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nearest exit. Many airplanes are equipped with other emergency exit signage
options, including wiring selected passenger compartment reading and table
lights into the emergency lighting system to provide cabin illumination in critical
situations, and / or installing an emergency ßoor path lighting system to provide
exit guidance for an evacuation in instances where smoke might obscure visibility
in the cabin.
This system description is limited to only the basic production installed passenger
compartment lighting:
• No Smoking / Fasten Seat Belt Signs
• Emergency Exit Lights
For information regarding optionally installed ordinance signs and emergency
lighting, see the Completion Center Maintenance Handbook for the particular
airplane.
2. Description of Subsystems, Units and Components:
A. No Smoking / Fasten Seat Belt Signs and Controls:
Basic wiring provisions are installed for NO SMOKING / FASTEN SEAT
BELT ordinance signs. The provisions include a Þve (5) amp circuit
breaker, labelled SIGN LTS, installed in position D-5 on the pilot aft circuit
breaker panel, and control switches for the signs on the lower forward
section of the cockpit overhead panel. See the illustration in Figure 9. The
control switches are in the panel section labelled PASS WARN, and titled
ST BLT for the FASTEN SEAT BELT switch and NO SMK/ST BLT for the
combined NO SMOKING / FASTEN SEAT BELT switch.
Ordinance signs controlled by the cockpit switches are placed throughout
the passenger compartment in accordance with customer designated
interior layouts. In many airplanes, a RETURN TO SEAT sign is installed in
the lavatories, and illuminates when the FASTEN SEAT BELT sign is
selected ON. On most airplanes, the NO SMOKING / FASTEN SEAT BELT
switches are integrated into the cabin audio system, often with dedicated
speakers and audio power supplies. For these airplanes, when either of the
switches are selected ON of OFF, an audio signal sounds in the cabin.
OPERATING MANUAL
PRODUCTION AIRCRAFT SYSTEMS 2A-33-00
Page 21
May 30/02
Revision 7
B. Emergency Exit Lights:
Self contained battery operated emergency exit lights are installed above
the main entrance door and at the emergency exit windows on the left and
right side of the airplane. Additional emergency exit signs are installed in
accordance with customer preferences upon completion of the airplane
interior, and in conformity to FAA regulations. The emergency exit signs are
powered by two (2) ÒDÓ cell size batteries, and illuminate in response to the
mode selected on the switch incorporated into the sign. The sign switch
may be selected to AUTO or ON. In the AUTO mode, the sign will
automatically illuminate if subjected to a force of one and one-half (1½) GÕs
for more than one thirtieth (1/30) of a second. If illuminated in the AUTO
mode, the sign may be reset by cycling the switch to ON and back to
AUTO. If the switch is selected to ON, the sign will illuminate. The
emergency exit signs are detachable from the sign mounts and may be
used as portable illumination devices with the switch selected to ON.
NOTE:
The ÒDÓ cell batteries used in these lights should be
inspected and/or replaced during periodic
maintenance to insure full battery life.
3. Circuit Breakers:
Circuit Breaker Name CB Panel Location Power Source
SIGN LTS P D-5 LEFT MAIN DC
4. Limitations:
There are no limitations established for this system as of this revision.
2A-33-40: Cargo and Service Compartment Lighting System
1. General Description:
The GIV has lighting installed in the baggage compartment for loading / unloading
and illumination for inspection and maintenance of components in the tail
compartment. The lighting installation includes the following subsystems and
components:
• Baggage Compartment Lighting
• Tail Compartment and Service Panel Lighting
2. Description of Subsystems, Units and Components:
A. Baggage Compartment Lights:
Baggage compartment lighting is installed in accordance with customer
preferences during Þnal outÞtting. A typical installation consists of two
ßuorescent lights mounted on the baggage compartment overhead,
controlled by a switch mounted in a panel on the forward baggage
compartment bulkhead. Power for the circuits is typically from the Main DC
bus via a BAGGAGE LTS circuit breaker, usually located on the cabin
circuit breaker panel.
OPERATING MANUAL
2A-33-00 PRODUCTION AIRCRAFT SYSTEMS
Page 22
May 30/02
Revision 7
B. Tail Compartment Lights:
Tail compartment utility lights provide illumination for maintenance and
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湾流4操作手册 Gulfstream IV Operating Manual 2(98)
