EASA AD 2023-0057
Airborne Auxiliary Power — Auxiliary Power Unit Fuel Control Unit — Replacement
EASA Airworthiness Directive 2023-0057 is an airworthiness directive addressing Airbus A330 and A340 aeroplanes equipped with Honeywell GTCP331-350 auxiliary power units (APUs). The directive targets specific APU fuel control units with part numbers 3883240-3, 3883240-5, or 3883240-6 that have known cracks in the housing assembly, which could cause fuel leakage. The AD mandates replacement of affected fuel control units to ensure continued safe operation.