ML20040G269

Forwards Request for Addl Info Re Preservice Insp Program

ML20040G269
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	01/19/1982
From:	Youngblood B Office of Nuclear Reactor Regulation
To:	Delgeorge L COMMONWEALTH EDISON CO.
References
NUDOCS 8202120068
Download: ML20040G269 (5)

Text

I f

DISTRIBUTION:

'~ Docket File

• bcc:

LB#1 Rdg.

TERA JAN 191982 JYoungblood PDR SChesnut LPDR MRushbrook NSIC DEisenhut TIC SHanauer ACRS (16)

RMattson Docket flos.: STil 50-454, STN 50-455, JKramer and STN 50-456, STil 50-457 RVollmer RHartfield, MPA OELD Mr. Louis 0. De1 George OIE Director of Nuclear Licensing MHumm Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690

Subject:

Request for Additional Information - Preservice Inspection Program As a result of our continuing review of the Byron /Braidwood FSAR, we have identified three areas in your preservice inspection program for which additional information is needed. These areas are described in questions 121.1,121.2 and 121.3 and are attached as Enclosure 1.

We request that you respond to these two questions tvithin seven days of receipt of this letter, of your schedule for response.

If you need further information, contact the Byrori Project Manager.

Sincerely, 4

h g'CiD!IS q

Original signed bys

/7 B. J. Youngblood JM

.{

B. J. Youngblood, Chief h ugpkma Licensing Branch flo.1 e

u Division of Licensino l

l

Enclosure:

a

,p As stated cc w/ encl.:

See next page

/

.no reporting and/or recordkeeping I

requiremcato contained in this lett#F af f cot f o rer than ten respondents i 8202120068 820119 l

PDR ADOCK 05000454 theref ore, 07.8 cicarance is not required G

PDR aerP.L.96-511.*

I

.O I ef0 3

.DI..d omce>

suame > SCitesnu t/.l g BJYMagbb...oc 77g7gy.......

. 7.j..g,.g.7......

.u...........

on>

OFFICIAL RECORD COPY uscronni-.m.m NRC FORM 318 (10-80) NRCM 024a

Mr. Louis 0. De1 George Director of Nuclear Licensing Comonwealth. Edison Company Post Office Box 767 Chicago, Illinois 60690 cc: Mr. William Kortier.

' Mr. James G. Keppler -

Atomic' Power Distribution.

~

U. S. NRC, Region III Westinghouse Electric Corporation 799 Roosevelt Road P. O. Box 355 Glen Ellyn, Illinois 60137 Pittsburgh,' Pennsylvania 15230 Paul M. Murphy, Esq.

Isham, Lincoln & Beale One First National Plaza 42nd Floor Chicago, Illinois 60603 Mrs. Phillip B. Johnson 1907 Stratford Lane Rockford, Illinois 61107 Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Dr. Bruce von Zellen Department of Biological Sciences Northern Illinois University DeKalb, Illinois 61107 1

1 Mr. Edward R. Crass Nuclear Safeguards and Licensing Division Sargent & Lundy Engineers

~.55-East Monroe Street Chicago, Illinois 60603 l

Myron Cherry, Esq.

I Cherry, Flynn and Kanter l

1 IBM Plaza, Suite 4501 Chicago, Illinois 60611 Mr. William Fourney l

4 U. S. Nuclear Regulatory Commission l

Byron / Resident Inspectors Office 4448 German Church Road Byron, Illinois 61010 Ms. Diane Chavez l

602 Oak Street, Apt. #4 i

Rockford, Illinois 61108 l

l t

l

Mr. Louis 0. De1 George Director of Nuclear Licensing Commonwealth Edison Company LPost Office Box 767 Chicago, Illinois 60690 cc: Mr. William Kortier

' Atomic Power Distribution Westinghouse Electric Corporation Post Office Box 355 Pittsburgh, Pennsylvania 15230 Paul M. Murphy, Esq.

'Isham, Lincoln & Beale

' One First. National Plaza 42nd Floor Chicago, Illinois 60603 C. Allen Bock, Esq.

