Honda HondaJet HA-420 Pilots Operating Manual page 32

Honda Aircraft Company
HA-420 SYSTEMS
POM DESCRIPTION
The MED has a latch/lock system with latch and locking handles that
actuate the door mechanisms. The lock system has a key-lock security
feature which can be used to secure the aircraft from unauthorized entry.
When the door is operated from the inside, the door key-lock does not
interfere with the operation of the latch and locking system of the door.
The locks and latches on the primary latching system have a switch that
provides status information to the flight deck. There is an inspection
window to examine the primary and secondary locking system status.
From the outside, a disengaged latch is indicated by the latch handle not
being flush with the airplane skin, exposing a red surface. On the inside
of the cabin, a disengaged latch is indicated by bright orange surfaces on
the inside of the latch opening and the latch handle.
When the door latch system is disengaged, gravity assists opening the
door. A spring and cable system, located in the door, assists closing the
door.
The door has an integral stair that is installed on the door structure. The
second step can be manually moved down to expose the interior
latch/lock handles as the door is closed.
EFFECTIVITY: 011-040
Two passively inflated seals are mounted on the fuselage structure
(inboard seal) and on the door structure (outboard seal) respectively.
Only the outboard seal acts as a primary door seal to form a pressure
boundary once the door is closed, and the cabin is pressurized. Although
the inner seal is pressurized, it only functions as an acoustic seal.
EFFECTIVITY: 041-999
A passively inflated seal is mounted on the door structure (outboard
seal). The outboard seal acts as a primary door seal to form a pressure
boundary once the door is closed, and the cabin is pressurized
HJ1-29000-005-001
October 30, 2016 1-16
FOR TRAINING PURPOSES ONLY