EASA AD BR-2023-05-03R2
Equipment / Furnishings - Monuments Structural Reinforcements / Replacement of Fasteners
Summary
Brazilian Airworthiness Directive AD No. 2023-05-03R02 is issued by the Agência Nacional de Aviação Civil (ANAC) and applies to Embraer S.A. EMB-505 aircraft as specified in Embraer Service Bulletin SB505-25-0046, revision 03. This directive mandates structural reinforcement installation on monuments and replacement of floor support fasteners to address safety concerns. The AD ensures compliance with Brazilian aviation regulations for all aircraft registered in Brazil.
What Changed
This AD supersedes the previous AD No. 2023-05-03R01 and introduces an additional requirement for airplanes in Groups 1 and 2 to install Part Number 506-66837-001 if not already installed. It also updates compliance instructions to include the latest revision 03 of Embraer Service Bulletin SB505-25-0046 dated May 6, 2024. The directive clarifies inspection and replacement criteria for floor support fasteners and structural reinforcements.
Why It Matters
This directive addresses a critical safety issue where some monuments on EMB-505 aircraft may not withstand emergency landing loads, potentially causing detachment of heavy items and injury to occupants. For operators and maintenance organizations, compliance ensures the structural integrity of cabin furnishings and occupant safety. It also provides clear guidance on acceptable parts and procedures, facilitating regulatory compliance and reducing operational risks.
What To Do
Operators of Embraer EMB-505 aircraft must install structural reinforcements and replace floor support fasteners as specified in Embraer SB505-25-0046 revision 03 within 36 months after June 2, 2023. They must inspect and verify the part numbers of installed fasteners and install Part Number 506-66837-001 where required. Compliance actions should be recorded in maintenance logs, and any alternative methods of compliance must be approved by ANAC's Continuing Airworthiness Technical Branch.