Where can you find the model of magneto approved for a given engine?

• A. In the Type Certificate Data Sheet for the engine.
• B. In the engine's factory warranty.
• C. In the aircraft's equipment list.
• D. In the aviation glossary.

Answer: (A)

The magneto model that is approved for a specific engine is listed in the engine’s Type Certificate Data Sheet (TCDS). The TCDS is the official certification document that defines the engine’s approved configuration, including which magneto models and installation requirements are permitted. This ensures any magneto used with the engine has been evaluated and approved as part of the engine’s certified design. If a magneto model isn’t listed or doesn’t meet the TCDS installation limits, it isn’t considered approved for that engine.

The factory warranty, while important for service terms, does not establish which magnetos are approved. The aircraft’s equipment list shows what is currently installed on a particular airplane, but it does not define the official approved configurations for that engine model. The aviation glossary is only a reference for terminology and not a source of approval information.