Max Q
Topic Author
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Joined: Wed May 09, 2001 12:40 pm

737 overheard panel

Sun May 13, 2018 4:30 am

Why are different sections of the forward
overhead panel on the 737 colored in different shades ?


Some of them are very light and others are grey
The best contribution to safety is a competent Pilot.
 
slcguy
Posts: 226
Joined: Wed Jul 09, 2008 12:09 pm

Re: 737 overheard panel

Sun May 13, 2018 5:20 am

I believe the light colored areas are controls that need to be properly configured for the aircraft to fly, such as electrical busses, hydraulics, pneumatics and fuel pumps. Most of the controls on the grey panels while important won't prevent the aircraft from flying. There are a few controls on the grey panels that have to be in their normal position for the aircraft to be operated, these have red or black safety covers over the switches. If the cover is closed the switch is in it's correct position, pilots generally never need to touch these controls.
 
slcguy
Posts: 226
Joined: Wed Jul 09, 2008 12:09 pm

Re: 737 overheard panel

Sun May 13, 2018 6:08 am

Too late to edit previous post. The controls under the red and black safety covers are things like emergency back up systems etc.
 
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longhauler
Posts: 5764
Joined: Sat Mar 06, 2004 12:00 am

Re: 737 overheard panel

Sun May 13, 2018 12:29 pm

I am very curious about this too.

Almost 30 years ago when I flew the 737-200 (same overhead panels), I asked a check captain that very question. His answer was that during an engine out situation, it is those panels that need to be addressed and adjusted first. Respectfully, I said nothing, as even 30 years ago, the QRH addressed any electrical, pneumatic, hydraulic and fuel switch adjustments. But I was sceptical.

Still ... I have always wondered.
Just because I stopped arguing, doesn't mean I think you are right. It just means I gave up!
 
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7BOEING7
Posts: 2708
Joined: Fri Oct 12, 2012 5:28 pm

Re: 737 overheard panel

Sun May 13, 2018 5:27 pm

More comments here:

viewtopic.php?t=744777

and here:

viewtopic.php?t=731685

Also the Australian airlines IIRC did not have two colors, just one on at least their 737 Classics and New Gens.
 
strfyr51
Posts: 2957
Joined: Tue Apr 10, 2012 5:04 pm

Re: 737 overheard panel

Mon May 14, 2018 1:08 am

Max Q wrote:
Why are different sections of the forward
overhead panel on the 737 colored in different shades ?


Some of them are very light and others are grey


That's a B737-300 series, Those mismatched paint panels are more than likely (Highly unlikely) NOT to be the original panels the airplane was delivered with.
Not all repair / overhaul vendors are going to paint their panels in the original Boeing Grey.
Especially since it makes little or NO difference to the operation OF the panel.
I'm sure the pilots don't care as long as they work as advertised.. Y'think?? Aside from the fact the airplane might be 20+ years old.
 
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7BOEING7
Posts: 2708
Joined: Fri Oct 12, 2012 5:28 pm

Re: 737 overheard panel

Mon May 14, 2018 2:07 am

strfyr51 wrote:
Max Q wrote:
Why are different sections of the forward
overhead panel on the 737 colored in different shades ?


Some of them are very light and others are grey


That's a B737-300 series, Those mismatched paint panels are more than likely (Highly unlikely) NOT to be the original panels the airplane was delivered with.
Not all repair / overhaul vendors are going to paint their panels in the original Boeing Grey.
Especially since it makes little or NO difference to the operation OF the panel.
I'm sure the pilots don't care as long as they work as advertised.. Y'think?? Aside from the fact the airplane might be 20+ years old.


All 737 Classics (100/200) and New Gens (300/400/500) delivered with both colors except the Australians.
 
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longhauler
Posts: 5764
Joined: Sat Mar 06, 2004 12:00 am

Re: 737 overheard panel

Mon May 14, 2018 3:57 am

7BOEING7 wrote:
All 737 Classics (100/200) and New Gens (300/400/500) delivered with both colors except the Australians.

NG and MAX as well!
Just because I stopped arguing, doesn't mean I think you are right. It just means I gave up!
 
strfyr51
Posts: 2957
Joined: Tue Apr 10, 2012 5:04 pm

Re: 737 overheard panel

Tue May 15, 2018 10:19 pm

longhauler wrote:
7BOEING7 wrote:
All 737 Classics (100/200) and New Gens (300/400/500) delivered with both colors except the Australians.

NG and MAX as well!

At United all of our B737-322's and -522's were delivered with the same colored Panels originally. Unce they started getting replaced?
The Grey's might have come back different on some of the face plates. But we had a shop that painted them as well. Not many other airlines
have that option so for them to come back different? is of little or no consequence. I'm not even sure if We still do it.
I have had pilots in the past who would write it up if they were not the same color. Worse than That?
We would fix it!!
 
7673mech
Posts: 430
Joined: Tue Mar 30, 2004 10:10 am

Re: 737 overheard panel

Wed May 16, 2018 12:56 am

The lighter panels are those systems affected by pulling an engine fire handle. Left to right fuel, electrical, hydraulics, pneumatics.
 
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nonfirm
Posts: 428
Joined: Mon Sep 12, 2005 3:04 pm

Re: 737 overheard panel

Wed May 16, 2018 1:23 am

The Primary Flight Panels as stated by 7673mech are also the 4 systems affected by the fire handles.
Checked and Released
 
arcticcruiser
Posts: 189
Joined: Tue Aug 22, 2017 2:16 pm

Re: 737 overheard panel

Wed May 16, 2018 10:46 pm

Ancient setup in the stalactite cave that is the 737 cockpit...

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