MD-11 Flight Crew Operations Manual
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Emergency Equipment -
Description and Operation
Emer.10.3
Removing and pulling any mask from a single or multiple mask unit will initiate
the oxygen generating process. Oxygen will automatically flow through all the
masks in that compartment. Oxygen will be supplied for a minimum of 15 minutes
of continuous use. Oxygen masks are continuous flow type and the flow rates are
low, therefore, reservoir bags may not fully inflate between breathing cycles.
CAUTION: Oxygen generator temperature may reach 260 °C when
generating oxygen. Do not touch generator or attempt to replace
mask into holder.
When passenger oxygen masks are dropped the video system is shut down.
On passenger aircraft, 10 percent extra masks are installed for attendants-in-aisle
and infants-in-arms.
Emergency Lighting
The emergency lighting system will illuminate automatically when primary
lighting fails. The emergency lighting system can also be turned on manually from
the cockpit or purser work station.
The emergency lighting system consists of:
• Cockpit ceiling lights.
• Cabin ceiling lights.
• Exit sign lights.
• Door handle lights.
• Aisle lights.
• Floor escape path lights.
• Cross aisle flood lights.
Electrical power for the emergency lighting system is supplied by the airplane
electrical system or independent emergency lighting batteries installed.
Passenger aircraft have six batteries.
The batteries are self-contained and continuously charged. Batteries are
maintained at full charge by individual chargers powered from the right
emergency ac bus. When fully charged, the batteries will provide sufficient power
to operate the emergency lights for at least 10 minutes.
Power to the emergency lighting system is provided sequentially in the following
priority:
• Right emergency ac bus.
• Left emergency dc bus.
• Emergency lighting batteries.
Status of the emergency lighting system will be annunciated by alerts on the EAD
and SD.
October 02, 2006
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