ML070670408

Torus General Visual Report, 10/28/1999 (55 Pages)

ML070670408
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	11/28/1999
From:	Entergy Nuclear Operations, Vermont Yankee
To:	Office of Nuclear Reactor Regulation
References
YA-IWE-VT-062 Drawing 5920-42 YA-IWE-VT-062, YA-VT-11
Download: ML070670408 (59)

Text

PAGE 62

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999 12:16 2585958 VY IS1 CONTAlNMENT GENERAL VISUAL EXAMINATION. REPORT 1

There are typical small areas at the Intersection of the Torus Bays that are nbn-painted and exhibit minor surface rust, These areas show no degradation of the base material.

The top outside sUrFace: of he Torus, under the Torus catwalk, from where the catwalk connects to the Torus (1 1 o'clock position) to the Torus equator weld seam (9 o'clock position) Is covered with dirt and debris which prohibits General Visual examination.

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SKETCH There are typical small areas at the intersection of the Torus Bays that are nbn-painted and exhibit minor surface rust, These areas show no degradation of the base material.

The top outside surface of the Torus, under the Torus catwalk, from where the catwalk connects to the Torus (11 o'clock position} to the Torus equator weld seam (9 o'clock position) is covered with dirt and debris which prohibits General Visual examination.

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Du an, Mike (C) d Mechanical/StructuraI Input to Operability Determination for Cracked Welds on Torus Vacuum Breaker Bellows Cover Supports Thursday, Octo b er 21, 1999 651 AM

--Original Message--

From:

Fitrpatridr, Jim Sent:

To:

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Wednesday. Odober 20. 1999 338 PM Girroir, Dennis; Connell, Ralph (C)

CorbeH, Pat; Callaghao, James: Goobwii. Scott MechanicaVStructural Input to Operability Determination for Cracked Welds on Yorus Vacuum Breaker Eellows Cover Supports

Ralph, Please use the following as input to the Event Report

References:

(a) IS1 Inspection Re rts Nos, YA-IWE-VT-016, -017, -018, -019, 420, -021 (b) Yankee Atomic - &on Memo, T.M.O'Connor to S.R.Miller, subject: "Operability Evaluation of Bellows",

(c) Certified Stress Report, Vernon-ll, Vermont Yankee Project Containment Vessel No.9-6202-ll, W M 98c96, dated June 20,1996.

October 29,1968,by Chicago Brid e & Iron - Oak Brook Engineerin by Teledyne Engineering Services.

(d) Vermont Yankee Torus Attached B iping Analysis X-202F, No.5318-%202F, Revision 0, dated 3/18/83, IS1 IWE Visual Inspection Reports, reference(a), for the toms vacuum breaker lines including the expansion bellows for X202A, -

8,- G,- D, -E. -H indicate cracked andlor broken welds between the external surfece of the vacuum breaker line and the angle support clip for the beflows covers. The cracked andlor broken welds are attached to, but are not part of the containment pressure boundary.

This issue was addressed previously in reference(b). Reference (b) evaluated the effects on the expansion bellows with afl bolls still in place. It predicted that these welds are the weak link and that these connections would crack or fail before the bellows was affected. It rovided recommendations to remove the center bolts and all the bolts from one end of the covers. Apparently this was not perkrmed.

Based on the asfound condition, the cracks are located on in the fillet weld area and due not compromise the containment not have the strength lo resist the imposed axial or lateral mwements from a design basis accident (DBA Based on the discussion and conclusions in reference(b) the bellows will still perform their design function with the cracked and/or broken wekls.

References (c) and (d) were reviewed for the effects of the minor to moderate rust identifled [in reference(a)] on the exterior of the carbon steel center spool pieces of the expansion bellows. The spool pieces are 1/2 inch nominal wall thickness. The only significant loads on this component are from the DBA. These are an axial load from the bellows displacements and the internal pressure in the vent lines. The axial load is limited by the bellows stiffness. Given the short length of the spool piece, even significant wall loss over the entire spool piece would not affect the axial bad capacity of the bellows assernb. The code required wall thickness for an internal design pressure of 56 psi is approx. 0.032" for the 18" bellows and approx. 0.04% for the 24 inch bellows. The spool piece has significant margin for wall loss and the minor to modeate rust will not affect thew ability of the bellows assembly to perform its design function.

pressure boundary. The cover support brackets in the crac 3; ed andlor broken condition still hold the covers off the belbws and do If you need anything more please call. 1'11 be available at d848 if the S.S. has questions when you bring the ER to the Control Room..

