Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Communication Breakdown; Distraction; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
Flight Crew Overcame Equipment Problem
Human Factors; Procedure; Environment - Non Weather Related; Aircraft
At 11;000 feet Flight Attendant called; notified of passenger face mask non-compliance; causing a distraction with announcement location and announcement briefing. Once on course with Runway XX; approximately 2-3 miles before ZZZZZ; during flap extension to flaps 45; autopilot disconnected. We believe the autopilot disconnected because during flap extension speed dropped off. As the First Officer was adding power and correcting; autopilot disconnected. First Officer then hand flew and we tried autopilot again. It engaged normally.
Air carrier Captain reported being distracted by a Flight Attendant call and the autopilot disconnected during flap extension.