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Thread: What is this? (cord pulled from jetbridge onto plane) [Answer: Temperature sensor]
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Old Jun 10, 2021 | 8:29 am
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El_Duderito
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Join Date: Jun 2008
Location: BER
Programs: BAEC GGL/GfL, Lufthansa SEN, Hilton Diamond, misc other stuff
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Originally Posted by born sleepy
I know what the little wheel thing that touches the fuselage is about (electrical ground).
The rubber wheel on the painted aluminum/composite material fuselage won't be a good electrical ground I suppose.
The wheel is used for the air bridge auto-leveling feature. When 100s of pax and containers get loaded (or unloaded) the landing gear springs/dampeners will get compressed and lower (or raise) the floor level of the plane. The wheel and auto-leveling will chase those height changes and make sure that pax won't have to step up/down onto the plane.

I always wanted to see what happens when somebody turns the wheel manually

Here's a Youtube video:
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