Peoples Express Exemption 3585
 

To use the exemption you need a 2nd alternate that is "Golden". So you have destination(crappy), alternate(crappy), 2nd alternate(golden).

Why not just file destination + 2nd "golden" alternate initially and your good without exemption. Is it because you cannot land at any airport not on dispatch release and you most likely will get into one of the first two, where you really want to land.

Trying to understand why you would ever use this if your legal with just your destination and golden alternate.

EX 3585 applies to the destination and/OR the first ALT. In other words if your destination wx is below mins in the conditional language (TEMPO, PROB, BECMG) but your first ALT is suitable, a second ALT must be listed due to the destination wx.

If your first alternate is suitable, why couldn't you just depart with your destination and a suitable(legal) alternate ?

One more question, why not just list the second alternate only initially and not worry about the first alternate with marginal taf remarks in the body?

You've read Richie Lengel's explanation in Everything Explained for the Professional Pilot, right? He gives the best explanation of it I have heard. It helps if you know the background of the rule, how People's Express had a weak meteorology department and requested a way around that weakness, which the FAA granted with this rule.

Slough,

I think you are confusing two different things here. A 2nd ALT is required in two scenarios.

1) Marginal wx at the destination AND first alternate (marginal defined by company opspecs) (Both Airports considered)

2) EX 3585 used due to wx below minimums in conditional language at the destination AND/OR first alternate. (One or Both Airports considered)

Because your destination is still below minimums.

This is the understanding I have. At my company, marginal WX is 600-2

If you have a destination and two alternates, one of those alternates being good enough weather to be listed as the only alternate:

Why not just list your destination and the good weather alternate and forget about the marginal weather alternate? That is what is confusing me.

Because it's further out of the way and would be a poor place to offload passengers/fuel back up?