Just a quick observation... I know of two ACK ELT failures in recently-built RV-12's. Both failed on the ground after landing. Both sent back to mgr and mainboards replaced with no mention of possible G-Switch failure. One unit was under warranty and the 2nd repair was out-of-pocket...
'failed' as in 'activated'?
I had an ACK go off minutes after what I considered was a smooth landing, was embarrassing when it started sounding off in front of the gas pumps & people standing around looking at the pretty RV12...
'failed' as in 'activated'?
I had an ACK go off minutes after what I considered was a smooth landing, was embarrassing when it started sounding off in front of the gas pumps & people standing around looking at the pretty RV12...
Exactly. My guess is units returned with new motherboard and no mention of G-switch failure so as not to generate an Airworthiness Directive that would be costly for the manufacturer.