Wing tip strobes

[Mooney1401]

I have a broken strobe light and can not figure out

What bulb I need to replace it with. It is powered by a whelen 

A490 supply and is mounted on bracket that 

Says use grimes reflection lamps only. Any ideas as to

What the part number is I need to order 

Or if I can put a whelen strobe light in there and 

What one that would be.  

[Jeff_S]

I have no answer to

your question, but I like the

poetry in which you've

phrased it!

[N9453V]

Quote: Mooney1401

I have a broken strobe light and can not figure out

What bulb I need to replace it with. It is powered by a whelen 

A490 supply and is mounted on bracket that 

Says use grimes reflection lamps only. Any ideas as to

What the part number is I need to order 

Or if I can put a whelen strobe light in there and 

What one that would be.  

[Mooney1401]

Thanks Andrew. I have a 78 M20J

[N9453V]

Mooney retrofitted my airplane in 1980 and I believe the same strobes were in use since 1977, so most likely you would need the following:

Left - Whelen A650PR14 (SDI/Hoskins/Grimes/BFGoodrich Part # 701303-1)

Right - Whelen A650PG14 (SDI/Hoskins/Grimes/BFGoodrich Part # 701303-2)

Tail - Whelen A500AV14 (SDI/Hoskins/Grimes/BFGoodrich Part # 701557-1M)

I ordered my replacement tail stobe from Aero Parts & Supply in Dallas (http://www.2aps.com/w3avwing.htm) and I believe they were cheapest. The tail is $148 and the left/right are $208.

Before ordering, just unscrew it and confirm the model number (just two screws to remove, you don't need to disconnect the wiring).

-Andrew

[OR75]

I am thinking based on the year/model that your original strobe was a Hoskins system.

The Wheelen A490 power supply is PMA'd for the original Hoskins and can be replaced by an A/P.

For the lens / assembly it is a different story.  The Wheelen A650 system is STC'd for pre-J only. It is not STC'd for the J model even if it is the same "flat" wing tip. So it required a 337 form it is was installed to replace the original Hoskins system or would  require a 337 to be installed.  

For the early Js, the lens / strobe is a Mooney part that you would need to get from Mooney. You can recognize them easily: the lens is a cheap plastic hemisphere that yellows and becomes uggly and opaque very quickly.  (Probably a good money maker but not a good long term strategy if you ask me).

  best woudl be to describe the lens you have or take a photo and we can zoom on a part number.

[jetdriven]

The first is a Hoskins.  Yes that is a can of beer.  The second is a Whelen.  Both on the same plane.  It looks dumb at night with the single flash on the left wing and the triple flash on the right, so I turn them off at night.

FWIW a Grimes tail light lens fits the Hoskins housing perfectly, then it remains clear forever, its glass.

[OR75]

I would pick the shiner bock in a heartbeat.

the grimes tail light lens is a good suggestion. I replaced my strobes with the wheelens as I was tired of those plastic uggly lenses

[M016576]

Quote: jetdriven

The first is a Hoskins.  Yes that is a can of beer.  The second is a Whelen.  Both on the same plane.  It looks dumb at night with the single flash on the left wing and the triple flash on the right, so I turn them off at night.

FWIW a Grimes tail light lens fits the Hoskins housing perfectly, then it remains clear forever, its glass.

[jetdriven]

Off an old crashed plane, or eBay.

[DaV8or]

Or here-

http://www.aircraftspruce.com/search/search.php

Sorry, my iPad won't let me attach the actual link.

[M016576]

Quote: DaV8or

Or here-

http://www.aircraftspruce.com/search/search.php

Sorry, my iPad won't let me attach the actual link.

[rob]

Quote: OR75

 

The Wheelen A490 power supply is PMA'd for the original Hoskins and can be replaced by an A/P.

 

[rob]

Quote: rob

Well, technically maybe not.  I just went through this.  My mechanic would not install without a field approval.

 

If you dig into the Whelen papaerwork, the A490TCF (Whelen part#  01-0770006-08) in their cross-reference guide is listed as PMA equivalent for the Hoskins, but Whelen has no approval for Mooney listed under their STC or PMA (although they have other applications listed) :

 

STC SA615EA:  Parts:01-0770006-( )

Whelen also says this power supply needs a 337 approval for a Mooney application, even though it is a cross referenced part.

 

 

[OR75]

Rob:

the A&P should be OK with replacing the power supply based on the PMA status of the 490 power supply unit. 

For the flashing assembly, it is a difference story. The J model is indeed not in the STC and the install would indeed require a form 337 / field approval. (even if the the early J models have the same "square" wing tips as the pre-Js.)  

[Zulee]

This string is about a year old and now so does anyone know if Whelen ever received the PMA for the A490 power supply to replace a J model or does it still require 337?

 

Thanks for the feedback

Rick

[Zulee]

I forgot to mention my 81 model has the Hoskins 701295-3 14 volt