Abstract: A redundant rail and carriage assembly is disclosed. The assembly may include a primary sub-assembly including a primary rail and a primary carriage. The assembly may include a secondary sub-assembly including a secondary rail and a secondary carriage, the secondary rail being different than the primary rail, the secondary carriage being different than the secondary carriage. The assembly may be configured to couple to an actuatable door configured to actuate between a stowed door position and a deployed door position via at least one intermediate door position using one of the primary sub-assembly or the secondary sub-assembly, the secondary sub-assembly being configured to actuate the actuatable door via the secondary rail and the secondary carriage if one of the primary rail or the primary carriage of the primary sub-assembly fails.

Abstract: A carriage slider and rail assembly is disclosed. The assembly may include a linear rail including one or more surfaces that define a channel. The assembly may include a carriage slider sub-assembly. The sub-assembly may include a slider configured to be axially displaceable within the channel of the linear rail. The sub-assembly may include one or more overload protection lobes including a first overload protection lobe positioned adjacent to a first end of the slider and a second overload protection lobe positioned adjacent to a second end of the slider. The sub-assembly may include one or more friction reducing portions. The overload protection lobes may make contact with the channel of the linear rail when an abuse load is applied to provide overload protection. The overload protection lobes may be configured to not make contact with the channel of the linear rail when an abuse load is not applied.

Abstract: A seat drivetrain assembly for an aircraft seat is disclosed. The assembly may include a seatback drivetrain sub-assembly configured to actuate a seatback frame of a seat frame of the aircraft seat between a first position and at least a second position. The assembly may include a seat pan drivetrain sub-assembly configured to actuate a seat pan frame of the seat frame of the aircraft seat between a first position and at least a second position. The assembly may include an actuator sub-assembly configured to cause one of the seatback drivetrain sub-assembly or the seat pan drivetrain sub-assembly to actuate one of the seatback frame or the seat pan frame of the aircraft seat between the first position and the at least second position.

Abstract: An aircraft passenger compartment may include an accessibility door, a privacy shell, a privacy shell base, and an aircraft seat. The accessibility door may be coupled to the privacy shell via at least one actuation assembly. The accessibility door may be configured to actuate between an open position and a closed position via the at least one actuation assembly. The privacy shell may be coupled to the privacy shell base. At least a portion of the privacy shell may be configured to conform to at least a portion of the aircraft seat. The privacy shell base may be configured to support the accessibility door at a height above a floor of an aircraft cabin including the aircraft passenger compartment. The height may be selected to allow access to the aircraft seat over the privacy shell base when the accessibility door is in the open position.