ML20205Q663

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Rev 0 to Maint & Insp Procedure Mi 5, Procedure for Confirming Upset Threads for Rigid Sway Struts for Texas Utils Svcs,Inc Project (Struts Not Installed). Related Documentation Encl
ML20205Q663
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 10/16/1980
From:
NPS INDUSTRIES, INC.
To:
Shared Package
ML20205Q559 List:
References
FOIA-85-59 MI-#5, NUDOCS 8606020316
Download: ML20205Q663 (8)
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Text

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'nps npsIAEJustries InC# N-Maintenance & ,

Revision No.

Title:

Inspection 0 PROCEDURE FOR CONFIRMING UICET THREADS No. MT nc; FOR RIGID SWAY STRUTS FOR T:SI PROJECT Date: (STRUTS NOT INSTALLID) Page 1 of 1 10/16/80 m.

1.0 PUP. POSE

-j.G[4' t gg To verify that the sway strut threads are upset, and i de measurements for verification of MI #3.

2.0 SCOPE This procedure is intended for use on TU;I CPSES Project Sway Struts shipped prior to October 20, 1980, which have not been installed. (Installed struts will be verified using MI #3.)

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3.0 ATTACHMENTS 3 -

u ; tJt Cn Y. t C('in,g fr in i j'j,;3 Table 1 - Sway Strut Eye Rod Size ( Attachment 1)

MI #5 Worksheet (Attachment 2) f9 {#w Q M $f4g,. rpQ.y

.4 %.)'! *-*  ?'$ j N 4.0 PROCEDURE -

  1. -a 4.1 Locate support and record mark number, detprmine ard ed sway strut size by measuring eye ror! and determine and record whether eye rod is forged or fabricated type.

(See Table 1) 4.2 Attempt to back out the eye rod. If eye rod can be fbily unscrewed, the eye rod threaa ir not. upset. If not, it is upset. Record the condition,' upset or not upset.

4.3 If the eye rod thread is not upset, prior to its reinsertion, measure and record the L dimension, left and right eye' rod

~

length, and E dimension (each side if fabricated) . (See Table 1.) , Record measurements on MI #5 worksheet.

4.3.1 Upset the eye rod per PMI 3.1.1 (if coupling nut is not welded to the pipe) or PHI 3.1.2 (if coupling nut is welded to the pipe) and verify upset as described in 4.2 above.

4.4 After the eye rod upset is verifi-;. ty attempted removal, stamp the eye rod with a 1/4" Tive-pcinted star and record {

this fact.

45 Sign and date the record on MI #5 vo.4: sheet.

F0.A-85-59 0

8606020316 860521 -

PDR FOIA GARDE 85-59 PDR .

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. , Dated 10/ 16/80

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.. .. .. Attach =Lnt. 1

, 7,3tg 3 4T/ /: .y/y' . l SWAY STRUT EYE ROD SIZE

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STRUT SIZE EYE ROD SIZE TYPES 06 3/4" - UNC Forged and Fabricated 08 1" - UNC . Forged and Fabricated

'10 1-1/8" - UNC Forged and Fabricated 12 1-1/4" - UNC Forged 14 1-3/4" - UNC Forged and Fabricated 20 2-1/2" - UNC Fabricated .

24 3" - UNC Fabricated 36 4-1/2" - 4UN Fabricated T

IFORMAT10X SWAY STRUT MEASUREMENTS C:~' ~ Men FORGED L m

[r.s o.,iti+,i.i -

f 'l'l'l'l';';$'P,' f QV7' ' ' ' pp

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c Left  ; 4 Right, 7 Eye Rod Eye Rod l Length Length l 1

FABRICATED i L _

E t_ E

  • A m __ _ . . - - - _,e i D F.~Ir f rit e lillI t ti -

_ -[ 3- 4 I t t i' t !! t i ti l . a 8 9.'

D bi __. .bj-

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__ , N $

Left ) 'T RiEht >

Eye Rod Eye Rod Length ' Length t

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- - ARMS I '., Figure 16.1-1 INDEXED.'

BROWN & ROOT, Ih,TE:

QA RECORD Quality Assurance Department NCR N0. M-2507 R. 2 Nonconfomance Report (NCR)

CPSES-35-1195 PAGE / 0F jJs I

' DRAW ING/ IDENTIFICATION TAG /ID NUMBER ,

LOCATION OR ELEVATION RIR N0.

  • See below
  • See below l, Fab Shop lN/A

' NONCONFORMING CONDITION NF-3271.5(b) TREND

' OClNENT VIOLATED:

D NF-4711 REV. _

PARA. CATEGORY M-19

  • CC-1-028-029-S33R, E -J 1 Q Q Fh d} nd SW-1-004-009-A33R It was found that spherical bearing adjustable ends could be completely removed from the strut body. Threads on the adjustable ends were not upset in order to prevent ends from being removed. Also there are no sight holes in the strut bodies to determine thread engagement.
Revision 1

Generic - Numerous struts installed without sight holes or upset threads.

Thread engagement between body and eye rod assembly is indeterminate.

Revision 2: Final disposition.

Hold tag applied [ h Tt' PORTED BY: DATE: REVIEW

  • P V ATE:jf T IME:

L. W. Mansfield 9/18/80 _ m/, , 9 7 /Ao /,3o g/rf.

4 DISPOSITION RESPONSIBILITY: DISP 05IpN ASSIGhED TO: TAR tid. : ASMt CODt ITEM:

XX Yes No D. C. Frankun DIS POSIT ION :

REWORK REPAIR XX* USE AS IS XX* SC3AP RETURN TO VENDOR Partial disposition:

Verify all NPSI sway struts not yet installed in accordance with CP-CPM-9.11.

