REFERENCE ONLY — not authorized for maintenance, repair or return-to-service. Every number behind these tiles is a study reference compiled from public standards and from work on the aircraft; it is not approved data and it is not controlled. The document that governs a task is the current revision of the maintenance data, parts catalogue, repair manual, troubleshooting data, consumables list or dispatch list your organisation holds. Not affiliated with, endorsed by or connected to the manufacturer or any manufacturer.