Aircraft Flight Manual — Fuel Quantity Indication System Procedure — Amendment ; Fuel — Fuel Quantity and Management System Software — Update
- Published
- Effective
- Deadline
- Replaces
- 2018-0215
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A380 aircraft must amend the Aircraft Flight Manual within 30 days after 19 October 2018 to include the temporary revision if not already done. They must install the updated Fuel Quantity and Management System software within 18 months after 19 July 2019, following Airbus service bulletin instructions. Installation of previous software versions is prohibited after modification, and certain concurrent modifications must be performed if not already embodied in production.
Summary
EASA Airworthiness Directive 2019-0159 addresses the fuel quantity indication system procedure and software update for Airbus A380-841, A380-842, and A380-861 aeroplanes. It mandates amendments to the Aircraft Flight Manual and updates to the Fuel Quantity and Management System software to correct fuel quantity indication discrepancies. This directive applies to all Airbus A380 aircraft except those with specific production modifications 77964 and 77965.
What changed
This directive supersedes EASA AD 2018-0215 and requires installation of updated Fuel Quantity and Management System software standard S4.3, replacing earlier versions that caused fuel quantity miscalculations. It also removes the need for the temporary operational procedure introduced by the previous AD and prohibits installation of outdated software standards. Additionally, it mandates concurrent modifications for aircraft without certain prior production modifications.
Why it matters
Accurate fuel quantity indication is critical to flight safety, preventing fuel starvation and potential loss of aircraft control. This directive ensures operators update software and procedures to eliminate discrepancies in fuel weight readings caused by sensor faults. Compliance helps maintain continuing airworthiness and regulatory conformity, reducing operational risks and avoiding flight delays or grounding.
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