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Intro to Aviation Spark Plugs

Bruce Springsteen got it right: You can't start a fire without a spark.

Tempest Aero Group is one of the companies that manufactures aviation spark plugs. [Credit: Tempest Aero Group]
Gemini Sparkle

Key Takeaways:

  • Aviation spark plugs are essential for aircraft engine operation, with the FAA emphasizing their maintenance (cleaning, gapping, installation) as a critical skill for both A&P mechanics and owner-operators.
  • Established companies like Champion Aerospace have a long history of developing specialized aviation spark plugs, while newer manufacturers such as Tempest Aero Group (which acquired Unison Industries' aviation spark plug line) are prominent producers of modern aviation plugs.
  • Proper spark plug maintenance, including correct installation, cleaning, and gapping, is crucial for optimal engine performance and to prevent potential damage.
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Modern aircraft are technological wonders. This is a fact we can all agree on. Once you move past that point, however, the opinions start flying. One key point is that no one is going anywhere until you start the airplane. For that, we look to the late 20th century poet and philosopher Bruce Springsteen, who famously said, “You can’t start a fire without a spark.” Today, we talk about aviation spark plugs.

Why Spark Plugs Are Important

This is one area where pilots and airframe and powerplant (A&P) mechanics can find common ground. There is a lot of truth in what “The Boss” sings about. Nothing happens without the spark. The FAA ensures prospective A&P mechanics are well-versed in spark-o-matics.

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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