MD-11 Flight Crew Operations Manual
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Aircraft General -
Description and Operation
Agen.10.29
Cockpit Lighting
A threshold light in the cockpit doorway illuminates the step between the cockpit
and cabin area. It illuminates automatically when cockpit door is open.
Cockpit dome lights provide area lighting. They can be turned on or off with a
switch on the forward overhead panel. They also illuminate when the
THNDRSTRM switch is on.
Floodlights illuminate the Captain's, First Officer's, and center instrument panels,
overhead panel, glareshield, and pedestal. The controls are rotary knobs that vary
light intensity with rotation. When the THNDRSTRM switch is on, all floodlights
illuminate full bright.
The standby lighting system automatically illuminates the left overhead floodlight
if normal electrical power fails to supply dc bus 1.
Panel lights illuminate integrally lighted instruments and lightplates. The controls
are rotary knobs that vary light intensity with rotation.
Six individual controls are installed to vary brightness of the six cockpit CRTs.
Selected brightness is automatically maintained throughout a wide range of light
conditions.
Exterior Lights
Retractable landing lights are located on the forward section of the fuselage. Fixed
landing and taxi lights are located on the nose gear support assembly. The nose
lights are interlocked with the GEAR handle so they will illuminate only when the
GEAR handle is in the DOWN position.
Runway turnoff lights provide additional side and forward lighting during taxiing
and runway turnoff.
Navigation lights consist of a red light on the left wing tip, a green light on the
right wing tip, and a white light on the trailing edge of each wing tip.
Beacon lights consist of two red flashing lights on the fuselage. One is located on
top and the other is on bottom of the fuselage.
Two cargo loading/unloading floodlights are located on the inside face of the main
cargo door. The lights are controlled by a switch located on the main cargo door
control panel.
Wing and engine scan lights illuminate engine 1 and 3, wing leading edge, and
wing surfaces to aid the flight crew in visually checking for icing.
High intensity supplemental lights consist of forward and aft facing strobe lights
on each wing tip.
Logo lights are located in the horizontal stabilizers to illuminate the airline logo
on the vertical stabilizer.
November 16, 2009
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