EASA AD 2021-0174
Rotorcraft Flight Manual — Supplements / One-Engine Inoperative Performance Limitations — Amendment
Summary
EASA Airworthiness Directive 2021-0174 is an amendment concerning the Rotorcraft Flight Manual supplements related to One-Engine Inoperative performance limitations for Airbus Helicopters AS 332 L2 and EC 225 LP models. The directive addresses discrepancies in the flight manuals regarding stay-up flying capabilities for Category B operations. It mandates updates to the Rotorcraft Flight Manual to ensure compliance with applicable airworthiness standards.
What Changed
This amendment requires inserting specific appendices into the Rotorcraft Flight Manual limitations section for the affected helicopter models, clarifying weight and performance limitations based on passenger configuration. It corrects previously missing airworthiness limitations related to one-engine inoperative performance, ensuring the manuals reflect the necessary stay-up flying capabilities as per FAR/JAR 29.1 standards.
Why It Matters
The update is critical for operators and maintenance teams to accurately determine the helicopters' one-engine inoperative performance limitations, preventing potential miscalculations that could compromise flight safety. Compliance ensures that flight crews operate within certified performance parameters, maintaining control and safety during engine-out scenarios. It also aligns the manuals with regulatory airworthiness requirements, supporting continued airworthiness and regulatory compliance.
What To Do
Operators must amend the Rotorcraft Flight Manual limitations section by inserting the applicable appendix within 30 days of the directive's effective date, informing all flight crew of the changes. Alternatively, incorporating a later approved revision of the Rotorcraft Flight Manual that includes equivalent information is acceptable. Flight operations must then adhere to the updated limitations accordingly.
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