21.A.804 Identification of parts and appliances

SI No. 588/2023

(a) Each part or appliance which is eligible for installation in a type-certified product shall be marked permanently and legibly with:

1. a name, trademark, or symbol identifying the manufacturer in a manner identified by the applicable design data; and

2. the part number, as defined in the applicable design data; and

3. the letters UKPA for parts or appliances produced in accordance with approved design data not belonging to the type-certificate holder of the related product, except for UKTSO articles and for parts and appliances covered under point (b) of point 21.A.307.

(b) By way of derogation from point (a), if the CAA agrees that a part or appliance is too small or that it is otherwise impractical to mark a part or appliance with any of the information required by point (a), the authorised release document accompanying the part or appliance or its container shall include the information that could not be marked on the part or appliance.