Utilizing an airplane as intended by the manufacturer, combined with sound inspection and maintenance practices , forms the basis for assuring the airplane remains airworthy and safe to operate.

A. The AFDS monitors three separate autopilot channels and a single Mode Control Panel(MCP)

B. The AFDS constitutes three separate autopilot channels and a single Mode Control Panel(MCP)

C. The AFDS contains three separate autopilot channels and a single Mode Control Panel(MCP)

A. Detach the sensor to establish a physical connection with the adjoining structure.

B. Install the sensor to block access to the adjacent structure.

C. Take out the sensor to reach to the neighboring structure.

A. An "Airplane Weighing Form" shall be included in each handbook and the form shall contain an airplane side view that shows the location of weighing points (using jacking points or landing gear) relative to the datum line.

B. Each handbook shall provide an aircraft side view that is included in an "Airplane Weighing Form" to show the position of weighing points (using jacking points or landing gear) related to the datum line.

C. An airplane three view that shows the weighing points ((using jacking points or undercarriage) relative to the datum line shall be excluded in an "Airplane Weighing Form" of each handbook.

A. The main gear leg could be held by the side stay.

B. The main gear leg could be hampered by the side stay.

C. The main gear leg could be contained by the side stay.

A. Worn components should be replaced even if the damage is below the maximum limits.

B. Replace components that are worn beyond their maximum limits.

C. The maximum limits can not be exceeded when repairing the worn components.

A. The auxiliary battery and auxiliary battery charger and the main battery connect together during non-normal conditions to help supply power.

B. In normal conditions,the auxiliary battery and auxiliary battery charger should be disconnected.

C. In non-normal conditions,the auxiliary battery and auxiliary battry charger should be disconnected.

A. The manufacturer shall prepare all text in either one or two columns with justification at his own discretion , but, two columns are preferable for readability.

B. Manufacturers shall prepare all text both in one and two columns separately; however, two columns are better for reading.

C. According to the manufacturer＇ explanations, all text shall be prepared in one or two columns; however, two columns have better visual effect.

A. Take care to the absence of leakage during the execution of each step in the valve test.

B. Throughout the valve test, verify that there are no obvious signs of leakage at each step.

C. Make certain that no leakage is present as you proceed with each step of the valve test.

A. Retesting and reviewing test results are optional due to discrepancies in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.

B. It is very important to do the test again and confirm test results because of differences in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.

C. It is mandatory to retest and evaluate test results to make sure the differences in the fuel/water sample and the ability of the detection kits to witness the level of microbial growth.

A. Ensure that no other repairs are underway in the repair area before undertaking this procedure.

B. This procedure can only be done if there are other repairs in the repair area.

C. Only proceed with this procedure if there are concurrent repairs being carried out in the designated repair area.