Galileo is showing the following operational timetable for a random weekday in May, which would appear to suggest the extra rotation
is an Embraer.
TUE 06MAY03 LONDON/LEEDS/BRADFO *BD
1 LHR LBA 0650 0750 BD 422 Y9 ER4 B
2 LHR LBA 0850 0950 BD 412 Y9 100 B
3 LHR LBA 1305 1405 BD 414 Y9 100 B
4 LHR LBA 1725 1825 BD 418 Y9 100 B
5 LHR LBA 2100 2155 BD 420 Y9 100 B
TUE 06MAY03 LEEDS/BRADFO/LONDON *BD
1 LBA LHR 0700 0815 BD 411 Y9 100 B
2 LBA LHR 1050 1200 BD 413 Y9 100 B
3 LBA LHR 1535 1640 BD 417 Y9 100 B
4 LBA LHR 1905 2010 BD 419 Y9 100 B
5 LBA LHR 1955 2100 BD 421 Y9 ER4 B