Externally-mounted aircraft engine component

A component for an aircraft engine, the component mountable externally to a core of the aircraft engine, the component comprising:

• an enclosure having a wall circumscribing a sealed inner chamber, the wall having an inner surface and an outer surface, the wall having a first wall portion welded to a second wall portion along a weld line extending about a perimeter of the enclosure;
• a mounting bracket disposed on the outer surface for mounting the component to the core;
• a protrusion protruding outwardly from the outer surface and inwardly from the inner surface and extending along the outer surface and the inner surface concentrically with the weld line about the perimeter of the enclosure;
• and
• an additional protrusion protruding from one or more of the outer surface and the inner surface, the additional protrusion extending along the one or more of the outer surface and the inner surface between a first additional protrusion end at the protrusion and a second additional protrusion end at the mounting bracket;
• wherein the additional protrusion has a curved cross-sectional profile at a junction with the one or more of the outer surface and the inner surface.