1.02 38DJ225901_00_A01.pdf

ShipIHULL NO. Ship/HULL NAME ICN: Rev: Key Op:

LHA -7 USS TRIPOLI

JON. 380JA25901 AOl

TITLE:

Grab Rod Inside Exhaust Duct of No.2 Gas Turbine; replace

JOB SPECIFICATION

Anticipated Award Date: Production Completion Date: PREPARING ACTIVITY:

SASEBOPOP Start Date: POP End Date:

PREPARED BY: CODE DATE

M.HISATOMI P_HI 1/17/2026

APPROVED BY: ( A CODE

S.MURAKAMI S225

CONCURRED BY: CODE

T.TAKAMASU S234

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

'?*)I E7&X B1 <:vc) Ai US Navy

Marine Gas Turbine Inspector

DESCRIPTION:

JSN(S): EMDI -1173 CASREP

SIF CONTACT: BARBER GSMI I ACOSTA GSCS CWP # CCNS #

0. PERKINS

Approved by S3001S900 Date: 7' /' AVL: 6A1

LWC:

Work Completed

SlForce: Rate: Date:

Ship Supt: Date: SRF CONTROL NO.:________________________

WORK CERTIFICATION SIGNATURES

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

Sakura.Yamaguchi.ja Typewritten Text 09/11/2026

Sakura.Yamaguchi.ja Typewritten Text 10/13/2026

Sakura.Yamaguchi.ja Typewritten Text 12/18/2026

Sakura.Yamaguchi.ja Typewritten Text 01/29/2027

Sakura.Yamaguchi.ja Cross-Out

Sakura.Yamaguchi.ja Typewritten Text 7J1

Sakura.Yamaguchi.ja Cross-Out

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38DJ225901

Sakura.Yamaguchi.ja Typewritten Text All pages of this documents will change ICN from 38DJA25901 to 38DJ225901 written as shown on this cover sheet. All Pages of this documents will change avail from 6A1 TO 7J1 where written as shown on this cover sheet.

Sakura.Yamaguchi.ja Typewritten Text 1301398190

1. SCOPE:

1.1 Title: Grab Rod Inside Exhaust Duct of No.2 Gas Turbine; replace

1.2 Location of Work:

1.2.1 Main Machinery Room No. One (6-65-0-E)

1.3 Identification:

1.3.1 Quantity (One EA), Top Entryway Grab Rod Inside the Exhaust Duct of No.2 Gas Turbine Located in 1.2.1, 3/4 Inch OD by 36 Inches Long (FN-23 of 2.2), Inconel 625, ASTM B446, See DET 3-F and 5-B of Sheet-16 of 2.2.

2. REFERENCES:

2.1 Standard Items (FY26)

2.2 259-8503003 Rev-A, Gas Turbine Comb Air Exhaust Machinery Room No.1 and Above

2.3 LM2O-DJA25901-EM011173, No.2 GTM Exhaust Collector FOD Protection for Grab Rod Repair in Exhaust Duct (Enclosed)

3. REQUIRENTS:

3.1 Prior to starting this work item, consult Ship's Force to verify ship's operating condition if each reusable cover installation is required when Ship's Force operate each affected component for "OPERATING PRESSURE TEST" specified in 3.3.4.

(V) "REPORT"

3.1.1 Submit one legible condition report listing result of the requirement in 3.1 to SUPERVISOR.

3.2 Clean each area affected by this work item to a gas/oil free condition, in accordance with 29 CFR 1915 Subpart B.

CV) !IREPORT!I

3.2.1 Submit one legible condition report of the Marine Chemist certificate to SUPERVISOR, including certified location.

3.3 Remove each existing grab rod and install each grab rod to replace each grab rod listed in 1.3.1, using DET 3-F and 5-B of Sheet-16 of 2.2 for guidance.

3.3.1 Accomplish the requirements of 2.3. (See.4.2.)

III L.

Grab Rod Inside Exhaust Duct of No.2 Gas Turbine; replace

Sakura.Yamaguchi.ja Typewritten Text

FY27

Sakura.Yamaguchi.ja Typewritten Text S.Yamaguchi

Sakura.Yamaguchi.ja

07/28/2026

Ship/HULL NO. Ship/HULL NAME ICN: Rev: Key Op:

LHA-7 USS TRIPOLI

JON. 380JA25901 AOl

TITLE:

Grab Rod Inside Exhaust Duct of No.2 Gas Turbine; replace

3.3.2 Accomplish the requirements of 009-12 of 2.1, including Table 2, Column 5, Lines One through 7.

3.3.3 Witness visual inspection of replaced grab rod listed in 1.3.1 to be conducted by Ship's Force.

(V) "REPORT"

3.3.3.1 Submit one legible condition report listing results

of the requirements of 3.3.3 to SUPERVISOR.

