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Boeing 777 nose gear leg landing and taxi lights

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Boeing 777 nose gear leg landing and taxi lights

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Old 12th Feb 2018, 17:56
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Boeing 777 nose gear leg landing and taxi lights

The Boeing 777 has two landing light bulbs and two taxi light bulbs on the nose gear leg. I assume these only work when the gear is down but I maybe wrong to assume that. Can anyone confirm please?
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Old 12th Feb 2018, 21:25
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They all come on when the nose gear is down and locked. This is unlike the 747-400 which uses air/ground for runway turnoff and (optional) taxi lights. These lights are not used as foot heaters
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Old 12th Feb 2018, 23:07
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NSEU is correct - ELMS looks for Nose gear down and locked signal in the logic before it will power on the relay for the lights.
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Old 13th Feb 2018, 09:20
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The correct selection of the switch on the overhead panel will still be required to bring the lights on and BTW " bulbs" are planted in the ground, filament is the correct term!

Last edited by yotty; 13th Feb 2018 at 09:31.
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Old 13th Feb 2018, 15:09
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yotty,

If filament is the correct term for aircraft lamps, what do we call these new fangled LED things?
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Old 13th Feb 2018, 15:46
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We call them "practically daylight"!
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Old 13th Feb 2018, 19:25
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Originally Posted by NSEU View Post
They all come on when the nose gear is down and locked. This is unlike the 747-400 which uses air/ground for runway turnoff and (optional) taxi lights.
True. I remember seeing a 744 land many years ago and wonder why they would be turning on the taxi light on the nosegear just at the moment of touchdown instead of concentrating on landing. Twenty-some years later, I discovered why...air-ground sensor.

Last edited by JammedStab; 19th Feb 2018 at 19:07.
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