Summary
We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 208 and 208B airplanes. This proposed AD would require inspection of the left and right wing wire bundle(s) and repair or replacement of damaged wire. This proposed AD would also require inspecting the wire bundles for correct attachment to the anchor points and correcting any deficient attachments. This proposed AD results from chafed wiring found on wire bundles in the left and right wings containing the auto-control wing de-ice system, fuel quantity indication, and low fuel annunciation on the Cessna 208B airplanes. Improper installation of wire bundle supporting hardware can cause chafed wiring in the affected bundles. We are proposing this AD to detect and correct damaged wiring of the auto- control wing de-ice system, fuel quantity indication, and low fuel annunciation systems. This condition could result in incorrect fuel quantity indications, loss of low fuel quantity annunciations, or loss of the autocontrol wing de-ice system.