EASA AD CF-2022-19
Auxiliary Power Unit — Tailcone Upper Firewall Cracking
The Canadian Airworthiness Directive CF-2022-19 addresses cracking in the upper firewall of the tailcone related to the Auxiliary Power Unit (APU) on Bombardier BD-100-1A10 aircraft with serial numbers 20003 to 20916. This directive mandates inspections and corrective actions to ensure structural integrity and electrical grounding safety. It specifically targets the replacement of the rigid grounding braid with a flexible exhaust connection cable to prevent firewall cracks.