Supports already installed will be H OA RECORD

[' ptly. .

RTN, CA REVIEW i See attached for final disposit' L C C.OPY cm#/.29-//

W.'L FILE NO. l

PPRV ,0f?"

II)ob 80  ! <- M /h

%"Um C NG/IN F TION:

i,#le K Jk" 9 C DATE: .

sw/ /-24'2/ I wm m

<A l A F0lA-85-59 exem y "

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, g *g .,y f / lb Final disposition to h*#

NCR M-2507

  • Verify and either "use as is" or reoair as requir,ed.

Struts not installed - Verify per NPS Procedure MI-5, Revision 0, transmitted by NPSI-12-1053 dated 10/23/80.

Struts installed - Verify per NPS Procedure MI-3, Revision 0, transmitted by NPSI-12-1009 dated 10/2/80.

If threads are shown to be not upset they shall be upset as follows:

1. Coupling nut welded to pipe - upset per NPSI Procedure PMI-3.1.2 transmitted by NPSI-12-1052 dated 10/23/80.
2. Coupling nut not welded to pipe - upset per NPSI Procedure PMI-3.1.1 trans-mitted by NPSI-12-1055 dated 10/23/80.

Above to be performed by NPSI personnel at the CPSES site under the auspices of their OA program.

All sway struts shipped from NPSI facilities on or after 10/20/80 will be identified with a k" five-pointed star stamp on each end to indicate verifi--

cation of thread upset.

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E08MATiON C-tj[4{.

PPRV 4 L

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nps industn.es. inc. a -

onehortnenplazo l Cp$, secoucus.newJersey07094 201-865-6550 telex 14-1435

. October 23, 1980 NPSI-12-1053 Texas Utilities Services, Inc.

P.O. Box 1002

- Glen Rose, Texas 76043 4-#

Attention: J.T. Merritt, Jr./R.T. Wolantejus N0y

Subject:

Texas Utilities Gen. Co. p O Comanche Peak Stm. Elec. Sta. /g86 Units 1 and 2 -(M Purchase Order No. CP0046 A.1 k.,9 7

Subject:

(MI No. 5) Procedure for Confirming Upset Threads for R161d Sway Struts for TUSI Project (Struts not Inse,alled)

Ref.: NPSI-12-1016, TWX-12,489 NPSI-12-1052, NPSI-12-0988 Gentlemen:

NPS Industries. is transmitting ~ to TUSI (MI No. 5, Rev. 0) Procedur e for Confirming Upset Threads for Rigid Sway Stmts for- TUSI Project (Struts not Installed) for your use.

If I can be of any -further assistance, please do not hesitate to contact me.

Very truly yours, NPS INDUSTRIES, INC.

,f4 W-.s+.

Herman W. D' .

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HUD:rms

-s 3 Attachments: (1) 4 pages [e {( gh,i a.]g. d

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cc: H.R. Rock, G&H 2L b#

D.C. Frankum, B&R 1L (I J.T. Herritt, TUSI OL,1L,1A R.E. Holloway, G&H 1L J. Oliver, NPSI @ TUSI 1L

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npsindustries ino. "

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MAINTENANCE & INSPECTION h6 3

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. MI No. Dated Revisicn No.

10/16/80 o 5

PROCEDURE FOR CONFIRMING UPSET THREADS TITL'E: FOR RIGID SWAY STRUTS FOR TUSI PROJECT (STRUT'S NOT INSTALLED)

SCOPE OF:

7 LNFORMATLON COPY 1

)PRV APP 30'/AL SIGNATURES l

Original Issue Rev.1 Rev.2 Rev.3 I Author . /d Pc f/c Approved N p,p i D 22 [O ,

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one noanon sozo secoucus.new Jersey 07094 pp,fafJ5~ k 201865 6550 tc4ex 14-1435

, October 2, 1980 NPSI-12-1009 Texas Utilities Services, Inc.

P.O. Box 1002 ,.,

Glen Rose, Texas 76043 ... . .

Attention: J.T. Merritt, Jr./R.T. Wolantejus OI

Subject:

Texas Utilities Gen. Co. /y O Comanche Peak Stm. Elec. Sta. 4 Units 1 and 2 g'49 P.O. No. CP0046A.1

Subject:

Procedure for confiming Full Thread Engagement via eyerod measurement for Rigid Sway Struts Ref.: 'IE,48 - - - " ~ ~ ~ ~ ~ ' ' '

Gentlemen:

We are transmitting herewith NPS Industries MI-3 Dev. O

" Procedure for confir=ing full thread engagament via cye-rod measurement for rigid sway struts".

es This procedure provides means for confiming full engar ment by taking simple direct measurements. It is designed to t te con-servative in that it is based on an extra 1" for each f .rged eyerod and li" for each fabricated eyerod (based upon n ~:linal dimensions) past full engagement for accepting a given condition. g These extra allowances allow for considerably more than the tolerances in the parts and therefore make the procedure conserv-ative.

It should be noted that if the procedure does not confim full engagement for a pirticular strut, there probably still is full engagement and further inspection should be perfomed to deter-mine its full engagement.

If NPSI can be of any further assistance, please do not hesitate to contact us.

i Very truly yours, W F 0 P M. .jI .;

NPS Industries, Inc. .

r4 *,Q V;1oa 9'oL;J 3 Herman W. D'Errico O Project Manager F HWD:pmr m Attachments: 3 pages cc: H.R. Rock, C&H 2L J.T. Merritt, TUSI OL, IL, 2A D.C. Frankum,BaR 1L [R.E.Holloway,G&HIL '

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