Kein absoluter Beweis, einige X3 737-700 kommen an dem Tag kaum oder gar nicht in den ACARS Logs vor, aber es passt ziemlich gut:
2009-08-19 X33494 STR VCE 1130 1245 737-700 MkeStr D-AHXE (?)
Danke dafür, ich habe inzwischen noch weitere Bestätigung für deine Hypothese gefunden. Die Flugnummer X33494 hatte zu der Zeit das Callsign X36163:
D-AHXJ (B73W X3) 1602 20090802 X36163 (EDDS-LIPZ) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXA (B73W X3) 1539 20090804 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 1643 20090809 X36163 (EDDS-LIPZ) [[+01:00] somewhere [1.70RC3]]
D-AHXJ (B73W X3) 1537 20090811 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1144 20090812 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 0854 20090814 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1619 20090816 X36163 (EDDS-LIPZ) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 0857 20090821 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXC (B73W X3) 1611 20090823 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1546 20090825 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXC (B73W X3) 1615 20090826 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXD (B73W X3) 0913 20090828 X36163 () [Penzberg,Germany]
D-AHXC (B73W X3) 1738 20090830 X36163 () [[+01:00] somewhere [1.70RC3]]
Die Route ist zwar immer nur Sonntags angegeben, aber auch an den anderen Wochentagen passen die Uhrzeiten zum Flugplan (
https://web.archive.org/web/20090612070026fw_/http://www.flughafen-stuttgart.de/sys/pdf/flugplan.pdf), inklusive der geänderten Zeit am 26.08.. Am gesuchten Tag gibt es keinen Treffer, aber an anderen Tagen schon, und Mittwochs immer im Umlauf HAJ-OLB-STR-VCE-STR-OLB-CGN:
D-AHXJ (B73W X3) 0615 20090812 X33460 (HAJ-OLB) [[+01:00] EDDH/HAM [1.70RC2]]
D-AHXJ (B73W X3) 1006 20090812 X33491 (OLB-STR) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1144 20090812 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1537 20090812 X33490 (STR-OLB) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXJ (B73W X3) 1855 20090812 X33143 (OLB-CGN) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 0606 20090715 X33460 (HAJ-OLB) [[+01:00] EDDH/HAM [1.70RC2]]
D-AHXB (B73W X3) 0909 20090715 X33491 (OLB-STR) [somewhere]
D-AHXB (B73W X3) 1144 20090715 X36163 () [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 1544 20090715 X33490 (STR-OLB) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXB (B73W X3) 1847 20090715 X33143 (OLB-CGN) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXD (B73W X3) 0620 20090617 X33142 (CGN-OLB) [[+01:00] Apeldoorn [1.70RC3]]
D-AHXD (B73W X3) 0943 20090617 X302WL () [somewhere]
D-AHXD (B73W X3) 0956 20090617 X33491 (OLB-STR) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXD (B73W X3) 1154 20090617 X36163 () [[+01:00] Pilzen [1.70RC3]]
D-AHXD (B73W X3) 1543 20090617 X33490 (STR-OLB) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXD (B73W X3) 1921 20090617 X33143 (OLB-CGN) [[+01:00] somewhere [1.70RC3]]
D-AHXD (B73W X3) 2111 20090617 X30143 () [[+01:00] EDDH/HAM [1.70RC2]]
Das passt zu deinem Vorschlag:
D-AHXE (B73W X3) 0956 20090819 X33491 (OLB-STR) [[+01:00] Klaus, Vorarlberg, Austria [1.70RC3]]
D-AHXE (B73W X3) 1538 20090819 X33490 (STR-OLB) [[+01:00] Aarau, Switzerland [1.70RC3]]
D-AHXE (B73W X3) 1845 20090819 X33143 (OLB-CGN) [[+01:00] Aarau, Switzerland [1.70RC3]]