1.   A hydraulic failure, compounded by erroneous computer software, has been pegged as the likely cause of the North Carolina crash.

2.   The hydraulic failures started about the time the Navy upgraded its fleet of Sea Knights with new, more powerful hydraulic pumps.

3.   There were at least two other incidents involving hydraulic failures on Sea Knights this year, both in California.

4.   A government spokeswoman said the aircraft returned to Hong Kong airport because of hydraulic failure in an engine, less than one hour after it departed for Nepal.

5.   That, along with the hydraulic failure, caused the aircraft prop rotors to change their pitch rapidly and dramatically, sending the airplane out of control.

6.   The Mumbai-Chennai-Singapore flight developed hydraulic failure before approaching the airport, airport officials told Press Trust of India.

7.   In Canada, Hill was livid after being forced out with hydraulic failure while David Coulthard was shunted out in the second lap.