Order 7110.65P, Air Traffic Control, with changes

8/5/04Pilot/Controller GlossaryLOW ALTITUDE AIRWAY STRUCTURE− Thenetwork of airways serving aircraft operations up tobut not including 18,000 feet MSL.(See AIRWAY.)(Refer to AIM.)LOW ALTITUDE ALERT, CHECK YOUR ALTI-TUDE IMMEDIATELY−(See SAFETY ALERT.)LOW ALTITUDE ALERT SYSTEM− An automatedfunction of the TPX-42 that alerts thecontroller when a Mode C transponder equippedaircraft on an IFR flight plan is below apredetermined minimum safe altitude. If requestedby the pilot, Low Altitude Alert System monitoringis also available to VFR Mode C transponderequipped aircraft.LOW APPROACH− An approach over an airport orrunway following an instrument approach or a VFRapproach including the go-around maneuver wherethe pilot intentionally does not make contact with therunway.(Refer to AIM.)LOW FREQUENCY− The frequency band between30 and 300 KHz.(Refer to AIM.)LPV− A type of approach with vertical guidance(APV) based on WAAS, published on RNAV (GPS)approach charts. This procedure takes advantage ofthe precise lateral guidance available from WAAS.The minima is published as a decision altitude (DA).PCG L−3