The nose landing gear was broken in a hard landing.

A. This procedure is only void in digital mode.

B. This procedure is only valid in digital mode.

C. This procedure is only ineffective in digital mode.

A. The basis for assuring an airplane remains airworthy and safe to operate is to combine the manufacturer＇s requirements with sound inspection and maintenance practices.

B. To ensure airworthiness and safe operation of an airplane, it is essential to follow the manufacturer＇s instructions in the utilization of airplane, and perform sound inspection and maintenance practices as well.

C. Airworthiness and safe operation are fundamental to aircraft utilization as required by the manufacturer, so sound inspection and maintenance practices are carried out.

A. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shall also state precautions to be obeyed.

B. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shalln’t include precautions to be obeyed.

C. The removal/installation portion shall hardly state the sequence of steps required to move and reinstall a component or unit. This portion shall also include precautions to be watched.

A. Landing gear is left for ten minutes.

B. Landing gear should be kept extended for ten minutes.

C. Extend landing gear after ten minutes＇ retraction.

A. If the valve is the source of the fuel leak, discard the valve seals and install new ones.

B. If the fuel leaks out of the valve, reinstall the valve seals.

C. If the fuel leak flows towards the valve, discard the valve seals and install new ones.

A. The manufacturer may choose to include information on Unscheduled Maintenance Checks, including Time Limits/Inspections and Maintenance Checks, in a separate manual. Reference points must be listed in the maintenance manual.

B. For Unscheduled Maintenance Checks, the manufacturer will have the choice to separate the information of Time Limits/Inspections and Maintenance Checks in manuals. The manual can be the Maintenance Manual.

C. The information on Unscheduled Maintenance Checks should be provided in the Maintenance Manual including Time Limits/Inspections and Maintenance Checks. Whether to include these information in an other manual is at the manufacturer＇s option.

A. Those units and components are used to keep account of data that is unrelated to a particular system.

B. The purpose of those units and components is to obtain values that are independent of a particular system.

C. The function of these units and components is to save the files that have nothing to do with a peculiar system.

A. This document provides supplementary information to the applicable manual.

B. This document provides primary information to the applicable manual.

C. This document provides special information to the applicable manual.

A. Manufacturer determines specific range properly to describe sophisticated and professional information. The information can be put in Maintenance Maunal or other documents.

B. Detailed information on more intricate and specific subjects can be written in two ways: Maintenance Manual or individual documents. The two ways are dependent on manufacturer＇s option properly.

C. It is up to the manufacturer to decide where and to what extent to include detailed information about more sophisticated and professional topics, either in the common Maintenance Manual or in another new documents.

A. Attach the aft cargo compartment forward bulkhead central panel.

B. Mount the front cargo compartment backward bulkhead center panel.

C. Fix the aft bulkhead forward panel to the forward cargo component.