Integrated Modular Avionics – Aircraft Management Computer Software – Modification
Superseded. Comply with 2019-0208, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2017-0146
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of MBB-BK117 D-2 helicopters with affected Aircraft Management Computers must amend the Rotorcraft Flight Manual within 30 days after 24 August 2017 and update the software within 2 months after 6 November 2018. Installation of software versions lower than V5.0.3 on any helicopter is prohibited from the effective date. After software update, temporary flight manual revisions may be removed.
Summary
EASA Airworthiness Directive 2018-0230 is an airworthiness directive issued for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. It addresses issues related to the Aircraft Management Computer software versions V5.0.2 and earlier, focusing on the integrated modular avionics and autopilot cruise height mode. The directive mandates software updates and flight manual amendments to ensure safe helicopter operation.
What changed
This directive supersedes EASA AD 2017-0146 and requires updating the Aircraft Management Computer software to version V5.0.3 or higher. It retains previous requirements for amending the Rotorcraft Flight Manual to include autopilot operating limitations and introduces prohibitions on installing affected software versions on any helicopter. The directive also allows removal of temporary flight manual revisions after software update.
Why it matters
The directive addresses a critical safety issue where uncommanded helicopter climb or descent could occur due to autopilot mode conflicts, potentially leading to loss of control. Compliance ensures continued airworthiness and operational safety of affected helicopters, preventing accidents and injuries. Operators and maintenance organizations must adhere to these requirements to maintain regulatory compliance and safe flight operations.
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