Use some auxiliary screws to assemble the unit temporarily.

The engine temperature system indicates the engine＇s temperatures, inclusive of cylinder head, exhaust (turbine inlet), etc.

The engine accessory cooling system is used to ventilate engine compartments and accessories, which is inclusive of several components such as valves, plumbing, jet pumps, vortex spoilers, etc.

Engine indicating refers to the units, components, and associated systems that indicate engine operation, inclusive of indicators, transmitters, analyzers, etc.

The engine indicating system is used to indicate temperature, pressure, and control positions of the air systems, which is inclusive of several components such as transmitters, indicators, etc.

Service doors refer to the exterior doors used primarily to gain access for servicing aircraft systems and equipment.

The exterior doors used primarily to gain access to cargo compartments. Includes items such as structure, latching mechanisms, handles, insulation, lining, controls, etc.

The exit doors used to facilitate evacuation that are not normally used for exit. Includes items such as structure, latching mechanisms, handles, insulation, lining, controls, etc.

The door used for entrance and exit of the passengers and crew to and from the aircraft. Includes items such as structure, latching mechanisms, handles, insulation, lining, controls, integral steps, ramps, and handrails, etc.

The doors inside the fuselage installed in fixed partitions. Includes items such as structure, latching mechanisms, handles, lining, etc.

Stairs whose primary structure is a door shall be covered under the appropriate topic. Includes items such as structure, actuating mechanisms and controls, handrails, etc.