Cessna 172 Maintenance Manual page 148

1. General
A. The auxiliary spar is constructed of formed sheet metal, and is behind the trailing edge ribs from
approximately WS 100.50 to 208.00. The auxiliary spar is attached to upper skins, lower skins and
other wing structure using rivets.
2. Auxiliary Spar Damage
A. Damage to the auxiliary spar can be divided into three major categories and is detailed in Wing
Damage Classification.
3. Auxiliary Spar Repair
A. Repairs to the auxiliary spar are illustrated in Figure 801.
CESSNA AIRCRAFT COMPANY
SINGLE ENGINE
STRUCTURAL REPAIR MANUAL
AUXILIARY SPAR REPAIRS
© Cessna Aircraft Company
57-24-00
Page 801
Jun 1/2005