ML070370587

E-MAIL: (PD) Fwd: Entergy Info on Drywell Liner UT Measurements

ML070370587
Person / Time
Site:	Pilgrim
Issue date:	01/17/2007
From:	Perry Buckberg NRC/NRR/ADRO/DLR
To:	Jennifer Davis, Dan Hoang NRC/NMSS/DHLWRS/TRD, NRC/NRR/ADRO/DLR
References
TAC 3698
Download: ML070370587 (17)

Text

Page 1 of I Perry Buckberg - Fwd: Entergy Info on Drywell Liner UT Measurements From: Perry Buckberg To: Dan Hoang; James Davis Date: 1/17/2007 8:01:07 AM

Subject:

Fwd: Entergy Info on Drywell Liner UT Measurements CC: Kenneth Chang Jim/Dan, Attached is UT data from 1999 and 2001 that was not forwarded with the 1987 UT data last week.

Perry

>>> Glenn Meyer 1/17/2007 7:55 AM >>>

Drywell UT information from Entergy

>>> "Mogolesko, Fred" <_fmogolebentergy.corm > 01/16/2007 12:11 PM >>>

Attached please find the following:

1. Data Sheet No. 99-U-267: Drywell Liner UT Measurements--5/13/99[1 page]

2. Data Sheet No. 99-U-537: Drywell Liner UT Measurements--5/25/99[2 pages]

3. UT Measurements for IWE Program--4/29/01[4 pages]

4. Memo: UT Measurements of Drywell Liner Plate:

NDE-87-20/QAD-87-129--1/27/87[8 pages].

Fred Original

---

Message----'--

From: PNP1.18 ,DoNotRepy_@Entergy.com

[rmailto:PNP118 DoNotReply@Erntergy.com]

Sent: Tuesday, January 16, 2007 6:29 AM It~ ;

To: Mogolesko, Fred

Subject:

Scan from a Xerox WorkCentre Pro Please open the attached document. It was scanned and sent to you using a Xerox WorkCentre Pro.

Sent by: Guest [PNP118 DoNotReply@Entergy.coml Number of Images: 15 Attachment File Type: PDF WorkCentre Pro Location: ESB 3rd Fir Design Services 194.23 Device Name: PNP118 For more information on Xerox products and solutions, please visit http://www.xerox.com file://C:\temp\GW }0000I .HTM 2/1/20077

...... O O .MPage 1 Mail Envelope Properties (45AE1E13.482: 9: 8248)

Subject:

Fwd: Entergy Info on Drywell Liner UT Measurements Creation Date 1/17/2007 8:01:07 AM From: Perry Buckberg Created By: PHBI@nrc.gov Recipients Action Date & Time nrc.gov OWGWPO03.HQGWDO01 Delivered 1/17/2007 8:01:14 AM JAD (James Davis)

KXC2 CC (Kenneth Chang) nrc.gov OWGWPO04.HQGWDO01 Delivered 1/17/2007 8:01:14 AM DVH (Dan Hoang)

Post Office Delivered Route OWGWPO03 .HQGWDO01 1/17/2007 8:01:14 AM nrc.gov OWGWPO04.HQGWDO01 1/17/2007 8:01:14 AM nrc.gov Oh.

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Files. Date & Time ESSAGE 2-861- 1/17/2007 8:01:07 AM";

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Options "Auto Delete: No Expiration Date: None Notify Recipients: Yes Priority: Standard ReplyRequested: No Return Notification: None Concealed

Subject:

No Security: Standard To Be Delivered: Immediate Status Tracking: Delivered

I DATA SHEET NO. ? ?- 0-;- ? 4 7 Component or System I Procedure 0c 1c-5. 14 I 14I MR qNumber 0 I Date 1/3/99 ln.qfrUment M&TE No. Ope A* P M Mechanical Gauge M&TE No. CLP-06?

ion . Precision * /.

