Check the air scoops for condition
and free movement.
Inspect cabin heat and defrost con-
trols for operation and condition.
Check for operation, restricted
movement, interference or unusual
play. Check defrost valve for opera-
tion.
Inspect Communication equipment
for general condition, operation and
security of installation. Inspect Audio
panel for general condition, operation
and security of installation.
Check antennas, for damage and se-
curity of installation.
Check electrical bonding to the a/c.
Check for proper battery installation.
Inspect battery cables and housing.
Check vent and drain lines free of ob-
structions.
Remove the battery and perform ca-
pacity test. Re-install battery if air-
worthy.
Inspect External Power Receptacle
for absence of damage, corrosion and
arching.
Inspect circuit breakers panels for
general condition and security of in-
stallation. Inspect breakers markings
for their readability and wear.
Check the hardware and related con-
nection behind the instrument panel
for condition, corrosion, deformation
and damage
Perform overvoltage relay test