4-10. WING FLAP.
4-11. REMOVAL OF WING FLAP.
a. Extend the flaps to their fullest degree and remove the bolt and bushing from the rod end bearing by use of
an angle or offset screwdriver.
b. Remove the nuts, washers, hinge and hinge bolts that hold the flap to the wing assembly.
c. Pull the flap straight back off the wing.
4-12. INSTALLATION OF WING FLAP. (Refer to Figure 4-1.)
a. Replace the wing flap by placing the flap onto its proper position and inserting the hinge bolts, bushings,
washers, and nuts.
b. With the flap control in the full down position, place the bushing on the outboard side of the rod end
bearing and insert and tighten the bolt.
c. Operate the flap several times to be certain it is operating freely.
4-13. WING.
4-14. REMOVAL OF WING. (Refer to Figure 4-2.)
—NOTE —
To help facilitate reinstallation of control cables, and fuel and brake lines, mark
cable and line ends in some identifying manner and attach a line where applicable
to cables before drawing them through the fuselage or wing.
b. Drain the brake lines and reservoir. (Refer to Draining Brake System, Section II.)
c. Remove the access plate at the wing butt rib and wing inspection panels. (Refer to Access Plates and
d. Remove the seats from the airplane.
e. Expose the spar box and remove the cockpit side trim panel assembly that corresponds with the wing being
removed.
—CAUTION —
To prevent damage or contamination of fuel, hydraulic and miscellaneous lines,
place protective covers over the line fittings and ends.
f. Place the airplane on jacks. (Refer to Jacking, Section II.)
g. Disconnect the aileron balance and control cables at the turnbuckles that are located within the fuselage aft
of the spar.
h. If the left wing is being removed, remove the cotter pin from the pulley bracket assembly to allow the left
aileron balance cable end to pass between the pulley and bracket.
i. Disconnect the flap from the torque tube by extending the flap to its fullest down position and removing the
bolt and bushing from the bearing at the aft end of the control rod.
j. Disconnect the fuel line at the fitting located aft of the spar at the wing butt line.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
STRUCTURES
1E10
Issued: FEBRUARY. 28, 1989
