Engine Inertial Separator Procedures - Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

CESSNA SECTION 4
MODEL 208B 867 SHP NORMAL PROCEDURES
GARMIN G1000

ENGINE INERTIAL SEPARATOR PROCEDURES

An INERTIAL SEPARATOR system is built into the engine air inlet duct
to prevent ice buildups on the compressor inlet screen. The INERTIAL
SEPARATOR control should be moved to the BYPASS position prior to
running the engine during ground or flight operation in visible moisture
(clouds, rain, snow or ice crystals) with an OAT of 5°C (41°F) or less.
The BYPASS mode can also be used for ground operations or takeoffs
with dusty, sandy field conditions to minimize ingestion of foreign
particles into the compressor. Refer to Section 5, Performance, for
performance losses associated with the INERTIAL SEPARATOR in the
BYPASS mode.
The NORMAL mode is used for all other operating conditions, since it
provides substantial inlet ram recovery. This results in more efficient
engine operation and higher critical altitude for a particular power
setting.
Do not return the INERTIAL SEPARATOR to NORMAL until after
engine shutdown and inspection if icing conditions are encountered.
Refer to Section 7, Airplane and System Description, Engine Air
Induction System for further details regarding the INERTIAL
SEPARATOR.
FAA APPROVED
208BPHCUS-00 U.S. 4-53