Thrush Aircraft S2R-R1340 Maintenance Manual page 227

If eddy current method of inspection was used, follow only the applicable portions of these
instructions.
o Refinish areas where paint was removed, and other areas as necessary, with
epoxy primer and a good aircraft grade top coat.
o Grease the new NAS bolts and holes in the splice block halves with Moly-Disulfide
grease.
o Install the new MS20002C washers on the new attach bolts, being sure the
countersink of the washers is facing the bolt head. Insert the bolts into the lower
splice block half until the ends are flush with the splice block surface.
o Grease the holes through the lower spar cap with Moly-Disulfide grease, position
the lower splice block half over the holes, and push the bolts through the lower
spar cap until flush with the upper surface.
o Position the upper splice block half over the bolts in the lower spar cap and push
the bolts through the upper splice block half.
countersunk) washers over the bolts and thread the new nuts onto the bolts.
o Remove the upper splice block tube nuts and install new 20239-4 tube nuts in their
place. Slip the new 20240-1 locking tubes over the upper tube nuts and then
install the new 20239-4 tube nuts on the lower bolts.
o Snug the nuts down and then torque them per Table 7-3.
o Using the existing holes in the 20240-1 locking tubes, drill 5/16" holes through the
locking tubes and tube nuts.
o Install new 5/16" bolts, AN365 nuts and AN960-516 washers through these holes
and torque them per Table 2-3.
o The wing jacks and braces can now be removed.
o Reinstall spray pump and spray pump mounting brackets. Reinstall the wing root
fairings and the other removed airplane side and belly panels.
o Reconnect the battery and external power receptacle.
o Make log book entry of the inspection that was completed and the results.
Effective: 1/1/08
THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
The airplane or wings may have moved since the
splice blocks were removed, resulting in binding of
the bolts. Adjusting the wing supports may ease
some binding and thereby assist with bolt installation.
Extreme care must be taken to avoid damaging the
spar cap or the surface finish inside the holes
through the spar cap.
* NOTE *
CAUTION
Install the MS20002 (non-
11 - 5