ML19256F651

Shop Insp Procedure for Air Lock Doors,Revision 0

ML19256F651
Person / Time
Site:	Mcguire, McGuire
Issue date:	10/10/1979
From:	W.J. WOOLLEY CO. (SUBS. OF BISHOPRIC, INC.)
To:
Shared Package
ML19256F650	List: ML19256F649 ML19256F651
References
PROC-791010, NUDOCS 7912190713
Download: ML19256F651 (8)

Text

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W.J.WO0lley00. itt chment ,1 McCUIRE AIR LOCK DOORS SHOP INSPECTION PROCEDURE REVISION 0, 10/10/79 1.0 SCOPE This procedure is intended for use on Personnel Air Lock Doors for McGuire Nuclear Station Units 1 and 2.

2.0 PURPOSE Inspection of drilled and tapped holes in door seal plates.

3.0 PROCEDURE 3.1 Identification 3.1.1 Each hole for each door has a unique identification

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as shown on drawings 36972 through 36979.

3.1.2 A map is included on each of the above drawings. It is to be completed with the appropriate measurements as evidence that each inspection stop has been completed.

3.2 Depth 3.2.1 Renove the inflatable seals and keeper bars.

3.2.2 A depth gauge with a 60* included angle pointed plunger shall be used.

3.2.3 The depth of each hole for the outer seal row A and the inner seal row A shall be measured and recorded on the map. Based on the thickness of the door plate and the depth of the hole, taking into account tolerances, those that are determined to be drilled through shall be rejected.

3.3 Thread Quality 3.3.1 A "Go - No Go" type thread gauge to measure a Class 3 threaded hole shall be used.

3.3.2 The threaded gauge shall be screwed into each hole.

The "Go" portion should go in to a minicum depth of 1/2 inch. The "No-Go" portion should not be able to be screwed in. Those holes that do not meet the above criteria shall be rejected.

3.3.3 An attempt shall be nade to correct rejected threads by running a tap into the hole. The thread gauge

" test procedure should then be repeated.

1626 133 7912190 3g3

WJ.Woolley Co.

McCUIRE AIR LOCK DOORS

SIOP INSPECTION PROCEDURE REVISION 0, 10/10/79 3.0 PRECEDURE (continued) 3.4 Angularity The angularity of each hole shall be determined with the thread gauge in the hole. The counter line of the hole shall be 90* I *3 with the surface of the plate or the tangent of the curve. The maximum angle should be recorded on the map. Those holes that are off by more than 3* shall be rejected.

3.5 Documentation 3.5.1 The map shall bear the signature of the inspector (s) and dates.

3.5.2 The sign-off may be performed for each measurement recorded, or performed in groups of measurements made by each inspector. If one inspector performed all the inspections only one signature and date is required.

3.6 Repair Those holes which are rejected shall be repaired in accordance with drawings 36972 through 36979. The repairs shall be accomplished using approved welding procedures, and following the fabricators Quality Assurance Program.

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Ropair Procedure .No.

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RW!i\ SILE. -ADR u CK~0RS Reference S.O. No. 29553_n CustomerV. J. Woolley Company Date Issued 11-12-79 .-

Dravring Number Number of D' erective Payts 1 Door Piece Mark or Assembly Name Inflatable Seal Air' Inck Door

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Descriptica o'f Defect _ Improperly drilled holes for counting Air Iock Seals in Personnel Air Incks at McGuire Muclear Station. . .

. _ Location of Defect .

Sketch if Uecessary To be determined at ace'eptance'ina spection of holes (See Oper. No. -2). ,

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.ccn 9- 5-- ,..,NS M<I-cE N,W rA=T4, .

'a REPAIR PROCEDURE f.hy k

r.-m S f amn.m a UM~;;"w:Ecc,>n?NNOU7 -5

. Operation _, Description- - - - . Supv. Date Insp. Da Oper. No, - - -

Init. Init.

1. Receive and inspect for danage that may have occured dur-ing shipping, 'haridling, etc. trior' to receitst 'by ISP. _

2. Pdrform acceptance inspection as detailed below. Holes found to be unacceptable shall be circled with paintstick.

Initial and date all inspect' ions 'in the a propriate col-

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uans of the " Acceptance Inspection Report for TcGuire Doors' R.