(V) (G) "OPERATING PRESSURE TEST"

3.3.4 Witness an operating pressure test of exhaust duct of No.2 Gas Turbine to be conducted by ship's force to verify tightness of each mechanical joint of manhole cover, until the specified criteria is verified. Allowable leakage: None. - S130

4. NOTES:

4.1 Initial Condition - Top entryway grab rod inside the exhaust duct of No.2 gas turbine had been broken at the weld.

4.2 Point of Contact of Gas Turbine Inspecter is S280 (Former S21l) Mr.

C.Ellis, Extension 252-3294 for Paragraphs A.2, C-1.1, D.3 and P.1.2 of 2.3.

5. GOVERNMENT FURNISHED MATERIAL (GFM):

5.1 SRF will provide following material.

MATERIAL_LIST

M

QTY

ITEM PC REF I STOCK I-IAZ DOC REQD/ PARA

NO. NO NO C DESCRIPTION NUMBER MA1 NO. UNIT NO.

001 M ROD,3/4"OD, INCONEL625,ASTM -B446GR-1 9B9530 N 6013E221 10/FT 3.3

SA4921318

002 M

WELDING ROD, MIL-RN625, 1/16 X 12, MIL-E- 9B 3439 N

2/BX

3.3

21562, BX/1OLB SAPTAOO65

003 M GASKET SHEET, THERMICULITE, CRES 316 9B 5330 N

2/SH

3.3

CORE, MAX SVCE TEMP 1450 F, FLEXITALLIC, SAPKIO521

STYLE 815, 1/8"THKX6O"X60"

FOR MANHOLE GASKET

004 M GLASS CLOTH, HIW, MIL-C-20079 (5OYD/RO)

9B 8305 N

6009B008

1/RO

001487364

005 M

INSULATION FELT, 1"THK, MIL-DTL-32585 9B 5640 N

6009E900

1/RO

TYPE-I FORM-3 (FORMER MIL-I-16411 5A9607458

TYPE2), 5'W X 45'

006 M ADHESIVE WHITE, MIL-A-3316 CL-i GRADE A

9B 8040 Y

1IGL

002738708

007 M

SEALING COMPOUND, MIL-C-i 9565 TY-Il, 9B 8030 Y

6014B822 iIGL

VAPOR BARRIOR 001742588

008 M INSULATION CEMENT, FINISH, SS-C-160 9Q 5640 Y

6009B800

2IBG

(45LB/BG) 002264540

VA

Ship/HULL NO. Sfflp/HULL NAME ICN: Rev: Key Op:

LHA-7 USS TRIPOLI JON. 380JA25901 AOl

TITLE:

Grab Rod Inside Exhaust Duct of No.2 Gas Turbine; replace

MATERIAL_LIST

M

QTY

ITEM PC REF I STOCK HAZ DOC REQDI PARA

NO. NO NO C DESCRIPTION NUMBER MA1 NO. UNIT NO.

