SAO.IDE.100 Instruments and equipment — general

(a)  Instruments and equipment required by this Subpart shall be approved in accordance with Annex I to Regulation (EU) No 748/2012 or, when registered in a third country, with the airworthiness requirements of the state of registry, if one of the following conditions is fulfilled:

(1)  they are used by the flight crew to control the flight path;

(2)  they are used to comply with points SAO.IDE.130 Radio communication equipment or SAO.IDE.135 Transponder;

(3)  they are permanently installed in the sailplane.

(b)  By way of derogation from point (a), all of the following instruments or equipment, when required by this Subpart, shall not need an approval:

(1)  independent portable lights;

(2)  an accurate timepiece;

(3)  survival and signalling equipment.

(c)  Instruments and equipment shall be readily operable or accessible from the station where either the pilot-in-command or any other crew member, who needs to use them, is seated.