Jim Flk.

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MW$W MEMORANDUM V.Y. Design Englneering-Mechanlcal/StructuraI Department e

TQ J. H. Callaahan Date November 28,1999 From J. C. Fitzpatrickl D. F. Grimes Group # VYM 991147 Subject Closure of Inservice DiscreDancv Report. IDR 99-07 REFERENCES (a) VY IS! Inservice Discrepancy Report IDR 99-07, daled October 21,1999, Torus 6ay 4,ISf Inspection Report (b) Calculation VYC-1032, Rev. 1 I Torus Shell and Vent System Thickness Requirements.

DISCUSSION NOS. YA-IWE-VT-062 IDR 99-07 identifies a localized area on the torus exterior shell that exhibits base metal loss at a maximum depth of 1/32" as measured from adjacent metal surfaces. This area is approximately 4" x 4" and is located 3-112' above penetration X-226A at elevation 230'. The area is cited as being blended and coated.

The 4" x 4" area is at an arc length of approx. 16.2' from the torus bottom centerline. The nominal wall thickness is 0.584, the depth of this area is 0.031 25", the remaining wall thickness is 0.553",

the acceptance criteria for general area corrosion is 0.541". The remaining wall thickness of the affected area is within the acceptance criteria defined in VYC-1032 for general area corrosion. There are no further evaluations required given the area identified meets the shell thickness requirements.

CONCLUSION

?his memo serves to document the engineering evaluation for closure of IDR 99-07. There are no long term corrective actions associated with this IDR.

-FA -

David F. Grimes Senior Engineer - MechanicaUStructuraI Dept.

Vermo Yankee Design Engineering P

S h d r Engineer - MechanicaUStructural Dept.

Vermont Yankee Design Engineering cc D Girroir M Dugan S D Goodwin R Connell

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MEMORANDUM b 4\\'LaD\\ ru V.Y. Design Engineering-Mechanical/Structural Department TO J. H. Callaahan Date November 24.1999 From J. C. Fitmatrick Group# VYM 99/139 Subject Disposition of Inservice Discreoancv ReROrtS IDR 99-012 and JDR 99-01 8

REFERENCES (a) Vermont Yankee IS1 Inservice Discrepancy Report IDR 99-32, dated November 8,1999, "Moisture barrier {seal) between primary containment boundary shelf and concrete floor exhibits evidence of degradation." IWE Inspection Report No. YA-IWE-VT-117 and VY Event Report No. 99-1594.

X-5G Corrosion", IWE Inspection Report No. YA-IWE-VT-146.

(b) Vermont Yankee IS1 Inservice Discrepancy Report IDR 99-1 8, dated November 13,1999, "Drywell Interior neaer (c) Vermont Yankee IS1 UT Inspection Report No. YA-UT-112-228, Suppfemental wall thickness measurements adjacent to pitted areas at X-5C. dated November 13,1999, (d) Vermont Yankee Calculation VYC-2043, Revision 0, "Evaluation of Primary Containment Localized Thinnhg and DISCUSSION Screening Criteria for ASME XI 1WE Inspections".

Visual inspections of the primary containment surfaces are performed under ASME Section XI, Subsection IWE. Areas of corrosion and possible wall loss are evaluated by engineering. This memo documents the MechanicaVStructural Design evaluation of findings identified in Inservice Discrepancy Reports (IDR) Nos.99-012 and 99-018. references(a) and (b).

JDR 99-01 2 Inspection report YA-IWE-VT-111, reference(a), identifies areas of missing paint, surface corrosion, and pitting at the intarsection of the concrete slab and the primary containment shell at elevation 238 in the drywell. The areas of pitting are limited to three locations with a combined total length 50 inches out of a circumference of approximately 1650 inches or 3% of the total circumference at elevation 238. The base metal thickness adjacent to the pitting locations was verified by UT inspection, reference(c) and conforms to the design drawings.

A bounding evaluation of corrosion at this location was performed In calculation VYC-2043, reference(d). The bounding evaluation assumes the entire circumference of the drywell shell for

'a four inch height (2 inches above and below elevation 238) is corroded 3/16 inches and an additional 0.050 inches to account for future corrosion, The calculation demonstrates that the stresses in remaining steel thickness accounting for a total assumed wall loss of 0.2375 inch are still below the ASME 111 code allowables..

