Subject Subject No.
Fixed Exit Sign/Light Battery Pack........................................................................... *[6] 33-51-81 Maintenance Practices Battery Replacement
Ceiling-Mounted Exit Sign........................................................................................ *[3] 33-51-91 Removal/Installation
Ceiling-Mounted Exit Sign........................................................................................ *[4] 33-51-92
Maintenance Practices
Relamping
Removal/Installation
Portable Emergency Exit Light................................................................................. *[6] 33-51-101 Maintenance Practices Battery Replacement
Electrically Illuminated Exit Signs ............................................................................ *[5] 33-51-111
Maintenance Practices
Relamp Exit Sign
Remove Exit Sign
Install Exit Sign
Test Exit Sign
Emergency Exit Hatch Actuated Light Switch.......................................................... *[6] 33-51-121 Maintenance Practices
Aisle Lights............................................................................................................... *[5] 33-51-122
Maintenance Practices
Relamp Light
Remove Light Assembly
Install Light Assembly
Test Light Assembly
Emergency Lights Control Panel. ............................................................................ *[5] 33-51-131 Removal/Installation
Flight Deck Emergency Lights. ................................................................................ *[5] 33-51-141 Maintenance Practices Relamp Flight Deck Emergency Light Test Flight Deck Emergency Light
Power Supply........................................................................................................... *[5] 33-51-151 Maintenance Practices Replace Battery Pack
*[1] Wide Body Look Interior *[2] Carry-All Compartment Interior *[3] Standard Passenger Airplanes *[4] Passenger Cargo Convertible Airplanes *[5] ATI Interior *[6] All Except ATI Interior
5C8
Contents 33 Page 8 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jun 20/85
LIGHTS - DESCRIPTION
1. General
A. Power for lighting is principally supplied through individually inscribed circuit breakers in the P6 and P18 circuit breaker panels located aft of the captain’s and first officer’s seats. Generally, lamp numbers are marked adjacent to the socket and are applicable to lamps supplied by any vendor.
B. Control cabin lighting provides general illumination of the control cabin and local illumination of control panels, instruments, and controls. Both red and white lighting is used. Most light controls are on the overhead panels except some of the panel lighting whose controls are on the appropriate panel. Control cabin lights are powered by 28 volts ac except for the compass light, white dome light, and the pilots’ fluorescent background lights; which are 28 volts dc, 28 volts dc, and 115 volts dc, respectively. The control cabin instrument panels use white lighting and are designed using the module concept for easier removal during maintenance.
C. Passenger cabin lighting is accomplished by the use of white incandescent lights and white fluorescent lights, and is achieved principally by the use of ac power. General cabin illumination is provided by passenger cabin window lights and ceiling lights. Emergency lights provide general lights illuminate their respective areas. Threshold and entry lights illuminate the forward and aft door steps and entry areas. Passenger reading lights are located in the passenger service units. Passenger information signs illuminate to convey information to occupants of the passenger cabin and lavatories.
D. Each cargo or service compartment is provided with illumination by dome, flood, or explosion proof lights as required. Switch controls are either multiple or single for each area of illumination. The equipment rack and forward lower service compartment lights, air conditioning compartment lights, and aft accessory compartment lights are controlled by switches within the compartments. The forward and aft cargo compartment lights have switches adjacent to the access doors and in the passenger cabin at the viewing lens. The wheel well lights may be controlled on the forward overhead panel and individually in their respective areas. Power for all cargo and service compartment lights is 28 volts.
527
Nov 15/71 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 33-00 Page 1
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