parker183•26d agoProlific Poster

DAE have a faulty wire bundle chafe on a King Air 350 last Tuesday?

I spent 4 hours tracing a intermittent autopilot disconnect in a 2008 model and found the shielding was rubbed raw behind a bulkhead clamp that looked fine from the front, has anyone else seen that specific issue on those clamps?

3 comments

3 Comments

terryw6726d ago

Pulled two of those same clamps off last month on a different King Air and found the same chafe pattern. The rubber grommet inside was completely dried out and cracked, so the wire bundle was rubbing metal on metal inside the clamp. What worked for me was replacing those clamps with the newer style that has a harder nylon insert. Also ran a tie-wrap on each side of the clamp to keep the bundle centered. Haven't seen the autopilot drop out since, but I'll bet the same fix would help with that intermittent disconnect you're chasing. Worth checking the other clamps in that panel too, they're probably all the same age and just as brittle.

jennifer20426d ago

Agree with @terryw67 - it's basically the same as old garden hoses getting brittle, just with worse consequences (like, a lot worse).

christopher94326d ago

Exactly. Three of those same clamps were toast in our 200. Dry rot is dry rot, no matter where it shows up.