EBU Single Rulebook Q&A 20 February 2015 2015_1846 Subordinated loans as Additional Tier 1 capital

Is it possible for a (normal) subordinated loan to qualify as Additional Tier 1 capital according to Article 51 of Regulation (EU) No 575/2013 if all conditions according to Article 52 are met? Usually a company or bank issues a bond or another kind of a hybrid security with debt- and equity-like features to be qualified as Additional Tier 1 (AT1) capital.