737 Engine indicators
Joined: Jan 2005
Posts: 376
Likes: 0
From: Grand Com f'Ort
On the one hand, I can't help feeling that this question needs to be shifted to another forum, harumph. 
On the other, we can probably suggest that the spotter/flightsimmer asking the question visits the powerplant page on a very good 737 website.
On the other, we can probably suggest that the spotter/flightsimmer asking the question visits the powerplant page on a very good 737 website.
Joined: Jan 2000
Posts: 94
Likes: 0
From: Cambridgeshire, England
If you are talking about non EFIS (analogue), then you may be referring to the red warning lights which are situated inside the indicators on the N1, N2 and EGT indicators. These lights illuminate when an engine paramater has been exceeded and remaim on until the parameter is reduced below the limit.
On the EFIS displays the ‘dots’ are situated above the indicator and do the same job.
If you are talking about something else, then I am stumped.
On the EFIS displays the ‘dots’ are situated above the indicator and do the same job.
If you are talking about something else, then I am stumped.
Joined: Dec 2004
Posts: 6
Likes: 0
From: South of the Watford Gap
737 Engine Indicators
Hi Screwdriver,
If the 'dots' are at about the 2 o clock position on the primary engine instruments, it could well be the light sensors that control the brightness of the LED numerical display on that indicator.
Hope this helps.
If the 'dots' are at about the 2 o clock position on the primary engine instruments, it could well be the light sensors that control the brightness of the LED numerical display on that indicator.
Hope this helps.
Joined: Dec 2007
Posts: 210
Likes: 20
From: Denver, Colorado, USA
White dots
If the dot is on the glass of the indicator(s), along with the color markings or bands, it could be a slipage mark. That way if the glass rotated, moving the markings, you could tell. Just a guess
