What Is Complacency in Human Factors?
What is complacency? - It’s the self-satisfaction accompanied by a loss of awareness of the dangers.
Two very experienced AMTs (one with 22 years and the other with 33 years of experience) missed 140 cracks during a 100-hourly inspection. This resulted in one fatality and 95 people experiencing a very close call when 18 ft of fuselage went missing during a flight.
The whole world screamed, how could this possibly happen? How could these 2 men miss that many cracks?