DescendVia
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GPS Above FL240.

Fri Jan 30, 2009 2:48 am

Pretty straight forward question to something I'm a bit unsure of.

Does GPS also meet the requirement of DME above 24,000 feet? Or is it just for approaches and stuff and actual DME is required?

Thanks
 
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tb727
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RE: GPS Above FL240.

Fri Jan 30, 2009 4:48 am

Yep, GPS can replace the DME requirement above FL240 if it is IFR approved.
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Soku39
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RE: GPS Above FL240.

Fri Jan 30, 2009 8:18 pm

A little story, last year the FAA sent a notification to our flight school essentialy saying that our GPS units TSO no longer met the requirements for DME. However we already had the airplanes and the GPS unit was approved at the time of purchase. The planes had no stand alone DME, this essentialy made it so that we could not legally identify certain step down fixes, or DME fixes on different approaches. It was quire a pain in the ass until the Feds reversed their decision after realizing their mistake, and now we can use the GPS as DME. In short it depends on the TSO on your unit whether or not you can use it for DME.

It was weird as well, as the unit was still IFR certified, and we could still shoot all kinds of approaches with it.

[Edited 2009-01-30 12:19:49]
The Ohio Player
 
DescendVia
Topic Author
Posts: 141
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RE: GPS Above FL240.

Fri Jan 30, 2009 8:41 pm



Quoting Tb727 (Reply 1):

I thought so but wanted to be sure........

Thanks!
 
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tb727
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RE: GPS Above FL240.

Sun Feb 01, 2009 1:27 am



Quoting Soku39 (Reply 2):
A little story, last year the FAA sent a notification to our flight school essentialy saying that our GPS units TSO no longer met the requirements for DME. However we already had the airplanes and the GPS unit was approved at the time of purchase. The planes had no stand alone DME, this essentialy made it so that we could not legally identify certain step down fixes, or DME fixes on different approaches. It was quire a pain in the ass until the Feds reversed their decision after realizing their mistake, and now we can use the GPS as DME. In short it depends on the TSO on your unit whether or not you can use it for DME.

Which is funny because even though it doesn't "on paper" meet the requirements anymore, I guarantee it is way more accurate than a normal DME.
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Soku39
Posts: 1731
Joined: Fri Nov 03, 2000 7:16 am

RE: GPS Above FL240.

Sun Feb 01, 2009 4:00 am



Quoting Tb727 (Reply 4):
Which is funny because even though it doesn't "on paper" meet the requirements anymore, I guarantee it is way more accurate than a normal DME.

It's the FAA, I've learned that common sense in professional aviation is not tolerated.
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tb727
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RE: GPS Above FL240.

Sun Feb 01, 2009 4:17 am



Quoting Soku39 (Reply 5):
It's the FAA, I've learned that common sense in professional aviation is not tolerated.

LOL yes very true, that would make an awesome T-shirt!
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Fly2HMO
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RE: GPS Above FL240.

Sun Feb 01, 2009 4:47 am



Quoting Tb727 (Reply 6):
LOL yes very true, that would make an awesome T-shirt!

The first person here to walk to his/her local FSDO wearing that shirt and coming out alive gets a cookie Big grin

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