1.   Critics of the program said the Marines and the manufacturers should have responded earlier to the documented hydraulic problems, and should have conducted better tests on the software.

2.   It was the second time in four days that hydraulic problems had forced a Sea Knight to make an emergency landing in California.

3.   The Chronicle reported in April that the plane in question reported hydraulic problems on at least four separate flights, in some cases forcing passengers to evacuate.

4.   The following month, Estepp ditched his helicopter into the ocean off Hawaii, bringing to at least three the number of Sea Knights lost because of hydraulic problems.

5.   The example of hydraulic problems in the Sea Knights shows how risky stopgap measures can be in patching problems in aging aircraft.

6.   The origin of the hydraulic problem was traced to work done last weekend, when technicians replaced a leaky rocket engine valve aboard Columbia.

7.   A TWA jet similar to the type involved in the recent Alaska Airlines crash experienced hydraulic problems before landing Friday night at Sky Harbor International Airport.

8.   Robinson said the nose went off the runway because the pilot had only limited steering in the front nose gear as a result of the hydraulic problem.

9.   Schumacher managed to control the field despite starting with a backup car after his main car suffered hydraulic problems in morning practice.

10.   This came despite a hydraulic problem in the morning practice dominated by Ralf and rookie teammate Juan Pablo Montoya.