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Why The Human Factors of Aviation Maintenance Matter

Our A&P tells you about ‘The Dirty Dozen’ and why each of them is so important.

Frequently, aircraft maintenance professionals are placed in uncomfortable situations when maintaining aircraft. [Courtesy: Richard Scarbrough]
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Key Takeaways:

  • The article highlights the historical neglect of human factors in aviation maintenance, exemplified by the author's grueling past schedule which illustrates how extreme fatigue and long hours contribute to unsafe working conditions.
  • It introduces "human factors" as a multidisciplinary study for safe human performance and details Gordon Dupont's "Dirty Dozen," which are 12 common preconditions for human error in aviation maintenance, including lack of communication, complacency, fatigue, and stress.
  • Effectively integrating human factors into Maintenance, Repair, and Overhaul (MRO) operations requires making the training relevant, practical, and scenario-based to directly demonstrate its tangible value and overcome resistance to change among technicians.
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The alarm sounds at 0605 local, and I barely register that I am alive, let alone awake. Struggling to my feet, I dress and move slowly toward the kitchen, where my mother greets me with a red-and-white 16-quart Igloo Playmate cooler, packed with all three meals I would need for the next 18 hours and snacks. I shoulder my faded black Jansport backpack, hoist my Sears Craftsman toolbox into the truck, and fight to stay awake on my early morning drive to airframe and powerplant (A&P) school.

A&P school concludes at 1500. Next, my shift starts at the ATL T Gates. As a mechanic’s helper, my duties ranged from interior cabin work to hauling Lockheed L-1011 tires and nitrogen bottles. We sometimes entered aircraft logbooks into the computer.

Richard Scarbrough

Richard is a US Navy Veteran, A&P Mechanic, and Embry-Riddle Aeronautical University alumni. His experience ranges from general and corporate aviation to helicopters, business jets, and commercial airliners. Former owner of a 145 repair station, he currently has an aerospace product management role and is a member of the T-C-Alliance. Follow him on X (Twitter) at @RScarCo.

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