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Old 20th Jun 2015, 03:00
  #5 (permalink)  
Big Pistons Forever
Join Date: Jan 2004
Location: West Coast Canada
Posts: 3,541
Originally Posted by JUST-local View Post
If you have had tbo + 20% out of an engine you have had your moneys worth, who said flying would be cheap
The flying school I do a bit of part time teaching at has approval to run the engines in the C 172 S to 3500 hrs (Lycoming TBO is 2000 hrs). To date every engine has made it to 3500 hrs with no issues.

TBO + 20 % hard limit for a commercially maintained engine used regularly, reflects a regulator that hasn't a clue
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