EASA AD GA8-12
Powerplant Instrumentation and Limitations - Maintenance and Operational Manual - Amendment
Summary
The Powerplant Instrumentation and Limitations - Maintenance and Operational Manual - Amendment is an Airworthiness Directive issued by the Civil Aviation Safety Authority of Australia affecting all GippsAero GA8 series aeroplanes listed in the relevant service bulletin. It addresses discrepancies in engine performance data related to take-off charts and engine RPM limits. This directive mandates updates to maintenance and operational manuals to ensure compliance with corrected engine limitations.
What Changed
This amendment requires operators of GA8 aircraft modified per GippsAero Service Bulletin SB-GA8-2011-66 Issue 60 or earlier to implement the corrective actions detailed in GippsAero Service Bulletin SB-GA8-2024-218 Issue 1. The change corrects previously identified discrepancies in engine RPM limits used in take-off performance charts, aligning them with the engine limitations specified in the flight manual.
Why It Matters
This directive is critical for aviation professionals to maintain safe operation within engine performance limits, preventing potential engine over-speed conditions during take-off. Compliance ensures that flight manuals and operational data accurately reflect safe engine parameters, supporting regulatory compliance and reducing risk of engine damage or failure. Maintenance and compliance teams must update documentation and procedures accordingly to avoid regulatory penalties and operational hazards.
What To Do
Operators of affected GA8 aircraft must comply with the requirements of GippsAero Service Bulletin SB-GA8-2024-218 Issue 1 within 100 flight hours or six months from 31 January 2025, whichever occurs first. This involves updating maintenance and operational manuals to reflect corrected engine RPM limitations. Compliance must be verified and documented to meet the Airworthiness Directive obligations.