(e)  
If the face of the FDAU is open, do these steps: 1) Close the face of the FDAU. 2) Tighten the screws on the top and bottom of the FDAU face.

 S 863-005
 (4)  
Close these circuit breakers:

 (a)  On the P11 panel:
 1) 11J7, FLIGHT RECORDER AC
 2) 11J8, FLIGHT RECORDER DC

 (5)  
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 863-046
  GUN 102-999 ú

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 ú ú 03 Page 306 ú May 28/00

A
757 MAINTENANCE MANUAL
 FLIGHT DATA ACQUISITION UNIT (FDAU) - REMOVAL/INSTALLATION
__________________________________________________________
 1.  General
_______
 A.  This procedure has two tasks. The first task is the removal of the flight data acquisition unit (FDAU) and the second task is the installation of the FDAU.
 NOTE:  The digital flight data acquisition unit (DFDAU) is refered to as
____
 the flight data aquisition unit (FDAU).

 B.  The FDAU (M138) is installed in the main equipment center, E3. All electrical connections are made through connectors at the rear of the unit.
 TASK 31-31-03-004-026
 2.  Flight Data Acquisition Unit (FDAU) Removal
___________________________________________
 NOTE:  The digital flight data acquisition unit (DFDAU) is refered to as the
____
 flight data acquisition unit (FDAU) in this task.

 A.  References
 (1)  
AMM 20-10-01/401, E/E Rack Mounted Components

 (2)  
AMM 20-41-01/201, Electrostatic Sensitive Devices

 B.  Access
 (1)  Location Zones
 119BL Main Equipment Center E3-3

 C.  Procedure
 S 864-028
 (1)  Open these overhead panel P11 circuit breakers and attach DO-NOT-CLOSE Tags:
 (a)  
11J7, FLIGHT RECORDER AC

 (b)  
11J8, FLIGHT RECORDER DC

 S 864-041
 CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE
_______ FDAU. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE FDAU.
 (2) Remove the FDAU from the E3-3 equipment rack (AMM 20-10-01/401).
 TASK 31-31-03-404-025
 3.  Flight Data Acquisition Unit (FDAU) Installation
________________________________________________
 NOTE:  The digital flight data acquisition unit (DFDAU) is refered to as the
____
 flight data acquisition unit (FDAU) in this task.

  ú

 31-31-03
 ALL  ú ú 01 Page 401 ú Sep 28/01
　
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