Airworthiness Directives; Short Brothers Model SD3-60, SD3-60 SHERPA, and SD3-SHERPA Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to all Short Brothers Model SD3-60, SD3-60 SHERPA, and SD3- SHERPA series airplanes, that requires a one-time inspection of the wiring harness and power cables of the heated windshield to detect inadequate clearance, inadequate support, or chafing. This amendment also requires corrective action (including re-routing for adequate clearance or replacing damaged cables, as applicable), if necessary. The actions specified by this AD are intended to prevent chafing or damage of the power cables of the heated windshield, which could cause arcing and result in smoke and fire in the cockpit. This action is intended to address the identified unsafe condition.