26.150 Compartment interiors

‘Major Replacement’: More than 50% of any component types affected in the cabin are replaced. For example, 51% of the sidewall panels, or 51% of the ceiling panels.

Galley carts and containers are considered as ‘open galley surfaces’ and therefore are subject to the same requirements as galleys in this respect, namely CS 26.150(c). However, because of the rotatable nature of these components, and their limited lifespan, it is permissible to use galley carts and containers manufactured prior to 20/08/1990.

‘Complete Replacement’: All of the affected components in the cabin are replaced. Whether the other components that are not affected are replaced is not relevant. 1 The qualifying word ‘substantially’ may be used to avoid operators avoiding compliance by not replacing a minor, inconsequential cabin component and stating that there had not been a ‘complete replacement’. 2 The definition does, therefore, permit individual replacement of cabin interior components without the mandatory replacement of all components at the same time. It should also be noted that removing components for refinishing and reinstalling them in the same aeroplane, or in a different aeroplane not subject to more stringent requirements, is considered ‘refurbishment’ and not ‘replacement’.