. . A. Visual examine all holes. This examination is to det- c.[ @[

ect stripped, crossed, or torn threads. Describe any , %,,,\ 7[

defects on the " Acceptance Inspection Repprt for ,A.e, g, PcGuire Doois" under the " Visual Thread Condition"

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Heading. If a thread is foursl to be defective, procsed 3 V

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to Om rntion is. 2n. fr[ '

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Rev !!o Date By l -~ ~ ~~ Revision  ! Eng. review: Date:

i ANI/AIreview: Date:

O Production Control O shop ofrice o AnI/AI. -

0 Ins?ectio O '..' eld Floor (When Applicable)

.  % . Sheet 1 of 5 Form 18 Rev. 3-79 1626 133 . . . - _.

Repair Procedure No.

REPAIR IROCEDURE Rework Order No. N/A.

(Gontinued from Sheet Noi ) ~

Reference S.O. No. 29553-N -

Operation Description I 8"F'* Date Insp. Dat Oper. No. l Init. Init.

B. Measure the depth of outer seal Row "A" and inner seal Row "A" holes by using a pointed Varnier Dial Caliter depth gauge. Record the actual depth dinension on the

" Acceptance Inspection Report for McGuire Doors" under the " Drilled Hole Depth" Heading. If a hole is found -

to be drilled thru proceed to operation No. 2D. *-

C. All threads shall be evnM ned by using a "Go-No Go type thread g,auge.

(1) The "No-Go" portion should not be able to be screw-ed into the hole more than 4 turns. ' Record the re-sults on the "Accettance Insrection Reprt for McGuire Doors" under the "No-Go" gauze Headinst by narking a "X" in the "No" colunn if the above crit-eria is not net. If a hole does not neet the above criteria proceed.to Operation No,2D.

(2) The "Go" portion should go into the hole a nininun depthof1/2". If the above criteria is met. re-cord the results on the " Acceptance Insrection Re-port for McGuire Doors".under the "Go Gauge" Heading g by marking a "X" -in the. "Yes" column and. under the _b /

" Tapped Thread Depth" Heading by marking (>1/2").' k/

If the above criteria is.not met, retap the hole .. [h[

by using a 1/2"-13 Um Hand Tap and re-examine with C"" [

a "Go-No Go" type thread gauge as follows: Q/

(a) Th'e "Go" portion should gn i etn +% bnh n A i mininua depth of 1/2". Record the results on A ((

_ the " Acceptance Inspection Report for itGuire k f7 -

Doors" by narking a "X" in the "Yes" celunn h/

under the "G0 Gauge" Heading and by marking h[,Acvisica _

Rev Mo Date By l ~~~ Revision l Rev !!o Date By l.----...,

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• t O Production control O shop office O A. I. O Inspection O Weld Floor (Uhen Applicable) 2 d5 3

Form 18A Rev. 9-76 .

Repair Procedure No.-

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(Gontinued from Sheet !!o 2 ) Rework Order No. N/A -

Reference S.O. No ' 29553-li Oper. No. Operation Description Date

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(> '1/2") under the " Tapped Thread Depth" head-ing if the above criteria is net or by narking .

a "X" in the "No" colunn under the "Go Gauge" l Heading if the above criteria is not net pro-ceed to Operation No. 2D. ' ..

(b) The "No Go" portion should not be able to be -

screwed into the hole more than l+ turns. If

- 'the above criteria is not net, change the .

- "Ac, cept'ance Inspection Record for McGuire ,l Doors" by resoving 'the "X" in the "No" colunn under the '"No-Go Gauge" Heading and marking a "X" in the "Yes" colunn under the "No Go Giu e" .

Heading. .

D. Measure the thread ana:1e of each hole by screking the .

"Go-No Go" Gauge into'the hole and deternining the '

thread ankle -by using a protractor. Record the actual -

measurement in degrees on the "Accertance Inspection Report for IbCuire Doors" under the " Thread Angle Head- -

ing."

