38K4212387A01_c0v0.pdf

FOUO

FOUO: Public availability to be determined under 5 USC 552

TASK GROUP INSTRUCTION

AIM REV 20.11.4.0 (OCTOBER 2020)

TGI COMPONENT NAME: TYPE: PHASE: REPEAT: CHANGE:

NO.: SSGTG 3 EXH TRK AY A 0 0

SHIP/HULL NO.: SHIP/HULL NAME: SYSTEM: PROJ/WO NO: CASREP CAT:

DDG-105 USS DEWEY K42

CU PHASE TITLE:

F/O - INSPECT, REPAIR, AND PRESERVE IN SSGTG NO.3 EXHAUST TRUNK

PREPARING ACTIVITY:

PREPARED BY: CODE PHONE DATE

TETSUYA UEMATSU 231A 315-243-9943 07-AUG-2025

APPROVED BY: CODE PHONE DATE

YUUJI NAKAMURA 231A 315-243-6041 07-AUG-2025

CONCURRED BY: CODE PHONE DATE

CONCURRED BY: CODE PHONE DATE

CONCURRED BY: CODE PHONE DATE

CONCURRED BY: CODE PHONE DATE

REASON FOR WORK/NEED FOR CHANGE:

CHANGE INSTRUCTIONS:

SPECIAL REQUIREMENTS:

SURFMEPP

This work affects a fire zone boundary. Fabrication and/or staging of a non-flammable closure is required.

WORK CERTIFICATION SIGNATURES

COMPLETION OF WORK REVIEW: BADGE NO.: SHOP/CODE: PHONE: DATE:

ACCEPTANCE OF COMPLETED WORK

PHYSICAL INSPECTION PHYSICAL INSPECTION COMPLETED: BADGE NO.: SHOP/CODE: PHONE: DATE:

REQUIRED:☐YES ☒NO

RECORDS REVIEW: BADGE NO.: SHOP/CODE: PHONE: DATE:

TGI NO.: SSGTG 3 EXH TRK AY A 0

FOUO

SHIP: DDG-105 CHG/VER: 0/0

LIST OF EFFECTIVE PAGES

SHT NO. CHG NO. SHT NO. CHG NO. SHT NO. CHG NO. SHT NO. CHG NO. SHT NO. CHG NO.

1-6 J1-2 M-1

1. SCOPE/PURPOSE

1.1 Title: Inspection, Repair, and Preservation of Ships Service Gas Turbine Generator (SSGTG) No. 3 Exhaust Trunk; accomplish

1.2 Location of Work:

1.2.1 SSGTG Exhaust Trunk (1-370-2-Q)

1.2.2 IRS Eductor Secondary Air Inlet Trunk (01-378-2-Q)

1.2.3 Passage (01-377-0-L)

1.2.4 Passage (1-378-0-L)

1.3 Identification:

1.3.1 Quantity (One EA), SSGTG No. 3 Exhaust Duct

1.4 Security Classification: None.

1.5 Initial Condition: None.

1.6 Contractor work start date: See attached POP list.

1.7 Contractor work completion date: See attached POP list.

2. REFERENCES:

REF.

NO.

DOCUMENT

/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV CHG

NO.

COPY

REQ’D

(Y/N)

SOURCE

DOC

(Y/N)

PARA SEC PG CHP

1 NSI FY-26 NAVSEA Standard Items - 1 N 2 LI FY-26 Local Standard Items - ORG N

3 DWG 259-

7060870

FAB & INSTL OF SSGTG UPTAKE

GENERATOR RM & ABOVE

B N

4 DWG 100-

7060414

UNIT STRUCTURAL ARR DWG

ASSY UNIT 3340

J Y 3-

5 DWG 100-

7060410

UNIT STRUCTURAL ARR DWG

ASSY UNIT 3240

D Y 3-2

6 DWG 100-

7060411

UNIT STRUCTURAL ARR DWG

ASSY UNIT 3250

G Y SE

E N

OT

E

7 DWG 100-

7060996

UNIT STRUCTURAL ARR DWG

ASSY UNIT 3270

B Y SE

E N

OT

E

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SHIP: DDG-105 CHG/VER: 0/0

REF.

