New LED Lights

[BlackMammoth]

Just saw this, from June of this year. It's a OSB for LED landing and taxi lights. Sorry if this was already posted and I missed it.

http://support.diamond-air.at/fileadmin ... Lights.pdf

This is quite vague... Does anyone have the actual instructions / documents associated with this Service Bulletin? I can't figure out where to get them from on Diamond's website (if they are there at all).

[trepine]

I'm looking for them. In the meantime I found the temporary revision of the maintenance manual for the Orion 600 anti collision lights.

http://support.diamond-air.at/fileadmin ... 40-369.pdf


Sent from my iPad using Tapatalk

[Chris B]

Just saw this, from June of this year. It's a OSB for LED landing and taxi lights. Sorry if this was already posted and I missed it.
http://support.diamond-air.at/fileadmin ... Lights.pdf

This is quite vague... Does anyone have the actual instructions / documents associated with this Service Bulletin? I can't figure out where to get them from on Diamond's website (if they are there at all).

Hi Phil -

This vague OSB obliquely references two other documents with actual content...

1. Changes to the AMM: MÄM 40-635 - link
   This has a drawing with adjustment instructions, but nothing about the wiring.
2. Changes to the AFM: OÄM 40-362 - link
   This lists the specific LED part numbers.

FWIW, there are newer LEDs which are considerably brighter, but these require a 337...

Chris

[trepine]

What newer LED's are compatible?

[krellis]

Just saw this, from June of this year. It's a OSB for LED landing and taxi lights. Sorry if this was already posted and I missed it.

http://support.diamond-air.at/fileadmin ... Lights.pdf

This is quite vague... Does anyone have the actual instructions / documents associated with this Service Bulletin? I can't figure out where to get them from on Diamond's website (if they are there at all).

If you are looking for the Work Instructions ((WI-OSB 40-077), they are typically not published on the website. You may have to request them from Diamond and they are not always willing to provide them to someone other than a Diamond Service Center, at least in North America. My suggestion would be to reach out to Tech Support in Ontario and ask.

Krea Ellis

[BlackMammoth]

This vague OSB obliquely references two other documents with actual content...

1. Changes to the AMM: MÄM 40-635 - link
   This has a drawing with adjustment instructions, but nothing about the wiring.
2. Changes to the AFM: OÄM 40-362 - link
   This lists the specific LED part numbers.

FWIW, there are newer LEDs which are considerably brighter, but these require a 337...

Chris

Perfect!

Yes, these LEDs will be considerably brighter and also better focused. However I think that new brackets will be required to fit them.

PK

[Chris B]

What newer LED's are compatible?

Hi Gilman -

LEDs using Cree's latest chips are just amazingly bright. AeroLEDs Sunbeam LEDs (datasheet) fit in the DA40 wing, but the mounting is much different than the OEM incandescent lamps.

I have submitted a 337 to change from the OEM HIDs to Sunbeam LEDs (separate post forthcoming if this gets approved). Here is a comparison photo taken with fixed f-stop and shutter speed, with the LEDs mounted in a fixture directly above the HIDs. Note that the OEM landing and taxi HIDs are the same lamp, simply with offset angles. AeroLEDs supplies a Fresnel lens for the taxi light to widen the beam horizontally, which significantly improves peripheral visibility.

IMO the illumination is comparable, but draw your own conclusions:

The pair of LEDs draws <1A @ 28V, and can flash (for daytime recognition) using the existing wiring.

Chris

[Antoine]

Chris this is great. I see the Sunbeam weighs 8 oz. or 227 grams.
Do we know how much more the HID system weighs?

[Chris B]

Do we know how much more the HID system weighs?

Not yet.

The strobe ballasts weigh ~2lbs each, but the HID ballasts look smaller. Of course, they could be solid iron & copper...

Chris

[Steve]

I installed the HID system about 5 years ago. I will check my maintenance logs when I get home for the weight. My recollection was that they were about 1.5 pounds heavier than the standard incandescent installation.

Steve

**Just checked. Actually, the HIDs are 2.4 pounds heavier.**