Date: 201810
Aircraft: Commercial Fixed Wing
Operator: Air Carrier
Operating under: Part 121
Reporter organization: Air Carrier
Reporter function: Flight Attendant (On Duty)
Reporter qualification: Flight Attendant Current
Human factors: Communication Breakdown; Situational Awareness; Confusion
Anomaly: Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Person Flight Attendant
When detected: Other Post Flight
Contributing factors: Company Policy; Human Factors; Procedure
Primary problem: Procedure

Narrative: This report is in reference to [flight to] ZZZ. Approximately 30 minute inflight; I was informed that we had to put everything away because we were landing in 10 minutes. No reason was given [by] the cockpit. The crew was not informed as to whether we needed to prepare the cabin for an emergency or to know what to expect on landing. Passenger were inquiring about what was going on but I had no information to relay. No announcements were made to the passengers. After landing; it took approximately 20 minutes before the first announcement was made about the situation.We parked in a remote area (cargo area). The Captain made an announcement that the airport was shut down and that there were no personnel to bring a stairway to the airplane nor a bus to transport passenger to the terminal. The earliest that the airport would be open and personnel availability would not be until XA:00 am (approximately 2 hours from the current time). We tried to make the passengers as comfortable a possible by doing our meal service and drink service while we waited for help. While on the ground; an announcement was made to disarm doors. I did as instructed but was not aware at the time that we did not have airstairs pulled up to the airplane yet (I was position FA01 4L). The Captain was asked if we should disarm the door or keep them armed do to the fact that we do not have airstairs for deplaning in an emergency. The crew was concerned that this was not standard protocol if an emergency situation should arise. The Captain informed us to keep the doors disarmed.Eventually the airstairs were connected to the airplane. After some time had passed (approximately 2 hours after landing); passengers were asking what was the status and why there has not been any update in the situation. I then went to the front of the airplane to inquire. That is when I found out that the cockpit had left the airplane.  The flight attendants were left with a plane full of passengers without any means of communicating with anyone outside of the airplane. There was no way to get anyone's attention or assistance in the event of an emergency. We were held on the airplane of an additional hour (3 hours in total) without much information. The only communication we had was through one employee who was called into the airport to help. He would come periodically with whatever information he had to give us.




Synopsis: Flight Attendant reported arriving early to an airport; parking at a remote spot; and then finding out cockpit crew left the aircraft with everyone else onboard. Attendants had no way to communicate with ground personnel.