INTRODUCTION
Airplane lighting for the Lear 20 series airplanes is divided into interior, exterior, and
emergency (if installed) lighting packages. Interior lighting provides illumination of both
the cockpit and cabin areas under normal conditions. The cockpit area is provided with
general illumination and specific lighting for instruments and map reading. Cabin area
lighting provides illumination for the standard warning signs and specific area illumi-
nation for passenger safety and convenience. Exterior lighting consists of the standard
required lights, and optional packages are available for the wing and tailcone areas.
An optional emergency lighting system may be installed to illuminate the cabin interior
and egress points in the event of airplane electrical power failure.
GENERAL
Cockpit lighting consists of the instrument
lights, floodlight, panel lighting, and map
lights, all adjustable for intensity with rheo-
stat controls. The panel lighting illuminates the
lettering on the various switch panels, pedestal,
and circuit-breaker panels. Side panel map
lights are installed for the pilot’s convenience.
Cabin lighting consists of upper center panel
lights, door entry lights, baggage compart-
ment lights, individual reading lights, and the
No Smoking/Fasten Seat Belts sign. The op-
tional emergency lighting systems illuminate
the upper center panel lights and other lights
at the exits. Exterior lights include landing–taxi
lights, wing and tail navigation lights, anticol-
lision beacons, recognition lights, and high-in-
t e n s i t y s t r o b e l i g h t s . A n o p t i o n a l w i n g
inspection light illuminates the right wing area
to check for ice accumulation or egress.
CHAPTER 3
LIGHTING
3-1
FOR TRAINING PURPOSES ONLY
LEARJET 20 SERIES PILOT TRAINING MANUAL
FlightSafety
international
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