TGI_3819P22114A03_c2v2.pdf
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- N6264925RA059
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This document is a Task Group Instruction (TGI) for repairing a crack on the 1A Boiler Casing of the USS Blue Ridge (LCC-19), located in the Fire Room at Commander, Fleet Activities Yokosuka. The specific repair involves conducting visual and liquid penetrant inspections to identify crack ends, drilling 1/8-inch diameter stop holes, grinding out cracks, and performing weld repairs on the boiler's front inner casing, which is made of carbon steel (ASTM A-36, 0.1875 inch thick). The boiler, manufactured by Foster Wheeler Corp, operates at a design pressure of 705 PSIG and a maximum operating pressure of 655 PSIG.
The task is scheduled for execution between January 12, 2026, and May 15, 2027, with SRF-JRMC providing supporting services including crane and rigging, utility services (electrical, air, water, and steam), safety inspections, gas-free inspections, and quality assurance/non-destructive testing (NDT) inspections. The repair also requires special consideration for potential asbestos and lead hazards. Material requirements include machine bolts, nuts, washers, glass cloth, fiberglass insulation, and lagging hooks, with specific stock numbers and quantities listed in the document's material list.
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FOUO
WebAIM Short Form TASK GROUP INSTRUCTION
03-MAR-2025 1407
20.14.15.2.9020 (September 2024) ICN: 3819P22114 KeyOp: A03
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: 1A BOILER BO A 6 2/2
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 22111
CU PHASE TITLE: *(D11-1) F/O - REPAIR CRACK ON 1A BOILER CASING
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
EM02L194
PREPARING ACTIVITY: STATUS: APP WORKING STATUS:
PREPARED BY: CODE: PHONE: DATE:
TAKEMOTO, HIROTAKA 234 3152434479 07-FEB-2025
APPROVED BY: CODE: PHONE: DATE:
HARADA, HIDEO 234 3152435176 28-FEB-2025
CONCURRED BY: CODE: PHONE: DATE:
REASON FOR WORK/NEED FOR CHANGE:
JCN:
EM02-L194
SPECIAL REQUIREMENTS:
CU PHASE DESCRIPTION:
ZONE MANAGER: ZONE: COMPARTMENT: LEVEL: FRAME: SIDE:
TAKAHASHI, YASUHIKO 8-76-0-E U
JOB SUMMARY ID: TOT MAN HR.: TOT DUR: TOT JML COST: PLANNING ACCEPTANCE:
221A1114
1. SCOPE/PURPOSE:
1.1 Title: Crack of Inner Casing of 1A Boiler; repair
1.2 Location of Work:
1.2.1 Fire Room (8-76-0-E)
1.3.1 Quantity (One EA), Boiler, Main Propulsion, 1A
Mfr: Foster Wheeler Corp Mfr ID: N/A Design Pressure: 705 PSIG Max Operating Pressure: 655 PSIG
APL: 021550096
1.3.1.1 Quantity (One AY), Front Inner Casing, 1A Boiler
Casing Material: Carbon Steel, ASTM A-36, 0.1875 Inch THK
TGI Short Form
03-MAR-2025 1407
20.14.15.2.9020 (September 2024) (Continued) ICN: 3819P22114 KeyOp: A03
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: 1A BOILER BO A 6 2/2
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 22111
CU PHASE TITLE: *(D11-1) F/O - REPAIR CRACK ON 1A BOILER CASING
FOUO Pg 2 of 5
CU PHASE DESCRIPTION (Cont.)
Remarks: See Sketch Encosure-01 for details.
1.4 Security Classification: None.
1.5 Initial Condition:
1.5.1 Potential Asbestos Hazard
1.5.2 Potential Lead Hazard
1.6 Contractor Start Date: 1/12/2026
1.7 Contractor Work Completion Date: 5/15/2027
2. PROCEDURE:
2.1 Repair each crack on the casing listed in 1.3.1.1, using Ref. No. 3 and Enclosure-01 for guidance.
2.1.1 Accomplish visual inspection and liquid penetrant inspection (PT) to identify each crack end.
2.1.2 Drill 1/8 inch diameter stop hole(s) on end of crack and weld repair.
2.1.3 Grind out each crack prior to weld repair.
2.1.4 Accomplish the requirements of 009-12 of Ref. No. One, including Table 2, Column A, Lines One through 7.
2.2 Accomplish the requirements of 009-32 of Ref. No. One for each new and disturbed surface.
2.3 Notes:
2.3.1 Planner: Code 234 H.Takemoto, 243-4479
2.3.2 Work Integration Manager (WIM): Code 333 T. Yaginuma, 080-5419-0598
2.3.3 JCN EM02-L194 is related to this TGI.
2.3.4 This TGI is response to Boiler Inspection and Repair Management Information System (BIRMIS) for 1A Boiler report dated 17 OCT 2024, Line item “D11-1”.
2.3.5 Removal and installation each boiler outer casing and interior lagging for Asbestos Contain Material have been covered by TGI No. 3819P22103A01.
2.3.6 Removal and installation each boiler outer casing exterior lagging have been covered by TGI No. 3819P22101A01 and 3819P22102A01.
2.4 Government Furnished Material (GFM):
2.4.1 SRF-JRMC will provide GFM listed in the Material List.
03-MAR-2025 1407
20.14.15.2.9020 (September 2024) (Continued) ICN: 3819P22114 KeyOp: A03
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: 1A BOILER BO A 6 2/2
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 22111
CU PHASE TITLE: *(D11-1) F/O - REPAIR CRACK ON 1A BOILER CASING
FOUO Pg 3 of 5
CU PHASE DESCRIPTION (Cont.)
