment Nozzle Loads B NA C M28 Computer Model Cut Off Mode B NA C M29 Distribution of Small Bore Reports B NA C M30 Hydraulic Snubber Application B NA C M31 Invalid Flange Weights A D C 4

M32 Branch /Run Pipe Stress Intensification Factor B NA C M33 Safety /Non-Seismic Interation Criteria A D,P C M34 N&D EMD Mechanical Review B NA C M35 N&D Documentation A C C-4 2-1-7

6-o ,

TABLE 2-1 ACTION ITEM IDENTIFICATION AND CLASSIFICATION POWER Number Subject Tyge Resultant Status P01 NSSS Valve Positions A D C P02 NSSS Connection Locations- B NA' C P03 Charging Pump Cubicle Access A *(3) C P04 Minimum Wall Calculation A* D* C P05 Radiation Source Term Justification B NA C P06 Camma Dose Calculation Ratio B NA C P07 FSAR/ Specification Consistency A L C P08 E&DCR Affected Documents B NA C P09 RSS Cooler Instruction Manual B NA C-P10 Flow Diagram /P&ID Consistency A- L C Pil HVAC Calculation - Relative-Humidity B NA C P12 Stress Data Package - Inputs A D C P13 Stress Data Package Inputs A D C P14 Power / Electrical Interface B NA C P15 Power / Controls Interface A D C P16 Power /EMD Pipe Stress Interface B -NA C 2-1-8

4 9

TABLE 2-1 ACTION ITEM IDENTIFICATION AND CLASSIFICATION STRUCTURAL Number Subject Type Resultant Status S01 Cable Tray and Conduit Damping Ratio B NA C S02 Seismic Decoupling of Subsystems B NA C S03 Load Combination for T, and R, A* L* (4) C

'SO4 Steel Design Load Combinations B NA C S05 Missile Resistant Craneway Door A D C S06 Masonary Walls B NA C S07 Penetration Temperatures A L,C C S08 Charging Pump Loads A D,P C S09 Containment Penetration Construction B NA C S10 Cable Tray Support Methods B NA. C' S11 Calculation / Drawing Consistency A D C S12 Allowable Steel Stresses A D,L,P*- C S13 Steel Frame Modeling Method A D C S14 Torsion in Steel Members B NA C S15 Missile Door Vendor Calculation A D C-S16 Friction Bolts B NA C

]

u 2-1-9

e f

. TABLE 2-2 ACTION ITEM TYPE, RESULTANT AND STATUS CODES Type Codes A = Resulted in Corrective and/or Preventive Action B = Information Provided by Project Resulted in Closure without need for Project Action Resultant Codes L= FSAR Change D = Design Document Change P = Procedure Change H = Hardware Impact C = Administrative Control T = To be determined after further evaluation NA = Not Applicable Status Codes C = Closed 0 = Open Notes

1. The damaged electrical conduit was removed, the cable inspected and the conduit replaced.

2. This item was changed to indicate that corrective and preventive actions were required. Although the vent and drain piping was adequately qualified, reference to this qualification had not been included in N-5 memorandums.

3. The request to reroute three conduits and a drain line in two of three charging pump cubicles was presented to the BV-2 Change Control Board (CCB). The CCB concluded that this change was not required to license or operate the plant and should be reconsidered by the plant staff after commercial operation.

4. This item was changed to indicate that corrective action in the form of a Licensing Change Notice (LCN 1670) has been issued, consistent with the recommendation in enclosure 1 to Reference 1.3.3.

5. Design change documents have been prepared and verified. Completion of construction / inspection has not been confirmed.

2-2-1

. _. -- __