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Honda Aircraft Company
HA-420
SYSTEMS
POM
DESCRIPTION
HJ1-29000-005-001
October 30, 2016
1-41
The CONTROL MODE switch is an alternate-action push-button switch.
The normal state is white NORM and the non-normal state is amber
HOLD.
The CABIN DUMP switch is an alternate-action push-button switch with
a red flip guard. The normal state is white NORM and the alternate state
is amber DUMP.
Oxygen Panel
The Oxygen Panel is located on the left side of the instrument panel and
is labeled OXYGEN.
The OXY MASK AUDIO switch is an alternate-action push-button
switch. The normal state is white NORM and the alternate state is amber
EMER.
The SUPPLY knob control is a locking pull cable. The supply “on”
position is pushed forward. The “off” position is pulled aft.
The CABIN control is a three-position knob attached to the cabin oxygen
valve. The normal state is up and is labeled NORM. Rotating the knob
counter-clockwise selects the OFF position and rotating it clockwise
selects the DROP MASK position.
NOTE
Since the CABIN knob operates the cabin oxygen valve
directly, rather than an electrical switch, the force required
to rotate it is higher than the other rotating switches. The
required force is reduced when oxygen is flowing.
FOR TRAINING PURPOSES ONLY