PROCEDURES IN THE EVENT OF AIR-GROUND COMMUNICATION FAILURE IN THE EUR REGION
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proceed according to the current flight plan route to the appropriate designated navigation aid serving the destination aerodrome and, when required to ensure compliance with 3.1 f), hold over this aid until commencement of descent;....
g) complete a normal instrument approach procedure as specified for the designated navigation aid; and
h) land, if possible, within thirty minutes after the estimated time of arrival specified in 3.1 f) or the last acknowledged expected approach time, whichever is later.
thatīs the last thing i found about it