TGI_3819P12389A01_c0v0.pdf
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- N6264925RA024
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This Task Group Instruction (TGI) details repair work for the USS Blue Ridge (LCC-19) potable water tank system located at Commander, Fleet Activities Yokosuka. The specific scope involves repairing a vertical ladder and completing an incomplete weld on a bracket in tank 9-83-2-W, located between Frames 84 and 85, and Longitudinals 7P and 8P. The work includes removing and replacing existing fasteners with new CRES screws, nuts, and washers, and performing weld repairs on two steel brackets.
The repair project is scheduled for contractor work from January 12, 2026, to May 15, 2027. SRF-JRMC (Ship Repair Facility Japan Maintenance Activity) will provide supporting services including crane and rigging, utility services, safety inspections, gas-free inspections, and quality assurance inspections. The work stems from a Condition Report from Sumitomo Heavy Industries dated June 26, 2021, and requires Level II cleaning for the piping system/equipment. The potable water tank has an 18,531-gallon capacity, and post-repair chlorination and bacteriological testing by a qualified Japanese laboratory will be conducted and documented.
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FOUO
WebAIM Short Form TASK GROUP INSTRUCTION
23-AUG-2024 1034
20.14.15.0.8993 (August 2024) ICN: 3819P12389 KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: POT WTR 9-83-2-W TK A 0 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 12314
CU PHASE TITLE: F/O - REPAIR VERTICAL LADDER AND INCOMPLETE WELD ON BRACKET IN 9-83-2-W
WORK CERTIFICATION SIGNATURES: DLs
COMPLETION OF WORK REVIEW: BADGE NO: SHOP/CODE: PHONE: DATE:
RECORDS REVIEW: BADGE NO: SHOP/CODE: PHONE: DATE:
FOUO Pg 1 of 5
ES01NP95 * ES01NP96
PREPARING ACTIVITY: STATUS: APP WORKING STATUS:
PREPARED BY: CODE: PHONE: DATE:
TAKEUCHI, NORIYUKI 231B 3152439983 30-NOV-2023
APPROVED BY: CODE: PHONE: DATE:
TAKAGI, RYOUTA 231B 3152434502 30-NOV-2023
CONCURRED BY: CODE: PHONE: DATE:
REASON FOR WORK/NEED FOR CHANGE:
JCN:
ES01-NP95 * ES01-NP96
SPECIAL REQUIREMENTS:
CU PHASE DESCRIPTION:
ZONE MANAGER: ZONE: COMPARTMENT: LEVEL: FRAME: SIDE:
YAGINUMA, TAKEHIDE 9-83-2-W U
JOB SUMMARY ID: TOT MAN HR.: TOT DUR: TOT JML COST: PLANNING ACCEPTANCE:
123A1489
1. SCOPE/PURPOSE:
1.1 Title: Vertical Ladder and Incomplete Weld on Bracket in 9-83-2-W; repair
1.2 Location of Work:
1.2.1 Portable Water Tank (9-83-2-W)
1.2.2 Fire Room (8-76-0-E)
1.3 Identification:
1.3.1 Quantity (One EA), Potable Water Tank
Tank No.: 9-83-2-W Capacity: 18,531 Gallons
TGI Short Form
23-AUG-2024 1034
20.14.15.0.8993 (August 2024) (Continued) ICN: 3819P12389 KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: POT WTR 9-83-2-W TK A 0 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 12314
CU PHASE TITLE: F/O - REPAIR VERTICAL LADDER AND INCOMPLETE WELD ON BRACKET IN 9-83-2-W
FOUO Pg 2 of 5
CU PHASE DESCRIPTION (Cont.)
1.3.2 Quantity (One EA), Vertical Ladder in 9-83-2-W, between Frames 84 and 85, and Longitudinals 7P and 8P
Remarks: See Sketch Enclosure-01 for location detail
1.3.3 Quantity (2 EA), Bracket for Vertical Ladder in 9-83-2-W, between Frames 84 and 85, and Longitudinals 7P and 8P
Base Material: Steel Remarks: See Sheet 6 Detail 6-D of Ref. No. 4 for detail and Sketch Enclosure-01 for location detail
