Airworthiness DirectiveSupersededEASA AD 2019-0251

Pneumatic – Air Conditioning / Engine Bleed Air System – Software Update; Airplane Flight Manual / Master Minimum Equipment List – Air Conditioning / Engine Bleed Air System – Amendment

Superseded. Comply with 2022-0094, which replaces this document.

Published: Oct 9, 2019
Effective: Oct 16, 2019
Deadline: Oct 16, 2019
Replaces: 2018-0171-E
Replaces: 2019-0205

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of Airbus A380-841, A380-842, and A380-861 aeroplanes must perform repetitive inspections and functional tests within specified flight hour intervals, install the updated PADS and EBAS software within three months of the directive's effective date, and update the Airplane Flight Manual accordingly before the next flight after modification. Additionally, operators must apply the required MMEL changes and remove specified MEL items until the MMEL is updated. All actions must comply with the instructions and timelines detailed in the directive.

Summary

EASA Airworthiness Directive 2019-0251 is an airworthiness directive issued for Airbus A380-841, A380-842, and A380-861 aeroplanes. It addresses issues related to the pneumatic air conditioning and engine bleed air systems, specifically requiring software updates and operational changes to prevent overpressure and structural damage during take-off. The directive also mandates changes to the Airplane Flight Manual and Master Minimum Equipment List for affected aircraft.

What changed

This directive supersedes previous ADs and requires installation of updated Pneumatic Air Distribution System (PADS) software standard 6.5 and Engine Bleed Air System (EBAS) software standard 6.5.1. It introduces new repetitive inspections and functional tests, mandates removal of certain MMEL items, and prohibits take-off with both packs off configuration. The directive also cancels earlier ADs and replaces previous temporary revisions of the Airplane Flight Manual with a new mandatory revision.

Why it matters

This directive is critical for maintaining the structural integrity of Airbus A380 wings by preventing uncontrolled overpressure in the pneumatic system that could cause hot air leakage and damage. Compliance ensures safe operation during take-off and climb phases, reducing the risk of engine bleed duct rupture and associated structural damage. Operators, maintenance organizations, and compliance teams must implement these changes to meet regulatory requirements and maintain aircraft airworthiness.

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