THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 5
Jun 1/03
4D9
51-00-00
(11) Mask area around hole with tape and paper to protect surface. Cut a piece of fiberglas mat
about one inch larger than hole and one or more pieces of fiberglas cloth two inches larger
than hole. Brush catalyst resin over hole, lay mat over hole and wet out with catalyzed resin.
Use a daubing action with brush. Then apply additional layer or layers of fiberglas cloth to build
up patch to surface of structure. Wet out each layer thoroughly with resin.
(12) With a squeegee or broad knife, work out all air bubbles in patch. Work from center to edge,
pressing patch firmly against structure. Allow patch to cure for 15 to 20 minutes.
(13) As soon as patch begins to set up, but while still rubbery, take a sharp knife and cut away extra
cloth and mat. Cut an outside edge of feathering. Strip cut edges of structure. Do this before
cure is complete, to save extra sanding. Allow patch to cure overnight.
(14) Using dry 80-grit sandpaper on a power sander or sanding block, smooth patch and blend with
surrounding surface. Should air pockets appear while sanding, puncture and fill with catalyzed
resin. A hypodermic needle may be used to fill cavities. Let cure and resand.
(15) Mix catalyzed resin and work into patch with fingers. Smooth carefully and work into any
crevices.
(16) Cover with cellophane and squeegee smooth. Allow to cure completely before removing
cellophane. Let cure and resand.
(17) Brush or spray a coat of catalyzed resin to seal patch. Sand patch, finish by priming, again
sanding and applying color coat.
NOTE: Brush and hands may be cleaned in solvents such as acetone or methylethylketone. If
solvents are not available, a strong solution of detergent and water may be used.
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