TGI_38K4212357A01_c1v1.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.: #1SSGTGINTK AY A 0 1

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 03-174-0-Q

PREPARING ACTIVITY:

PREPARED BY: CODE PHONE DATE

RYO YAJIMA 231A. 315-243-2791 17-JUL-2025

APPROVED BY: CODE PHONE DATE

YUUJI NAKAMURA 231A 315-243-6041 17-JUL-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:

Incorrect sheet of reference 2.6 was specified.

CHANGE INSTRUCTIONS:

CH1: Revise applicable drawing sheet for reference 2.6. (8/26/2025)

SPECIAL REQUIREMENTS:

HOT WORK IN MAGAZINE AND ADJACENT SPACES IAW S6740-AA-SAF-010 AND NAVSEA OP 4, 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.: #1SSGTGINTK AY A 0

FOUO

SHIP: DDG-105 CHG/VER: 1/1

LIST OF EFFECTIVE PAGES

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

1-5 J-1 M-1

1. SCOPE/PURPOSE

1.1 Title: SSGTG Intake 03-174-0-Q Dirty Side; inspect, repair, and preserve

1.2 Location of Work:

1.2.1 SSGTG Intake (Dirty Side) (03-174-0-Q)

1.2.2 SSGTG Intake/Exhaust Trunk (02-161-2-Q)

1.3 Identification:

1.3.1 Quantity (One EA), SSGTG Intake, Dirty Side (03-174-0-Q)

1.3.2 Quantity (1,631 SF), Entire Interior Surface of SSGTG Intake Dirty Side (03-174-0-Q)

Remarks: The area excludes the intake louvers.

1.4 Security Classification: None.

1.5 Initial Condition:

1.5.1 Potential Asbestos Hazard.

1.5.2 Critical Coated Area: CCNY-DDG105-011-26 for the area listed in 1.3.2.

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 MP AL20-

K4212357-

EM01ZBD4

NR.1 SSGTG INTK FOD PROTN

FOR INTK DIRTY SIDE (03-174-0-

Q) INSP AND RPR BY CSWT

- Y AL

L

4 DWG 150-

7060427

UNIT STRL ARR DWG ASSY UNIT

E Y SE

E N

OT

E

5 DWG 150-

7060426

Unit Structural ARR DWG ASSY Unit 4220

J Y 3-6

6 DWG 150-

7060432

Unit Structural ARR DWG ASSY Unit 4320

C Y 3-6

FOUO

SHIP: DDG-105 CHG/VER: 1/1

REF.

NO.

DOCUMENT

/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV CHG

NO.

COPY

REQ’D

(Y/N)

SOURCE

DOC

(Y/N)

PARA SEC PG CHP

7 TM

SYSTEMS &

SPECIFICAT

IONS

SSPC Painting Manual Volume 2 - N

8 TM T9074-

AS-GIB-

010/271

Requirements for Nondestructive Testing Methods

1 N

9 TM S9086-

DA-STM-

010/CH-100

Hull Structures 4 N

10 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 the requirements of 2.3.

(V)(G) “GAS TURBINE MAINTENANCE PROCEDURE”

5.2 Accomplish a visual inspection of the current ship condition, listed in 1.3.1 and located in 1.2.1, using 2.4 through

2.6 for guidance.

5.2.1 Ensure to inspect each deck, bulkhead, and overhead surface, stiffener, penetration, and pipe hanger.

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

5.2.3 Submit one legible copy, in hard copy or approved transferrable media, of a report with a sketch listing results of the requirements of 5.2 to the SUPERVISOR.

5.3 Commercial blast clean for each area listed in 1.3.2. Accomplish each requirement of Surface Preparation Specification SSPC-SP 6 of 2.7.

5.4 Accomplish a visual inspection of each intake listed in 1.3.1 for structural integrity, deterioration, pitting, each crack, and area of damage or distortion in each location located in 1.2.1, using 2.4 through 2.6 for guidance.

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

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

5.5 Accomplish each ultrasonic thickness measurement (UTM) up to 100 locations in each location reported in 5.4.2, listed in 1.3.1, located in 1.2.1 in accordance with Paragraph 6.7 of 2.8 and 2.9, as designated by the SUPERVISOR, using 2.4 through 2.6 for guidance. The acceptance criteria must be in accordance with 2.10.

FOUO

SHIP: DDG-105 CHG/VER: 1/1

5.5.1 Submit one legible copy, in hard copy or approved transferable media, of a report listing results of the requirements of 5.5 to the SUPERVISOR.

