Federal Register #FAA20262727

FAA Airworthiness Directive for DG Aviation GmbH DG-1000M Gliders: Engine Mount Inspection and Repair

The Federal Aviation Administration (FAA) has issued an airworthiness directive (AD) for all DG Aviation GmbH Model DG-1000M gliders, referencing the OEM DG Aviation GmbH (formerly DG Flugzeugbau GmbH). - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs and Vendors: - DG Aviation GmbH (OEM for DG-1000M gliders) - Products/Services Requested: - Inspection and, if necessary, repair or replacement of the steel frame engine mount (part number 10M112) - Installation of a carbon fiber reinforced plastic (CFRP) bracket (part number 10M227) between the upper drive belt guide rollers - Propeller assembly dynamic balancing - Powerplant belt tension inspection and adjustment - Maintenance manual update to reflect new requirements - Unique or Notable Requirements: - Prohibits use of outdated maintenance procedures - Mandates compliance with DG Aviation GmbH Technical Note No. TN 1000/51, Doc. No. TM100051 FE2901, Issue 01.d - Applies to all U.S.-registered DG-1000M gliders - Requires actions before next engine operation, with additional tasks within 15 flight hours or 11 months - Place of Performance/Delivery: - FAA offices in Westbury, NY and Washington, DC are listed as points of contact and record, but actions are performed on affected gliders wherever located in the U.S.

Description

The FAA is issuing a new airworthiness directive (AD) for all DG Aviation GmbH Model DG-1000M gliders due to reports of engine mount cracking near the propeller head. The AD mandates updating the maintenance manual, inspecting the engine mount for cracks, and performing corrective actions if cracks are found. Additional requirements include powerplant belt tension inspection and adjustment, balancing the propeller assembly, installing a carbon fiber reinforced plastic bracket, and prohibiting certain maintenance actions. This directive aims to address the unsafe condition and prevent loss of power transmission and control of the glider.

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