March 2014 Issue
Simple Plug Checker: Go/No-Go on Resistance
Although its a bit pricey at $130, this gadget makes quick work of checking spark plugs for high resistance values.
The list of approved maintenance items an aircraft owner can do under FAR Part 43 is long and includes replacing, cleaning and gapping plugs. In the spirit of cleaning, we think checking plug resistance is also on the list.
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