Airworthiness DirectiveSupersededEASA AD 2021-0193

Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment

Superseded. Comply with 2024-0134, which replaces this document.

Published: Aug 20, 2021
Effective: Sep 3, 2021
Deadline: Sep 3, 2022
Replaces: 2013-0130
Replaces: 2015-0143-E

Airbus Helicopters AS 355

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What to do

Operators must replace components before exceeding specified life limits and perform all maintenance tasks within defined intervals according to the applicable ALS starting from the effective date. They must revise the approved Aircraft Maintenance Programme within 12 months to incorporate the updated limitations and tasks. Any discrepancies found during inspections require corrective actions before the next flight or within specified compliance times.

Summary

EASA Airworthiness Directive 2021-0193 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 355 models including AS 355 E, F, F1, F2, N, and NP. It mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the Airbus Helicopters AS 355 Aircraft Maintenance Manual Chapter 04 Airworthiness Limitations Section revisions. The directive ensures continued airworthiness by enforcing life limits and maintenance intervals for critical components of these helicopters.

What changed

EASA AD 2021-0193 supersedes previous directives including EASA AD 2013-0130 and Emergency AD 2015-0143-E, incorporating new and more restrictive maintenance tasks and life limits introduced in the latest ALS revisions. It consolidates requirements from earlier ADs such as 2010-0006 and 2015-0094 into a single directive for AS 355 helicopters. This update introduces revised thresholds and intervals for maintenance tasks to enhance safety and compliance.

Why it matters

This directive is critical for operators, maintenance organizations, and compliance teams as it mandates adherence to updated maintenance programs to prevent unsafe conditions. Failure to comply could lead to component failures and compromise helicopter safety. It streamlines compliance by integrating multiple previous AD requirements into one directive, simplifying maintenance planning and regulatory adherence.

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