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

5.6 Accomplish the following repairs documented in 5.2.3, 5.4.2 and 5.5.1, listed in 1.3.1, located in 1.2.1 as designated by the SUPERVISOR, using 2.4 through 2.6 for guidance. See 5.9.5 and 5.9.6.

5.6.1 Base metal weld buildup, a total of 50 square inches.

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

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

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

5.6.1.4 Each surface must be ground smooth to metal.

5.6.2 Remove existing and install new, a total of 45 square feet of deck, overhead, and bulkhead.

5.6.3 Remove existing and install new, a total of 30 linear feet of longitudinal, vertical, and transverse stiffener.

5.6.4 Vee-out and weld a total of 4 linear feet of each cracked, split, broken or damaged weld.

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

5.6.6 Template exact size, configuration, and location from each existing shipboard condition.

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

5.6.8 Accomplish the requirements of 009-025 of 2.1 for an air hose test of each new weld. Allowable leakage:

None.

5.7 Accomplish the requirements of 009-032 of 2.1, including Table 3, Line(s) 18A, for each area listed in 1.3.2.

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 R. Yajima, 243-2791

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. 251-042

5.9.4 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.

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

FOUO

SHIP: DDG-105 CHG/VER: 1/1

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

5.9.7 WPC will copy the following pages in reference.

REF. 2.4: Pages 5D, 3-6, 5-3, 6-12, and 6D-10

5.9.8 JCN EM01-ZBD4 is related to this TGI.

5.10 Government Furnished Material (GFM): None.

5.11 SRF-JRMC will provide the following service work: (TGI No. 38K4212357S02).

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 on-board 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] Provide QA inspection for (G) symbol(s) and review coating application data.

5.11.7 [C285] Inspection for (G) symbol(s).

FOUO

J-1

SHIP: DDG-105 CHG/VER: 1/1

APPENDIX "J"

TGI JOB SUMMARY INFORMATION SHEET

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

VERSION:

CASREP

CAT:

#1SSGTGINTK AY A 0 1

CU PHASE TITLE:

F/O – INSPECT, REPAIR, AND PRESERVE 03-174-0-Q

PRIMARY COMPONENT:

COMPONENT UNIT LIST (FOR ASSEMBLIES):

CMPT 02-161-2-Q MS #1 SSGTG INTAKE IT CMPT 03-174-0-Q MS

ATTACHMENT LIST:

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

YAGINUMA ,TAKEHIDE

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

38K4212357 A01

TOTAL MAT’L COST

CU PHASE DESCRIPTION:

The purpose of this TGI is to inspect, repair, and preserve 03-174-0-Q.

Location of Work:

Ship Service Gas Turbine Generator (SSGTG) Intake (Dirty Side) (03-174-0-Q) SSGTG Intake/Exhaust Trunk (02-161-2-Q)

TASK NAME

SHOP TSD/WC TS CREW# MHRS

HIGH RAD

HOURS

RC

GRID#

5.1 SFTR , OMCH 22 KE PC 0

5.2 SFTR , RGRS 22 KE PC 0

5.3 PNTR , RGRS 22 KE PC 0

5.4 SFTR 22 KE PC 0

5.5 SFTR 22 KE PC 0

5.6 SFTR , WELD , PNTR , CARP , QA 22 KE PC 0

5.7 PNTR , RGRS , QA 22 KE PC 0

5.8 PNTR , QA 22 KE PC 0

CFM: for all paints, thinner, UT inspection cost, fire watch cost, confined space watch cost, air compressor rental cost and fuel oil cost, grit including waste disposal cost, and MISC such as gases, electrode, temporary closure, covering material and other consumable.

22 MQ CS 0 0 0

Process Funding Document 10 CT OM 1 1 0

Version-1: revise applicable drawing sheet for reference 2.6.

C231A Y. Nakamura, 08/26/2026. Y/Y/N.

V-01 0 0 0

FOUO

M-1

SHIP: DDG-105 CHG/VER: 1/1

APPENDIX “M”

TGI MATERIAL LIST

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

VERSION:

CASREP

CAT:

#1SSGTGINTK AY A 0 1

CU PHASE TITLE:

F/O – INSPECT, REPAIR, AND PRESERVE 03-174-0-Q

MATERIAL REFERENCES

REF

NO.

DOCUMENT/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV

JOB ORDER: KEY OP:

38K4212357 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

NOTES:

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 #1SSGTGINTK AY A 0

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

38K4212357 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 #1SSGTGINTK AY A 0