Helicopter
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 18
Situational Awareness; Communication Breakdown; Training / Qualification; Distraction
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert
Procedure; Human Factors
Aircraft X departed NZY for practice instrument approach at NZY.  Training in progress.  Trainee handed off Aircraft X to NZY Radar; but failed to effectively communicate transfer until aircraft reached a 2300 ft MVA.  Don't trust Trainee.
SCT TRACON Instructor reported the Developmental did not transfer communication to the Tower until the aircraft reached an area beneath the MVA.