The effectiveness of Engine Life Usage Monitoring and Parts Management systems is largely determined by the aircraft-specific requirements. This AIR addresses the following areas:

a

Safety.

b

Life-limiting criteria.

c

Life usage algorithm development.

d

Data acquisition and management.

e

Parts life tracking.

f

Design feedback.

g

Cost effectiveness.

This AIR primarily examines the requirements and techniques currently in use, including:

a

Parts classification and control requirements.

b

Failure causes of life-limited parts.

c

Engine life prediction and usage measurement techniques.

d

Method validation.

e

Parts life usage data management.

f

Lessons learned.

g

Life usage tracking benefits.