Preference Samples - Mechanical Measurements: 1. 0 .2. 5700 33. Jc" Ultrasonic Measurements: Time Initial: A 1. . q0 2..OO" 3. b,.-5"3i o0 30,.3A Maxdmum

.1%lifie . ,V3/l. 3. /A,5"03" j6:35A Difference Verification:- 1. 22911 2. .5000 3. A. S;'f f/

Verification: 1. _ 2. 3. _ . ........

Verification: 1. 2. 3. ..... Drift Verification: 1. 2. 3. L_______

Vedfication: 1. 2. 3.

Veriflcation: 1. . 2. 3. .

V/erific tion-: 1.- ........ -2. ___ ___3._ _ _ _ __ _ _ _ _

Maximum Probable Error Sum of Instrument and mechanical precisions, max. difference and drift = + . CO t/

Examination Data, Sketch or Description of Measured Locations

+ 00 0

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.......... I Examined bly NDT Level Date App*roved B I Date V (L* vf _Z i~li i t I f k I

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Component or System Procedure MR Number Date a4ý 6ý70- 1/- fle) 22.-;?9 in,,tument M&TE No.&2., Mechanical Gauge M&TE No. _ -. ,,q2Oq sion e2. coI Precision .2.. e.o /

Preference Samples - Mechanical Measurements: 1. e,3ea 2. L,.,.... 3. L..--,:;w Ultrasonic Measurements: Time I Initial: 1.-3o 2'..&.2 3.! 027."30 Max imum Verification: M. 3o/ 2."/.0'3 37/. 12Y. 30 Difference Verification: 1. o3o 2. A.oa.3 3. /. ,So5' -S .*

Verification: 1. ./,L 2. ,PI 3. ,o.1..//

Verification: 1. *114. 2. 3. -- M Driftw 0 02.

Verification: 1. , 2.  ! 3. 0 .,

Verification: 1. A.Q. 2. 1-33...

Verification: 1. . _3.2._///

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Maximum Probable rror Sum of Instrument and mechanical precisions, max. difference and drift = +. p t' /

Examination Data, Sketch or Description of Measured Locations 64,/-,,t,o,,. i./oi 4, 4*47 01., poýv **S--

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Component or Systemu Procedure MR. Number Date

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a - 305" 10-oo44,9 Instrument M&TE . Mechanical Gauge M&TE No. CLP-009 Precision : t X0,04 Precision: 0.001" Preference Samples - Mechanical Measurements I. C 2./. o.0 3. "1-O Maaimum Difference:

Ultrasonic Measurements: Time A.)

Initial : 1. L 2./O 3. 10 /1 /5 DriftU: 7_A Verification: 1. 2. /.-0 3. 4.0 /3.'o 'T'No..:_M oo Verification: 1. 2. __ 3. __ '1" Min.

Verification: 1. 2. _ 3. 'T' Scr.

Verification : 1. 2. 3.

Verification : 1. 2. 3.

Maximum Probable Error Sum of instrument and mechanical precisions, max difference and drift =JO ,

• p3/) 5/b I Point # : Examination Data , Sketch or Description of Measured Locations A .T1'lr arCCA, Yt UA_ 50 q 0'

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Preference Samples - Mechanical Measurements I. 5 2./, 006 3.1.0 Maximum Difference:

Ultrasonic Measurements: Time ,, . , t< I Initial: I. , 2. /' 3.- Drift : ";04 "'

Verification : 1. 4 2. A. 0 3. j 'T' Now.:

Verification : 1. 2. __ 3. - 'T'Mln.

Verification : 1. 2. - 3. r Scr. r ,

Verification : 1. 2. 3.

Verification : 1. 2. 3.

Maximum Probable Error Sum of instrument and mechanical precislons, max difference and drift , 6(1 3 /./o/

Point #: Examination Data , Sketch or Description of Measured Locations

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17 Component or System Procedure MR. Number Date Instrument M&TE No.4//0 //So*,c -/1Z Mechanical Gauge M&TE No. CLP-009 Precision :102+." 0 - 0 Precision : 0.001" Preference Samples - Mechanical Measurements 1. 14" 2./ 00,6 3.*2 Maximum Difference;:

Ultrasonic Measurements: Time . ded Initial: I._-_4 2. /. 3..0 . ),__.5 Drift:A*A ,Odd'/

Verification : 1.,5 2. .L 3. . /.s"____., 'T' Nom.:

Verification : 1. 2. 3. __ 'T'Min.

