Honda Aircraft Company
HA-420
SYSTEMS
POM
DESCRIPTION
HJ1-29000-005-001
October 30, 2016
1-17
A pressure relief valve provides pressure equalization prior to opening
and enhances the resistance to unlocking when cabin pressure is
increased.
Emergency Exit Door
The Emergency Exit Door (EED) is located on the right side of the
fuselage. This door is hinged on the bottom and opens inward.
The door is operated by pulling a latching handle mounted behind an
interior cover. Switches are mounted in the latching mechanism to
provide cockpit feedback of status. On the outside, there is an integral
pressure valve that can be depressed to unlatch the door. This pressure
valve will equalize cabin pressure with ambient when actuated. The door
can be secured from the inside by means of a stand-alone security device.
The door has a window and a passively inflated seal, which is
pressurized by cabin pressure.
CAUTION
Be careful installing the EED after removal. Verify the
interior operation is free of interference. The posts
installed on the fuselage can cause damage to the seal.
FOR TRAINING PURPOSES ONLY
