Hydraulic Flashcards
What are the three different types of hydraulic system malfunctions that can be encountered?
Underpressurization, Overpressurization, or Overtemp
When will the hydraulic caution light come on for underpressurization?
1500
What is indicated by illumination of the hydraulic caution light with normal or high hydraulic pressure?
Overtemp
What should be done immediately whenever an overtemperature condition exists?
Shut the corresponding engine down. If the right engine is to be shut down, check crossover, consider lowering flaps to 60% before shutting the engine down in absense of a good cross. If crossover is good, leave generator off.
If pressure is high, but not accompanied by a caution light or sluggish controls, land as soon as ____.
possible
What will be inop if the utility hydraulics fail?
Nosewheel steering
Stability augmentor
Normal landing gear extension
Speed brake
What should you do with dual hydraulic failure (both gauges read zero)?
Eject
If one hydraulic system reads zero, hydraulic system transfer could occur. In this case, flight time could be limited to ____ minutes.
35
If utility hydraulic pressure is depleted, what should you do after you land?
Stop straight ahead and have gear pins installed prior to clearing the runway
What is indicated by simultaneous illumination of the LEFT/RIGHT GENERATOR and UTILITY/FLIGHT HYDRAULIC caution lights for the same engine?
Complete airframe mounted gearbox failure
What do indications of complete airframe mounted gearbox failure closely resemble?
Engine seizure. Monitor engine instruments to make sure you know what you have.
Can you operate the engine with a complete airframe mounted gearbox failure?
Yes, if the gearbox shaft fails at the designed failure point, there is no associated vibration, the engine can be operated normally
If the gearbox itself fails (gears, bearings, etc) and excessive vibration results, the engine should be shut down.
