National Research Council of Canada. NRC Institute for Aerospace Research
1999 World Aviation Conference, Oct. 19-21, 1999, San Francisco, CA
lap joint; National Research Council of Canada; operational aircraft; repair techniques; aviation; repair; fuselages
The National Research Council of Canada has collected a large number of corroded and non-corroded fuselage lap joints from retired and operational aircraft. A number of these corroded joints have been disassembled in order to quantify the level of corrosion. During the disassembly, it was often observed that common repair techniques resulted in damage to the structure. The damage observed was significant enough to raise concerns regarding the effect of the repair techniques on structural integrity. This paper describes the different types of damage found.