Based on the evaluation in VYC-2043 the primary containment will still perform its design function and meet code requirements in the as found condition described in IDR 99-012. The evaluation conservatively bounds the existing conditions and any additional corrosion at these tocations until a repair of the coating and/or seal configuration can be performed.

JHCallaghan VYM 991139 Page 2 of 2 IDR 99-018 inspection report YA-IWE-VT-146, reference(b), identifies approximately 20 square inches of areas of moderate rust and corrosion at the X-5G vent line jet shield stiffener to drywell surface interface. No significant wall loss was identified. The stiffeners are welded to the primary containment and are not part of the pressure boundary, The primary containment is 2.50 inches thick at this location. This condition is enveloped by the general shell corrosion evaluation performed in VYC-2043, reference(d). Significant margin exists for localized corrosion at this location. No further action is required. Future rnonitorlng of this location will be performed as required by IWE criteria. 2 s C. Fitzpatilck

&&r Engineer - MechanicaVStructuraI Dept.

Vermont Yankee Design Engineering 1

Scott D. oodwin Supervisor - MechanicaVStructural Dept.

Vermont Yankee Design Engineering cc DGirroir RConnel ATTACHMENTS Vermont Yankee IS1 lnservice Discrepancy Reports IDR 99-01 2 and 99-01 8

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MEMORANDUM V.Y. Design Engineering-Mechanlcal/S~ructural Department TO J. H. Callashan Date November 24,1999 J. C. FitzDatrick Group# VYM 99/139 From Subject DisDosition of Inservice Discretmncv R ~ R o ~ ~ s IDR 99-012 and IDR 99-018 REFERENCES (a} Vermont Yankee IS1 Inservice Discrepancy Report IDR 99-12, dated November 8,1999, "Moisture barrier (seal) between primary containment boundary shell and concrete floor exhibits evidence of degradation." IWE Inspection Report No. YA-IWE-VT-111 and VY Event Report No. 99-1594.

(b) Vermont Yankee IS1 lnservice Discrepancy Report IDR 99-18, dated November 13,1999, Drywell lnlerior neaer X-5G Corrosion", IWE Inspection Report No. YA-IWE-VT.146.

(c) Vermont Yankee IS1 UT Inspection Report No. YA-UT-112-228, Supplemen tal wall thickness measurements (d) Vermont Yankee Calculation VYC-2043, Revision 0, "Evaluation of Primary Containment Localized Thinning and DISCUSSION Visual inspections of the primary containment surfaces are performed under ASME Section XI, Subsection IWE. Areas of corrosion and possible wall loss are evaluated by engineering. This memo documents the MechanicaVStructural Design evaluation of findings identified in Inservice Discrepancy Reports (IDR) Nos.99-012 and 99-018.

references(a) and (b).

adjacent to pitted areas at X-5C, dated November 13,1999.

Screenlng Crlteria for ASME XI IWE Inspections".

IDR 99-012 Inspection report YA-IWE-VT-111, reference(a), identifies areas of missing paint, surface corrosion, and pitting at the intersection of the concrete slab and the primary containment shell at elevation 238 in the drywell. The areas of pitting are limited to three locations with a combined total length 50 inches out of a circumference of approximately 1650 inches or 3% of the total circumference at elevation 238. The base metal thickness adjacent to the pitting locations was verified by UT Inspection, reference(c) and conforms to the design drawings.

A bounding evaluation of corrosion at this location was performed in calculation VYC-2043, reference(d). The bounding evaluation assumes the entire circumference of the drywell shell for a four inch height (2 inches above and below elevation 238) is corroded 3/16 inches and an additional 0.050 inches to account for future corrosion. The calculation demonstrates that the stresses in remaining steel thickness accounting for a total assumed wall loss of 0.2375 inch are still below the ASME 111 code allowables.

8 ~ 8 6 c d -

Based on the evaluation in VYC-2043 the primary containment will still perform its design function and meet code requirements in the as found condition described in 1DR 99-012. The evaluation conservatively bounds the existing conditions and any additional corrosion at these locations until a repair of the coating and/or seal configuration can be performed.

J HCal taghan VYM 99/139 Page 2 of 2 IDR 99-018 Inspection report YA-IWE-VT-146, reference(b), identifies approximately 20 square inches of areas of moderate rust and corrosion at the X-5G vent line jet shield stiffener to drywell surface interface, No significant wall loss was identified. The stiffeners are welded to the primary containment and are not part of the pressure boundary, The primary containment is 2.50 inches thick at this location. This condition is enveloped by the general shell corrosion evaluation performed in VYC-2043, reference(d). Significant margin exists for localized corrosion at this location. No further action is required. Future monitoring of this location will be performed as required by IWE criteria.

chanicaVStructural Dept.

