Originally Posted by
vilas
I think you are mixing up. GA on AP all you do is hit TOGA and check FMA. You can't abandon automation because you can't execute properly. While setting up GA altitude is a weak spot needs to be done consciously or one can make a mistake of pulling into OP CLB. It has happened in 777 also. But you don't switch off AP for that. Moment SRS mode is engaged speed automatically becomes managed you don't managed speed it. Pilot who can't use automation for GA will have more problems in manual. All mistakes you mentioned are more likely to happen in manual because you have to fly the aircraft also.
Hello Vilas,
Sorry I missed your previous post.
All the go around that went wrong were indeed with AP off. I can remember at least 3 cases and 2 of them were considered serious as flaps overspeed occurred and one case quite significantly (over 20kt flaps overspeed) as the crew forgot the AP was off…
For Interception from above so far, I never had to revert to Raw data. But I agree in case of serious FMA confusion for example it can be considered to revert to raw data. I have witnessed and heard serious F*ck up during interception from above in line. The most serious one were going way below the GS as both pilots failed to arm the GS and to monitor the GS and they went way below the profile triggering GPWS alert…
Emirates had also a serious case of interception from above going seriously wrong that they even changed the Airbus SOP and can not do interception from above below the last clear altitude.
https://asn.flightsafety.org/wikibase/199901
I don’t think these kind of incidents would have happened if the crew were more pro efficient in these manoeuvres.
Sorry for the off topic. But I think it’s a nice discussion.
