Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown
General None Reported / Taken
Company Policy; Procedure; Human Factors
I have worked many 737 flights where the aircraft is getting 'shut down' for an overnight in the arrival station. When the flight deck shuts down the aircraft while we are still deplaning passengers and leaves for their layover; it leaves the cabin crew in an unsafe position due to the inability for us to use the cabin inter phone or PA in the event of any type of emergency in the aft section of the aircraft. In essence; we have no way to communicate with the front of the aircraft other than use of the megaphone. In addition; the cabin temperature rises rapidly once the air flow is discontinued making it a health/safety issue for the 100 or more passengers still waiting to deplane.
B737 Flight Attendant reported that the aircraft was shut down; on multiple occasions; prior to deplaning all the passengers.