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Airwork: Time to Pull the Plug?

After 33 years, the engine in my 1976
Cessna Cardinal, with almost 450
hours passed TBO and 20 years since
it was overhauled, may have reached
retirement age.
Tom Benenson
Gemini Sparkle

Key Takeaways:

  • The author's high-time aircraft engine (2,440 hours SMOH) develops an intermittent rough running issue during magneto checks that mechanics struggle to definitively diagnose despite various checks.
  • Given the engine's age and the undiagnosed intermittent problem, mechanics advise an overhaul or replacement for safety and liability reasons, which the author initially resisted hoping for a simpler repair.
  • Faced with a potential engine replacement cost of $30,000-$40,000, high annual operating expenses, and a depressed aviation market, the author is forced to critically re-evaluate the financial and personal value of continued aircraft ownership.
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Tom, I’ve got bad news for you,” Brian says when I answer the phone.

The phone call isn’t a surprise. I’ve expected the call every time my airplane was in the hands of a mechanic during the last year or so, but it isn’t welcome.

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