Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP)
Ground Event / Encounter Ground Strike - Aircraft
Aircraft Aircraft Damaged
Procedure
SFO was using only 28L/R this day due to runway construction on 1L/R. Taxied out to 28L. Holding short of 28L; Tower asked us if we had the numbers for 28R. We said we did. 777 was cleared for takeoff 28L. We were instructed to 'Cross 28L; caution jet blast; line up and wait 28R' The captain taxied across 28L as the 777 was departing and we felt our airplane dip to the right from the jet blast. He immediately put full left aileron to counteract the jet blast. We felt nothing other than the airplane tip to the side. We departed. Upon arrival at our destination; I performed the walk around and found a scrape under the right wing. We contact maintenance and the captain wrote up the issue.ATC cleared us to cross 28L immediately after clearing the 777 to depart. There was another aircraft on short final for 28L so it was very clear that we had to get across quickly. ATC should have waited for a larger gap to clear us to cross; rather than forcing us to cross so soon behind a heavy jet.I should have spoken up and told the captain to wait a few more moments before crossing; explaining that the jet blast was dangerous. ATC should have given us more time to cross the runway rather than squeezing us in between a heavy jet departing and another jet landing.
CRJ-200 First Officer reported they were told to cross SFO Runway 28L as a B777 was taking off. The jet blast caused the CRJ to dip and scrape the right wing.