757
MAINTENANCE MANUAL

FLAP LEVER XMTR  DATA LING INOP  LEVER NOT IN DETENT 
FLAP PDU XMTR  FAILED FSEU  NO MOTION 
SLAT PDU XMTR  MULT ALT CMD  NOT IN POSN 
LEFT FLAP XMTR  FSEU ARM DISAG  LEFT WING ASYM 
RIGHT FLAP XMTR  FSEU POWER  RIGHT WING ASYM 
LEFT SLAT XMTR  FLAP SYSTEM FAULT  ALT ARM DISAG 
RIGHT SLAT XMTR  SYSTEM FAULT SLAT  SLAT LOSS 
AUTO SLAT CKT  SYSTEM ALT ARMED  ISLN VALVE FLAP 

3
Flap/Slat Electronic Units (FSEU's)
Figure 201 (Sheet 2)

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757 MAINTENANCE MANUAL
 (h)  
11G22, FLAP SLAT ELEC UNIT 3 CONT

 (i)  
11G23, FLAP SLAT ELEC UNIT 3 SENSOR

 S 022-010
 (5)  Remove the front hold-down extractors and pull the FSEU from the rack (AMM 20-10-01/401).
 TASK 27-51-01-422-011
 3.  Install Flap/Slat Electronic Unit (Fig. 201)_________________________________
 A. References
 (1)  
AMM 06-41-00/201, Fuselage Access Doors and Panels

 (2)  
AMM 20-10-01/401, E/E Rack-Mounted Component

 B.
Access

 (1)  
Location Zone
 119 Main Equipment Center
 211/212 Control Cabin - Section 41
 821 Forward Cargo Door

 C.
Install the FSEU

 S 422-012
 (1)  Install the FSEU in rack with hold down extractors
 (AMM 20-10-01/401).

 NOTE:____You do not need to test each FSEU. Do the test that follows on the FSEU that you installed.
 S 862-013
 (2)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:

 (a)  
11C14, FLAP SLAT ELEC UNIT 2 POWER

 (b)  
11C15, FLAP SLAT ELEC UNIT 2 CONT

 (c)  
11C16, FLAP SLAT ELEC UNIT 2 SENSOR

 (d)  
11G12, FLAP SLAT ELEC UNIT 1 POWER

 (e)  
11G13, FLAP SLAT ELEC UNIT 1 CONT

 (f)  
11G14, FLAP SLAT ELEC UNIT 1 SENSOR

 (g)  
11G21, FLAP SLAT ELEC UNIT 3 POWER

 (h)  
11G22, FLAP SLAT ELEC UNIT 3 CONT

 (i)  
11G23, FLAP SLAT ELEC UNIT 3 SENSOR

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A

757 MAINTENANCE MANUAL
 S 862-088
 (3) Close the forward (No. 1) cargo door, 821 (AMM 06-41-00/201).
 TASK 27-51-01-722-005
 4.  Test the FSEU_____________
 A. References
 (1)  
AMM 24-22-00/201, Electrical Power - Control

 (2)  
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (3)  
AMM 34-21-00/501, Inertial Reference System

 B.
Access

 (1)  
Location Zones 119 Main Equipment Center 211/212 Control Cabin - Section 41 (Left)/(Right)

 C.
Prepare for Test

 S 862-016
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 862-017

 (2)  
Make sure the trailing edge flaps (TE flaps) and leading edge slats (LE slats) are in the fully retracted position, and the flap control lever is in the zero (FLAPS UP) detent.

 S 862-018

 (3)  
Make sure the arming switches for the alternate drive of the TE flaps and LE slats on the first-officer's main-instrument panel, P3, are not in the armed position (switch lights off).

 S 862-019

 (4)  
Make sure the position selector switch for the alternate flaps/slats on the P3 is in the NORM position.

 S 862-020

 (5)
Make sure these circuit breakers on the P11 panel are closed:

 (a)  
EICAS (6 locations)
　
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