FAA 2023-09-12

Requires inspecting the power return and chassis grounding cable attachment points at frame 37, including the attachment parts, and any necessary corrective action(s). Also requires modifying the installation of the vapor-cycle cooling system compressor/condenser power return cables and installing an additional isolated vapor-cycle cooling system chassis ground cable. Prompted by reports of insufficient grounding of the vapor-cycle cooling system compressor/condenser.