Make sure that all the galley compartments are empty.

Circle-to-land maneuver is the maneuver made by the pilot to align the aircraft with the landing runway when a linear instrument approach is not possible or required. At tower control airports, air traffic control clearance must be obtained and a visual reference of the airport must be established before such maneuvers can be performed.

Distribution of air conditioning system is used to induct and distribute air. Includes equipment rack cooling systems and items such as blowers, scoops, ducting, inlets, check valves, etc. Does not include valves which are part of pressurization and temperature control.

There are three types of placards and markings. A. Safety Data: These placards and markings are used for the flight crew, and passenger cabins, and for equipment safety. They include WARNINGS and CAUTIONS. B. Maintenance Data: These are servicing and maintenance instructions. C. By Local Regulation: The aircraft must have these placards and markings. When these types of placards are shown in Chapter 11, they are identified by (1).

Functional Test: That procedure required to ascertain that a system or unit is functioning in all aspects in accordance with minimum acceptable system or unit design specifications . These tests may require supplemental ground support equipment and should be more specific and detailed than an operational test. It should contain all necessary information to perform proficiency test to maintain system or unit reliability at an acceptable level ,without reference to additional documents.

Dissimilar metal corrosion refers to the corrosion that occurs when two or more different metals are in contact with each other in the presence of an electrolyte . In this situation, an electrochemical reaction is set up between the metals, which causes one of the metals to corrode more quickly than it would have done on its own.

Many altimeters contain linkages that rotate a numerical counter in addition to moving pointers around the dial. A quick reference window allows the pilot to simply read the numerical altitude in feet. The motion of the rotating digits or drum-type counter during rapid climb or descent makes it difficult or impossible to read the numbers. Reference can then be directed to the classic clock-style indication.

A turn coordinator senses and indicates the rate of both roll and yaw. The rotor of the gyro in a turn coordinator is canted upwards 30°. As such, it responds not only to movement about the vertical axis, but also to roll movements about the longitudinal axis.

The drain and vent system consists of lines collecting and carrying waste fluids and vapor overboard from the engine and nacelle accessories. Drains are provided to carry fluids from any point where lines and accessories may leak and where fluids may accumulate in a cavity. Fluid from forward and aft sumps, oil-fuel heat exchanger, VBV, and VSV are discharged overboard through drains. In addition, some drain lines serve as vents to carry air and vapor from the engine and accessory cavities.

Wires and wire bundles must be supported by clamps or plastic cable straps. Clamps and other primary support devices must be constructed of materials that are compatible with their installation and environment, in terms of temperature, exposure to ultraviolet (UV) light, and wire bundle mechanical loads. They should be spaced at intervals not exceeding 24 inches. Clamps on wire bundles should be selected so that they have a snug fit without pinching wires.

Systems consisting of several components, such as ice protection systems, may have Supplements for each component, such as propeller boots, wing and empennage boots, or heated airspeed static source, if the equipment is FAA Approved by component and marketed individually.