Verification : 1. 2.,,, 3. 'T' Scr.

Verification : 1. 2. 3.

Verification: 1. 2. 3.

Maximum Probable Error . * .5-/*,/

Sum of instrument and mechanical precisions, max difference and drift = , .0 Point#: Examination Data , Sketch or Description of Measured Locations e79 6"-A- iuATn C0.r-VarV'oas arfea*

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A, Component or System Procedure MR. Number Date Z44~ te.Pb kz- 0' 4- 5044 /Z_00 o3 &

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Instrument M&TE NoA,,*/0 . 15"4"w,:* 3"C Mechanical Gauge M&TE No. CLP-..9 Precision :-O.-O- 0, Precision : 0.001_

Preference Samples - Mechanical Measurements I. 0 23.

-/ 0"5 . Ma Difference:

Ultrasonic Measurements: Time - .00u i "

Initial: 1. 7- 3. 4. Drift: O, Verification : 1. - 2. 40 3. Y.Q ,.4: '0 Nom.:

Verification : 1.- 2. 3. '" Min. :

Verification : I. 2.- 3. 'T" Scr,,, f.

Verification : 1. 2.- 3.

Verification : 1.-. 2.- 3.

Maximum Probable Error /

Sum of instrument and mechanical precisions, max difference and drift Point #: Examination Data, Sketch or Description of Measured Locations 0

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Boston Edison Company To: R. K. Swanson. from: s. F. Brannan >' 9 8~7700 7c Record Typo A4,.W Date: January 27. 1987 Dept. Doc. NDE87-2OiQA-87-129*on-S~afety Rtlett@4

Subject:

Ultrasonic Thickness Measurement of Drywell Liner Plate (NESR Number 86-03 and NP 817-50-1)

F. K. Famulari 8. Perkins 0A File 1.6.1 OC Clerk PNPS J. Seery

Reference:

(a) NESR 86-03 (b) QCI 50.40.

(c) NRC Information Notice 86-99 (d) RICSIL No.09

!,r

Enclosure:

(A) Ultrasonic Thickness Measurement Report

-' Summary r% The Nuclear Engineering Department requested that specific areas of the

-. primary containment drywell liner plate be measured for wall thickness .(NESR

-. ber 86-03). The request cited the NRC Information Notice 86-99, and the General Electric Company RICSIL No. 09 as alerting utilities of possible corrosion of the drywell liner material. The drywll liner plate was ultrasonically examined, with no degradatioh'ýby corrosion found.

Discussionr In response to reference (a) a plan was established to: t)

I

.* o Obtain the required measurements. f C. Provide additional scanning surface in the event further evaluation. was required.

o Optimize the examination technique for both wall thickness and pitting corrosion.

Twelve 6" by 6" areas were prepared for ultrasonic examination at elevation 91 - 2'. This area was chosen to allow scanning for pitting :. '...

r--7 '. other techniques such as angie ueam if further evaluation were required. DOC selected the scope ultrasonic instrument, as opposed to a digit.' instrument, to allow for more detail evaulation of the ultrasonic signal, such as lamination and pitting.

KRELEASED JAN309B7 0ORU" CONTROL COPY R'ROUfWtI

Dept. DOC. Dae awr 1 97P-To: Dt:Jnay2,16 t

Subject:

Ultrasonic Thickness Neasurmn t Of 9r-vWel tiner Platt (IKSI b 86-03 and MR 87-50-1)

All twelve areas were ultrasonically examined in accordance with referwen (b). The plate thickness appears to be consistent (1.1 ltches) which compares with the design thickness of 1.0625 inches. Three small reflectors vwre fo*W

'..a$- . ", at area 9 and 12 of attached report. These reflectors werv evaluated as inclusions because they did not reduce the backface signal.

Conclusion The drywell line plate has not experienced general or localiz:J corruku.,.

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