B737-900
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Commercial
Flight Crew Last 90 Days 112; Flight Crew Type 56
Human-Machine Interface
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Flight Crew Overcame Equipment Problem
Aircraft
Downwind vectoring off BRAUN Arrival for 13R. 2500 foot GPWS callout made on downwind; no approach clearance issued yet.
B737-900 Captain reported GPWS callout made while on downwind vector.