MECH Button - The MECH button initiates a call to ground personnel. When pushed, the cockpit call light illuminates on the external service interphone panel, and an external horn sounds. When released, the external horn is silenced. The cockpit call light remains illuminated until the reset switch, located on the external service interphone panel is pushed.
FWD/AFT - When the FWD or AFT call button is pushed:
- A pink light illuminates at the corresponding flight attendant area call panel
- A "CAPTAIN CALL" message appears on the corresponding flight attendant indication panel
- A high/low chime sounds through the corresponding loudspeaker