Originally posted by flashcrash
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You have Sink rate Pull up in #2, Altitude call-out in #14, Sink Rate in #17 and Glide slope in #19.
The priority makes sense to me. Any call including the words "pull up"should have priority over almost anything (except a stall warning and a reactive windshear warning where you have to look very closely at the speed and pulling up can be a problem).
If you receive a pull up call, you should initiate an aggressive evasive maneuver to get all the climb you can from the airplane, so the altitude is not so important (you are going to climb as much as you can anyway).
The altitude calls are a snapshot. It tells you that you are crossing a milestone. There is only one chance to get an altitude call. If it is missed because of a higher priority call, it can't be triggered later when you are not at that altitude anymore. So if you missed, you lost that part of input for situational awareness for good.
The sink rate and glideslope calls are advisory caution messages and reflect a status. You normally don't receive a single glideslope or sink rate call because it takes some time bring the glide slope back to center or to reduce the sink rate. You may miss one instance of these calls to give room for an altitude call, but it is very likely that you will hav gotten or will have other such calls immediately before or after the altitude call, so situational awareness is not impacted. And in the unlikely event that the deviation from the glideslope or the exceedance of the sink rate is so short lived that you miss the only such call due to an altitude call, basally who cares. It was already corrected by when the altitude call is over, otherwise you would receive more instances of the call.
There was only 1 altitude callout since the GPWS warnings started, the "100" call.
Altitude callouts are not mandatory and are configurable by the airlines. I don't know what was the altitude callout schedule that this airline was using.
The other question is why there wasn't a pull-up call if pull-up was displayed in red on the PFD.
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