ATA 54    Pylons

 

 

 

 

 

Spanners:       1-5/16 inch 

                        1-3/8 inch

                        1-1/2 inch

                        1-5/8 inch

                        2-1/8 inch

 

Tip: The whole aft side of the pylon fairing can be removed, see tip 2 on this page. This makes the area very accessible for this modification and other work to be done there. (for example the Rubstrip modification)

 

 

 

 

 

To get very good access at the aft pylon area, needed for modifications (rubstrips etc), you can easily remove the complete aft fairing.

Remove all pointed connections, and you can lift it with 2 persons from the aircraft.

 

-2 attachment bolts forward

-2 attachment bolts aft

-1 bracket at the front

-1 diagonal strut at the fwd point

-1 small bolt at the aft upper side (flaps down to get access!)

-1 drainline coupling

See photo's !

 

When removing the upper aft pylon fairings 431CL, 431CR, 441CL or 441CR, they are attached to the structure with a large bonding jumper. If this jumper needs replacement for any reason, it is very hard to find in the IPC.
It is mentioned in the IPC under ATA 36-13-51-02 item 5 detail B and D.  P/n at this moment is 316A2100-2.