Low flight over OKC
06-24-2024, 12:43 PM
#111
Moderator
Joined APC: Sep 2011
Posts: 4,802
Because we didn't purchase Integrated Approach Navigation. So to fly an LNAV/VNAV approach, you need to set a lower altitude or it'll level off at the MCP-set altitude. Once you're at least 300 feet below missed approach altitude, you can set that and it'll continue the VNAV descent, but you can't do it earlier or it'll level off.
06-24-2024, 12:52 PM
#112
Gets Weekends Off
Joined APC: Dec 2021
Posts: 513
06-24-2024, 04:13 PM
#113
Gets Weekends Off
Joined APC: May 2022
Position: Clappin' Rip Bombs
Posts: 419
My cat told me that it was a new hire and a captain that retires tomorrow. The FO spun in zeroes and put it in vert speed with -3000 set and then said "YOLO" before getting out their phone to text their mom so that she could come pick them up from the airport because that's how they did it at SkyWest.
06-24-2024, 04:35 PM
#114
Gets Weekends Off
Joined APC: Jul 2006
Posts: 2,918
We (AA) have always set the missed approach altitude on an RNAV approach after 1)passing the FAF and 2) waiting until 300ft below it. We absolutely never, ever set zero in the altitude window and I have a hard time believing anyone ever did... that is a bad setup. Not saying that was the case here, just providing some OAL perspective. In any case... the system worked and something worse was prevented. Glad everyone was ok, now it'll just be another recurrent scenario/video. We've had our share of those...
06-24-2024, 06:01 PM
#115
Gets Weekends Off
Joined APC: Jun 2010
Position: DOWNGRADE COMPLETE: Thanks Gary. Thanks SWAPA.
Posts: 6,781
Because we didn't purchase Integrated Approach Navigation. So to fly an LNAV/VNAV approach, you need to set a lower altitude or it'll level off at the MCP-set altitude. Once you're at least 300 feet below missed approach altitude, you can set that and it'll continue the VNAV descent, but you can't do it earlier or it'll level off.
06-24-2024, 06:04 PM
#116
Gets Weekends Off
Joined APC: Jun 2010
Position: DOWNGRADE COMPLETE: Thanks Gary. Thanks SWAPA.
Posts: 6,781
We (AA) have always set the missed approach altitude on an RNAV approach after 1)passing the FAF and 2) waiting until 300ft below it. We absolutely never, ever set zero in the altitude window and I have a hard time believing anyone ever did... that is a bad setup. Not saying that was the case here, just providing some OAL perspective. In any case... the system worked and something worse was prevented. Glad everyone was ok, now it'll just be another recurrent scenario/video. We've had our share of those...
06-25-2024, 04:11 AM
#117
Gets Weekends Off
Joined APC: Jul 2006
Posts: 2,918
Whack, I could keep you up for hours discussing the stupid stuff we've done over the years as well... luckily a lot has changed for the better with the integration of different pilot groups and cultures. Again I'm just glad nothing worse happened here. I had my own little incident a few years ago that made the quarterly ASAP newsletter thanks to not having enough info in the company pages on what was supposed to be a regular RNAV visual into KBUR... that one added more than a few gray hairs while taking a few minutes off my life span
06-25-2024, 06:56 PM
#118
Gets Weekends Off
Joined APC: Jan 2024
Posts: 103
Because we didn't purchase Integrated Approach Navigation. So to fly an LNAV/VNAV approach, you need to set a lower altitude or it'll level off at the MCP-set altitude. Once you're at least 300 feet below missed approach altitude, you can set that and it'll continue the VNAV descent, but you can't do it earlier or it'll level off.
06-25-2024, 07:38 PM
#120
Gets Weekends Off
Joined APC: May 2005
Position: B777/CA retired
Posts: 1,502
I'm basing this off what I've seen several times, typically from the most senior captains. PF is assigned altitude like 3000. Re-cruises the box. Airport in sight, cleared for visual. PF hits direct to the last point prior to runway and says, "We're visual, setting tdze (or zeros). PF hits altitude intervene and vnav goes into descent mode and immediately sets FUM speed. PF says, why'd it so that? So he hits speed intervene and dials 250 knots. Airplane goes into idle descent mode.
Why would you set field elevation or zeros? Every place I've ever flown says to set FAF altitude or minimums ( depending on the manufacturer, then set MAP altitude inside the FAF. No barrier to descending to the ground doing it the way you described.
Thread
Thread Starter
Forum
Replies
Last Post
