With the introduction of the HSMU monitoring system and associated faults, the fuel tank temperature sim can be used to cool the hot hyd oil. But depending on OAT, outside air can be used as well.

The HSMU monitors:

‐ The pressure of the engine pumps

‐ The pressure and temperature of the electric pumps

‐ The pressure and level of the reservoir

‐ The position of the fire shut-off valves

‐ The temperature of the system.

THus, in the event that the fuel is low and oil is hot:

The FOHE is similar in both a350 and a380 so no comment there. I'll try and investigate the plane once I got the sim. Hope it helps!

Edited 8 hours ago8 hr by schizzel
Abnormal message

Hi,

Thanks for your detailed feedback! I will pass this along to the team for further investigation.

Thanks again!