Piper Warrior III - RUDDER SKIN BEAD REPAIR

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 3
Nov 30/06
4F19
55-40-00
3. Rudder Skin Bead Repair
CAUTION: CONTROL SURFACE SKINS MUST BE REPLACED IF THEY SUSTAIN DAMAGE OR
EXHIBIT CRACKS. LIMITED REPAIRS TO RUDDER SKINS ARE AUTHORIZED ONLY AS
PROVIDED IN THIS MANUAL.
NOTE: This repair is authorized only as a temporary measure until replacement parts (i.e. - skins) can
be obtained and installed.
A. Repair of minor cracks in Warrior III rudder skin surfaces is authorized, but limited as follows:
(1) Cracks of no more that 0.5 inch at the ends of the skin stiffening beads;
(2) No more than two cracks per surface side;
(3) Cracks are limited to either end of a bead (refer to Figure 2), but not on the same bead;
(4) For wrap around skins, two crack repairs are acceptable per side except crack repairs may not
be opposite to one another on opposite sides.
B. Proceed as follows:
(1) Only cracks confined to the bead end area shown in Figure 2 may be repaired;
(2) Cracks 0.5 inch long or less may be repaired by stop drilling;
(3) Stop drill the extreme ends of the crack with a #50 (0.070) drill.
NOTE: Cracks stop drilled once cannot be stop drilled again, should crack growth continue.
0.5 INCH MAX.
0.25 INCH
TYPICAL CRACK
CRACK LIMIT LINE
TYPICAL BEAD
CONTROL SURFACE SKIN
FORE AND AFT
Skin Bead Repair
Figure 2