Recently, the maintenance team of China Postal Airlines successfully completed the first in-house modification of the QACVR (quick access cockpit voice recorder) system on its B777 aircraft, realizing independent and controllable modification of the key avionics system.  

The QACVR system is a vital airborne device underpinning flight incident investigation, operational traceability and safety control. This in-house modification greatly reduced aircraft downtime, shortened turnaround maintenance time, and enabled full-spectrum control over safety, quality, schedule and costs.

The modified QACVR system will effectively bolster flight risk assessment, fault review and safety management, thereby further strengthening the technical support system of China Postal Airlines for the safe operation of its intercontinental flights, and providing solid backing for future route expansion and regular safe operations.