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TMI 1 Maintenance and Wl Nuclear construction o Partment Procedure No.
-.3 A25K-51512-IP3 Installation Procedure
Title:
A r*" r= f1 Page 1 of 5 Removal of Remnant of, Partially Inserted Plug From Row-Tube A-143-61 LIST'0F EFFECTIVE PAGES PAGE REV.
EFFECTIVE DATE EXHIBIT PAGE REV.
EFFECTIVE DATE 1.0 0
02/24/83 2.0 0
02/24/83 3.0
'O 02/24/83 NO ATTACHMENTS 4.0 0
02/24/83 5.0 0
02/24/83,
R E C EI V E D t/iAR 161983 G.KULL WA-ADL #
23-3 Page / Sheet
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SIC 3ATURE TITI.E/ DIVISION / DEPARTMENT DATE 3ritinater
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Job Planner 2/3.v83
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1.0 INTRODUCTION
AND SCOPE 1.1: This procedure shall govern the technique for removal of the remnants of an explosive plug in the lower tubesheet of an OTSG.
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1.2 This procedure shall be used to remove the remnants of an exploded plug in tube A-143-61. This explosive plug detonated while it was falling out of the tube.
2.0 -REFERENCES 2.1 B&W Technical Document 64-1139698-00, Removing Remnant of Partially Inserted Exploded Plug from LTS.
2.2 MCR 0215-82 R E C Ei V E D 2.3 AP 1020 p
MAR 101983 2.4 AP 1030 G.KULL 2.5 DRF /#459 (B&W FCA,3921,Rev. 0) 3//*/r2
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3.0 RESPONSIBILITIES 3.1 M&C Department is responsible for the performance of all aspects of this work.
- 3.2 ' Plant Engineering shall provide assistance a's required.
3.3 B&W Personnel will perforu the actual, plug removal.
4.0 PREREQUISITES 4.1 OTSG primary side is drained and upper and lower manway covers are removed.
4.2 Adequate lighting is available inside the lower OTSG head and tent and air supply (80 psi 0 48 SCFM min.) available to power the machi ning, tool.
4.3 All 110V AC current to tent is on ground fault.
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.e-Rev. 0 4.4 All tools and materials necessary to remove the plug remnant are available with the tooling assembled and in proper working order.
Tools to meet Class C cleanliness.
4.5. All necessary training is complete with sufficient manpower available to perform the required functions.
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4.6 The tube with the exploded plug remnant-has been identified.
4.7 Work platfom installed in "A" OTSG lower head.
4.8 ALARA and RW requirements have been satisfied.
4.9 Cold leg plugs installed, inflated and maintained in accordance with current applicable "STP" or J-leg covers installed. Drain plug installed.
5.0 SPECIAL/ SAFETY PRECAUTIONS
- 5.1 Exercise extreme care to prevent dropping tools or parts inside the OTSG or piping since such an accident will result in lengthy retrieval operations.
Use of nylon lanyards or equivalent means of positive capture is required.
5.2 Observe all applicable limits and precautions of the Radiation Protection Plan.
5.3 During performance of the liquid penetrant test, every effort is to be made to minimize the amount of liquid penetrant material left in the OTSG. This includes the following:
A.
Apply the penetrant with a brush instead of spraying.
B.
Use a teraplate or plastic cover to cover adjacent holes
- when spraying developer.
C.-
Clean remaining developer and penetrant with approved
' solvents from all accessible areas.
23-3 wp..a[;-
RECEIVED Page lSneet _ ( Of) i:mR 1 U 1923 c.'s o..A 2SX-5/E72 G. KULL
_.._.___30______ _ _._ __,___ _ _[
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4-Rev. 0
'5.4 All personnel performing the actual work described in this
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procedure, and related ones, should be thoroughly familiar with the procedures, the hanoling and operation of all special tools and materials, and all agiplicable safety precautions.
5.5_ Detailed handling, placement, operation and manner of use of all j
special tools and material shall be per the direction of the B&W task leader.