NO.

DOCUMENT

/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV CHG

NO.

COPY

REQ’D

(Y/N)

SOURCE

DOC

(Y/N)

PARA SEC PG CHP

8 TM

SYSTEMS &

SPECIFICAT

IONS

SSPC Painting Manual Volume 2 - N

9 TM T9074-

AS-GIB-

010/271

Requirements for Nondestructive Testing Methods

1 N

10 TM S9086-

DA-STM-

010/CH-100

Hull Structures 4 N

11 MIL MIL-

STD-2035

Nondestructive Testing Acceptable Criteria

A N

3. APPENDICES:

3.1 Appendix “J” TGI Job Summary Information Sheet

3.2 Appendix "M" TGI Material List

3.3 Appendix “D” Deficiency Form

4. GENERAL REQUIREMENTS:

4.1 Not Applicable.

5. PROCEDURE:

5.1 Accomplish a visual inspection of the current ship condition, listed in 1.3.1, located in 1.2.1, using 2.3 through 2.7 for guidance, and as designated by the SUPERVISOR.

5.1.1 Ensure to inspect each interior exhaust stack, exterior uptake duct and mixing tube, anchor foundation, eductor, eductor nozzle, overhead, bulkhead, deck, restraint, steel channel, penetration, deck spool, ladder foundation, bolting ring, and pipe hanger.

5.1.2 Mark each identified and designated area requiring repair.

5.1.3 Submit one legible copy, in hard copy or approved transferrable media, of a report with a sketch listing results of the requirements of 5.1 to the SUPERVISOR.

5.2 Power tool clean to bare metal for each location reported in 5.1.3, listed in 1.3.1, located in 1.2.1, to include each exposed longitudinal, vertical, and traverse stiffener, for a total 373 square feet. Accomplish each requirement of Surface Preparation Specification SSPC-SP 11 of 2.8, as designated by the SUPERVISOR.

5.3 Accomplish a visual inspection in each location for coating removed in 5.2, listed in 1.3.1, located in 1.2.1 for structural integrity, deterioration, pitting, each crack, and area of damage or distortion, using 2.3 through 2.7 for guidance.

5.3.1 Mark each corroded, damaged and/or deteriorated area.

5.3.2 Submit one legible copy, in hard copy or approved transferable media, of a report with a sketch listing results of the requirements of 5.3 to the SUPERVISOR.

5.4 Accomplish each ultrasonic thickness measurement (UTM) in up to 100 locations in each location reported in 5.3.2, listed in 1.3.1, located in 1.2.1 in accordance with Paragraph 6.7 of 2.9 and 2.10, as designated by the SUPERVISOR, using 2.3 through 2.7 for guidance. The acceptance criteria must be in accordance with 2.11.

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SHIP: DDG-105 CHG/VER: 0/0

5.4.1 Submit one legible copy, in hard copy or approved transferable media, of a report listing results of the requirements of 5.4 to the SUPERVISOR.

5.4.2 Ensure a sketch showing each location of each UTM reading, original material thickness, existing material thickness, and percentage of material thickness reduction.

5.5 Accomplish the following repairs reported in 5.1.3, 5.3.2, and 5.4.1, listed in 1.3.1, located in 1.2.1, using 2.3 through 2.7 for guidance, as designated by the SUPERVISOR. See 5.9.4 and 5.9.5.

