Originally Posted by
JustAMushroom
I don't think this says what you think it says. In the end it says specifically ..." On the other hand, there would be no illegality in using any or all of the 45-minute fuel supply required under § 121.639(c) provided that such use became necessary as a result of circumstances or events not reasonably foreseeable despite full compliance with §§ 121.639 and 121.647."
These ruling talk about reasonable expectations of missed approaches. Not unknowable go-arounds.
I don't think you read the second one completely. It is pretty clear. Missed approach, go around, call it what you want, you gotta have fuel for it before you take off, no matter what the weather or the circumstance of the go around. If its a surprise, it doesn't matter, this LOI clarifies the fact that you have to have fuel for a go around or missed at your destination regardless of whether or not there is an alternate.
"Regardless of whether you are dispatched without a designated alternate airport, you must consider a possible missed approach at the destination airport (note that the rule does not say missed approach at alternate destination airport) in your required fuel calculations."