How should the NR (National Requirements) note in the documentation provided by the manufacturer, e.g. in the MPD, be treated?

Normally, this note is included by the manufacturer in the repository document, Maintenance Planning Document, a basic tool for the operator to draw up the maintenance programme.

It usually refers to regulations or legal requirements, usually non-aeronautical, i.e. industrial or occupational safety requirements at European or national level.

Examples could be: inspection intervals of pressurised gas cylinders, buoyancy of lifejackets, expiry of certain capabilities related to heat protection, impact, ingestion of harmful gases, etc.

If any NR is provided for in the manufacturer's documentation, it should be considered whether such a national requirement exists and, if so, it should be included.