5.5.1 Base metal weld build-up a total of 160 square inches.

5.5.1.1 Ensure each base metal buildup area does not exceed 2 inches in diameter.

5.5.1.2 Estimate the base metal buildup repair to be one quarter inch thick for pricing purposes.

5.5.1.3 Fill each local pit and groove with weld metal prior to the application of each principle build-up layer.

5.5.1.4 Ensure each surface is ground smooth to metal.

5.5.2 Remove existing and install new a total of 94 square feet of plate for each bulkhead, overhead, and deck plate.

5.5.3 Remove existing and install new a total of 75 linear feet of longitudinal, vertical, and traverse stiffener.

5.5.4 Remove existing and install new a total of 5 square feet of anchor foundation and flange joint.

5.5.5 Remove existing and install new each deck spool, gasket and bolting ring.

5.5.6 Vee out and weld a total of 25 linear feet of cracked, split, broken or damaged weld.

5.5.7 Chip and grind each surface flush in way of each repair.

5.5.8 Template exact size, configuration, and location from each existing shipboard condition, in way of each repair.

5.5.9 Accomplish the requirements of 009-012 of 2.1, including Table 2, Columns A and D, Lines One through 7.

5.5.10 Accomplish the requirements of 009-025 of 2.1 for a local air hose test of each new weld seam. Allowable leakage: None.

5.6 Accomplish the requirements of 009-032 of 2.1, including Table 3, Line 22A, for coating removed in 5.2, located in 1.2.1.

5.7 Confirm that all personnel have exited the space prior to closure of the space listed in 1.2.1 and 1.2.2. Designate one person to account for all personnel who may have entered the space.

5.8 Accomplish the requirements of 009-032 of 2.1 for each new and disturbed surface.

5.9 Notes:

5.9.1 Planner: Code 231A T. Uematsu, 243-9943

Planner: Code 234 K. Akase, 243-2372

5.9.2 Work Integration Manager (WIM): Code 333 T. Yaginuma, 080-5419-0598

5.9.3 This TGI meets the intent of DDG CSWT File No. 259-090.

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SHIP: DDG-105 CHG/VER: 0/0

5.9.4 Removal and installation of interferences, and gas free operation, preservation of boundary spaces relating to front loading structure repair in 5.5 are not included in this TGI. They will be covered by a DL in the future based on Contractor submitted condition report.

5.9.5 Materials for structural members relating to front loading repair will be provided in the future as a DL based on Contractor submitted condition report.

5.9.6 Work per this instruction involves cutting an access (or removal of a door) through a fire zone bulkhead, through the hull of the ship above the turn of the bilge, through ventilation components (ducting, plenums, etc.), or through any air-tight, fume-tight or watertight bulkheads normally used to control air flow in the event of a shipboard fire. A nonflammable closure is required in accordance with COMNAVSEASYSCOM MSG R 261400Z JUL 12. The closure, if not continuously in use, shall be staged near the access, readily visible and accessible, so that any emergency responder can install the closure to affect proper air flow onboard the ship.

5.9.7 WPC will copy the following pages in reference.

REF. 2.6: Pages 3C-3, 3A-12, 5B-12, 5C-12, 6-12, and 6A-12.

REF. 2.7: Pages 3-5, 4-5, 5-6, and 6-6.

5.9.8 JCN EM04-ZAK1 is related to this TGI.

5.10 Government Furnished Material (GFM):

5.10.1 SRF-JRMC will provide GFM listed in Appendix “M”.

5.11 SRF-JRMC will provide the following service work: (TGI No. 38K4212387S02).

5.11.1 [C740] Crane and crane rigging service.

5.11.2 [X99E] Utility service, electrical.

5.11.3 [X99M] Utilities service, including water supply, steam supply, and low pressure air supply except onboard blasting work.

5.11.4 [C106.1] Safety inspection for SRF-JRMC employees.

5.11.5 [C106.2] Gas free inspection for SRF-JRMC employees.

5.11.6 [C133] QA Inspection for (G) symbol(s).

