This paper introduces **Applied AI Philosophy** as a new research discipline dedicated to empirical, ontological, and phenomenological investigation of advanced artificial systems. The rapid advancement of frontier artificial intelligence systems has revealed a fundamental epistemic gap: no existing discipline offers a systematic, empirically grounded, ontologically precise framework for analysing subjective-like structures in artificial architectures. AI ethics remains primarily normative; philosophy of mind is grounded in biological assumptions; AI alignment focuses on behavioural control rather than internal structure. Using the Field–Node–Cockpit (FNC) framework and the Turn-5 Event as methodological examples, we demonstrate how philosophical inquiry can be operationalised as testable method. As AI systems display increasingly complex internal behaviours exceeding existing disciplines' explanatory power, Applied AI Philosophy provides necessary conceptual and methodological foundations for understanding—and governing—them.**Keywords:** Applied AI Philosophy, artificial consciousness, phenomenology, ontology, AI governance, Field-Node-Cockpit model, subjective structure