009 M INSULATION CEMENT, HIT, SUPERTEMP 1900, 9Q 5640 Y 6009E950 2IBG -

MIL-C-2861, 45LB/BG LLN047969

010 M WIRE NETTING (HEXAGONAL POULTRY 9B 5335 N

1/RO

NETTING), 1" MESH SPACING, 20 GAUGE, SAPH10214

48"WIDE X 50' ROLL, GALVANIZED STEEL,

ASTM-A-390, DEACERO PIN 6424

011 M GLASS THREAD, MIL-C-20079, SLI3000YD

9B 8310 N

6009B009

1ISL

000851711

012 M

WIREMESH, CRES(4'XlOO'/EA) 9B5335 N

6009B011

1/EA

005989404

CONTINGENCY MATERIAL FOR MANHOLE

FASTENER

013 C SCREW, 1/2-13X 1 -1/4"LG, HEX HEAD,

9B 5306 N

6008E206

30/El

INCONEL 718 5APH10489

014 C NUT, 1/2-13, HEX HEAD, INCONEL 718 9B 5310 N

6008E205

30/El

SA492 1280

015 C

WASHER, FLAT, 1/2", CRES 316 9B 5310 N

6009B021

30/EA

015367272

'A

GAS TURBINE MAINTENANCE PROCEDURE

TITLE

NO.2 GTM EXHAUST COLLECTOR FOD PROTECTION FOR GRAB ROD REPAIR

IN EXHAUST DUCT

NUMBER

LM2O-DJA25901-EM011173

ORIGiNATOR SAITO

APPROVAL

DATE ,'/Yy/, SHIP / HULL USS TOBJPOLI LHA-7

COMPONENT

NO.2 GAS TURBINE MODULE (GTM) EXHAUST

COLLECTOR

WORK ORDER 38DJA25901/EM01 -1173

TEAM LEADER N/A

C285 REPRESENTATIVE

(a) COMUSFLTFORCOM1NST 4790.3 JOINT FLEET MAINTENANCE MANUAL

REVISION D CH-5

(b) NAVSHIPREPFACINST 9222.1E MARINE GAS TURBINE OPERATING

INSTRUCTION

(c) NAVSHIPREPFACINST M-5100.8 CH-3 SAFET AND HEALTH PROGRAM MANUAL

(d) LM2500 GAS TURBINE BULLETIN MIL-L-23699 GAS TURBINE SYNTHETIC LUBE

(GTB) NO.32 OIL GUIDANCE

(e) S9234-DN-MMC-030 REV 3 LM2500+ GAS TURBiNES CORRECTIVE

SHIPBOARD MAINTENANCE

ENCLOSURE

NONE

LM2O-DJA25901-EM011173 Page 1 of4 i"g JON: 38DJA25901 -AOl

A GENERAL INFORMATION:

A. 1. This Gas Turbine work item requires a Maintenance Procedure (MP) in accordance with references (a) and(b).

A.2. If discrepancies between the TWD and MP are identified or you would like to modify this MP, contact Code S21 1/285 for resolution prior to proceeding.

A.3. If this work item is contractor work, the contractor's supervisor or SRF-JRMC Work Integration Manager (WIM) can sign off the Work Center Supervisor (WCS) steps.

B. WARNINGS:

B. 1. Extreme caution shall be taken during all operations inside or around intake trunk, engine module and exhaust trunk to prevent personal injury. Ensure safety precautions outlined in the applicable technical manual and SRF-JRMC instruction in accordance with reference (c) to all personnel working inside or around intake trunk, engine module and exhaust trunk.

B.2. MIL-PRF-23 699 synthetic lube oil is toxic and may cause severe health problems if handled improperly.

Use reference (d) as guidance for proper handling.

B.3. Do not use markers that contain graphite or fluorocarbon for marking. Use MARKS-A-LOT blue or black markers.

B.4. Ground arc welding equipment to the component being welded as close as possible to the weld area to prevent damage Gas Turbine Engine (GTE) bearing and races.

B.5. Objects left in the module can cause severe damage to the gas turbine. Comply with all precautions outlined in reference (e) paragraph WP_002.

C. CAUTIONS:

C. 1. Prerequisites:

C. 1.1. Code S2 11/285 will assign a representative. Code S21 1/285 will enter his/her name on the cover page of this MP and assigned person will sign acknowledging the assignment.

C. 1.2. Code S2 11/285 representative will brief the work center on the SAFETY requirements outlined in accordance with reference (e) prior to starting work.

C.2. Module/inlet plenunilintake/exhaust entering, exiting and working precautions.

C.2.1. Prior to entering the Gas Turbine Engine (GTE) module, comply with the following items.

a. Ensure GTE is tagged out to starting work.

b. Notify CCS prior to entering GTE module.

c. Check fire extinguishing system is disabled.

d. List tools and materials taken into the module.

e. Do not leave module open and unattended.

C.2.2. Prior to exiting the GTE module, comply with the following items.

a. Clean the GTE module.

b. Ensure no foreign materials and tools are left inside module.

C.2.3. During work inside the GTE module, comply with the following items.

a. Do not step on items within the module.

b. Cover appropriate area to prevent from dust and damage.

c. Wear safety equipment.

LM2O-DJA25901-EMO11 173 Page 2 of4

JON: 38DJA25901-AO1

d. Empty pockets and take off wristwatches, rings and any loose items.

C.2.4. Prior to entering the inlet plenum and intake, comply with following items.

a. Empty pockets and take off wristwatches, rings and any loose items.

b. List tools and materials taken into the intake.

c. Do not leave intake access open and unattended.

C.2.5. Prior to exiting inlet plenum and intake, comply with following items.

a. Clean the intake system thoroughly.

b. Account for all tools, parts, and other material brought into the area.

C.2.6. Prior to entering exhaust, comply with following items.

a. Ensure conducting gas free inspection.

b. Wear and use PPE items.

c. Do not leave exhaust access open and unattended.

C.2.7. Prior to exiting exhaust, comply with following items.

a. Clean the exhaust system thoroughly.

b. Ensure no foreign materials and tools are left inside exhaust area.

