Piper Warrior III - Page 740

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06 4E14
53-20-00
(2) Inspect thoroughly the left and right aft wing attach fittings for evidence of flaking paint and/or
corrosion. (Flaking paint may be a symptom of hidden corrosion.) If no corrosion exists,
continue with these instructions.
(a) If corrosion is superficial and there is no metal flaking and/or pitting, clean and paint
fittings, using a good quality aircraft primer.
(b) If serious corrosion is found, consult the Piper Illustrated Parts Catalog (P/N 761-897) for
replacement part numbers and obtain and install new parts before next flight. See Aft
Wing Attach Fittings Replacement, below.
(3) Upon completion of the inspection and after replacement or refurbishment of fittings, treat the
aft attach fittings area using DINOL AV 8 corrosion compound (P/N 89500-800). The treatment
may be brushed or sprayed.
(4) Inspect insulation in and around the rear fittings.
(a) If insulation is wet or matted down where it has been wet, it will be necessary to replace
this insulation and it will be necessary to inspect all windows, doors, and exterior panels
leading to the cabin.
1 Check door seals for deterioration, cracks, and voids in adhesive.
2 Check window seals for voids, cracks, and deterioration.
3
Perform a leak check with water to determine where the water is entering. Cure all
leak paths before continuing these instructions.
4
Consult the Piper Illustrated Parts Catalog (P/N 761-897) for replacement part
numbers and obtain and install new parts before continued operation.
5 If sealing windows, use P/N 279-058 Sealant (Bostik 1100 FS) or equivalent.
6
If using insulation other than Piper original material, be sure that the insulation is
flame resistant and conforms to FAR part 23.853.
(b) If the insulation material has not been wet, or if new material is being installed, ensure a
six (6) inch clearance in the insulation has been cut out in all directions around each
attach fitting.
(5) Locate the two 0.191 inch drain holes, one beneath each rear attach fitting, in the bottom
fuselage skin and ensure each is clean and free of obstruction.
(6) Re-install floorboards, seats, interior panels, and other articles previously removed. Perform a
functional test of any system or component that may have been interrupted or removed.