737 MAX Flight Crew Operations Manual
Communications -
Controls and Indicators
MN-FLT-OH-201
5.10.15
3
Passenger Address (PASS ADDRESS) Hand Microphone Jack
With microphone installed:
• used to make PA announcements
• bypasses ACPs.
4
INTERPHONE FLIGHT Jack
Connects ground crew to flight interphone system.
5
Flight Deck / Attendant PA Hand Microphone
Used to make PA announcements.
Cockpit Voice Recorder
1B401, 1B402, 1B801 - 1B824
1B786
1
Area Microphone
1B801 - 1B824
Active anytime 115V AC is applied to airplane or;
1B401 - 1B786, 1J585 - 1J594
Activated when an engine is started or the VOICE RECORDER switch is placed
in the ON position.
ERASE
STATUS
HEADPHONE
COCKPIT VOICE RECORDER MICROPHONE MONITOR
TEST
1
5
FORWARD OVERHEAD PANEL
2
3
4
TEST
COCKPIT VOICE
RECORDER
HEADSET
ERASE
HOLD 5 SEC
1
FORWARD OVERHEAD PANEL
3
5
4
2
October 26, 2021