5.6 Assure that lower head cold leg covers or plugs and lower dome 1
drain plug are installed prior to any work commencing in the OTSG l
a concerning explosive plug removal.
I 5.7 The tube with the partially inserted plug shall be identified in a manner that will not interfere with the plug removal tooling.
5.8 An enclosure shall be provided around the op'ening to the steam generator (SG) to ensure that any contaminated air is contained.
This area shall be free from oil, scale, chips, wire, grease, chemicals and other foreign materials which my be detrimental to the primary system.
6.0 INSTALLATION REQUIREtENTS R E C Ei V"E D t/.AR 1619831619836.1 Properly identify tube to be worked on.
G.KULL 6.2 Center positioning jig over Tube 61 - Row 143.
6.3 Drill ~ 29/64" hole completely through remaining section of plug.
NOTE:
Be prepared for some water to fall out of tube once center of plug is drilled out. Ensure absorbent material is placed under plug.
23-3 vvA.ADi. #
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RECEIVED Rev. 0 6.4 ~ LRemove drill assembly.
MAR 161983 6.5 Tap plug hole with 1/2" -20 tap.
G.KULL 6.6 Insert 1/2" -20 drill rod through the drilled hole and position plug puller.
6.7. Using explosive plug puller, attempt to remove plug from tube end.
6.8 If plug comes out, proceed to Step 6.14.
6.9 If plug cannot be removed by using the plug removal puller, remove the plug puller.
. 6.10 Replace 29/64" drill bit with 33/64" drill bit.
6.11 Install drill assembly and drill 33/64" hole completely through remaining section of plug.
6.12 Replace 33/64" drill bit with 14mm (.5512") drill bit.
6.13 Drill 14m hole completely through remaining section of plug.
6.14 Remove plug removal equipment from OTSG head.
6.15 Remove any remaining pieces of the explosive plug. Ensure
'explosive plug retaining sleeve is removed from the tube.
6.16 Insert honing tool and clean I.D. of tube to accept an explosive pl ug.
6.17. Perform PT of tube and tube to tubesheet weld in accordance with site approved procedures to assure that the tube still provides a leak tight boundary. ' Acceptance criteria shall be no linear indications.
Q.C. shall perform visual inspection of first 2" of tube I.D. to insure that no remarkable damage was caused by the drill bit.
6.18 Refer to Explosive Plugging Procedure for further instructions.
23-3
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GENERAL PUBLIC UTILITIES -
OTSG REPAIRS DATE 3/16/83 DATE ITEM DESCRIPTION
-RESPONSIBILITY REQUIRED T
1.;
Round Robin Samples-NWT Lab J. Colitz
. Spent Fuel
. BWST
.; Decay Heat - Monthly Samples End of Month
. Ship Next Monthly Samples 3/31
- 2. - Restoration Secondary Side A.
' Temp. Chem. System 3.
Ops OTSG Status
. _ A and B OTSG Full Wet Layup 2/7
. Receive Backing Plates for "A" Upper Manway 4/1
- 4.. Post Expansion
. Felt Plug Blowing Device-Store at Reactor Bldg
. Final Freepath - Blow Plugs from Top TBD
. B&W Equipment 3/27
. B&W Proposal rnT t/e w Tel 5.
Immunol Flush System
. Receive Vyton Tubing TBD
. Revised Spec for Flushing.
T. Functions TBD
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- 6. ' Tube Plug Stabilization
.. Spec for Plugging Final Rev 9 Issue C. K. Lee -
3/15
. Resolve Plug Pulling Process Westinghouse TBD
. M&C Procedure Requirements
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IP1 Rev. 1 Stabilizer Endmilling G. Kull 3/16'
- qu IP2 Rev. O Remove tid Stabilizers G. Kull 3/16 qn IP3 Rev. 0 Removal of Remnant.
