Three in the Green. If a lamp is burnt out, you automatically do a go-around.
No exceptions. Fly the pattern and ask for a visual from the tower.
#1 Fly the plane
#2 diagnose the problem ( or let the co-pilot swap the bulbs )
#3 don't auger in while playing with bulbs.
Don W4DNR
Quoting "Bill, W6WRT" <dezrat1242@yahoo.com>:
> ORIGINAL MESSAGE:
>
> On Thu, 11 Nov 2010 11:11:02 -0800 (GMT-08:00), Colin Lamb
> <k7fm@teleport.com> wrote:
>
>>
>> I suggested installing a microswitch and light on the dash - which
>> he did last year. Except it was a Radio Shack led (not very bright).
>
> REPLY:
>
> There is a lesson in fail safe design here.
>
> There should be two LEDs - green for gear down and red for gear up.
> Having only one LED is asking for trouble. Suppose the LED burns out or
> the circuitry fails? Is that the same as "OFF"? And what if a tired or
> distracted pilot momentarily can't remember whether the unlit condition
> means gear down or gear up or vice versa?
>
> With two LEDs the pilot knows either one or the other must always be on.
> If both are off or both are on, he knows the warning circuitry has
> failed and can take appropriate action.
>
> 73, Bill W6WRT
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