A
757 MAINTENANCE MANUAL
 (b)  
If the wire braid on the bonding jumper has black or brown deposits, do the task: Electrical Bonding Jumpers in the Fuel System Replacement.

 (c)  
If only the areas near the lugs have black or brown deposits, do the "Electrical Bonding Jumpers Physical Inspection" procedure.

 E.
Electrical Bonding Jumper Mechanical Inspection

 S 772-011
 (1)  
Try to turn the bonding jumper lugs and tube clamps, if applicable, with light finger pressure.

 S 772-012

 (2)  
If the bonding jumper is loose, rework the electrical bond path (SWPM 20-20-00).

 F.
Electrical Bonding Jumper Physical Inspection

 S 202-019
 CAUTION: DO NOT FLEX, BEND OR KINK THE BONDING JUMPERS MORE THAN IS
_______ NECESSARY. IF THE BONDING JUMPERS ARE MOVED TOO MUCH, IT CAN CAUSE THE LOSS OF TIN PLATING ON THE WIRE BRAID OF THE BONDING JUMPER.
 (1)  
Feel along the length of the bonding jumper and visually inspect the bonding jumper to find deterioration.

 (a)  
If there are broken strands in the wire braid, then do the task: Fuel System Electrical Bonding Jumper Replacement.

 (b)  
If the bonding jumper feels rough, do the task: Fuel System Electrical Bonding Jumper Replacement.

 NOTE: This shows there is a loss of tin and possible
____ degradation of the copper in the wire braid.
 (c)  If the bonding jumper does not feel rough and there are no signs of flakes of tin or copper fraying of the wire braid, then the bonding jumper is satisfactory.
 TASK 28-00-00-422-018
 4. Fuel System Electrical Bonding Jumper Replacemnet
__________________________________________________
 A. References
 (1)  
SWPM 20-20-00, Electrical Bonds and Grounds

 B.
Access

 (1)  
Location Zones
 133 Wing Center Section (Left)
 134 Wing Ceter Section (Right)
 511 Leading Edge To Front Spar (Left)
 611 Leading Edge To Front Spar (Right)
 531 Center Wing Tank (Left)

 ú 631 Center Wing Tank (Right) ú
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 28-00-00
 ALL  ú ú 01.1 Page 203 ú Sep 28/02

A

757
MAINTENANCE MANUAL

 (2) Access Panels
 134AZ Center Tanks Access Door (Right)
 134BZ Baffle Door
 134CZ Baffle Door
 134DZ Baffle Door
 511FB Leading Edge Access Panel (Left)
　
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