EASA AD CF-2023-28
May 5, 2023Fire Protection — Fire Extinguisher Bottle Available Push Button Annunciators (PBAs) — Do Not Illuminate After Direct Current (DC) Bus Loss
Canadian Airworthiness Directive CF-2023-28 addresses a fire protection issue in Airbus Canada Limited Partnership BD-500-1A10 and BD-500-1A11 aircraft. The directive focuses on the fire extinguisher bottle available push button annunciators (PBAs) that fail to illuminate after a direct current (DC) bus loss, potentially misleading flight crews during engine fire events. This AD mandates a software upgrade to restore proper PBA functionality.
- Airbus BD-500 (A220 Series)
- Airbus Canada BD-500-1A10
- Airbus Canada BD-500-1A11