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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) Make sure all the emergency lights come on.
3) Make sure >EMER LIGHTS shows on the primary EICAS display.
a) If >EMER LIGHTS does not show on the primary EICAS display, push CANC on the P10 panel (as many times as it is necessary) until >EMER LIGHTS shows.
(h)
Set the pilot's switch to the armed position. 1) Make sure all the emergency lights stay on.
(i)
Set the pilot's switch to the off position. 1) Make sure all the emergency lights stay on.
(j)
Set the pilot's emergency lights switch to the on position. 1) Make sure all emergency lights stay on.
(k)
Set the pilot's switch to the armed position.
(l)
Set the attendant's switch to the normal position. 1) Make sure the light in the switch goes off. 2) Make sure >EMER LIGHTS does not show on the primary EICAS
display.
a) If >EMER LIGHTS shows on the primary EICAS display, push RCL and CANC on the P10 panel (as many times as it is necessary) until >EMER LIGHTS does not show.
3) Make sure all the emergency lights go off.
(m) Set the pilot's switch to the off position.
S 865-063
(4)
Continue to supply power to the emergency lights system for sufficient time to charge the battery packs for the power supplies.
S 865-064
(5)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
TASK 33-51-00-735-014
4. Emergency Lights - System Test______________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 33-51-04/201, Power Supply
B. Access
(1) Location Zone
200 Passenger Compartment
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33-51-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
C. Procedure
S 865-066
(1)
Supply electrical power (AMM 24-22-00/201).
S 865-068
(2)
At the overhead panel, P5, make sure the pilot's emergency lights switch is set to the off position.
S 735-018
(3)
Do the test:
(a)
Push RCL on the display select panel, P10. 1) Make sure >EMER LIGHTS shows on the primary EICAS display.
a) If >EMER LIGHTS does not show on the primary EICAS display, push CANC on the P10 panel (as many times as it is necessary) until >EMER LIGHTS shows.
(b)
Set the pilot's switch to the armed position.
1) Make sure >EMER LIGHTS does not show on the primary EICAS display. a) If it is necessary, push RCL and CANC on the P10 panel
until you get the necessary condition.
(c)
Open each applicable EMER LTS circuit breaker and attach DO-NOT-CLOSE tag: 1) On the power distribution panel, P7.
a) Write down the time you opened the circuit breakers. b) Make sure all the emergency lights come on.
(d)
Make sure each emergency light stays on for a minimum of 15 minutes before it goes off.
NOTE: The emergency lights will go off automatically when
____ all available power is released from its battery.
1) Make a note of each emergency light that went off in less than 15 minutes.
CAUTION: KEEP THE EMERGENCY LIGHTS ON UNTIL ALL LIGHTS HAVE
_______ GONE OFF OR ONE HOUR HAS GONE BY TO ERASE THE MEMORIES OF THE BATTERIES. THIS ALLOWS THE BATTERIES TO BE CHARGED TO CAPACITY.
2) Keep the emergency lights on until all lights have gone off or one hour has gone by.
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