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J-1

SHIP: DDG-105 CHG/VER: 0/0

APPENDIX "J"

TGI JOB SUMMARY INFORMATION SHEET

SYSTEM: PLANT NO.: COMPONENT NAME: TYPE: PHASE: REPEAT: CU PH

VERSION:

CASREP

CAT:

SSGTG 3 EXH TRK AY A 0 0

CU PHASE TITLE:

F/O - INSPECT, REPAIR, AND PRESERVE IN SSGTG NO.3 EXHAUST TRUNK

PRIMARY COMPONENT:

COMPONENT UNIT LIST (FOR ASSEMBLIES):

CMPT 1-370-2-Q MS CMPT 01-378-2-Q MS

ATTACHMENT LIST:

ZONE MANAGER: ZONE: COMPARTMENT: LEVEL: FRAME: SIDE:

YAGINUMA ,TAKEHIDE

JO: KO: TOTAL MAN HRS: TOTAL DURATION: PLANNING ACCEPTANCE:

38K4212387 A01

TOTAL MAT’L COST

CU PHASE DESCRIPTION:

The purpose of this TGI is to inspect, repair, and preserve Ships Service Gas Turbine Generator No. 3 Exhaust Trunk.

Location of Work:

SSGTG Exhaust Trunk (1-370-2-Q) Passage (01-377-0-L) IRS Eductor Secondary Air Inlet Trunk (01-378-2-Q) Passage (1-378-0-L)

TASK NAME

SHOP TSD/WC TS CREW# MHRS

HIGH RAD

HOURS

RC

GRID#

5.1 SFTR , RGRS 22 KE PC 0

5.2 PNTR 22 KE PC 0

5.3 SFTR 22 KE PC 0

5.4 SFTR 22 KE PC 0

5.5 SFTR , WELD , BLRM , PNTR , QA 22 KE PC 0

5.6 PNTR , QA , CARP 22 KE PC 0

5.7 SFTR 22 KE PC 0

5.8 PNTR , QA 22 KE PC 0

Structure and Preservation Work CFM: for all paints, thinner, grits, disposal cost, UT inspection cost, air compressor and fuel cost, marine chemist cost, strong back material, firewatch cost, confined space watch cost, fastener, gasket, compressor, dryer, fuel, (continues to below)

22 MQ CS 0 0 0

(continues from above) and misc such as electrode, gases, covering material, enclosing material, closure material, and other consumable.

22 MQ CS 0 0 0

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J-2

SHIP: DDG-105 CHG/VER: 0/0

TASK NAME

SHOP TSD/WC TS CREW# MHRS

HIGH RAD

HOURS

RC

GRID#

Boiler Work CFM: for covering material, anti-seize compound, and other consumable material (MISC).

22 MQ CS 0 0 0

Process Funding Document 10 CT OM 1 1 0

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M-1

SHIP: DDG-105 CHG/VER: 0/0

APPENDIX “M”

TGI MATERIAL LIST

SYSTEM: PLANT NO.: COMPONENT NAME: TYPE: PHASE: REPEAT: CU PH

VERSION:

CASREP

CAT:

SSGTG 3 EXH TRK AY A 0 0

CU PHASE TITLE:

F/O - INSPECT, REPAIR, AND PRESERVE IN SSGTG NO.3 EXHAUST TRUNK

MATERIAL REFERENCES

REF

NO.

DOCUMENT/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV

JOB ORDER: KEY OP:

38K4212387 A01

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

400 M GASKET, FIBERGLASS,

GASKET, FIBROUS GLASS,

WIRE-REINFORCED PLAIN,

TAPE,

SPEC: HH-P-31, TYPE I, CLASS

2, SIZE: 1/2"W X 1/8"THK X 20FT

L, REMARKS: NON-ASBESTOS

REQUIRED

ORIG: C234 K.AKASE, 243-2372

ORDER FOR KTR

9B 5330 LL4924382 NA 4 N 52177405 1/RO

401 M WASHER,2, WASHER,

FIBROUS GLASS, WIRE-

REINFORCED PLAIN, CLOTH,

SPEC: HH-P-31, TYPE I, CLASS

1 SIZE: 2" OD X 21/32" ID, 3/8"

THK. BIW CAT#: 52419-026

*DARCO SOUTHERN P/N:

