What is the maximum ambient temperature allowed for operating engine anti-ice during ground operations?
Understand the Problem
The question is asking for the maximum ambient temperature at which engine anti-ice systems are permitted to operate during ground operations. It's a specific knowledge-based question related to aviation operations.
Answer
10°C or below with moisture; permissible up to 15°C.
Engine anti-ice is typically used when the Outside Air Temperature (OAT) is 10 degrees Celsius or below, along with visible moisture. During ground operations, it's permitted to use it up to around 15 degrees Celsius based on specific guidelines.
Answer for screen readers
Engine anti-ice is typically used when the Outside Air Temperature (OAT) is 10 degrees Celsius or below, along with visible moisture. During ground operations, it's permitted to use it up to around 15 degrees Celsius based on specific guidelines.
More Information
Using engine anti-ice during ground operations is necessary to prevent icing when the temperature is sufficiently low and conditions conducive to moisture and ice formation are present.
Sources
- Engine Core and Fan De/Anti-icing | SKYbrary Aviation Safety - skybrary.aero
- Engine Anti-Ice, "ON" at what temp? - PPRuNe Forums - pprune.org
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