Errr. the performance data for the ERJ135 is:
Performance
Maximum cruise speed 833km/h
Service ceiling 11,275m
Service ceiling, one engine inoperable 6,100m
Take-off run 1,700m
Landing run 1,360m
(LCY also requires a 5.5° descent angle insted of 3°)
If the take-off run is 1,700m and the runway length at the moment is approx 1.300m incl. starter strips, I see a problem even taking minimum fuel load etc. into account