Power Plant — Engine Support Frame — Inspections / Modification; Propeller — Propeller Assembly — Balancing; Engine — Fuel and Control — Powerplant Controllers Software — Modification
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect the engine mount and check belt tension before the next engine use or within 30 days of 7 May 2025, whichever is first. Any discrepancies require immediate repair or part replacement before further engine use. Within 15 engine hours or 11 months after 7 May 2025, stakeholders must install the CFRP bracket and perform propeller dynamic balancing. Maintenance based on the old manual task is no longer permitted from the effective date.
Summary
EASA Airworthiness Directive 2025-0091 is an airworthiness directive addressing DG-1000M powered sailplanes manufactured by DG-Flugzeugbau GmbH. It mandates inspections, repairs, and modifications related to the engine support frame, propeller assembly balancing, and powerplant controller software. The directive aims to ensure continued airworthiness by preventing engine mount structural failures and maintaining proper power transmission to the propeller.
What changed
This new directive introduces mandatory inspections of the engine mount steel frame (P/N 10M112) for cracks, belt tension checks, repairs or replacements if defects are found, installation of a carbon fiber-reinforced plastic bracket (P/N 10M227), and dynamic balancing of the propeller assembly. It also prohibits maintenance actions based on an older maintenance manual task related to drive belt mounting and tensioning.
Why it matters
This directive is critical for operators and maintenance organizations to prevent potential engine mount failures that could lead to loss of power transmission and unsafe flight conditions. Compliance ensures structural integrity of the engine support frame and proper propeller operation, thereby enhancing flight safety and regulatory adherence. It also updates maintenance procedures to reflect current safety standards.
More for Dg Aviation Gmbh DG-1000
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- EASA AD 2024-0126Flight Controls — Automatic Elevator Connection — Inspection / ReplacementJul 2, 2024
- EASA AD 2019-0237R1Cabin Systems — Canopy Lock / Rear Locking Rods — Inspection / Check / Repair Aircraft Flight Manual — AmendmentSep 24, 2019
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