When accumulated revisions, including back-up pages, total over 60% of the total pages in the manual, a reissue of the manual should be prepared.

A.When the cumulative revised pages (including back-up pages) exceeds 60% of the total pages of the manual, a reissue should be prepared.

B.If the updated pages, including back-up pages, were less than 60% of the total page of the manual, a new manual should be copied.

C.Up to 60% of total pages (including back-up pages) were accumulated by mistake, the manual should be rewritten.

正确答案：A

If you can not engage the rod and the piston, the length of the new rod is possibly incorrect.

Descriptive Data shall be supplied for standard and optional engine and propeller installations and fuel and oil systems.

Print the page number and date of issue or revision at the bottom of each page.

Brake system explains how to recognize impending problems and what to do if malfunctions occur.

The cockpit voice recorder records signals from four audio inputs during the flight.

Make sure that the arrow on the check valve points away from the ground supply duct.

Keep all the parts that are serviceable and discard those that are broken.

If you cannot install the rigging pin easily, adjust the length of the rod.

The Check List may be followed by additional information to provide pilots with a better understanding of the reasons for actions in the Check List.

WARNING,if not correctly followed, could result in personal injury, or loss of life.