Africa Charter Airline CC v AviSys Aviation Systems CC

Africa Charter Airline CC, an aircraft charter operator, contracted with AviSys Aviation Systems CC to overhaul major components of the main landing gear of its Boeing 737 aircraft for a quoted price of R550 000. Africa Charter paid R460 000 to a subcontractor at AviSys’s request. It was common cause that AviSys did not remove and re‑apply the cadmium plating on the high‑strength steel landing gear components during the overhaul. Africa Charter alleged that, under the Maintenance Support Agreement and applicable Boeing Component Maintenance Manual (CMM), AviSys was contractually obliged to remove the cadmium plating, and that failure to do so constituted a material breach entitling cancellation and repayment. Africa Charter sued for repayment (claim A) and consequential damages for loss of profit (claim B). AviSys denied any obligation to remove the cadmium plating and counterclaimed for the outstanding balance of R90 000. The High Court found for AviSys, prompting an appeal to the Supreme Court of Appeal.

Appeal upheld with costs. The High Court order was set aside and replaced with an order granting judgment for Africa Charter for payment of R460 000 plus interest and costs; dismissing claim B; and dismissing AviSys’s counterclaim with costs.

The judgment is significant for its authoritative application of modern principles of contractual interpretation in a technical and regulated aviation context. It confirms that manufacturer maintenance manuals incorporated by contract must be interpreted purposively and contextually, with due regard to safety considerations. The case also illustrates the interaction between contractual obligations and statutory aviation regulations, and cautions against piecemeal separation of issues under Uniform Rule 33(4).