Figure 2-21. Overhead Control Panel
radio lights. The CABIN circuit breaker protects the aft
the face of the gage. The light is protected by a 5-mpere
cabin and utility lights.
circuit breaker on the right subpanel placarded FLT INST
The free air temperature light
c. Interior Lighting Controls. Two white flood lights
construction to the instrument post lights.
are integrally mounted on the bottom part of the
e. Magnetic Compass Light.
controlled by a rheostat switch, placarded OVERHEAD
compass light, above the face of the compass, makes
FLOOD LIGHTS, located on the overhead control panel.
the compass card readable. This light is controlled by a
One cockpit utility light assembly is mounted adjacent to
the inertia reel release handle on each side of the
LIGHTS - BRT, OFF, located on the overhead control
cockpit. The multipurpose light assembly is designed to
serve either as a red or white map light, or as a red or
circuit breaker, placarded FLT INST, on the right
white flood light.
The different lighting effects are
controlled by depressing the red button on the top of the
light assembly and turning the lens assembly to the
f. Subpanels and Copilot's Circuit Breaker Panel
desired position. The light is controlled by a rheostat
The plastic cover panels on the
and push-button switch at the aft end of the light
subpanels and the copilot's circuit breaker panel are
assembly. The rheostat is used during normal operation
illuminated by edge lights. The edge-light socket is
of the light and is placarded OFF, DIM, and BRIGHT.
recessed into the plastic panel. The cap assembly,
When depressed, the push-button switch provides
which contains a red filter, screws down against the
momentary full light output regardless of the rheostat
plastic panel. The edge lights on the subpanels are
position. A swivel-hinge allows the light to be positioned
controlled by a rheostat-switch, placarded SUBPANEL &
as desired. The light assembly can be removed from the
CONSOLE LIGHTS, on the overhead control panel
base assembly to provide more mobility in the use of the
light. The overhead panel flood lights are protected by a
ampere circuit breaker, placarded FED & SUB PANEL,
5-ampere circuit breaker, placarded OVHD & FUEL PNL
on the right subpanel (fig. 2-7). The cockpit utility light
assembly is protected by a 5-ampere circuit breaker,
g. Normal Operation of Interior Lights. Normal
operation will consist of placing the MASTER PANEL
LIGHTS switch ON, then at the pilot's choice turning
d. Free Air Temperature Light.
The free air
individual lights ON or OFF or readjusting the
temperature light is mounted overhead in the cockpit
established brightness level at which they illuminate
adjacent to the free air temperature gage. The light is
when the master panel lights switch is positioned ON.
operated by the push-button switch, placarded FREE
The passengers individually control the lights at their
respective seats or station.