IRImplementing rule
CS-E 910 Relighting In Flight
The Engine constructor must recommend an envelope of conditions for Engine relighting in flight, and must substantiate it by appropriate tests or other evidence. The recommendation must state all the conditions applicable, e.g. altitude, air speed, Engine windmilling rotational speed, whether starter assistance is required, the recommended drill.
IR — CS-E · ED Decision 2003/9/RM · CS-E Easy Access Rules · EAR revision 7 Dec 2023