Aeronautical Terms

14 CFR part 43

The Federal regulations governing Maintenance, Preventive Maintenance, Rebuilding, And Alteration

14 CFR Part 61

The Federal regulations governing Pilots, Flight Instructors, And Ground Instructors.

14 CFR Part 91

The Federal regulations governing General Operating And Flight Rules

Aircraft Hazard Area

Used by air traffic control to segregate air traffic from a launch vehicle, reentry vehicle, amateur rocket, jettisoned stages, hardware, or falling debris generated by failures associated with any of these activities. An AHA is designated via NOTAM as either a TFR or stationary altitude reservation (ALTRV). Unless otherwise specified, the vertical limits of an AHA are from the surface to unlimited.

Final Approach Runway Occupancy Signal (FAROS)

The Final Approach Runway Occupancy Signal (FAROS) is an automated safety system designed to notify pilots on approach to land that the runway is occupied or otherwise unsafe for landing. This pilot notification system is an FAA sponsored research and development effort that addresses the high priority safety hazards of runway incursions.

Geographic Position Markings

Geographic Position Markings are located at points along low visibility taxi routes designated in the airport's Surface Movement Guidance Control System (SMGCS) plan. They are used to identify the location of taxiing aircraft during low visibility operations. Low visibility operations are those that occur when the runway visible range (RVR) is below 1200 feet(360m). They are positioned to the left of the taxiway centreline in the direction of taxiing.

Groundspeed Measurement System

A measurement system for determining the groundspeed of an aircraft during final approach and landing, by measuring at the aircraft the Doppler shift of a radio signal, and/or its modulation components, transmitted by a fixed ground station.

Lean of Peak

A mixture setting where the mixture was leaned from the full-rich fuel flow position to lean of peak exhaust gas temperature (EGT).

Wing Tank Liner

A liner for aircraft fuel tanks which limits the amount of fuel that can be spilled in the event of a crash.