G. Kull 3/16
-c IP4 Rev. O Remove W Roll Plugs G. Kull 3/16'
'M P5 Rev. O TapereOlug Removal G. Kull TBD oA IP6.Rev.1 Stabilization and Plugging G. Kull 3/16 gen IP7 Rev. 8 Jump Pack Assenbly G. Kull TBD IP8 Rev. 0 Exp. Plugging, Lower Hd.
G. Kull 3/18
. Receive Eddy Current Templates 3/18
. Explosive Plugs en-site r 3/21 DRF ou E c14$
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OTSG REPAIRS DATF 3/16/83 DATE ITEM DESCRIPTION RESPONSIBILITY REQUIRED 7'.
Miscellaneous Items to Resolve
. Hydrogen Peroxide Tube Soak 8.
Waiting Documentation MNCR Responsibility 215-82 Plug Exploded at Wrong Area of Tube' B&W 345-82 2 Tubes Plugged Incorrectly 354-82 Documentation'for Immunol-1st Batch Eng 426-82 Wire Brush B6-1 009-83 Immunol at Cold Legs 041-83 Tube Ends Eng.
9.
Tube Endmilling
. Complete 5 Tubes on "A" A 10.
Rad Con Exposure Data (Based on SRDs) as of 3/14
. Total OTSG Exposure since 1st Blast - J78.8 Man Rem
. Total OTSG Exposure since Nov 1981 - 855.0 Man Rem 11 '.
Bubble and Drip Test Draf t Detailed Spec.
T. Reichter 3/18 Final 3/25 Cleaning of the Cold Legs atf~' "'
- 12. Anticipated Jumps Date Description Responsibility 3/16 A.- Upper Mh 6 Levin / Catalytic A - Lower -
. B - Lower pse. (inear.se )d %dY 3/16 B - Upper -
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,,f \\g GENERAL PUBLIC UTILITIES OT5G REPAIRS DATE 3/17/83 DATE ITEM DESCRIPTION RESPONSIBILITY REQUIRED-1.
Round Robin Sa'mples-NWT Lab J. Colitz
. Spent Fuel
. BWST
. Decay Heat'- Monthly. Samples End of Month
. Ship Next Monthly Samples 3/31 2.
Restoration Secondary Side A.
Temp. Chem. System
- 3.. Ops OTSG Status
. A and B OTSG Full Wet Layup 2/7
. Receive Backing Plates for "A" Upper Manway 4/1 4.
Post Expansion
. Felt Plug Blowing Device-Store at Reactor Bldg
. Final Freepath - Blow Plugs from Top TBD
. B&W Equipment 3/27
. B&W Proposal
<. Mt. Vernon Test wdlM M W
. Technique for Marking Plugs 5.
Immunol Flush System
. Revised Spec for Flushing T. Functions TBD 6.
Tube Plug Stabilization
. Spec for Plugging Final Rev 9 Issue C. K. Lee 3/15
. Resolve Plug Pulling Process Westinghouse TBD
. M&C Procedure Requirements IP1 Rev. 1 Stabilizer Endmilling G. Kull 3/16 IP2 Rev. O Remove Old Stabilizers G. Kull 3/16 IP3 Rev. O Removal of Remnant' G. Kull 3/16 IP4 Rev. O Remove W Roll Plugs G. Kull TBD IP5'Rev. 0 Tapere O lug Removal G. Kull TBD M
IP6 Rev.1 Stabilization and Plugging G. Kull 3/16 IP7 Rev. O Jump Pack Assenbly G. Kull 3/18
.IP8 Rev. 0 Exp. Plugging, Lower Hd.
G. Kull 3/18
. Receive Eddy Current Templates 3/18
. Explosive Plugs On-site 3/21 fe n m 9.
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- OTSG REPAIRS DATE 3/17/83 i
DATE ITEM DESCRIPTION RESPONSIBILITY REQUIRED 7.
Miscellaneous Items to Resolve-
-. Hydrogen Peroxide Tube Soak Mume saQ.W~e l g*a 8.
