The bells at Notre Dame tolled 228 times for the 216 passengers and 12 crew on Flight 447.View Technologos on most probable chain of failures of AF447 aircrash mistery http://www.xmail.net/technologos/ because of electronic problems, caused by a lightning discharge interfered with the computers that control the aircraft, navigation equipment, or the weather radar. <br /><br />Air France Flight AF447 Fatal Misterious Failure. Paul-Louis Arslanian, chief of the French civil aviation ministry's bureau of investigation:"We may be unable to find the black boxes due to circumstance and logistics," he said. <br />Aviation experts have said black boxes are virtually indestructible and designed to withstand a high impact crash and underwater pressure. <br />But Arslanian warned that even if they are recovered it may be found the data is useless to the investigation or has been destroyed in the incident.