673、These tests should require no special equipment or facilities other than that installed on the aircraft and should be comparable to the tests performed by the flight crews

650、The gyroscope will become stable after approximately 15 seconds.

649、The generators supply a three-phase voltage.The frequency of this voltage increases when the generator rotor speed increases.

648、The gas charging valve is on the top of the shock strut of the nose landing gear.

647、The function and operation of each unit in the system should be described as well as the location of the units.

646、The first step should always be job Set-up and last should be Close Up or Clear-Up.

645、The elevators must move symmetrically.

644、The control units is installed aft of the cockpit.

643、The color of the indicator changes to green.

642、The Check list may also contain supplemental information pertinent to the operation of the airplane.

641、The center of gravity(is the point an airplane would balance if suspended.