Light Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 13
Training / Qualification; Communication Breakdown
ATC Issue All Types; Airspace Violation All Types; Deviation - Altitude Crossing Restriction Not Met; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Departure Airport; Flight Crew Executed Go Around / Missed Approach
Procedure; Human Factors; Weather
Aircraft X was advised of airport conditions as well as the work in progress on the runway and was cleared for the VOR 26 approach and told to change to advisory frequency and report cancellation on the frequency.  About 15-20 minutes later the pilot called and informed me he was in the hold over ADQ VOR at 2;000 ft but had not completed the approach or the missed approach.  I double checked the approach plate and immediately issued a climb to 3;700 ft.  Once the aircraft reported reaching 3;700 ft I issued a holding clearance as depicted on the approach plate for the missed approach holding pattern with an EFC and probed for more information which he provided.  The aircraft eventually ended up diverting back to ZZZ due to the poor runway conditions. The pilot needed to inform us of his intentions prior to entering the hold he was not authorized.
ZAN Controller reported aircraft was below the MVA during missed approach hold. Controller reported incorrectly aircraft cleared VOR approach executing MA was not authorized holding.