38K42123ACA01.pdf
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- Attached to
- USS DEWEY (DDG-105) FY26 6C1 CNO SRA(d) BUNDLE #2, Chief of Naval Operation Availability Yokosuka Japan
- Solicitation number
- N6264926RA004
About this file
This is a WebAIM Short Form Task Group Instruction (TGI) for the USS Dewey (DDG-105), detailing a repair task for the No. 3 Ship Service Gas Turbine Generator (SSGTG) intake perforated sheet tack weld. The specific scope involves repairing broken tack welds on a perforated sheet made of ASTM-A240 CRES 316L material, 0.063 inches thick, located in the Generator Room and SS GTRB Generator Intake Trunk.
The document includes detailed procedural instructions from the SRF-JRMC (Shore Repair Facility - Japan Regional Maintenance Center), specifying requirements for accomplishing the repair. The repair will be supported by government-furnished services including crane and rigging, electrical utility, low-pressure air/water/steam supply, and various safety and quality assurance inspections. The material list includes hex nuts, flat washers, hex head screws, and a rubber sheet gasket, with 30 units ordered for most components. An attached sketch shows the location of the broken tack welds on the perforated sheets, with annotations indicating specific ship compartment locations and orientations.
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FOUO
WebAIM Short Form TASK GROUP INSTRUCTION
19-AUG-2025 1026
20.15.6.0.9333 (July 2025) ICN: 38K42123AC KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: #3 SSGTG INTAKE IT A 1 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
DDG-105 USS DEWEY K42 31133
CU PHASE TITLE: F/O – REPAIR NO. 3 SSGTG INTAKE PERFORATED SHEET TACK WELD
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 4
ES01NNYG
PREPARING ACTIVITY: STATUS: APP WORKING STATUS:
PREPARED BY: CODE: PHONE: DATE:
IZUMI, NORIAKI 234 3152432243 04-JUN-2025
APPROVED BY: CODE: PHONE: DATE:
HARADA, HIDEO 234 3152435176 05-JUN-2025
CONCURRED BY: CODE: PHONE: DATE:
REASON FOR WORK/NEED FOR CHANGE:
JCN:
ES01-NNYG
SPECIAL REQUIREMENTS:
CU PHASE DESCRIPTION:
ZONE MANAGER: ZONE: COMPARTMENT: LEVEL: FRAME: SIDE:
UENO, KOUICHI VARIOUS U
JOB SUMMARY ID: TOT MAN HR.: TOT DUR: TOT JML COST: PLANNING ACCEPTANCE:
123A46AC 0
1 SCOPE/PURPOSE:
1.1 Title: No. 3 Ship Service Gas Turbine Generator (SSGTG) Intake Perforated Sheet Tack Weld; repair
1.2 Location of Work:
1.2.1 Generator Room (3-370-0-E)
1.2.2 SS GTRB Generator Intake Trunk (1-388-2-Q)
1.3 Identification:
1.3.1 Quantity (One Lot), Perforated Sheet, Intake, No. 3 SSGTG
Material: ASTM-A240, CRES 316L, 0.063 Inch Thickness Remarks: See Sketch Enclosure-01 for detail
TGI Short Form
19-AUG-2025 1026
20.15.6.0.9333 (July 2025) (Continued) ICN: 38K42123AC KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: #3 SSGTG INTAKE IT A 1 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
DDG-105 USS DEWEY K42 31133
CU PHASE TITLE: F/O – REPAIR NO. 3 SSGTG INTAKE PERFORATED SHEET TACK WELD
FOUO Pg 2 of 4
CU PHASE DESCRIPTION (Cont.)
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. PROCEDURE:
2.1 Accomplish the requirements of Ref. No. 3.
(V)(G) “GAS TURBINE MAINTENACE PROCEDURE”
2.2 Accomplish repair broken tack weld on perforated sheet listed in 1.3.1 in accordance with Ref. No. 4.
2.2.1 Accomplish the requirements of 009-012 of Ref. No. One, including Table 2, Column(s) D, Lines One through 7.
2.3 Accomplish the requirements of 009-032 of Ref. No. One for each new and disturbed surface.
2.4 Notes:
2.4.1 Planner: Code 234 N. Izumi, 243-2243
2.4.2 Work Integration Manager (WIM): Code 333 T. Yaginuma, 080-5419-0598
2.4.3 JCN ES01-NNYG is related to this TGI.
2.5 Government Furnished Material (GFM):
2.5.1 SRF-JRMC will provide GFM listed in the Material List.
2.6 SRF-JRMC will provide the following service work: (TGI No. 38K42123ACS02).
2.6.1 [C740] Crane and crane rigging service.
