Air shipment has become a growing solution for international shipments. However, due to lack of visibility, sometimes cargo can be lost or get damaged before reaching the destination. Problems in air cargo logistics system range from damaged cargo, miss-routing, missing cargo, or missing documents.This study identifies and analyzes the possible factors that can contribute to the missing air cargo problem. The exporting process at the new Suvarnaphumi Airport in Thailand is used as a case study. This study examines the operation process starting from the Cargo Terminal, going through customs formality and inspection process, to being put on standby before being exported. The flow of cargo and operation process is analyzed. A Root Cause Analysis (RCA) is applied to identify hidden factors which can affect the performance of operation process.The result of this analysis shows the vulnerable links in the air cargo management system. The findings from this study can serve as an initial step for the industry to improve the process at the air cargo terminal in order to reduce to risk of missing shipment.