Always Derive 121 Mins?

J

Jay Fly

New Member
Just need some quick clarification. Under FAR 121 I know that in order to derive minimums you use the 1 nav, 2 nav rule adding 400&1 and 200&1/2 respectively. My question is if there are alternate minimums listed on the approach chart do you use those? Does it depend on which minimums are lower/higher?
 
Use derived mins for 121 ops. As I recall, the 800/2, 600/1 junk you see on the back of the 10-9s are for Part 91. Consult your ops specs for details (C055).
 
C055 allows us to ignore the alternate mins published on the 10-9 pages and use derived minimums.

That's our C055. Other's may be different.
 
Unless you're in Birmingham :)
 

Attachments

  • BHM takeoff mins.JPG
    BHM takeoff mins.JPG
    115.8 KB · Views: 208
The text of C055 requires that it be the sole source for deriving alternate minimums. Period.

That INCLUDES when alternate minimums might be specified in an FDC NOTAM. However, if the FDC sez that Alternate Mins are NA (say due to an unmonitored navaid) then that does apply.
 
One thing I forgot to add is that you do have to look at the For Filing As Altn table to see if a given approach is usable to derive alternate mins from. For example, lets say that you have an ILS and a VOR, but the table sez that the ILS is NA when tower closed - that still does apply, even to a 121 operator, if you are planning on using it when the tower is closed. You then do the 1 nav, 2 nav to determine your actual minimums. The actual mins in the table are irrelevant, but if they are marked as NA, that NA also applies for a 121 operator.
 
braunpilot said:
I didn't realized that you guys got screwed that bad down there.
Click to expand...

It's just the one runway, although the reduced t/o mins on 24 only get you to 3/4. I haven't even looked at 18/36 because I haven't needed it, and it's closed right now anyway.
 
You must log in or register to reply here.
Back
Top