Optimal aircraft configuration management and the ability to quickly change an aircraft’s seating configuration is a significant economic benefit to operators. Business class and premium economy can be reconfigured to suit seasonal changes in the number of passengers carried. Rapid reconfiguration of monuments and galleys extend the aircraft’s viability into new flight sector requirements. Electronically locking food and beverage carts and pet kennels improves security, reduces work load on crew and improves aircraft security and safety. All reconfiguration changes are automatically controlled and audited by the TZ Smart Lock system during the change process.