Aviation Terms and Definitions

Steady green Cleared to land Cleared for takeoff ILS holding position sign ATC may hold you at this sign when the instrument landing system is being used at the airport. PAPIs Precision approach path indicators light units similar to the VASI but are installed in a single row of either two or four light units. The “Blossom Effect” Motion is invaluable in drawing the eye’s attention. Yet two aircraft on a collision course will appear virtually motionless to each other, maintaining a constant relative bearing. REILs Runway end identifier lights Airport Lighting (For further information and a complete set of approach consist of a pair of synchronized flashing lights located on each side of the runway threshold. Trace Ice becomes perceptible. Rate of accumulation is slightly greater than the rate of sublimation. DUAT Direct User Access Terminal system Steady red Stop or Give way to other aircraft and continue circling Runway Incursion Vestibular Illusions In the absence of visual reference, we rely on our vestibular system to keep us oriented. But as previously explained, this system is totally unreliable for this purpose when in motion. Duck-Under Syndrome A pilot may be tempted to make it into an airport by descending below minimums during an approach. There may be a belief that there is a built-in margin of error in every approach procedure, or a pilot may want to admit that the landing cannot be completed and a missed approach must be initiated.

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	Did You Know?
	FAA enforcement actions (certificate action or civil penalty cases) From the short reporting period of 10/1/03- 12/31/03. The FAA reported 82 cases of related certificate action or civil penalty case violations. Ranging fines of $750 to $50,000 on violations during this reporting time. Some fines for activity topics were: Training-Flight Crew, Flight Operations, Quality Control, Drug Testing, & other types of violations.