| 41. | The company overhauled aircraft engine gearboxes, hydraulic systems and instruments.
|
| 42. | As with the A380, there is no third hydraulic system.
|
| 43. | The aircraft has triple redundant hydraulic systems with only one system required for landing.
|
| 44. | Using a sophisticated hydraulic system, movers pushed the 4, 800-ton structure about 10 feet.
|
| 45. | Three hydraulic systems were also listed as potential problems.
|
| 46. | If both hydraulic systems are lost, the plane crashes.
|
| 47. | Hydraulic systems rely on high pressures ( usually over 7000 kPa ) to work properly.
|
| 48. | And with the engines gone, the plane would have no thrust, electrical or hydraulic systems.
|
| 49. | In a hydraulic system, the pressure is equal throughout.
|
| 50. | A high pressure relief valve provided overpressure protection to the hydraulic system and relieved at.
|
