B777 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 17478; Flight Crew Type 8789
Situational Awareness
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Other / Unknown; Ground Event / Encounter Other / Unknown
General None Reported / Taken
Aircraft
The new RAAS (Runway Awareness Advisory System) on the 777-300 will give two disturbing and distracting audio cautions when taking off on [BOS] Runway 9. We got an 'approaching 4L' caution followed by 'runway short' caution as we started the takeoff roll. This is VERY distracting; and I suspect a rejected takeoff will occur in the future on this 7000 FT runway...because of the audio cautions causing confusion.
B777-300 First Officer reported the Runway Awareness Advisory System alerts on takeoff from BOS Runway 9 are distracting and could potentially cause an unnecessary rejected takeoff.