LifeLimitsEngineComponents.doc

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Overhaul of T700-GE-401C Engine, Modules and Components
Solicitation number
HSCG38-10-R-J00006
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Life Limits on Various Components

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1. Q. What are the average flight hours per year per aircraft?

A. Average flight hours/year is 700 hours for a Coast Guard MH60

2. Q. What is the average Time Since New (TSN) on engines or aircraft?

A. See below.

Task Description Life Limit (Flight Hrs)

STAGE 1 BLISK

6600 Flt Hours

STAGE 2 BLISK

4600 Flt Hours

STAGE 3/4 BLISK

4600 Flt Hours

STAGE 5 BLISK

6600 Flt Hours

CENTRIFUGAL IMPELLER

4600 Flt Hours

COMPRESSOR REAR SHAFT

6600 Flt Hours

COMPRESSOR ROTOR TIEROD

9100 Flt Hours

COMPRESSOR ROTOR SPACER RING

9100 Flt Hours

STAGE 1 FWD COOLING PLATE

STAGE1 AFT COOLING PLATE

4600 Flt Hours

STAGE 2 FWD COOLING PLATE

7800 Flt Hours

STAGE 2 AFT COOLING PLATE

4600 Flt Hours

STAGE 1 DISK

9100 Flt Hours

STAGE 2 DISK

8200 Flt Hours

GAS GENERATOR TURBINE SHAFT

6600 Flt Hours

STAGE 3 DISK

4600 Flt Hours

STAGE 4 DISK

POWER TURBINE SHAFT

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