Vermont Yankee Design Engineering Supervisor - Mechanical/StructuraI Dept.

Vermont Yankee Design Engineering cc DGirroir RConnel ATTACHMENTS Vermont Yankee IS1 lnsewice Discrepancy Reports IDR 99-012 and 99-01 8

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/&2 PROCEDURE YA-VT -11 REVISION 6

16 Qf 29 PACE

)t$A-/LJ&-L'T-/

VT-IIVT-3 COWTATHNENT EXAHI: HATIOH REPORT I

I

'fT-1 ph slcal Damage or Displacement p1 0

0 I

O e h El Paint 611 stering a

Palnt Flaking or PeelIng 0

Df scol orati on 0

Corrosion Erosion 0

0 Date:,--

Date: -_z_

' PROCEDURE YA-UT - 11 2 W C L W SERVICES DMSTON REVISION PAGE 6

6 o f 6 PROCEDURE SKETCH UITH RESULTS:

L PROCEDURE Y A - V T - 11 REVlSION 6

PAGE 16 o f 29 Ph rlcal Damage or Displacement P a l n t Blistering 0

0 0

m d r i s P a l n t Flaking or Peeling O

a L

Corrosion Erosion a

I3 Other 0

a 0

0 m

B1 Discoloration U

0 yT-1 OR VT-3 EXAHIHATION OF VT-1 Y1-4 u

Cracks P i tti ng Arc Strlkes Gouges or Oentt Other Surface DlscontlnoSt{es Ph sical Damage or Displacement d r i s

Wear Olseoloration Excessive Corrosion Erosion Other

..be AH= x e d r4~r

1. >L REMARKS

,=

Seals Gaskets and Holsture B a r r f e r s 7

1 s

N/A "T

U IB 0

B 0

m I

n Wear Dana e Eros!on a

Tears Surface Cracks a

CI Other REMARKS Oate: / ~ / 2 - 9 ~

Date:

Date: 'w Date:

Date: 'B!

NOH-COATED SURFACES A

t n c 73-

+F e Orua e

g : :

O O

u u

o i

I U

I I 0 I

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0 RI 0

U 0

U U

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VT 2

SUPPLEMENTAL DATA SKEET EXAM I NER Cog. Eng./E IS1 Coordin NOTE: Accepted QA (Optional)

ANI1 (Optional)

Date: jl-247

/ a fi Level: a Date: /,wz-cp Date:

/'

FORM 1

NUCLEAR SERVICES DMSION INSERVICE INSPECTION YT-1 OR VT.3 EXAHINATIOH OF COATEO SURFACES

E==%

VT-I ri V I - 4 ps Cracks Ph steal Oamage or Oisplscernent

$I 0

m O

I 0

Paint Blisterlng e

m Paint Flakfng or Peeling 0

D l scol o r a t ion 0

Corrosion O

I Erosion m

E3 Other a

D e i r I s YA-VT-11 PROCEDURE REVISION PAGE 6

16 o f 29 YT-1 DR VT-3 EXAHINATION OF YT-1 u w1-d U

Cracks P i t t i n g Arc S t r l k e t Gouger o r Dents Other Surface Dlscontinuftfes Ph sical Damage o r Dfsplacement o e h s wear OI tcol oration Excerslvs Corrosion Erasion Other Seals Gaskets and NoistUPt2 Barriers

$cgpt Kecoraable H I A u

0 O

Is 0 T Other 0

n. 0 IB Year Oama e Surface Cracks n

0 m

Tears Eror?on E

SUPPLEXEHTAL DATA SHEET ATTACHED:

gl YES b NO Date: &-94$

Date; Date:

NUCLEAR SERVICES DrVISION INSERVICE INSPECTION VT 3

SUPPLEMENTAL DATA SHEET Y A-VT-11 6

8 o f 29 PROCEDURE R E m ~ f ~ ~

PAGE Date: ~ g f c i Date:

IS1 Coordinato Date: d@

t a ched.

Date:

Date: erq FORM 1

SKETCH -

SUPtLEEEEHTAL DATA SHEET ATTACHED:

c3 Y E S 5 KO

VT-l/YT-J COHTAtHHEHT EXAMINATION REPORT PLAHT I/

OWAGE 2 I

ORAW[HG 62

~2 - 2 REV. 0 c;&*oPf 7 4 f

~

~

~

p SYSTEH canfe;n msnr COHPOHENT HO. &,rYc//

fupYG< e L O C A T ; ~ ~ O ~

/?A.,&yLye//

n'fcr/cr/ /0/6&

c d &!.

