Far 91.169 Alternate Airport

rickyrhodesii

rickyrhodesii

Well-Known Member
I'm a new instrument student so, please bear with me!

Far 91.169 states that I must file an alternate airport when +/- 1 hour of my ETA, the current/forecasted ceiling will be at least 2,000 above the airport elevation and the visibility at least 3SM.


91.169 (c) states for a non-precision approach weather minima of a ceiling 800’ and visibility 2SM.

Now the question: I’m flying to ABC, and file XYZ as my alternate. The current weather is 800/2 and the only approach available at XYZ is a NDB. Can I choose XYZ if the NBD approach's MDA is 860’?

That brings me to another/similar question.

If the reported weather is below the minimums, can I still attempt the approach?

Thanks!
 
rickyrhodesii said:
I'm a new instrument student so, please bear with me!

Far 91.169 states that I must file an alternate airport when +/- 1 hour of my ETA, the current/forecasted ceiling will be at least 2,000 above the airport elevation and the visibility at least 3SM.


91.169 (c) states for a non-precision approach weather minima of a ceiling 800’ and visibility 2SM.

Now the question: I’m flying to ABC, and file XYZ as my alternate. The current weather is 800/2 and the only approach available at XYZ is a NDB. Can I choose XYZ if the NBD approach's MDA is 860’?

Most likely XYZ will have non standard alternate mins if the only approach han an MDA greater than 800

That brings me to another/similar question.

If the reported weather is below the minimums, can I still attempt the approach?

Thanks!

Part 91, yes you can.
Click to expand...


hope this helps
 
rickyrhodesii said:
I'm a new instrument student so, please bear with me!

Far 91.169 states that I must file an alternate airport when +/- 1 hour of my ETA, the current/forecasted ceiling will be at least 2,000 above the airport elevation and the visibility at least 3SM.


91.169 (c) states for a non-precision approach weather minima of a ceiling 800’ and visibility 2SM.

Now the question: I’m flying to ABC, and file XYZ as my alternate. The current weather is 800/2 and the only approach available at XYZ is a NDB. Can I choose XYZ if the NBD approach's MDA is 860’?

That brings me to another/similar question.

If the reported weather is below the minimums, can I still attempt the approach?

Thanks!
Click to expand...

The MDA is one thing, but the issue here is the MDH, as the 800' requirement is AGL, not MSL. Very unlikely to be an issue absent something very unusual about the approach. I recall BIH having an MDH of 4000', but that was a special case with the terrain, for example.

On the second question, part 91 you can shoot what ever you want, but you still need to have the required flight visibility to continue past the MAP and land out of it.
 
Thanks for both responses.

The approach I was referring to has a triangle with the A and NA. "Alternate minimums are not authorized due to unmonitored facility or absence of weather reporting service."

How does this change things?
 
rickyrhodesii said:
Thanks for both responses.

The approach I was referring to has a triangle with the A and NA. "Alternate minimums are not authorized due to unmonitored facility or absence of weather reporting service."

How does this change things?
Click to expand...

Assume that's on the alternate and not the destination. If that is the case, then the answer is in the text you posted. As one instructor I had used to say "reasonable marine theory". Don't complicate it, it is what it is.
 
o ok thats cool...I used to work at RAS...Im going to start a thread here in a few about a M&G kind of thing this weekend...Me and a bunch of my friends are having a big crawfish boil and was going to invite some fellow jc'ers on here if anyone is around
 
MSUDAWG said:
o ok thats cool...I used to work at RAS...Im going to start a thread here in a few about a M&G kind of thing this weekend...Me and a bunch of my friends are having a big crawfish boil and was going to invite some fellow jc'ers on here if anyone is around
Click to expand...

crawfish....did someone say crawfish???? :rawk:
 
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