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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
 2)  Push BIT TEST button three times in less than 2 seconds, and do a check for present faults as follows:
 NOTE: This procedure will erase all stored past faults.
____
 3)  Push the BIT TEST button one time after the other to see each column on the face panel.
 4)  Push the BIT TEST button two times in less than 1 second, and make sure the indications that follow come on momentarily in the sequence shown:
 FSEU-1
______
 INDICATION__________ LOCATION TRAILING EDGE LIGHT P3 LEADING EDGE LIGHT P3 TE FLAP DISAGREE UPPER EICAS SCREEN TE FLAP ASYM UPPER EICAS SCREEN LE SLAT DISAGREE UPPER EICAS SCREEN LE SLAT ASYM UPPER EICAS SCREEN FLAP LOAD RELIEF UPPER EICAS SCREEN FLAP/SLAT ELEC *[2] EICAS STATUS PAGE
 FSEU-2
______
 INDICATION__________ LOCATION TRAILING EDGE LIGHT P3 LEADING EDGE LIGHT *[1] P3 TE FLAP DISAGREE UPPER EICAS SCREEN TE FLAP ASYM UPPER EICAS SCREEN LE SLAT DISAGREE UPPER EICAS SCREEN LE SLAT ASYM EICAS STATUS PAGE FLAP/SLAT ELEC *[2] UPPER EICAS SCREEN
 FSEU-3
______ INDICATION__________ LOCATION FLAP/SLAT ELEC *[2] EICAS STATUS PAGE
 *[1]  The LEADING EDGE light will come on only if the LE slat alternate drive is armed (the switch light will be on) while the FSEU-2 BITE test is run.
 *[2]  The EICAS status page must be on for message to show.
 G.  Flap/Slat Electronic Unit (FSEU) - Test (-40 FSEU) (Fig. 506)
 S 715-160
 (1)  
Do the FSEU test that follows:

 (a)  
Push the ON/OFF switch on the face panel of the FSEU to show the EXISTING FAULTS? message on the display.

 (b)  
Push the YES switch on the FSEU.

 (c)  
Make sure the NO FAULTS message shows on the display.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 (d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

A
757 MAINTENANCE MANUAL
Push the MENU switch on the face panel of the FSEU to show the
 EXISTING FAULTS? message on the display.
Push the NO switch two times to show the GROUND TESTS? message
 on the display.
Push the YES switch to show the FLT DECK TEST? message on the
 display.
Push the NO switch to show the DISPLAY TEST? message on the
 display.
Push the YES switch.
Make sure all LED's on the face panel of the FSEU come on.
Push the MENU switch on the face panel of the FSEU until the
 EXISTING FAULTS? message shows on the display.
Push the NO switch two times to show the GROUND TESTS? message
 on the display.
Push the YES switch to show the FLT DECK TEST? message on the
 display.
Push the YES switch on the face panel of the FSEU and make sure
 the indications that follow show momentarily at the locations

 that follow:
 FSEU-1______
 INDICATION__________  LOCATION________
 TRAILING EDGE LIGHT  P3
 LEADING EDGE LIGHT  P3
 TE FLAP DISAGREE  UPPER EICAS SCREEN
 TE FLAP ASYM  UPPER EICAS SCREEN
 LE SLAT DISAGREE  UPPER EICAS SCREEN
 LE SLAT ASYM  UPPER EICAS SCREEN
 FLAP LOAD RELIEF  UPPER EICAS SCREEN
 FLAP/SLAT ELEC *[2]  EICAS STATUS PAGE
 FSEU-2______
 INDICATION__________  LOCATION________
 TRAILING EDGE LIGHT  P3
 LEADING EDGE LIGHT *[1]  P3
 TE FLAP DISAGREE  UPPER EICAS SCREEN
 TE FLAP ASYM  UPPER EICAS SCREEN
 LE SLAT DISAGREE  UPPER EICAS SCREEN
 LE SLAT ASYM  EICAS STATUS PAGE
 FLAP/SLAT ELEC *[2]  UPPER EICAS SCREEN
 FSEU-3______
 INDICATION__________  LOCATION________
 FLAP/SLAT ELEC *[2]  EICAS STATUS PAGE

 *[1]  The LEADING EDGE light will come on only if the LE slat alternate drive is armed (the switch light will be on) while the FSEU-2 BITE test is run.
 *[2]  The EICAS status page must be on for message to show.
　
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