330.What are the manual depressurization valves provided for ?

331.What is the purpose of the pressure relife valve?

330.What are the manual depressurization valves provided for ?

329.When can the APU pressurize the reservoirs ?

328.During which operation is the leak measurement valve closed automatically ?

327.What can the hand pump be used for ?

326.How can the LH wing be supplied independently during leak measurement test ?

325.When is the Engine Driven Pump in the depressurized mode ?

324.When does the Ram Air Turbine deploy automatically ?

323.What does the electric pump pressurize the Blue system ?

322.When is the engine fire shut-off valve closed ?