2 3 s ' f u 2Cl' o,dA z.

EXAH lHAT ION CON0 I T IONS VT-1 Only:

Resolution Check: 0 YES 0 HO lcces5.<24': 0 YES E3 NO Angle )30m: 0 YES 0 NO c

E XAH IHATIOR ATTR I B U E S VY.1 OR Vt-3 EXAHlNATlOH OF COATED SURFACES c c m t Keeordan I e NIA a

0 O

C 1

P a i n t B l i s t e r i n g a.

n Q

U

=

o Patnt Flaking o r Peeling IJ 0

D f s c o l oration u

Erosion a

0 0

VT-1 n V I - 3 m

Cracks Ph slcal Damage or Displacement D d r i B m

0 m

Corrosion m

YT-1 OR Vi-3 EXAHIHATIOH OF NOH*COATED SURFACES BCOr lDle HIA Cracks P i tti ng W K I3 0

od 2-VT-1-u VI-J u

Arc S t r i k e s 0

Gouges' o r Dents 0

Other Surface Dlscontinuitfes D

rn n

r a

O 4 1 1 Wear a

O f scol o r a t i on U

a Excerslve Corrosion e3 Erosion 0

Other Ph sfcal Damage or Displacement 0

0 0

0 e4 QII 0

D e i r I s 0

Date:.-

Date! --

-<wD&7J NUCLEAR INSERVICE SERVICES INSPECTION DNISXON ANSEE VT 3 SUPPLEMENTAL DATA SHEET PROCEDURE YA - VT-1 1 REVISION PAGE 6

a of 29 238 Level: 2 Date:,E299

PROCEDURE YA-VT-11 NUCLEAR SERVICES DMSION 6

16 o f 29 INSERVICE INSPECTION PAGE 1-0 L/A - I WE-JJ-/JJL VT-I OR VT-3 EXAHrNATION OF NOH-COATEO SURFACES VT-1 U YI-3 U

Cracks P I t t i n g Arc Strikes Other Surface Dfscontinuitics Ph sical Damage or Displacement Wear Discoloration Excessive Corrosion Erosion Othe 0

0 0

0 0

n 0

0 Gouges or Dents 0

Deirfs 0

REMARKS

/u d

?

I 2,

//*?e 99 Seals Gaskets and 0

0 0

0 0

Wear Dama e Tears Surface Cracks Other Erosvoo REMARKS

/ u d F -3.5, //4 7-97 I

Date: //-f-p/

Date:

Date: i m

Date:,E Date:

NUCLEAR SERVICES DIVISION VT.1 OR V T - 3 EXAMINATION OF NOH-COATED SURFACES U

ecordable wn V T - 1 V I - $

Cracks 0

P i t t l n g 0

Arc Strikes 0

Gouges or Dents 0

Other Surface Oiscontinui t i e s Ph sical Oamage or Displacement 0

0 0

0 Wear Dlscoloratfon 0

Excessive Corrosion 0

0 0

Erosion Other Debs 0

REMARKS

/mu+=

d K * //*P*Yf PROCEDURE YA-VT-11 REVISION 6

VT-l/VT-3 COHTAINHENT EXAHINATION REPORT PLAHT OUTAGE 2?/ DRAWING 6202-2 REV.^

P I

EXAHIHATION CONDITIONS YT-1 Only:

Exam Aids

Description:

Resolution Check: 0 YES 0 HO Access <24: 0 YES 0 NO A n g l e >30*: 0 YES 0 NO E

/??h?f&//dMr

&%!!d/. A:/&#Tm6rJ4 md?T EXAHIHATIOH ATTRIBUTES VT-1 OR YT-3 EXAHtNATIOH OF V T - 1 U Vl-3 u

Cracks Arc Strikes Ph s i c a l Damage or Displacement Wear D i scol o r a t I on Excessi ve Corrosion Other REMARKS u K d E #

// 9 9 9 P i t t i n g 13 Gouges Other Surface o r Dents Discontlnuitlts O e h 13 U

tl 0

0 0

0 Erori on 0

0 c

c Wear Oama e ErosPon Tears Surface Cracks n

Other 0

REMARKS

//@&e &--

f 0.-

9 - P ?

