An aircraft passenger service unit signage placard adapted to be retrofitted to a passenger service unit, the placard comprising at least a first signage area and a second signage area, wherein the first signage area is arranged to be illuminated by a switchable illumination means in the passenger service unit and wherein the placard comprises a first and a second layer and photoluminescent material is provided on at least one of the first and second layers of the placard in the second signage area, the second signage area having at least one first icon illuminated by the photoluminescent material such that the first icon is always illuminated in use.
Aircraft overhead signs
2022-10-19
Patent
Electronic Resource
English
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