Originally Posted by
lindros2
They have to be careful.
On my flight earlier this year, United flagged an APU failure resulting in 90 minute delay as “refueling vendor delay”.
i screenshotted it, sent it to them and the DOT, and they got fined / in trouble because they refused compensation for people with jacked up connections.
A vendor fueling delay or a MX delay are both "controllable" (i.e. you get compensation).
Delay codes get changed fairly frequently (until about 6hrs after departure). When I used to work for UA we'd spend half an hour arguing over delay coding for a 5 minute delay. Uncontrollable delay codes usually don't change, it's the controllable ones that get argued about (ramp vs gate vs inflight vs MX vs. fueling vs catering, etc etc.).