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-   -   Identify component in 737 cockpit window please (https://www.pprune.org/tech-log/632275-identify-component-737-cockpit-window-please.html)

Jimbo2Papa 7th May 2020 16:16

Identify component in 737 cockpit window please
 
I've noticed these tucked away in the frames of cockpit windows of 737s - red arrow pointing to it.
Pure curiosity as to their function.
Looks like a small white bulb on a wire.

Thank you in advance.

J2P

https://cimg4.ibsrv.net/gimg/pprune....250f12fa44.jpg

TURIN 7th May 2020 16:25

Total guess.

DV Window 'closed' prox sensor?

golfbananajam 7th May 2020 16:30


Originally Posted by Jimbo2Papa (Post 10775538)
I've noticed these tucked away in the frames of cockpit windows of 737s - red arrow pointing to it.
Pure curiosity as to their function.
Looks like a small white bulb on a wire.

Thank you in advance.

J2P

Pure guess, but is it a connector for a heated window?

Jimbo2Papa 7th May 2020 16:35

No, the heated window connectors are further back.

Thus;

https://cimg9.ibsrv.net/gimg/pprune....c1b583f507.jpg

Don't think they're " Window Closed" sensors as I believe they can move.

RVF750 7th May 2020 16:57

That's the glass itself. There is a black power feed cable with connector that runs to the DV from the rear of it. That wiring runs along the base of the window. It may be a protective grommet for that you are seeing. Should be one towards the rear too.

Jimbo2Papa 7th May 2020 17:07

So Turin was correct? It's a power cable for the DV Window Closed sensor?

BSD 7th May 2020 17:27

It’s possibly a customer option that I’ve never seen but the 737 doesn’t have a “window open” warning. Until apparently you get to about 90 knots, when, if it’s unlocked.............
The white plug like device? Sorry, no idea.

buzz21 7th May 2020 17:28

window heat elect. connector
r. no warning light for pilot s side window open.

D-OCHO 7th May 2020 17:38


Originally Posted by buzz21 (Post 10775614)
window heat elect. connector
r. no warning light for pilot s side window open.

Or window overheat sensor

AKO 7th May 2020 17:41

It's for the window heat. There is no sensor for an open cockpit window. I guess Boeing figured you would hopefully know if the window was open and wouldn't need a caution light.

Jimbo2Papa 7th May 2020 17:53

So Window Heat connector it is.
Well done golfbananajam after all.

The cat's curiosity is assuaged.
Thank you gentlemen.

BSD - I chuckled at your comment about the Window Open Warning occurring at approx 90 kts.

Boeing did a training film years ago about such an eventuality...

https://cimg6.ibsrv.net/gimg/pprune....1f8e29c145.jpg


IRRenewal 7th May 2020 18:52


Originally Posted by Jimbo2Papa (Post 10775560)
No, the heated window connectors are further back.

Thus;

https://cimg9.ibsrv.net/gimg/pprune....c1b583f507.jpg

Don't think they're " Window Closed" sensors as I believe they can move.

Those two wiggly things the arrow is pointing at are the temperature sensors for the window heat. There are actually two separate sensors with a total of three wires/connection points (they share a common wire). This is so that if a single sensor fails (it does happen) they can switch to the second sensor without having to replace the whole window.

Auxtank 8th May 2020 06:53

Thanks for that IRR

Whinging Tinny 8th May 2020 09:00

AKO: I guess Boeing figured you would hopefully know if the window was open and wouldn't need a caution light.

They put a warning on the triple though.......

TURIN 8th May 2020 09:13


Originally Posted by AKO (Post 10775628)
It's for the window heat. There is no sensor for an open cockpit window. I guess Boeing figured you would hopefully know if the window was open and wouldn't need a caution light.

I think they put a stencil on the window frame in big letters.. WINDOW IS OPEN! 😁

Mr @ Spotty M 8th May 2020 10:53

TURIN, and their is me thinking that pilots are meant to be clever. :E

Pugilistic Animus 8th May 2020 17:21

It's a whosywhatsis or a thingamajig or whatchamacallit


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