Post Office Box 342 Urbana, Illinois 61801 Thomas J. Gordon, Esq.

Waaler, Evans & Gordon 2503 S. Neil Champaign, Illinois 61820-Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Mr. Edward R.' Crass Nuclear Safeguards and Licensing Division Sargent & Lundy Engineers 55 East Monroe Street Chicago, Illinois 60603 Resident Inspector - Braidwood Nuclear Regulatory Commission, Region III.

799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. James G. Keppler U. S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 o

4

(

BYRON STATION UNIT NOS. 1 AND 2 MATERIALS ENGINEERING BRANCH

?NSERVICE INSPECTION SECTION a

Review of the Preservice Inspection Program 121.1 Your_ draft preservice inspection (PSI) program includes procedures for ultrasonic examination of Class 1 and Class 2 austenitic piping welds using Appendix III of Section-XI in lieu of Article 5 of Section V.

The ASME Code,Section XI, Division 1, 1977 Edition with Addenda through Summer 1978 specifies use of Appendix III of Section XI for ferritic piping welds.

If this requirement is not applicable (for example, for austenitic piping welds), ultrasonic examination is required to be conducted in accordance with the applicable requirements of Article 5 of Section V, as amended by IWA-2232.

Provide a technical justification for any alternatives used such asSection XI, Appendix III, Supplement 7, for austenitic piping welds and discuss the following:

1.

All modifications permitted by Supplement 7.

2.

Methods of assuring adequate examination sensitivity over.the required examination volume.

3.

Methods of qualifying the procedure for examination through the weld (if complete examination is to be considered for examinations conducted with only one side access).

When using Appendix III of Section XI for inservice examination of either ferritic or austenitic piping welds, the following should be incorporated:

Any crack-like indication," 2d percent of DAC or greater, 4.

discovered during examination of piping welds or adjacent base metal materials should be recorded and investigated by a Level II or Lc=1 III examiner to the extent necessary to-determine the shape, identity, and location of the reflector.

5.

The Owner should evaluate and take corrective action for the disposition of any indication investigated and found to be other than geometrical or metallurgical in nature.

r

_ 121.2 The. Program Description,Section I, of your draft PSI plan states e

that specific components which require relief from examination requirements are listed in Section III which states that access problems encountered during preservice inspection are to be identified by the inspection contractor and inccrpcrated in the PSI plan.

Indicate when all relief requests will be submitted.

The PSI plan should include the following information:

1.

For ASME Code Class 1 and 2 components, provide a table similar' to IWB-2600 and IWC-2600 confirming that either the entire Section XI preservice examination was performed on the component or relief is requested with a technical justification supporting your conclusion.

2.

Where relief is requested for pressure retaining welds in the reactor vessel, identify the specific welds that did not receive a 100% preservice ultrasonic examination and estimate the extent of the examination that was performed.

i 3.

Where relief is requested for piping system welds (Examination Category B-J, C-F, and C-G), provide a list of the specific welds that did not receive a complete Section XI preservice examination including a drawing or isometric identification number, system, weld number, and physical configuration, e.g.,

pipe to nozzle weld, etc.

Estimate the extent of the preservice examination that was performed. When the volumetric examination was performed from one side of the weld, discuss whether the entire weld volume and the heat affected zone (HAZ) and base metal on the far side of the weld were examined. State the primary reason that a specific examination is impractical, e.g.,

support or component restricts access, fitt{ng prevents adequate ultrasonic coupling on one side, component-to-component weld prevents ultrasonic examinatipn, etc.

Indicate any alternative

~

or supplemental examination performed and method (s) of fabrication examination.

121.3 Neither your FSAR or your draft PSI program addresses augmented ISI to protect against postulated piping failures in high energy fluid system piping. High-energy fluid system piping between containment isolation valves should receive an augmented ISI in accordance with NUREG-0800, Standard Review Plan, Section 6.6, Paragraphs I.7 and II.7.

Your preservice and inservice inspection programs should be modified to include these augmented examination provisions.

.