4. Scheduled maintenance
Perform lubrication tasks: refer to
Chapter 05-30 for Lubrication Charts
and related frequencies.
Before installing the caps removed
for maintenance purposes, inspect for
absence of loose tools, especially in
correspondence of the flight controls.
Then make sure all inspection caps
are installed and secured.
Remove cowlings and check them for
condition. Check fasteners and hinges
for condition.
Check the integrity of ablative cowl-
ing coating (internal side of engine
cowlings). Repaint if necessary.
Inspect internal placards, check for
their readability and wear.
Inspect external placards and ID
board: check for readability and wear
Cabin heat valve: check for cracks
and security of installation.
Control the Cabin Heat valve return
spring.
Perform a cabin heat valve control
cable rigging.
Control the hoses condition of Heat-
ing system. No damage is allowed.
Control fasteners.
Control cabin heat control knob and
carburetor heat control knob for con-
dition.