Prolonged Out-Of-Service Care - Cessna Grand Caravan 208B G1000 Manual

CESSNA
MODEL 208B G1000

PROLONGED OUT-OF-SERVICE CARE

Prolonged out-of-service care applies to all airplanes that will not be
flown for an indefinite period (less than 60 days) but which are to be
kept ready to fly with the least possible preparation. If the airplane is to
be stored temporarily or indefinitely, refer to the Airplane Maintenance
Manual for proper storage procedures. The Maintenance Manual
provides amplification for the following procedures:
1. The procedure to be followed for preservation of an engine in
service depends on the period of inactivity and whether or not
the engine may be rotated during the inactive period. The
expected period of inactivity must be established and reference
made to the Engine Preservation Schedule. The preservation
carried out must be recorded in the engine maintenance record
and on tags secured to the engine. The following preservation
schedule lists procedures to be followed:
Under no circumstances should preservative oil be
sprayed into the compressor or exhaust ports of the
engine. Dirt particles deposited on blades and vanes
during engine operation will adhere and alter the airfoil
shape, adversely affecting compressor efficiency.
a. 0 to 7 Days - The engine may be left in an inactive state,
with no preservation protection, provided the engine is
sheltered, humidity is not excessively high, and the engine
is not subjected to extreme temperature changes that would
produce condensation.
b. 8 to 28 Days - An engine inactive for up to 28 days requires
no preservation provided all engine openings are sealed off
and relative humidity in the engine is maintained at less than
40%. Humidity control is maintained by placing desiccant
bags and a humidity indicator on wooden racks in the
engine exhaust duct. Suitable windows must be provided in
the exhaust closure to facilitate observation of the humidity
indicators.
208BPHBUS-00
HANDLING, SERVICE, AND MAINTENANCE
CAUTION
(Continued Next Page)
SECTION 8
8-47
U.S.