DOC AIRBUS | AMM A320FTRIMMABLE HORIZONTAL STABILIZER LEADING EDGE - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
THS Leading EdgeA. Leading Edge Assembly.
- The leading edge assembly (left hand and right hand) has:
- three primary ribs,
- one outboard leading-edge section,
- one inboard leading-edge section,
- one leading-edge intersection.
B. Primary Ribs.
- The primary ribs (R1, R12 and R25) are attached to the spar box with Hi-Lok fasteners. these ribs are made of laminations of Carbon Fiber Reinforced Plastic (CFRP). Each rib has anchor nuts to permit installation of the leading- edge sections.
C. Leading-edge Sections.
- The inboard and outboard leading-edge sections are installed to the primary ribs and to the spar box with countersunk screws. Ribs make the leading-edge sections stronger (R2 thru R11 and R13 thru R26). Hi-Lok fasteners attach the ribs to the skin of the leading-edge.
D. Ribs and Skin.
- The ribs and the skin are made of laminations of CFRP. the front part of the inboard and outboard leading edge sections has a stainless steel protection. It is bonded to the leading edge.
E. Leading edge Intersection.
- The leading edge intersection is installed to R1 and to the spar box. Countersunk screws attach the intersection to the R1 and to the spar box. The leading edge intersection is made of laminations of CFRP on a honeycomb core. A rubber strip is installed to the intersection. It seals the gap between the fuselage skin and the leading edge intersection.