jakubz
Topic Author
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Joined: Fri May 21, 2010 9:48 pm

737 Eyebrow Windows (plus 707/727)

Mon Oct 07, 2019 3:29 am

I am trying to better understand the plugged windows on 737's.

For the Original and Classic 737's, (-100/-200/-300/-400/-500), did they all came from the factory with eyebrow windows? Also, did any of them get the windows plugged?

For the NG's, (-600/-700/-800/-900), I know that originally they were produced with eyebrow windows (which could be plugged). I also know that at some point Boeing made it an option for the aircraft to come with a factory installed skin. Eventually, the Eyebrow windows where removed as an option. Can anybody tell me what line number was the last 737 NG to be delivered with Eyebrow windows?

For the MAX's, are the eyebrow windows an option, or are they permanently deleted from the model?

Just out of curiosity, did the 707 and 727 also have any frames where the eyebrow windows got plugged?

As always, thank you for your responses.
KORD>RJAA>KORD day trip? Why not! The beauty of non-reving.
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Flown: PA-28, PA-38
Passenger on: A319/A320 737, 747-400, 757, 767, 777, 787-8/9
Finally got on a 747!

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TWA772LR
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Re: 737 Eyebrow Windows (plus 707/727)

Mon Oct 07, 2019 2:30 pm

I think some of the remaining 500s and 300s at CO/UA and WN may have had their eyebrows plucked, uh I mean plugged. Conversely AS still has some NGs that have eyebrows still.

I think some 727s that are still flying in a private config are eyebrowless.

I miss the eyebrows. I thought they looked cool.
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tb727
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Re: 737 Eyebrow Windows (plus 707/727)

Wed Oct 09, 2019 8:41 pm

I flew freight 727's from 2009-2014. Somewhere around 2012 we started plugging the eyebrow windows to save on maintenance costs. I think they looked cool, didn't really use them while flying other than looking at the stars.
Too lazy to work, too scared to steal!
 
KFTG
Posts: 182
Joined: Sun Apr 28, 2019 12:08 am

Re: 737 Eyebrow Windows (plus 707/727)

Mon Oct 14, 2019 9:15 am

jakubz wrote:
I am trying to better understand the plugged windows on 737's.

For the Original and Classic 737's, (-100/-200/-300/-400/-500), did they all came from the factory with eyebrow windows? Also, did any of them get the windows plugged?

For the NG's, (-600/-700/-800/-900), I know that originally they were produced with eyebrow windows (which could be plugged). I also know that at some point Boeing made it an option for the aircraft to come with a factory installed skin. Eventually, the Eyebrow windows where removed as an option. Can anybody tell me what line number was the last 737 NG to be delivered with Eyebrow windows?

For the MAX's, are the eyebrow windows an option, or are they permanently deleted from the model?

Just out of curiosity, did the 707 and 727 also have any frames where the eyebrow windows got plugged?

As always, thank you for your responses.

They are no longer an "option" on any new-build 737, and haven't been for some time, early ~2005 iirc.

Classic 737s (100/200/300/400/500) were all delivered with eyebrows, but many operators plugged them. See below.

Some 727 operators followed suit:


- As far as I know, there is no 707 in operation with plugged windows...
- Lan Chile CC-CCG for whatever reason had only one side plugged; I initially suspected it was just painted over but they are plugged in the photo below with paint stripped off
- Curious...



- In addition, the 717 was originally built w/ eyebrows but in it became standard to not have them ~mid 2002 iirc.
- As for the first NG to be delivered without them, looks like it was L/N 1650 (N201LV Southwest Airlines).
 
Max Q
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Re: 737 Eyebrow Windows (plus 707/727)

Wed Oct 16, 2019 1:58 am

Plugging these windows makes sense but I don’t understand why military versions of the 737, like the P8 have deleted them since their very purpose is reconnaissance
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jakubz
Topic Author
Posts: 143
Joined: Fri May 21, 2010 9:48 pm

Re: 737 Eyebrow Windows (plus 707/727)

Wed Oct 16, 2019 4:38 pm

KFTG wrote:
jakubz wrote:
...

They are no longer an "option" on any new-build 737, and haven't been for some time, early ~2005 iirc.

...

...

- In addition, the 717 was originally built w/ eyebrows but in it became standard to not have them ~mid 2002 iirc.
- As for the first NG to be delivered without them, looks like it was L/N 1650 (N201LV Southwest Airlines).



Awesome! Thank you for the detailed response.
Just a few of quick follow up questions.

For the 737NG, you said the first a/c delivered with out eyebrow windows was L/N 1650. Does that mean that all 737NG's with a line number 1650 or higher were built without the eyebrow windows?
Are there any documents (from Boeing, FAA, TCDS, etc..) which point out where this change happened?

For the 717, it seems to me that you are saying that some 717's came from the factory without eyebrow windows. Earlier 717's that came with the eyebrow windows could have them plugged. Is that correct?
Any chance there are documents for this?

Again, thanks a ton!
KORD>RJAA>KORD day trip? Why not! The beauty of non-reving.
Yes, I use ICAO codes
Flown: PA-28, PA-38
Passenger on: A319/A320 737, 747-400, 757, 767, 777, 787-8/9
Finally got on a 747!

I work for United Airlines, but I don't speak for the company.
 
LH707330
Posts: 2212
Joined: Fri Jun 15, 2012 11:27 pm

Re: 737 Eyebrow Windows (plus 707/727)

Wed Oct 16, 2019 5:44 pm

jakubz wrote:
KFTG wrote:
jakubz wrote:
...

They are no longer an "option" on any new-build 737, and haven't been for some time, early ~2005 iirc.

...

...

- In addition, the 717 was originally built w/ eyebrows but in it became standard to not have them ~mid 2002 iirc.
- As for the first NG to be delivered without them, looks like it was L/N 1650 (N201LV Southwest Airlines).



Awesome! Thank you for the detailed response.
Just a few of quick follow up questions.

For the 737NG, you said the first a/c delivered with out eyebrow windows was L/N 1650. Does that mean that all 737NG's with a line number 1650 or higher were built without the eyebrow windows?
Are there any documents (from Boeing, FAA, TCDS, etc..) which point out where this change happened?

For the 717, it seems to me that you are saying that some 717's came from the factory without eyebrow windows. Earlier 717's that came with the eyebrow windows could have them plugged. Is that correct?
Any chance there are documents for this?

Again, thanks a ton!

The 717 windows are not pluggable as a retrofit, because the eyebrow windows are part of the main flightdeck window frame, so it would require a larger change to get it to work. The others are mounted higher up, so they're fully independent structures.
 
Wacker1000
Posts: 182
Joined: Tue Jan 07, 2014 6:36 pm

Re: 737 Eyebrow Windows (plus 707/727)

Thu Oct 17, 2019 11:43 am

jakubz wrote:
For the 737NG, you said the first a/c delivered with out eyebrow windows was L/N 1650. Does that mean that all 737NG's with a line number 1650 or higher were built without the eyebrow windows?
Are there any documents (from Boeing, FAA, TCDS, etc..) which point out where this change happened?


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