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时间:2011-04-10 09:38来源:蓝天飞行翻译 作者:航空
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 (a)  Do not release the test switch until one of these EICAS messages shows:
 NOTE: If you release the switch before the EICAS message
____ shows, the test was not completed.
 1) "FIRE TEST FAIL"
 2) "TEST PASSED"

 (b)  While the test continues, the EICAS message TEST IN PROGRESS will show on the display.
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747-400 MAINTENANCE MANUAL
 (c)  Make sure that the EICAS message TEST PASSED shows when the test is completed.
 NOTE: The EICAS message FIRE TEST FAIL can show if a
____ circuit breakers is open or if a fault exists on a related fire/overheat systems.
 S 745-002
 (2)  Make sure that you see these conditions:
 (a)  
The red MAIN DECK cargo warning light is on, on the P5 panel.

 (b)  
The red master WARNING light is on, on the P72 main instrument light shield.

 (c)  
The alarm bell operates.

 (d)  
Make sure these EICAS messages do not show:
 1) FIRE MAIN DECK
 2) FIRE MN DK AFT
 3) FIRE MN DK FWD
 4) FIRE MN DK MID

 

 S 865-011
 (3)  
Push the red WARNING light on the main instrument light shield panel (P72).

 S 745-012

 (4)
Make sure that the master WARNING lights and the alarm bell go off.

 S 865-228

 (5)  
Release the FIRE/OVHT TEST switch.

 (6)  
Make sure that the data does not show on the EICAS CRT.

 S 865-085

 (7)  
After the switch is released for approximately twenty seconds, make sure the status EICAS messages for the main deck cargo compartment smoke detection system do not show on the screen.

 E.
Operational Test, with the CMC


 S 745-014
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 S 865-015
 CAUTION: MAKE SURE THAT YOU SET THE GROUND TEST SWITCHES TO NORM WHEN
_______ THE TEST IS COMPLETED. IF YOU DO NOT SET THE SWITCHES TO NORM, THE SYSTEM WILL NOT OPERATES CORRECTLY.
 (1)  Set one of these switches to the "ENABLE" position:
 (a)  
S2089 Ground Test Enable Switch (P461)

 (b)  
S2090 Remote Test Enable Switch (RCDU)


 S 865-016
 (2)  
Get access to the CMC main menu.

 S 865-017

 (3)
Push the line select key (LSK) adjacent to the "<GROUND TEST".

 S 865-018

 (4)  
Push the LSK adjacent to the "<26 FIRE PROTECTION".

 S 865-019

 (5)  
Push the LSK adjacent to the "<FIRE SYSTEM TEST" on the GROUND TESTS menu.

 S 745-020

 (6)  
The "IN PROGRESS" message will show while the test continues.

 S 745-021

 (7)
When the test is completed, the screen will show "PASS" or "FAIL>".

 S 745-022

 (8)  
If the screen shows "PASS", the test is complete.

 S 745-089

 (9)
If FAIL> shows on the CDU, push the LSK adjacent to the FAIL>.


 (a)  Use the NEXT PAGE or PREV PAGE button to look at all of the data that shows.
 S 865-024
 (10) Set these two switches to "NORM":
 (a)  
S2089 Ground Test Enable Switch (P461)

 (b)  
S2090 Remote Test Enable Switch (RCDU)


 F. Put the airplane in it's usual condition.
 S 865-026
 (1)  Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

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