E. Responsible Engineering a. QA Ibrsonnel are to evaluate all Inspection Data and determine if repair is required ,

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nethod of repair, and any remarks that may be required. {N/.

Responsible Personnel will mark the above infornation o n ,

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the "Accentance Inspection Report for thCuire Doors" uMer the apurocriate Headints. ' b(/

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3. Al'1 holes which'will be plugged are to be drilled 1" Dia.

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thru by usinz a "Rotobroach"; thus renoving the existing A f[ .

inproperly dril1<1 hole. N/[

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q-_j Rev I!o Date By l Revision -

l l Rev !!o DateI

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BY Q /Revisica

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O Eroduction Control O Shop Office 0 A. I.

O Inspection O L' eld Floor (Uhen Applicable)

Forn ISA Rev. 9-76 - -

1626 l 3 Z sh**t 1 Or 5

Repair Procedure No.

. REPAIR IROCEDURE Rework Order No. N/A (Continued from Sheet No 3 )

Reference S.O. No.'29553-N Oper. No. Operation Description 6]t

• Dato [*, Dat 4 All holes which will be remired by using a thread insert arh to be drilled 17/32" Dia. x 13/16" Deep and Tapped 11/16" Deep by using a special Tap.

5 Screw threaded inserts into required hole ani set. .

6. Fron i 1/4" Dia. Round Par (SA-350-IF2) purchased on ISP P.O. # M8694, prepare required - quantities of piece #1 and piece #2 Per Drawing.. -

7. Use Xylene solvent to sufficiently clean all holes drilled

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in Oper. #3

8. Fit and weld piece #1 and piece #2 into the auprocriate hole ;

in accordance with U.P. #126 including Addenda using Quali-fled Welders and Certified E-7018 Elect: ode.

9. Crind all welds flush.

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10. Clean velds made in Operation No. 8 sufficiently for liquid Penetrant Examination.

11. Liquid Penetrant inspect welds nade in Operation No. 8 in \

accordance with ISP Procedure NDE-IC-Pri including Addenia. k */

P.T. Report Required. --

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P.T. Report No. h/ *'

(HS3 and Duke Power Personnel to review all Reports and to 8., [ -

sanple Witness sone P.T. Inspections on the entire contract). _N[

H.S.B. Review $$[

D3e Power Review A (( .

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- q,- i aAI Rev !!c'Jate By l ~~ Revision .

ll Rev !!c Date By  % / Revision I626 138 l

0 Production Control O shop orfice O A. 1. -

0 Inspection O L' eld Floor

- (When Applicable) v ion o ,.. . .o.,c .

Sheet 4 - of 5

ML Repair Procedure No.

Rework Order No. N/A .

(Continued from Sheet Noh )

Reference S.O. No. 29553-N 0

• s Operation Description Dato De Oper. No. t

12. All clanp bars to be redrilled 5/8" Dia. thru and recounter- l sun'< for proper head depth.

Assemble clanp bars to assure plugged holes are troverly l 13 located.

14. Perform Acceptance Inspection of all repired holes per "Repai.r Inspection Report for McGuire Doors" s '

15, completo " Manufacturer's Report of Welded Repairs or Alter-ations" .

LS.B. ,

16. Review all final documentation.

H.S.B. Review Duke Power Review - -

17. Prepare for shipping.

18. Ship.

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Revisios__ llRevHo Date By 4 g / Revision Rev No' Date By l

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1626 139 1

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O Shop office O A. I. O Inspection O eld Floor i O Production control (Uhen Applicable) l

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Attachment #3 1

"*f6 5 Gr 0 B l -13 UNC Thread (SA-304 Stainless Steel)

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mm Seal

>/ 7 l 4 > / - Door Plate

,/ / SA 510 Gr.70 i

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/ s A

/ / Threaded Insert IS-8 Stainless Steel

] (Combination Of Tgpe 502 And Type 304) *

• Cold Rolled Wire-Ultimate Tensile strength 200 250 Ksi.

SKeTcs 2. .~

Threaded Inse.rt Assembly i

1626 140

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