ICA
1500-SERIES-ICA-1
Revision A - 01/22/2009
Page
4
of
15
Instructions for
Continued Airworthiness
1.0 Introduction
1.1 General Product Information
The engine filter system is designed to protect the turbine engine from foreign object
damage and micro erosion when operating in normal and severe environmental
conditions. The Model 1500EFS Engine Inlet Barrier Filter System consists of a duct
assembly, alternate air door assembly, filter element, and low inlet pressure
annunciator system.
The filter element is comprised of a specially formulated polymerized oil suspended by
a pleated wire cloth and cotton fabric matrix for the purpose of attracting and holding
airborne dust particles. These filter elements are serviced by cleaning and re-oiling at
regular intervals or as required based on engine performance loss or by visual
determination that engine performance could be adversely affected prior to the next
scheduled servicing.
The pilot actuated alternate air system is provided to bypass the filter elements in the
event that engine performance is degraded due to filter blockage. The alternate air
system should be inspected at regular intervals or prior to flight into environmental
conditions that may require its use.
1.2 Scope of ICA
This manual describes the airworthiness limitations, service instructions, inspection
procedures, and testing of the engine filter system and its individual components.
Strict adherence to the information given herein will assure maximum filtration benefit
and increased component life.
1.3 Precautions
The following precautions may be used throughout this manual and are defined as
follows:
WARNING:
Maintenance procedure, practice, condition, etc. which if ignored could
result in personal injury or loss of life.
CAUTION:
Maintenance procedure, practice, condition, etc. which if ignored could
result in damage or destruction of equipment.
NOTE:
Maintenance procedure, practice, condition, etc. or a statement which needs
to be highlighted.