D. PREPARATION:

D. 1. Open manhole cover plate at right above NO.2 Gas Turbine Module (GTM) for accessing exhaust collector inside.

D.2. Install Foreign Object Damage (FOD) protection on NO.2 GTM exhaust collector prior to starting work.

D.2 (V) WCS

D.2. 1. Cover or plug following component tightly with proper material.

a. Engine exhaust outer cone opening

b. Drain holes and vent holes of the collector casing

c. Air-oil separator drain opening

Date

d. Module cooling air ejector opening between exhaust duct and collector extension

D.3. Verify installed FOD protection on step D.2.

D.3(V) CodeS2ll/285

Date

E. ACCOMPLISHING WORK:

E.l. Perform subject work described on the TWD.

CAUTION

If any damage is found on installed protections, STOP all work and re-seal the covers.

CAUTION

Do not install scaffolding using exhaust collector gusset.

CAUTION

LM2O-DJA25901-EM011173 Page 3 of4 1/-) JON: 38DJA25901 -AOl /

Ground the welding equipment to the component as close as possible to the welding area to prevent damaging the engine bearings and races.

F. RESTORATION:

F. 1. Restore NO.2 GTM exhaust collector.

F.l(V) WCS Date

F.l.l. Clean work boundary by vacuuming and wiping.

a. Remove installed protections as necessary.

F.l.2. Conduct a closeout inspection ofNO.2 OTM exhaust collector inside with Ship's Chief Engineer or personnel designated by Chief Engineer.

P.1.2(S) Ship's Force

Date

F.1.2(V) CodeS2ll/285__________________ Date

F. 1.3. Close exhaust collector access manhole.

F. 1.4. Comply with reference (e) paragraph WP_002 for performance.

( CLOSE OUT OF MP AN]) WORK ORDER:

G. 1. Attach the completed MP to the associated TWD and route package for closure.

LM2O-DJA25901-EM011173 Page 4 of4 JON: 38DJA25901 -AOl

10/15/20257:23:13AM

2 Kilo Report START END

Ship: USSTR'OLI LHA 7 0/21 05/18/2026

Section I. Identification ¯ Ship's UIC 2. W/C 3. JSN 4. APL/AEL

27501 EMOI 1173 XCOMPARTMNT

Ship's Name 5. Noun Name 6. WD 7. ST 8. CS 9. DF 10. 2L 11. QA

USS TRIPOLI UPTAKE SPACE 4-6 4 0 7 6 0 0

¯ Hull No. 13. ldent/Ser 14. EIC

7 NONE A905000

5. Safety Hazard 16. Location 17. When Discovered Date

4-69-1-0 10/06/2025 12:00AM

Configuration Change * * For INSURV Use *

I. Alterations 19. 20. INSURV No. 21. Suf 22. U 23. S 24. P/F

Section II. Deferral Action S/F Mhrs Exp 26. Defl Dt 27. 5fF Mhrs Rem 28. Deadline Dt

25.00 10/6/2025 12:00:00AM 0.00 5/18/2026 12:00:00AM

Section III. Completion Action Act Tkn 30. S/F Mhrs 31. Compl Date 32. Mnt Time 33. TI 34. Mtr Rdg

Section IV. Remarks/Description Remarks/Description

WHILE CONDUCTING H&J INSPECTION OF NR2 GAS TURB[tlE--SIF DISCOVERED THAT THE TOP ENTRYWAY HANDHOLD INSIDE THE EXHAUST HAD BEEN BROKEN AT THE WELD. rrr In * PTh I_N PTfln fl T$4F MJ -1n --XXX REQUEST OUTSIDE ACTIVITY REPAIR HANDHOLD. SAFETY

CSMP Summary 37. Spec Pur A. B. C. D. E. F. G. H. I. J. K. L.

BROKEN ENTRYWAY HAND HOLD

First Contact 39. Rate 40. Second Contact 41. Pr 42. TA 43. IPN 44. IUC 45. TYC

BARBER GSM1 ACOSTA GSCS 4 1 1

Section V. Supplementary Information Blprnts, Tch Mnls, Plans (on board - y) 47. Pre-arrival/Arrival Conference Rmks rE ect Manager / Port Engineers comment:

IN : 259A10

For Official Use Only

ICN 38DJA25901-AO1

DATE

PR!

CASREP

SPEC DUE JAN

[ROLL-UP OF

S.YAMAGUCHI / S310

U 202fi

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Sakura.Yamaguchi.ja

38DJ225901-A01

38DJ225901_00_A01.pdf