/

NUCLEAR SERVICES DMSION INSERVICE INSPECTION YT-I?VT-J COHTATHHENT EXAMIHATIOH REPORT PLANT vv

~

OUTAGE 21 DRAWING 62 0 2 -2 REV. D COHPOHENT NO. & V b e / /

f & d k c SYSTEM c o n f s m - 8 4 P iP7P.F

2.

LOCATION R/3. @CY w e / / ict'ferier/

S O T ~ ~ C S ?

Exam Aids

Description:

/%fx/,.ciAp, 4 s c d e, m i r r o r JY& p r o c ~ J w r <

B O N O Y / & / / - P O VT-I tr V1-d OI)

--+j iCL* 23g 7% 2r/-

be*//

27Ue rcr3YQ

EXAHINATION CONDITIONS VT-1 Only:

Resolution Check: 0 YES 0 NO Access <24': U YES 0 NO Angle )30°:

tIl YES 0 NO

/r?T&F D U Q c..

EXAHIHATI ON ATTRI BUTES VT-I OR VT-3 EXAHINATION OF COATEO SURFACES 0

0 Cracks 0

Ph s i c a t Damage OF Olsplacement 5

0 0

Is a 0

De6ris 0

Pa1 nt B l i s t e r i n g m

0 Paint Flaking o r Pealing U

@I 0

Oiscoloration U

0 m

0 0

Corrosfon Q

Other 0

0 IIP Erosion

$e@ A REMARKS 7?+OCrcJ YA-VT-11 6

16 o f 29 PROCEDURE REVISION PAGE VT-1 OR VT-3 EXAHTNATIOH OF VT-I U VI-3 I3 Cracks P i t t i n g Arc Strikes Gouges o r Dents Other Surface O l s c o n t i n u f t l t s Ph s i c a l Oamagc or Displacement D e h s Hear Of scol ora t i o n Excessive Corrosion Erosion Other NOH-COATEO SURFACES Accept Kecozable 9 0

e 5

a 0

a 0

0 p11 0

110 0

0 0

81 0

0 0

U O

e B

O 0

P 0

0 O

m O

m 0

a Seals Gaskets and Moisture Barrfers v-01 O

0 a

0 a

0 n

0 N?A

-a-m rer D Cracks Year Oama e Erosi'on Tears Surface other

m YES o HO Level:

Date: /.7-9-S9 Date:

Date: r q c

NUCLEAR SERVICES DIVISION PROCEDURE Y A - V T - 1 1 REVISION 6

8 o f 29 INSERVICE INSPECTION PAGE I

yA - /de-- Y7=/45 VT 3

SUPPLEMENTAL DATA SHEET 238 Level:

Date: )-+Cry Date:

IS1 Coordinato Date: ts' ibutes s h a l l have evaluatfon data attached.

ANII (Optional I I V ~ K P Date:

QA (Optional 1

- 1 Date :

FORM 1

SKETCH -

238 1

SUPFLWEHTAL DATA SHEET ATTACHEO: 0 YES [B KO I

Date:

Date:

Dete:

oate:

Dace:

Y A - V T - 1 1 6

16 o f 29 PROCEDURE REVISION NUCLEAR SERVICES DMSION INSERVICE INSPECTION PAGE VT-1 OR VT-3 EXAHIHATIOH OF NOH-COATED SURFACES v r - m V I - 3 u AcCgept Hecogable Cracks 0

Pittfng 0

Arc Striker ED Gouges o r Dents I

0 e3 Other Surface Ditcontlnultfes I

0 0

Ph sics1 Damage or Displacement QI 0

Cl I

0 0

O Ddri s Wear ff 0

D I scolora t f on 0

I Excessive Corrorfon 0

I CI Erosion 110

, c I 0

Other 0

0

@I E

n Seals Gaskets and Hoisture Barriers y

p t

necorddble !f/A

-E-Eros? on 0

0 Ip1 3

Wear o

Oama e 0

0 fears 0

Surface Cracks 0

0 Other a

4 REMARKS--

yA -/LJE-L/T-/&

VT 1

SUPPLEMENTAL DATA SHEET NUCLEAR SERVICES DrVISION INSERWCE INSPECTION EXYINER Level:

Date:

Cog, Eng./E Oa te:

IS1 Coordin Date: &dr NOTE: Accepted tached.

PROCEDURE REVISION YA-VT-11 PAGE 6

8 of 29 QA (Optional 1 Date:

A N I 1 (Optional 1 Date: lJ-z'?J (6 P4 FORM 1

- 2