What is the lowest ambient temperature acceptable during ground operation?

The lowest ambient temperature acceptable during ground operation is -23 degrees Celsius. This limit is in place primarily to ensure proper engine operation, fuel performance, and aircraft functionality. Operating the aircraft at temperatures below this threshold could lead to issues such as difficulties with fuel flow, potential battery performance degradation, and overall decreased efficiency of aircraft systems.

Temperature affects not only the performance of the aircraft’s systems but also the safety of personnel conducting pre-flight checks and taxiing. Therefore, adherence to this temperature limit is crucial for maintaining operational integrity and ensuring a safe ground operation.