PAGE
DATE
PAGE REV
24 July 2019
B
209-00-24C
M24C PLUS FLIGHT MANUAL
65
5.6.8 LIGHTING SYSTEM
1. Landing light ..................................................Function
2. Navigation lights ............................................Function
3. Strobe lights...................................................Function
4. Anti-collision light ...........................................Function
5.6.9 DOOR WARNING SYSTEM
Check the function of the door warning system.
The door warning system is designed to warn the pilot if either of the doors are not correctly
latched and locked. The system incorporates four push-button switches (two on each door)
which detect the location of the aft door pins and the position of the locking handles.
The daily check is designed to confirm correct functionality of the system and detect whether
an open circuit situation has occurred (e.g. a wire has become detached from one of the
switches).
Prior to engine start on the first flight of the day the functioning of the door locking system
should be confirmed by the following tests.
1. With both doors in ‘OPEN’ position and the Master switch ‘ON’ close the pilot door and
then move the pilot handle to the locked position. Then move the co-pilot handle to the
locked position. The warning light should remain illuminated and the rotor rpm gauge
should remain inactive because the co-pilot door is open.
2. Move the co-pilot handle to the open position; move the pilot handle to the open position
and open the pilot door. Close the co-pilot door and move the co-pilot handle to the locked
position; then move the pilot handle to the locked position. Again the warning light should
remain illuminated and the rotor rpm gauge should remain inactive because the pilot door
is open.
3. Move the pilot handle to the open position; close the pilot door and move the pilot handle
into the locked position. The warning light should extinguish and the rotor rpm gauge
becomes active as all doors and handles are now closed and locked. Open the co-pilot
handle to confirm that the light becomes illuminated once more and the rotor rpm gauge
deactivates.
WARNING DANGER:
It is essential that the checks on the door warning system are performed as described
and in this exact order. This will enable each of the four switches functionality to be
determined in turn and a single fault with any of the switches will be detected.