Waiting Documentation MNCR Responsibility 215-82 Plug Exploded at Wrong Area of Tube B&W 345-82 2 Tubes Plugged Incorrectly
-354-82 Documentation for Immunol-1st Batch Eng 426-82 Wire Brush B6-1 009-83 Immunol at Cold Legs 041-83 Tube Ends Eng.
9.~
Tube Endmilling
- 10. ' Rad Con Exposure Data (Based on SRDs) as of 3/14
. Total OTSG Exposure since 1st Blast - 64 8 Man Rem
-. Total OTSG Exposure since Nov 1981 - 8
.0 Man Rem
. M A 75er~
-11.
Bubble and Drip Test
. Draft Detailed Spec T. Reichter 3/18
_ yg rf Final 3/25
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- 12. Cleani of the Cold Legs
- 13. Anticipated Jumps Date Description Responsibility 3/17 A - Upper --
Levin / Catalytic A - Lower -
3/17 B - Upper -
B - Lower -
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4 GENERAL PUBLIC UTILITIES E
OTSG REPAIRS DATE 3/18/83 DATE ITEM
. DESCRIPTION RESPONSIBILITY REQUIRED 1.
Round Robin Samples-NWT Lab J. Colitz
. Spent Fuel uhe.
. BWST.
. Decay Heat - Monthly Samples End of Month
. Ship Next Monthly Samples 3/31 2.
Restoration Secondary Side A.
Temp. Chem. System 3.
Ops OTSG Status
. A and B OTSG Full Wet Layup"A" Upper Manway 2/7
. Receive Backing Plates for 4/1
- 4. -Post Expansion
. Felt Plug Blowing Device-Store at Reactor Bldg
. Final Freepath - Blow' Plugs from Top TBD
. B&W Equipment 3/27
.. B&W Proposal
. Mt. Vernon Test 3/23
.. Technique for Marking Plugs d
5.
Immunol Flush System
. Revised Spec for Flushing T. Functions TBD n
6.
Tube Plug Stabilization
. Resolve Plug Pulling Process Westinghouse TBD MAC Procedure Requirements
--o IP4 Rev. O Remove W Roll Plugs G. Kull TBD WMe IPS Rev. ;0 Tapered Plug Removal -
G. Kull TBD 6,J IP6 Rev. 2 Stabilization and Plugging G. Kull TED IP7 Rev. O Jump Pack Assembly.
G. Kull 3/18 IP8 Rev. 0 Exp. Plugging, Lower Hd.
G. Kull 3/18
. Receive Eddy Current Templates 3/18
. Explosive Plugs On-site rn o e.o 3/21 onc aA 87 isi L. S,
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W' 105 6
~41 A I
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OTSG REPAIRS DATE 3/18/83 DATE ITEM DESCRIPTION RESPONSIBILITY REQUIRED 7.
Miscellaneous Items to Resolve
. -Hydrogen Peroxide Tube Soak S
SM-8*
8.
Waiting Documentation MCR Responsibility 9 215-82 Plug Exploded at Wrong Area of Tube B&W
-'2345-82.2 Tubes Plugged Incorrectly 354-82 Documentation for Immunol-1st Batch Eng
~
426-82 Wire Brush B6-1 009-83 Immunol at Cold Legs
% 041-83 Tube Ends Eng.-
9.
Tube Endmilling
- 10. Rad Con Exposure Data (Based on SRDs) as of 3/16-l'1
. Total OTSG Exposure since 1st Blast - 687.2 Man Rem
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. Total OTSG Exposure since Nov 1981 - 863.4 Man Rem 8(A
- 11. Bubble and Drip Test Draf t Detailed Spec T. Reichter 3/18 Final 3/25
- 12. Cleaning of the Cold Legs
- 13. Anticipated Jumps Date Description Responsibility 3/18 A - Upper - A Levin / Catalytic A - Lower -
3/18 B - Upper - 9ts&-
B - Lower -
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