2.5 SRF-JRMC will provide the following service work: (TGI No: 3819P22114S04)
2.5.1 [C740] Crane and crane rigging service.
2.5.2 [X99E] Provide utility service, electrical.
2.5.3 [X99M] Provide utility service, including low pressure air supply, water supply, and steam supply.
2.5.4 [C106.1] Provide safety inspection for SRF-JRMC employees.
2.5.5 [C106.2] Provide gas free inspection for SRF-JRMC employees.
2.5.6 [C133] Provide QA inspection for (G) symbols.
2.5.7 [C135] Provide NDT inspection for (G) symbol(s).
03-MAR-2025 1407
20.14.15.2.9020 (September 2024) (Continued) ICN: 3819P22114 KeyOp: A03
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: 1A BOILER BO A 6 2/2
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 22111
CU PHASE TITLE: *(D11-1) F/O - REPAIR CRACK ON 1A BOILER CASING
FOUO Pg 4 of 5
OTHER SPECIAL REQUIREMENTS:
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 TM S9086-GY-STM-
010/CH-221
Boilers 8 N
TASK NAME / TASK DESCRIPTION
SHOP/
TSD TS
SF
WC
CREW
# MHRS RWRK
2.1 BLRM HRs, INSL HRs, WELD HRs, QA HRs, PNTR HRs 22/KE PC N
2.2 PNTR HRs , QA HRs 22/KE PC N
CFM for firewatch cost, welding rod, marine chemist cost, PT inspection cost, asbestos sampler and analysis cost, and MISC such as covering material, plastic bags, and etc.
22/MQ CS N
Process Funding Document 10/CT OM N
Version-1: Revise incorrect reference sequence C234 H.HARADA 2/14/2025 -/-/N
/ V-01 N
Version-2: Revise incorrect initial condition C234 H.HARADA 2/27/2025 -/-/N
/ V-02 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
001 M BOLT,MACHINE, ORDERED
FOR KTR
ORIG: C234 H.TAKEMOTO 243-
9B 5306 002083988 NA 4 N 50305189
400/EA
002 M NUT,PLAIN,HEXAGON,
ORDERED FOR KTR
C234 H.TAKEMOTO 243-4479
9B 5310 010825343 NA 4 N 50305191
400/EA
003 M WASHER,FLAT, ORDERED
FOR KTR
C234 H.TAKEMOTO 243-4479
9B 5310 008238803 NA 4 N 50305188 4/PG
MATERIAL REFERENCES
REF
NO.
DOCUMENT/DRAWING NUMBER DOCUMENT/DRAWING TITLE
REV
ICN: 3819P22114 KEY OP: A03
03-MAR-2025 1407
20.14.15.2.9020 (September 2024) (Continued) ICN: 3819P22114 KeyOp: A03
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: 1A BOILER BO A 6 2/2
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
LCC-19 USS BLUE RIDGE 19P 22111
CU PHASE TITLE: *(D11-1) F/O - REPAIR CRACK ON 1A BOILER CASING
FOUO Pg 5 of 5
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
004 M CLOTH,PLAIN WEAVE, H/W
GLASS CLOTH, COLOR IS
NATURAL
C234 H.TAKEMOTO 243-4479
ORDERED FOR KTR
9B 8305 001487364 NA 4 N 50305190 1/RO
005 M INSULATI, INSULATION,
FIBROUS GLASS, THERMAL,
BLANKET WITHOUT BINDER,
UNFACED, SIZE: 5FT W X 45FT
L X 1"THK, MIL-DTL-32585,
TYPE I, FORM 3, NSN: 5640-00-
173-6591 (NSN MISTAKENLY
INDICATES FACING D, BUT
CORRECT ITEM IN THIS NSN
IS UNFACED.)
C234 H.TAKEMOTO 243-4479
ORDERED FOR KTR
9Q 5640 LL9607458 NA 4 N 50317418 1/RO
006 M HOOK & WASHER, P/N:
LAGGING HOOK & WASHER
STEEL LARGE SIZE, 500 EA
PAIR PER PG
THIS IS SPECIAL ORDER
MAT'L FOR USING LAGGING
PADS.
C234 H.TAKEMOTO 243-4479
ORDERED FOR KTR
9B 5340 LL4661528 NA 4 N 50317801 3/PG
ATTACHMENT LIST
TITLE FILE NAME SAVED DATE
ENCLOSURE-01 3819P22114A03-Sketch.pdf 30-JAN-2025 0000
3819P22114A03
SKETCH
ENCLOSURE-01
SHEET 1 of 1
Hirotaka.Takemoto.ja Line
Hirotaka.Takemoto.ja_1 Line
Hirotaka.Takemoto.ja_2 Line
Hirotaka.Takemoto.ja_3 Oval
Hirotaka.Takemoto.ja_4 Line
Hirotaka.Takemoto.ja_5 Line
Hirotaka.Takemoto.ja_6 Oval
Hirotaka.Takemoto.ja_7 Line
Hirotaka.Takemoto.ja_8 Line
Hirotaka.Takemoto.ja_9 Line
Hirotaka.Takemoto.ja_10 Text Box
PIC 1
Hirotaka.Takemoto.ja_11 Text Box
PIC 2
Hirotaka.Takemoto.ja_12 Rectangle
Hirotaka.Takemoto.ja_13 Rectangle
Hirotaka.Takemoto.ja_14 Text Box
1A BOILER CASING
Hirotaka.Takemoto.ja_15 Text Box The crack extends towards the back
Hirotaka.Takemoto.ja_16 Line
Hirotaka.Takemoto.ja_17 Line
Hirotaka.Takemoto.ja_18 Line
Hirotaka.Takemoto.ja_19 Line
Hirotaka.Takemoto.ja_20 Line
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