EASA AD 2021-0051
[Correction] Flight Controls — Rudder Electrical Backup Hydraulic Actuator and Elevator Servo Control Solenoid Valves — Replacement ; Master Minimum Equipment List / Airplane Flight Manual — Amendment
Summary
The Correction to EASA Airworthiness Directive 2021-0051 addresses the replacement of rudder electrical backup hydraulic actuator and elevator servo control solenoid valves on Airbus A380 aeroplanes. It applies to all Airbus A380-841, A380-842, and A380-861 models and includes amendments to the Master Minimum Equipment List and Airplane Flight Manual. The directive ensures continued airworthiness by mandating inspection, replacement, and operational procedure updates for affected solenoid valves.
What Changed
This correction republished EASA AD 2021-0051 to fix an error in paragraph (2) regarding AFM amendments. The AD supersedes the previous AD 2019-0310R1 and adds requirements for replacing affected solenoid valves on elevator servo controls, activating ECAM Temporary Change 62, and updating the AFM with temporary revisions. It also clarifies compliance timelines and operational restrictions for different groups of affected aircraft.
Why It Matters
This AD is critical for preventing potential rudder or elevator runaway caused by defective solenoid valves missing internal components, which could lead to loss of aircraft control. Operators, maintenance organizations, and compliance teams must implement the required inspections, replacements, and procedural changes to maintain safe flight operations and regulatory compliance. Failure to comply could result in operational restrictions or unsafe flight conditions.
What To Do
Operators must amend the MMEL within 30 days of 3 January 2020 to incorporate dispatch restrictions based on aircraft groupings. For Group 1 and 3 aircraft, AFM amendments and activation of ECAM Temporary Change 62 must be completed within 30 days of 9 March 2021. Replacement of affected rudder solenoid valves must be done within 12 months after 3 January 2020, and elevator solenoid valves within 18 months after 9 March 2021. Installation of affected parts is prohibited from 3 January 2020 onward.
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