What device prevents the landing gear from being retracted while the aircraft is on the ground?

Ground locks are used in landing gear as extra insurance that the landing gear will remain locked in position while the aircraft is on the ground. A ground lock is an external device that is placed in the retraction mechanism to prevent its movement.

Can you retract the landing gear?

Well, the short answer is no. Modern airplanes have something called “Squat switch”. Essentially it is a sensor, which can tell if a plane is still standing on the ground. When the squat switch is activated, meaning that the plane is still on the ground, it is physically impossible to retract the landing gear.

What is the importance of the emergency extension systems and landing gear safety devices in an aircraft?

The emergency extension system lowers the landing gear if the main power system fails. There are numerous ways in which this is done depending on the size and complexity of the aircraft. Some aircraft have an emergency release handle in the flight deck that is connected through a mechanical linkage to the gear uplocks.

What is the importance of the landing gear safety devices in an aircraft?

L anding gear safety devices have many important functions, among the most critical of which is to prevent the landing gear from retracting or collapsing while the aircraft is on the ground. Gear indicators are another important safety device.

What are the important requirements to do landing gear system maintenance?

Inspect landing gear wheels for cleanliness, corrosion, and cracks. Check wheel tie bolts for looseness. Examine anti-skid wiring for deterioration. Check tires for wear, cuts, deterioration, presence of grease or oil, alignment of slippage marks, and proper inflation.

What are the safety precautions that you should take prior to working on aircraft?

Bump caps protect you from an accidental collision with an aircraft part. Hard hats protect you from falling objects. Safety glasses, a face shield, and goggles protect your face and eyes, depending on the task and materials. Coveralls and rubber gloves and boots protect your hands and feet from chemicals.

What is the indication that retractable landing gear is locked down?

green lights
The landing gear retracts or extends in about seven seconds. Three green lights located below the selector indicate when the gear is down and locked, and a red Warning Gear Unsafe light at the top of the panel illuminates when the gear is in transit. When all gear lights are out, the gear is up.

What position must be indicated for retractable landing gear?

If a retractable landing gear is used, there must be a landing gear position indicator easily visible to the pilot or to the appropriate crew members (as well as necessary devices to actuate the indicator) to indicate without ambiguity that the retractable units and their associated doors are secured in the extended ( …