Originally Posted by 24th ID
I don't know what they will do if someone decides to violate this rule. Before the FAA had set measures for the A/C to divert. As for fines, etc., it is still a felony to interfere with the proformance of a flight crew. I suppose the crew could request the assistance of FAMs or if no FAMs, request local LEOs when on the ground. I suppose Delta could refuse to fly the offending passenger in the future.
I would hard pressed to do anything if the subject is clearly not acting in an threatening manner and just decided to use the lav.
Technically, it is a violation of federal regulations for passengers not to be seated with their seatbelts fastened when the sign is illuminated. Below are excerpts from 14CFR121.317. It is my understanding that if a FAA cabin safety inspector is aboard a flight, and they witness passengers using the lavatory while the seatbelt sign is illuminated, the passenger can be fined by the FAA. Additionally, if the FA has not warned the passenger to return to his/her seat, the FA can also be fined for violating a FAR.
(f) Each passenger required by Sec. 121.311(b) to occupy a seat or berth shall fasten his or her safety belt about him or her and keep it fastened while the ``Fasten Seat Belt'' sign is lighted.
(k) Each passenger shall comply with instructions given him or her by a crewmember regarding compliance with paragraphs (f), (g), (h), and (l) of this section.