Cessna 172 Maintenance Manual page 18

damage. This is particularly true with wing tip, horizontal stabilizer tip, or vertical fin tip damage. If
the damage is due to an aft load, the rear spars should be checked for indications of compression
damage for the full length, including the fuselage components.
3. Damage Classification
A. Damage to the airplane can be divided into three major categories: negligible damage, repairable
damage, and major replacement damage. These categories are intended to provide the mechanic
with some general guidelines to use in determining the extent and criticalness of any damage.
Obviously, there will be some overlapping between categories, and common sense should be used
in determining the final action to be taken with regard to any damage.
(1) For damage criteria of specific structure (wings, fuselage, and so forth), refer to applicable
chapters within this repair manual.
4. Refinishing Damaged Areas Following Repairs
A. Areas of structure which are damaged and then repaired in the field, must be refinished to restore the
original paint and corrosion protectant properties to factory standards. Refer to applicable airplane
Maintenance Manual, Chapter 20, Exterior Finish - Cleaning/Painting, for refinishing procedures and
required materials.
CESSNA AIRCRAFT COMPANY
SINGLE ENGINE
STRUCTURAL REPAIR MANUAL
© Cessna Aircraft Company
51-10-00
Page 2
Jun 1/2005