EASA AD CF-2023-11
Fuel System — Standpipe Assembly Sharp Edges Leading to Fuel Quantity Wiring Harness Chafing Condition
Canadian Airworthiness Directive CF-2023-11 addresses a fuel system issue on Bell Helicopter Textron Canada Limited model 407 helicopters, specifically serial numbers 54832 through 54931, 54933 through 54939, and 54942 through 54954. The directive concerns sharp edges on the standpipe assembly part number 407-062-032-103 that may cause chafing of the fuel quantity wiring harness. This condition could lead to fuel quantity indication errors or potential fuel tank ignition.
Airworthiness DirectiveMaintenanceSafety MgmtBell 407Bell Helicopter Textron Canada Limited 407