When you install the antenna, the alignment arrow must point forward.

The lower seal comes into view when you pull the lower bearing down.

Make sure that the flaps are retracted and the aileron trim handwheel is in the zero position.

Close the flow control and shutoff valves for the air conditioning packs.

These tests may require supplemental ground support equipment and should be more specific and detailed than an operational test.

The fuel flow transmitter measures the fuel mass-flow that goes to the manifolds and fuel nozzles.

If you select abort during the test, the test stops and the CDU shows the test abort page.

The turbine clearance control sensor supplies the EEC with temperature data from the high pressure turbine shroud.

The servo fuel heater attaches to the engine oil/fuel heat exchanger.

The combustor mixes air from the compressors and fuel from the fuel nozzles.

Notes call attention to methods which make the job easier, or provide supplementary or explanatory information.