WHELEN 70509-05 BEACON 28V R/W

Part# 11-03292
MFR Model# 01-0770509-05
Model #ApprovalsDescriptionPart No.
7050905FAA TSO-C96a28V, red/white lens11-03292


Self-contained halogen flashing anti-collision light with the same mounting pattern as the factory installed beacon on single engine Cessna's 1967 & later. Available in three different lens colors, Aviation Red, Aviation White and Split Aviation Red/White. When used in conjunction with the model 50519 mounting adapter, it can replace rotating beacons with the 3-3/4 dia. mounting hole. Note: Not recommended for installation on helicopters or twin engine aircraft.
California Prop 65 Warning Symbol

WARNING: This product may expose you to chemicals including Methylene Chloride, which is / are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to


  • Drawing Number: 70509
  • Weight: 0.27 lbs. (122gm)
  • Height: 3.75 (95mm)
  • Diameter: 2.65 (67mm)
  • Power Consumption: 2.7 amps @ 14 VDC, 1.3 amps @ 28 VDC
  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed


Worked just as advertised, and was much brighter than my old one

Jay B
May 16, 2019

At the end of the documents it says obtain Field Approval thus what is being done to optain field approval. Any document sample copies available. Thanks

October 11, 2018

Very nice replacement for originals. Easy install and very bright. Priced well.

Henry K
June 8, 2017

Easy installation and good replacement for original.

February 20, 2017

Great replacement for older troublesome flashing units. If the light is on solid it is wired backwards. The plug comes from the factory backwards from some Cessna plugs.

Ross D
February 23, 2013

Easy to install. Very Bright. I would have given this 5 stars but the I believe the item is over priced!

Chris D
August 10, 2020

Lots of positives: light weight, easy to install, relatively low cost. I changed the stabilator fin cap because of smaller diameter. However I was surprised to have greater RFI than the HRCFA strobe I replaced. I did not expect this at all. I could barely hear the strobe in my radio (garmin 200), but now there is prominent noise. Perhaps it is not as electrically simple as it looks.

John S
September 1, 2019

The light works well, as expected, but it does NOT come with the adapter plate shown in the picture. That needs to be ordered separately for an extra $90.

Edward H
July 12, 2019

nice NOT led beacon. better than the factory beacon on the early Cessnas as less amps and you get to remove the power supply which is another source of failure on the old beacons. But, way to expensive for a plastic base, plastic lenses, plastic base to bulb, and Its still just a halogen beacon with 80$ replacement bulbs. if you can, double the money for the LED. I know......frustrating.:)

Goodfriend A
July 6, 2019

Good unit,

February 27, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What are the dimensions of the Whelen 70509 flasher?

We have added the install sheet and dimensions to the "Documents" tab of this web page. Please review them there.

Q: Can a replacement lenses be purchased for these Whelen Flashers?

Yes, please give us a call for the exact replacements lens you need and we can place a custom order for you.

Q: What is the candela rating of this Whelen model 70509 flasher?

This light meets the performance standards associated with 100 effective candela for airplanes with a type certificate prior to 1971.

Q: Is there any known RFI interference issues with this Whelen Model 70509 flasher?

Per Whelen tech: Being that the 11-03235 is not a high current assembly I have not heard of any RFI interference. This is in essence a flasher module with a filament bulb.

Q: Does the 3.75 adapter base come with it?

No, the mounting adapter part # 11-03238 is sold separately.

Q: Does this include the mounting bracket # 11-032338 as pictured?

No, the mounting bracket must be ordered separately. (See Accessories)

Q: What comes in the Whelen 70509 flasher box: the light and the cover or is everything separate?

It comes with the base, bulb, gasket, clamp ring, lens, and instructions.

Q: How much does the Whelen 70509 flasher weigh?

Approx 0.265 lbs.

Q: Do you have the approval documents to post for the Whelen Model 70509 flashers? PMA and STC?

It is not PMA or STC'd. It is FAA TSO'd and will have TSO marking on the light itself.

Q: Is it compatible with Whelen H103 adapter?

No, the H103 adapter is meant to be used with beacons.

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