LAV PRI ON Light
Comes on to indicate the forward upper deck Lavatory door is locked with LAV PRI mechanism.

Crew Rest Call Light
Comes on when a Crew Rest area, either UPR or LWR BUNK is called Goes off when the associated area responds to the call.

LAV PRI Button
Turns on the ON light on the passenger sign module and activate a lock on the forward upper deck Lavatory for crew use. The lock does not prevent opening the Lavatory door from the inside.

Crew Rest Call Switch
When held momentarily to UPR/LWR BUNK, will turn on the CALL light on the passenger sign module and turn on a light and sound a chime in the associated Crew Rest area. When the Crew Rest area responds, the CALL Light on the passenger sign module will go off. Toggle switch is spring loaded to center.

OBS Audio ENT Switch
Allows receiver selected on the First Observer's Audio control panel to be broadcast on channel 14 of the Audio entertainment system.

FLT Deck Door Switch

• LKD - Indicates Door solenoid latch is Locked. Lock engaged when Door is closed. Door Unlocks with loss of Electrical power.
• UNLKD - Indicates solenoid latch is Unlocked.

NO Smoking Selector

• OFF- Turns OFF sign
• AUTO- NO SMOKING sign comes on when the Landing Gear is extended. After takeoff with the Landing Gear up the NO SMOKING signs go OFF. Signs come automatically when cabin altitude exceeds 10,000 feet.
• ON- Turns on sign.

Seatbelts Selector

• OFF- Turns OFF sign
• AUTO- The FASTEN SEATBELT sign are OFF with the Landing Gear and Flaps up and the airplane above 10,300 feet. During landing when the airplane descends below 10,300 feet or when the Landing Gear or Flaps are extended, the FASTEN SEATBELT signs will come on. Signs come on automatically when cabin altitude exceeds 10,00 feet.
• ON- Turns on sign.