TM 1-1510-262-10
a. Cockpit Lighting.
(1) Utility lights. Two utility lights are located in the cockpit overhead to provide additional instrument
panel IR lighting, as required. The lights are protected by the 7.5-ampere FLT INST circuit breaker, located on
the overhead circuit breaker panel (Fig. 2-12). Variable light intensity, for both lights, is provided through the
INSTRUMENT PANEL rheostat, located in the IR FLOOD LIGHTS switch section, on the overhead control panel.
A switch located on each utility light placarded BRT/DIM/OFF provides individual intensity control.
(2) Glareshield lights. Lights are mounted in the glareshield overhang along the top edge of the instru-
ment panel, providing overall instrument panel IR illumination. The circuit is protected by the 5-ampere circuit
breaker placarded INST INDIRECT on the overhead circuit breaker panel (Fig. 2-12). Control is provided by the
rheostat switch placarded GLARESHIELD on the overhead control panel, located in the IR FLOOD LIGHTS switch
section (Fig. 2-13). Turning the control clockwise from OFF illuminates the lights and increases their brilliance.
(3) Flood light. A single overhead cockpit lood light is installed. This light provides overall IR illumination
of the entire cockpit area. The circuit is protected by the 7.5-ampere circuit breaker placarded FLT INST , located
on the overhead control panel. The rheostat/switch, placarded PED EXT/COCKPIT , located in the IR FLOOD
LIGHTS switch section of the overhead control panel (Fig. 2-13), provides control. Turning the control clockwise
from OFF illuminates the light and increases its brilliance.
(4) Flight instrument lights. Each individual light instrument contains internal lamps for illumination. The
circuit is protected by the 7.5-ampere circuit breaker placarded FLT INST on the overhead circuit breaker panel
(Fig. 2-12). Control is provided by the two rheostat switches placarded PILOT INSTRUMENTS and COPILOT
INSTRUMENTS , located on the overhead control panel (Fig. 2-13). Turning the control clockwise from OFF
illuminates the lights and increases their brilliance.
(5) Engine instrument lights. Each individual engine instrument contains internal lamps for illumination.
The circuit is protected by the 7.5-ampere circuit breaker placarded FLT INST on the overhead circuit breaker panel
(Fig. 2-12). Control is provided by the rheostat switch placarded ENGINE INSTRUMENTS on the overhead control
panel (Fig. 2-13). Turning the control clockwise from OFF illuminates the lights and increases their brilliance.
(6) Overhead panel lights. Lamps illuminating the overhead circuit breaker, control, and fuel manage-
ment panels are protected by the 7.5-ampere circuit breaker, placarded OVHD on the overhead circuit breaker
panel (Fig. 2-12). Control is provided by the rheostat switch placarded OVERHEAD PANEL located on the over-
head control panel (Fig. 2-13). Turning the control clockwise from OFF illuminates the lights and increases their
brilliance.
(7) Subpanel and console lights. Lights on the pilot s and copilot s; subpanels, console edge lighted
panels, mission control panel, and pedestal extension panels are protected by the 7.5-ampere circuit breaker,
placarded SUBPNL & CONSOLE on the overhead circuit breaker panel (Fig. 2-12). Control is provided by the
two rheostat switches placarded SUBPANEL or CONSOLE on the overhead control panel (Fig. 2-13). Turning the
control(s) clockwise from OFF illuminates the lights and increases their brilliance.
(8) Outside air temperature light. Two post lights are mounted adjacent to the outside air temperature
gauge on the left cockpit sidewall. The circuit is protected by the 7.5-ampere circuit breaker placarded FLT INST on
the overhead circuit breaker panel (Fig. 2-12). A pushbutton switch adjacent to the gauge provides control. Light
intensity is not adjustable.
b. Cabin Lighting.
(1) Threshold and spar cover lights. A threshold light is installed just above loor level on the left side of
the cabin, just inside the cabin door. A spar cover light is installed on the left side of the sunken aisle immediately
aft of the main spar cover. Both circuits are protected by a 5-ampere circuit breaker located in the battery box,
and are connected to the emergency battery bus. The switch mounted adjacent to the threshold light controls both
lights. If the lights are illuminated, closing the cabin door will automatically extinguish them.
(2) Cabin aisle lights. Three cabin aisle lights are installed in the cabin aisle. The CABIN LIGHTS
BRIGHT - DIM switch located on the pilot s subpanel 2-11 provides control.
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