1.4 Security Classification: None.
1.5 Initial Condition: None.
1.6 Contractor work start date: 1/12/2026
1.7 Contractor work completion date: 5/15/2027
2. PROCEDURE:
2.1 Accomplish the requirements of 099-902YO of Ref. No. 2 for each tank listed in 1.3.1.
2.1.1 Accomplish the requirements of 009-107 of Ref. No. One.
2.1.1.1 Accomplish the requirements of 009-09 of Ref. No. One.
2.1.1.2 Ensure General Cleaning must be Level II.
2.2 Remove existing and install new fasteners of each existing vertical ladder listed in 1.3.2 in accordance with Ref. No. 3, using new CRES screws conforming to MIL-DTL-1222, Type I, Grade 316, new nuts conforming to MIL-DTL-1222, Type I, Grade 316, and new washers conforming to NASM35338, CRES 300 series.
2.3 Accomplish weld repair of incomplete weld on each existing bracket listed in 1.3.3 in accordance with Ref. No. 4, using Ref.
No. 5 for guidance.
2.3.1 Accomplish the requirements of 009-12 of Ref. No. One, including Table 2, Column(s) A, Lines One through 7.
2.4 Accomplish the requirements of 009-87 of Ref. No. One.
2.4.1 Accomplish the requirements of 009-09 of Ref. No. One, for chlorination and bacteriological tests. Analysis and testing conducted by a qualified Japanese laboratory (accredited by ISO 17025 or equal) are authorized by the SUPERVISOR.
2.4.2 Record results of chlorination and bacteriological tests on a Laboratory Analysis Record(s) and DD Form 686, and submit one legible copy, in hard copy or approved transferrable media, of completed record(s) and form(s) to the SUPERVISOR.
2.5 Accomplish the requirements of 009-32 of Ref. No. One for each new and disturbed surface.
2.6 Notes:
2.6.1 Planner: Code 231B N. Takeuchi, 243-9983
23-AUG-2024 1034
20.14.15.0.8993 (August 2024) (Continued) ICN: 3819P12389 KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: POT WTR 9-83-2-W TK A 0 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 12314
CU PHASE TITLE: F/O - REPAIR VERTICAL LADDER AND INCOMPLETE WELD ON BRACKET IN 9-83-2-W
FOUO Pg 3 of 5
CU PHASE DESCRIPTION (Cont.)
2.6.2 Work Integration Manager (WIM): Code 333 T. Yaginuma, 080-5419-0598
2.6.3 SRF-JRMC Code 134 will provide laboratory analysis and test service for disinfectant solution used for portable water tank when requested by the WIM Code 333.
2.6.4 This TGI is in response to Condition Report No. NNR01072-3-02 from Sumitomo Heavy Industries, Ltd. Dated 26 JUN 2021.
2.6.5 JCNs ES01-NP95 and ES01-NP96 are related to this TGI.
2.7 Government Furnished Material (GFM): None.
2.8 SRF-JRMC will provide the following service work: (TGI No. 3819P12389S02).
2.8.1 [C740] Crane and crane rigging service.
2.8.2 [X99E] Utility service, electrical.
2.8.3 [X99M] Utility service, including low pressure air supply, water supply, and steam supply.
2.8.4 [C106.1] Safety inspection for SRF-JRMC employees.
2.8.5 [C106.2] Gas free inspection for SRF-JRMC employees.
2.8.6 [C133] QA inspection for (G) symbol(s).
23-AUG-2024 1034
20.14.15.0.8993 (August 2024) (Continued) ICN: 3819P12389 KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: POT WTR 9-83-2-W TK A 0 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 12314
CU PHASE TITLE: F/O - REPAIR VERTICAL LADDER AND INCOMPLETE WELD ON BRACKET IN 9-83-2-W
FOUO Pg 4 of 5
OTHER SPECIAL REQUIREMENTS:
CLEANLINESS FOR PIPING SYSTEM/EQUIPMENT LEVEL II
Ref.
No.
Document/Drawing Number DOCUMENT/DRAWING TITLE REV
CHG
NO.
