New AD Would Supersede 2007 Directive For Popular Widebody
Engine
The FAA is set to supersede an existing airworthiness directive
(AD) that applies to all GE CF6-80C2B series turbofan engines. The
existing AD currently requires installing software version 8.2.Q1
to the engine electronic control unit (ECU), which increases the
engine's margin to flameout. Since that AD was issued, the FAA has
received reports of additional engine events.