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Identify component in 737 cockpit window please

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Identify component in 737 cockpit window please

Old 7th May 2020, 16:16
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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


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Old 7th May 2020, 16:25
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Total guess.

DV Window 'closed' prox sensor?
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Old 7th May 2020, 16:30
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Originally Posted by Jimbo2Papa View Post
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?
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Old 7th May 2020, 16:35
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No, the heated window connectors are further back.

Thus;



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

Last edited by Jimbo2Papa; 7th May 2020 at 16:49.
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Old 7th May 2020, 16:57
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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.
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Old 7th May 2020, 17:07
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So Turin was correct? It's a power cable for the DV Window Closed sensor?
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Old 7th May 2020, 17:27
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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.
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Old 7th May 2020, 17:28
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window heat elect. connector
r. no warning light for pilot s side window open.
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Old 7th May 2020, 17:38
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Originally Posted by buzz21 View Post
window heat elect. connector
r. no warning light for pilot s side window open.
Or window overheat sensor
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Old 7th May 2020, 17:41
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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.
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Old 7th May 2020, 17:53
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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...



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Old 7th May 2020, 18:52
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Originally Posted by Jimbo2Papa View Post
No, the heated window connectors are further back.

Thus;



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.
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Old 8th May 2020, 06:53
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Thanks for that IRR
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Old 8th May 2020, 09:00
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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.......
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Old 8th May 2020, 09:13
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Originally Posted by AKO View Post
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! 😁
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Old 8th May 2020, 10:53
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TURIN, and their is me thinking that pilots are meant to be clever.
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Old 8th May 2020, 17:21
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It's a whosywhatsis or a thingamajig or whatchamacallit
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