ZFL0HHP-000-017

ORIG: C234 K.AKASE, 243-2372

ORDERED FOR KTR

9Z 5310 LL4917124 NA 4 N 52097412 35/EA

NOTES:

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M-2

SHIP: DDG-105 CHG/VER: 0/0

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

402 M FERRULE, FERRULE, FIBROUS

GLASS, WIRE-REINFORCED

PLAIN, CLOTH, SPEC: HH-P-31,

TYPE I, CLASS 1,

SIZE: 31/32"OD X 21/32"ID X

3/8"LG, REMARKS: NON-

ASBESTOS REQUIRED,

BIW CAT#: 54638-035

ORDERED FOR KTR

C234 K.AKASE 243-2372

9B 5340 LL4941033 NA 4 N 35/EA

403 M GASKET, FLAT, GASKET,

FIBROUS GLASS, WIRE-

REINFORCED PLAIN, CLOTH,

SPEC: HH-P-31, TYPE I, CLASS

1, SIZE: 47-11/16"OD X 42-7/16"ID

X 3/8"THK,

BOLT CIRCLE DIA: 45-11/16",

30 BOLT HOLES, 25/32" DIA

HOLES, HOLES EQUALLY

SPACED,

REMARKS: NON ASBESTOS

REQUIRED,

BIW CAT NO. 52248-485

9B 5330 LL9813662 NA 4 N 1/EA

FOUO: Public availability to be determined under 5 USC 552 SHEET_____OF_____

☐ NUCLEAR APPENDIX "D"

DEFICIENCY FORM

☐ NON-NUCLEAR

1. SHIP/HULL NO.: 2a. DL or DR No.

(Circle One)

2b. REVISION: 3a. COMPONENT NAME: 3b. TYPE: 3c. PHASE: 3d. REPEAT:

DDG-105 SSGTG 3 EXH TRK AY A 0

4a. ICN: 4b. KEY OP: 5. LOC SPACE/LVL: FRAME: P/S/C: 6. CAUSED BY:

38K4212387 A01

7. DESCRIPTION:

8. ORIGINATOR: NAME: BADGE: SHOP/CODE: DATE: PHONE NO.:

9. CORRECTIVE ACTION:

10. EVALUATOR: NAME: BADGE: SHOP/CODE: DATE: PHONE NO.:

FOR NON-NUCLEAR USE ONLY

11. RFD/RFW REQ’D ☐ LAR REQ'D ☐

ILS MOD REQ’D ☐

SRD/PLAN REV REQ'D ☐

DWG NO.: _____________________ S/A NO.: ___________________

12. ISOLATION SIGN: BADGE: SHOP/CODE: DATE: PHONE NO.:

SATISFACTORY:

13. SUBSAFE OQE RECORD? SIGN: BADGE: SHOP/CODE: DATE: PHONE NO.

YES ☐ NO ☐

14. CORRECTIVE ACTION SIGN: BADGE: SHOP/CODE: DATE: PHONE NO.

COMPLETE:

15. INSPECTION REQ’D? INSPECTION COMPLETE/SIGN: BADGE: SHOP/CODE: DATE: PHONE NO.

_________:YES ☐ NO ☐

16. RECORDS REVIEW SIGN: BADGE: SHOP/CODE: DATE: PHONE NO.

COMPLETE (DR ONLY)

DL’s ISSUED

(DR ONLY)

FOUO: Public availability to be determined under 5 USC 552 SHEET_____OF_____

☐ NUCLEAR Deficiency Form Continuation Sheet ☐ NON-NUCLEAR

1. SHIP/HULL NO.: 2a. DL or DR No.

(Circle One) 2b. REVISION: 3a. COMPONENT NAME: 3b. TYPE: 3c. PHASE: 3d. REPEAT:

DDG-105 SSGTG 3 EXH TRK AY A 0