Passenger Service Unit (PSU)
Passenger Service Unit (PSU) for lavatory
In aerospace, the way to make a profit is to reduce costs, weights and component complexities. Every piece of hardware, material choice, method of construction is thoroughly evaluated.
The current placement of the PSU in the ceiling is not service maintenance access friendly. There are up to eight different lavatory configurations available which creates additional parts and configurations.
My focus was on user interface and the point of view of the maintenance crew. The goal was to develop a common structure for the PSU components for various lavatory configurations.
After various iterations, I focused on the common base structure (injection molded housing) which supported the three required items as shown. The final design of the PSU housing is able to support all eight lavatory configurations.
Upfront tooling costs absorbed through the various configurations.
Ease of Serviceability
Pasenger point of view of the PSU
Service point of view of the PSU
PSU for the standard lavatory
PSU for forward lavatory
(Reduced ceiling geometry)