2.6.2 [X99E] Utility service, electrical.
2.6.3 [X99M] Utility service, including low pressure air supply, water supply, and steam supply.
2.6.4 [C106.1] Safety inspection for SRF-JRMC employees.
2.6.5 [C106.2] Gas free inspection for SRF-JRMC employees.
2.6.6 [C285] Inspection for (G) symbol(s).
2.6.7 [C133] QA inspection for (G) Symbol(s).
19-AUG-2025 1026
20.15.6.0.9333 (July 2025) (Continued) ICN: 38K42123AC KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: #3 SSGTG INTAKE IT A 1 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
DDG-105 USS DEWEY K42 31133
CU PHASE TITLE: F/O – REPAIR NO. 3 SSGTG INTAKE PERFORATED SHEET TACK WELD
FOUO Pg 3 of 4
OTHER SPECIAL REQUIREMENTS:
Ref.
No.
Document/Drawing Number DOCUMENT/DRAWING TITLE REV
CHG
NO.
CPY
REQ PARAGRAPH SECT PG CHPT
1 NSI FY-26 NAVSEA Standard Items - 1 N 2 LI FY-26 Local Standard Items - ORG N
3 MP AL14-K42123AC-
ES01NNYG
NR.3 SSGTG INTAKE
SYSTEM FOD PROTECTION
FOR REPAIR BROKEN TACK
WELD OF PERFORATE
- Y ALL
4 DWG 259-7058629 FAB & INSTL OF SSGTG AIR
INTAKE GEN RM & AVOVE
C Y 11, TASK NAME / TASK DESCRIPTION
SHOP/
TSD TS
SF
WC
CREW
# MHRS RWRK
2.1 OMCH , BLRM 22/KE PC N
2.2 WELD , RGRS , QA 22/KE PC N
2.3 PNTR , QA . 22/KE PC N
CFM: for firewatch /safety watch cost, gas and welding rod and covering material and MISC.
22/MQ CS 0 0 N
Process Funding Document. 10/CT OM 1 1 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 NUT,HEX,, NUT, HEXAGON,
CHAMFERED
SIZE: 1/2"-13UNC-2B
MATL: CRES 316, ANNEALED.
MIL-DTL-1222 TY I GR 316,
MODIFY TO DOUBLE
CHAMFERED
C234 N. IZUMI
ORDERED FOR KTR
9B 5310 LL9308089 NA 4 N 51567419 30/EA
MATERIAL REFERENCES
REF
NO.
DOCUMENT/DRAWING NUMBER DOCUMENT/DRAWING TITLE
REV
ICN: 38K42123AC KEY OP: A01
19-AUG-2025 1026
20.15.6.0.9333 (July 2025) (Continued) ICN: 38K42123AC KeyOp: A01
COMPONENT NAME: TYPE: PHASE: REPEAT: CHG/VER:TGI NO: #3 SSGTG INTAKE IT A 1 0/0
SHIP/HULL NO: SHIP/HULL NAME: PROJECT: SYSTEM: PLANT ID: CASREP CAT:
DDG-105 USS DEWEY K42 31133
CU PHASE TITLE: F/O – REPAIR NO. 3 SSGTG INTAKE PERFORATED SHEET TACK WELD
FOUO Pg 4 of 4
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
002 M WASHER,FLAT, WASHER,
CRES
0.562ID X 1.375OD X 0.109”THK
FF-W-92, CL B, GR 1
C234 N. IZUMI
ORDERED FOR KTR
9B 5310 013897637 NA 4 N 51565039 30/EA
003 M SCREW,HE, SCREW CAP HEX
HEAD. SIZE 1/2"-13UNC-2A X 1-
1/2"LG, HEXAGON HEAD,
WASHRE FACED, CRES 316,
MIL-DTL-1222 TY I,
C234 N. IZUMI
ORDERD FOR KTR
9Z 5305 LL9002195 NA 4 N 51567420 30/EA
004 M RUBBER SHEET,SOLID,
GASKET
MIL-PRF-1149, TY 1, CL 2,
1/8”THK
ORDER FOR KTR
C234 N. IZUMI
9B 9320 010193909 NA 4 N 51565040 1/SH
ATTACHMENT LIST
TITLE FILE NAME SAVED DATE
ENCLOUSRE-01 38K42123ACA01-Sketch.pdf 04-JUN-2025 0000
38K42123ACA01
SKETCH
ENCLOSURE-01 Sheet 1 of 1
Noriaki.Izumi.ja Line
Noriaki.Izumi.ja_1 Line
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