CPY
REQ PARAGRAPH SECT PG CHPT
1 NSI FY-25 NAVSEA Standard Items - ORG N 2 LI FY-25 Local Standard Items - ORG N
3 DWG 805-1360280 LADDERS, VERTICAL
ASSEMBLIES & DETAILS
(ALUMINUM)
H N
4 DWG 603-2491411 LADDERS VERTICAL 5 TH &
BEL
G Y 5A, 5 DWG 101-2491012 CVK & Shell Long AFT FR 51 1/2
L Y ALL
TASK NAME / TASK DESCRIPTION
SHOP/
TSD TS
SF
WC
CREW
# MHRS RWRK
2.1 LBR HRs, QA HRs 22/KE PC N
2.2 SFTR HRs 22/KE PC N
2.3 WELD HRs, PNTR HRs, QA HRs 22/KE PC N
2.4 LBR HRs, QA HRs 22/KE PC N
2.5 PNTR HRs, QA HRs 22/KE PC N
Dewatering and Cleaning Work CFM: $ for marine chemist cost, tank watch cost, chemical, laboratory analysis cost, gaskets, fasteners, and misc such as other consumable.
22/MQ CS N
Structural Work CFM: $ for all paints, thinner, fire watch cost, tank watch cost, fasteners, and misc such as electrode, covering materials, and other consumable.
22/MQ CS N
Process Funding Document. 10/CT OM N
MATERIAL LIST
ITEM
NO.
PC
NO.
REF
NO.
M
C DESCRIPTION
STOCK
NUMBER
GENERIC
MATL
TYPE LVL QA
HAZ
MAT
DOC
NO.
QTY
REQD/
UNIT
QTY
USED/
UNIT
ATTACHMENT LIST
TITLE FILE NAME SAVED DATE
MATERIAL REFERENCES
REF
NO.
DOCUMENT/DRAWING NUMBER DOCUMENT/DRAWING TITLE
REV
ICN: 3819P12389 KEY OP: A01
23-AUG-2024 1034
20.14.15.0.8993 (August 2024) (Continued) ICN: 3819P12389 KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: POT WTR 9-83-2-W TK A 0 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 12314
CU PHASE TITLE: F/O - REPAIR VERTICAL LADDER AND INCOMPLETE WELD ON BRACKET IN 9-83-2-W
FOUO Pg 5 of 5
ENCLOSURE-01 3819P12389A01-Sketch.pdf 30-NOV-2023 0000
Noriyuki.Takeuchi.ja Text Box
LOCATION DETAIL FOR REPAIR VERTICAL LADDER AND BRACKET
Noriyuki.Takeuchi.ja_1 Polygon
Noriyuki.Takeuchi.ja_2 Rectangle
Noriyuki.Takeuchi.ja_3 Rectangle
Noriyuki.Takeuchi.ja_4 Text Box
PLAN VIEW
INNER BOTTOM, FR 76-97, PORT
Noriyuki.Takeuchi.ja_5 Polygonal Line
Noriyuki.Takeuchi.ja_6 Polygonal Line
Noriyuki.Takeuchi.ja_7 Text Box
SEE DET-1
Noriyuki.Takeuchi.ja_8 Polygonal Line
Noriyuki.Takeuchi.ja_9 Line
Noriyuki.Takeuchi.ja_10 Text Box
DET-1
VERTICAL LADDER, LKG INBD
Noriyuki.Takeuchi.ja_11 Text Box
DET-2
VERTICAL LADDER, LKG INBD
Noriyuki.Takeuchi.ja_12 Polygonal Line
Noriyuki.Takeuchi.ja_13 Polygonal Line
Noriyuki.Takeuchi.ja_14 Text Box
DET
Noriyuki.Takeuchi.ja_15 Text Box -2
Noriyuki.Takeuchi.ja_16 Line
Noriyuki.Takeuchi.ja_17 Line
Noriyuki.Takeuchi.ja_18 Polygonal Line
Noriyuki.Takeuchi.ja_19 Polygonal Line
Noriyuki.Takeuchi.ja_20 Oval
Noriyuki.Takeuchi.ja_21 Oval
Noriyuki.Takeuchi.ja_22 Text Box
INCOMPLETE WELD
Noriyuki.Takeuchi.ja_23 Text Box
MISSING & LOOSENED FASTENERS
Noriyuki.Takeuchi.ja_24 Line
Noriyuki.Takeuchi.ja_25 Line
Noriyuki.Takeuchi.ja_26 Line
Noriyuki.Takeuchi.ja_27 Line
Noriyuki.Takeuchi.ja_28 Text Box
SKETCH
ENCLOSURE-01
Noriyuki.Takeuchi.ja_29 Text Box 3819P12389A01
Noriyuki.Takeuchi.ja_30 Text Box
SHEET 1 OF 1
Noriyuki.Takeuchi.ja_31 Line
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