(3)
For the bonding jumpers used to bond mechanical equipment or tubing, install the new bonding jumper and hardware (SWPM 20-20-00).
(a)
Make sure the mating surface(s) are correctly prepared.
(b)
Make sure the bonding jumper installation gives adequate clearance from the structure, tubing or all fuel system parts.
NOTE: This will prevent abrasion.
(4) Do the "Electrical Integrity Check of the Fuel System Bond Path" procedure.
C. Electrical Integrity Check of the Fuel System Bond Path
NOTE: SWPM 20-20-00 defines the measurement processes necessary for installation of electrical bonding hardware. The fuel system tubing and components often incorporate multiple electrical bonds in series between the component and the primary structure. The measurement of the tubing or component bond is a separate requirement.
(1)
For bonding jumper hardware installations, do the resistance measurement for electrical intergrity (SWPM 20-20-00).
(2)
For the fuel system tubing or components, do the subsequent steps:
(a)
Measure the total resistance from the tubing or component, to the adjacent primary structure.
(b)
Make sure the resistance is not more than 0.10 ohms.
500 28-00 Sep 01/02 Page 202
4. Fuel System Static Bond Path, No. 1 Tank - Inspection
A. References
(1)
AMM 28-10-0/201, Fuel Tanks
(2)
AMM 28-11-11/401, Wing Fuel Tank Access Panels
(3)
DWG 65-48403, L.H. INBD. INSPAR AREA, W.B.L. 72.24 - 227
(4)
DWG 65-48405, L.H. OUTBD. INSPAR AREA, W.B.L. 227 TO TIP
B. Procedure
(1)
For the area in the No. 1 fuel tank between rib No. 1 (side-of-body rib at WBL 71.24) and rib No. 5 (at WBL 157.00), do these steps:
(a)
Remove access panel No. 1 on the left wing (AMM 28-11-11/401).
(b)
Go into the opening for access panel No. 1 (AMM 28-10-0/201).
(c)
Do this task for all bonding jumpers between rib No. 1 and rib No. 5: Inspection of the Electrical Bonding Jumpers in the Fuel System. 1) Refer to drawing 65-48403 for bonding jumper locations.
(d)
If access is not necessary for subsequent tasks, install access panel No. 1 (AMM 28-11-11/401).
(2)
For the area in the No. 1 fuel tank between rib No. 5 (rib at WBL 157.00) and rib No. 7 (rib at WBL 198.60), do these steps:
(a)
Remove access panel No. 2 on the left wing (AMM 28-11-11/401).
(b)
Go into the opening for access panel No. 2 (AMM 28-10-0/201).
(c)
Do this task for all bonding jumpers between rib No. 5 and rib No. 7: Inspection of the Electrical Bonding Jumpers in the Fuel System. 1) Refer to drawing 65-48403 for bonding jumper locations.
(d)
If access is not necessary for subsequent tasks, install access panel No. 2 (AMM 28-11-11/401).
(3)
For the area in the No. 1 fuel tank between rib No. 7 (rib at WBL 198.60) and rib No. 8 (rib at WBL 227.00), do these steps:
(a)
Remove access panel No. 3 on the left wing (AMM 28-11-11/401).
(b)
Go into the opening for access panel No. 3 (AMM 28-10-0/201).
(c)
Do this task for all bonding jumpers between rib No. 7 and rib No. 8: Inspection of the Electrical Bonding Jumpers in the Fuel System. 1) Refer to drawing 65-48403 for bonding jumper locations.
(d)
If access is not necessary for subsequent tasks, install access panel No. 3 (AMM 28-11-11/401).
(4)
For the area in the No. 1 fuel tank between rib No. 8 (rib at WBL 227.00) and rib No. 9 (rib at WBL 254.00), do these steps:
(a)
Remove access panel No. 4 on the left wing (AMM 28-11-11/401).
(b)
Go into the opening for access panel No. 4 (AMM 28-10-0/201).
(c)
Do this task for all bonding jumpers between rib No. 8 and rib No. 9: Inspection of the Electrical Bonding Jumpers in the Fuel System. 1) Refer to drawing 65-48405 for bonding jumper locations.
(d)
If access is not necessary for subsequent tasks, install access panel No. 4 (AMM 28-11-11/401).
500
Sep 01/02 28-00 Page 203
(5)
For the area in the No. 1 fuel tank between rib No. 9 (rib at WBL 254.00) and rib No. 10 (rib at WBL 279.25), do these steps:
(a)
Remove access panel No. 5 on the left wing (AMM 28-11-11/401).
(b)
Go into the opening for access panel No. 5 (AMM 28-10-0/201).
(c)
Do this task for all bonding jumpers between rib No. 9 and rib No. 10: Inspection of the Electrical Bonding Jumpers in the Fuel System. 1) Refer to drawing 65-48405 for bonding jumper locations.
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