TGI_38K6112321A01_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.: CMPT 01-378-2-Q MS A 0 0

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

DDG-115 USS RAFAEL PERALTA 15211 K61

CU PHASE TITLE:

F/O - INSPECT, REPAIR, AND PRESERVE IN IRS EDUCTOR SECONDARY AIR INLET TRUNK

PREPARING ACTIVITY:

PREPARED BY: CODE PHONE DATE

MOTONORI HAYASHI 231B. 315-243-6145 27-NOV-2025

APPROVED BY: CODE PHONE DATE

RYOUTA TAKAGI 231B. 315-243-4502 27-NOV-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.: CMPT 01-378-2-Q MS A 0

FOUO

SHIP: DDG-115 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.

1-5 J-1 M-1

1. SCOPE/PURPOSE

1.1 Title: Inspection, Repair, and Preservation of IRS Eductor Secondary Air Inlet Trunk; accomplish

1.2 Location of Work:

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

1.3 Identification:

1.3.1 Quantity (One EA), IRS Eductor Secondary Air Inlet Trunk

1.4 Security Classification: None.

1.5 Initial Condition: None.

1.6 Contractor Work start date:

1.7 Contractor Work completion date:

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 100-

7027658

UNIT STRUCTURAL ARR DWG-

ASSY UNIT 3270

D Y SE

E N

OT

E

4 DWG 100-

7026702

DDG-51 CLASS UNIT STRL ARR

DWG ASSY UNIT3250

M Y SE

E N

OT

E

5 TM

SYSTEMS &

SPECIFICAT

IONS

SSPC Painting Manual Volume 2 - N

6 TM T9074-

AS-GIB-

010/271

Requirements for Nondestructive Testing Methods

1 N

7 TM S9086-

DA-STM-

010/CH-100

Hull Structures 4 N

8 MIL MIL-

STD-2035

Nondestructive Testing Acceptable Criteria

A N

3. APPENDICES:

Kouichi.Yoshida.ja Typewritten Text 7/27/2026

Kouichi.Yoshida.ja Typewritten Text 9/4/2026

FOUO

SHIP: DDG-115 CHG/VER: 0/0

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, for the interior of each IRS eductor secondary air inlet trunk listed in 1.3.1, using 2.3 and 2.4 for guidance.

5.1.1 Inspect each vertical and horizontal stiffener, platform, bulkhead, steel channel, deck/bulkhead penetration, deck drain and 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 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 to include each exposed vertical, and horizontal stiffener for up to 69 square feet. Accomplish each requirement of Surface Preparation Specification SSPC-SP 11 of 2.5, as designated by the SUPERVISOR.

5.3 Accomplish a visual inspection of each prepared surface in 5.2 for structural integrity deterioration, pitting, each crack and area of damage or distortion of each IRS eductor secondary air inlet trunk listed in 1.3.1, using 2.3 and 2.4 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 10 locations in each location reported in

5.3.2 in accordance with Paragraph 6.7 of 2.6 and 2.7, as designated by the SUPERVISOR, using 2.3 and 2.4 for guidance. The acceptance criteria must be in accordance with 2.8.

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 of each IRS eductor secondary air inlet trunk listed in 1.3.1, using 2.3 and 2.4 for guidance, as designated by the SUPERVISOR. See 5.8.4 and 5.8.5.

5.5.1 Base metal weld build-up for up to 30 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 metal prior to the application of each principle build-up layer.

5.5.1.4 Ensure each surface is ground smooth to metal.

Kouichi.Yoshida.ja Cross-Out

Kouichi.Yoshida.ja Typewritten Text

1/24/2026 C1209.2 K. YOSHIDA

FOUO

SHIP: DDG-115 CHG/VER: 0/0

5.5.2 Remove existing and install new up to 34 square feet of plate for each bulkhead, overhead, and deck plate.

5.5.3 Remove existing and install new up to 13 linear feet of longitudinal, vertical, and traverse stiffener.

5.5.4 Vee out and weld up to 5 linear feet of cracked, split, broken or damaged weld.

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

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

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

5.5.8 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(s) 22A, for coating removed in 5.2 and repaired 5.5 of IRS eductor secondary air inlet trunk listed in 1.3.1.

5.6.1 Power tool clean to bare metal for each area. Accomplish each requirement of Surface Preparation Specification SSPC-SP 11 of 2.5.

5.6.2 The preservation area must not exceed 10 square feet per one area.

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

5.8 Notes:

5.8.1 Planner: Code 231B M. Hayashi, 243-6145

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

5.8.3 This TGI meets the intent of DDG CSWT File No. 259-101.

5.8.4 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.

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

5.8.6 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.

5.8.7 WPC will copy the following pages in reference.

REF. 2.3: Pages 5-1, 6-1, and 3-5 REF. 2.4: Pages 3C, 3A-12, 5C-12, 6-12, 6A-12, and 7A-15

5.8.8 JCN EM02-ZAY9 is related to this TGI.

5.9 Government Furnished Material (GFM): None.

FOUO

SHIP: DDG-115 CHG/VER: 0/0

5.10 SRF-JRMC will provide the following service work: (TGI No. 38K6112321S02).

5.10.1 [C740] Crane and crane rigging service.

5.10.2 [X99E] Utility service, electrical.

5.10.3 [X99M] Utility service, including low pressure air supply, water supply, and steam supply.

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

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

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

FOUO

M-1

SHIP: DDG-115 CHG/VER: 0/0

APPENDIX “M”

TGI MATERIAL LIST

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

VERSION:

CASREP

CAT:

15211 CMPT 01-378-2-Q MS A 0 0

CU PHASE TITLE:

F/O - INSPECT, REPAIR, AND PRESERVE IN IRS EDUCTOR SECONDARY AIR INLET TRUNK

MATERIAL REFERENCES

REF

NO.

DOCUMENT/DRAWING

NUMBER

DOCUMENT/DRAWING TITLE REV

JOB ORDER: KEY OP:

38K6112321 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-115 CMPT 01-378-2-Q MS A 0

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

38K6112321 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-115 CMPT 01-378-2-Q MS A 0