LP Strut Cracks MiTech Report_Redacted.pdf

PRELIMINARY COPY

March 22, 2016

Dear Mr. :

SUBJECT: USTS Kennedy

Main Propulsion Low Pressure Turbine

Purchase Order No.:

Reference No.: 167466-002

Attached please find a copy of a report delineating the conditions found on the Low Pressure Turbine

Casing. Also included are the recommended repairs required to ensure the integrity of the subject

Low Pressure Turbine is maintained.

If any questions are generated concerning this report or if MI-TECH, INC. can be of further service, please contact Mr. Jake Duvall, Onsite Field Service Supervisor; Mr. Robert Mimms, Contract

Administrator or the undersigned immediately.

Sincerely, William J. Totten

President cc: Mr. Edward J. Duvall Field Service Supervisor MI-TECH, INC.

Mr. David Sharbo Quality Assurance Director MI-TECH, INC

MI-TECH, INC.

TECHNICAL CONSULTING AND MACHINE SHOP SERVICES

TECHNICAL REPORT

T Mr. W. J. Totten C

O MI-TECH, Inc. C . C

Reference Number 167466-002

Type of Report Condition

Manufacturer Delaval

Page

Customer Name

Customer Reference or Purchase Order Number

Date of Report

Work Location Buzzards Bay MA.

Equipment Description and/or Number

Field Service Supervisor E. J. Duvall

The following report details the conditions found on the Low Pressure Turbine Casing. Also included are the recommended repairs required to ensure the integrity of the subject Low Pressure Turbine is maintained.

I. Conditions Found.

A. Turbine Casing.

1. The internal casing has five casing supports per half extending between the components of inlet section that appear to have multiple linear indications that are completely through the strut.

a) The lower casing port side strut has been cut out completely and the bottom and two struts on the starboard side appear to be cracked through.

b) The upper casing starboard side strut adjacent to the joint also appears to be cracked completely through.

(1) The access to the inlet chamber in the casings current position makes inspection difficult but it appears that the other four support struts in the upper casing are intact.

c) Documentation has been found that indications were noted during a previous inspection conducted in 2002.

II. Recommended Repairs.

A. Turbine Casing.

1. The work scopes required to weld repair the struts are quite extensive and would likely delay the ships scheduled activities. In as much as it is evident that the ship has been operating with these damaged struts for the last fifteen years, It is this writers opinion that the repairs be postponed until the vessels scheduled dry docking in 2017.

T Mr. W. J. Totten C C

O MI-TECH, Inc. C . C

III. Photographic Record.

Lower Casing Starboard Side

O MI-TECH, Inc. C . C

Lower Casing Second Strut Port Side

O MI-TECH, Inc. C . C

Upper Casing Starboard Side