I was one of the individuals who voted to close this question. And here is why.
There is a category of professional that should not be unnecessarily distracted when they are performing their primary function of ensuring the safety of others. So, any IPS question that asks how to do this can be and should be off topic. That is because the answer is always “Do not do that”.
The “over the top” examples here are obvious, but they bring my point home.
- Don’t ask a police officer for directions when they are responding to a robbery in progress.
- Don’t ask a fireman to retrieve your cat from a tree when they are evacuating people from a burning building.
You might ask what this has to do with a flight attendant during a flight. Well, a quick Google search confirmed what I thought. From Wikipedia for Flight Attendant: “… members of an aircrew employed by airlines primarily to ensure the safety and comfort of passengers…”.
So, one of the primary jobs of a flight attendant is safety. During this particular flight, there was an emergency signal to draw the attention of the flight attendants. This is NOT the time to start asking them questions about what is going on. One should let them do their job (which is safety).
Let’s just say that the issue got resolved after ten minutes. After all, one could reasonably conclude that a great many conditions could result in a single alarm signal. For instance, let’s say that one of four engines cut off, but was then safely restarted. Is it best for the comfort of the passengers (second duty listed) to make them tense by informing everyone when it was a non-issue (the aircraft never stopped being flight worthy)? I would say no, especially since there are "nervous flyers" that may well panic (goes against safety).
One might ask why there was a long delay in informing the passengers that the flight was returning to its departure airport. Yes, one reason could be laziness. But a more likely scenario is that the flight crew was working diligently through a safety checklist that would then indicate whether to (1) resolve the problem and continue the flight, (2) safely and comfortably return to the departure airport for all to be rebooked, or (3) divert somewhere else. So, the best answer the flight attendant could give was what they said (which can be translated to “We’re working on it”).
This all leads back to not distracting the flight attendants when they are performing their primary task: safety.