P2012
AIRCRAFT MAINTENANCE MANUAL
ATA 28-20-00 "Pressure Switch Test" )
ATA Aircraft
Zone
Maintenance Task Frequency
A B C D E
HEATING AND VANTILATION
21-00 Heating and
ventilation
Inspect cockpit and cabin ventilation system. Check NACA inlet,
heating and blowers, air ducts and air scoops for obstruction and
damage operation.
X
21-00 Heating and
ventilation
Check the air scoops for condition and free movement
X
21-00 Heating and
ventilation
Inspect pilot heaters and defrost controls/blowers for operation and
condition. Check for operation, restricted Heating and movement,
interference or unusual play. Check defrost emergency valve for
correct airflow deviation to defrost scoops.
X
ATA Aircraft
Zone
Maintenance Task A B C D E
COMMUNICATION SYSTEM
23-00 Communic
ation
Inspect audio panel for general condition, operation Communication
and security of installation.
X
23-00 Communic
ation
Check antenna. Check mounts for damage and Communication
security.
X
23-00 Communic
ation
Check static dischargers for condition. (Periodic inspection)
550 or Annually
23-00 Communic
ation
Check static dischargers for electrical bonding (Heavy inspection)
X
23-00 Communic
ation
Check connection system (Bonding transponder)
Refer to Local
Rules
ATA Aircraft
Zone
Maintenance Task Frequency
A B C D E
ELECTRICAL POWER
24-00 Electrical
System
Check batteries installation. Inspect battery cables and housing.
Check vent lines free of obstructions.
X
24-00 Electrical
System
Perform a visual inspection and capacity check on three batteries.
According to battery Installation Manual
Every 24 months ref.
CMM (see True Blue
Power Instal. Man. and
Oper. Instr. - 9018047)
or ATA 24
24-00 Electrical
System
Inspect External Power Receptacle for absence for conditon and
security.
X
05-20-00
Page 16
5
th
Edition - Rev. 0
2022, Jan 14
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