TRAFFIC INFORMATION SERVICE-Broadcast (TIS-B). The broadcast of ATC derived traf.c information to ADS-B equipped (1090ES or UAT) aircraft. The source of this traf.c information is derived from ground-based air traf.c surveillance sensors, typi-cally from radar targets. TIS-B service will be available throughout the NAS where there are both adequate surveillance coverage (radar) and adequate broadcast coverage from ADS-B ground stations. Loss of TIS-B will occur when an aircraft enters an area not covered by the GBT network. If this occurs in an area with adequate surveillance coverage (radar), nearby aircraft that remain within the adequate broadcast coverage (ADS-B) area will view the .rst aircraft. TIS-B may continue when an aircraft enters an area with inadequate surveillance coverage (radar); nearby air-craft that remain within the adequate broadcast coverage (ADS-B) area will not view the .rst aircraft.
Terms Modi.ed
AUTOMATIC FLIGHT INFORMATION SERVICE (AFIS)— ALASKA FSS’s ONLY. The continuous broadcast of recorded non-control information at airports in Alaska where a FSS provides local airport advisory service. The AFIS broadcast automates the repetitive transmission of essential but routine information such as weather, wind, altimeter, favored runway, breaking action, airport NOTAMs, and other applicable information. The information is continuously broadcast over a discrete VHF radio frequency (usu-ally the ASOS/AWSS/AWOS frequency.)
BRAKING ACTION ADVISORIES. When tower controllers have received runway braking action reports which include the terms “fair,” “poor,” or “nil,” or whenever weather conditions are condu-cive to deteriorating or rapidly changing runway braking condi-tions, the tower will include on the ATIS broadcast the statement, “Braking action advisories are in effect” on the ATIS broadcast. During the time braking action advisories are in effect, ATC will issue the latest braking action report for the runway in use to each arriving and departing aircraft. Pilots should be prepared for dete-riorating braking conditions and should request current runway condition information if not volunteered by controllers. Pilots should also be prepared to provide a descriptive runway condition report to controllers after landing.
ILS CATEGORIES.
1.
Category I. An ILS approach procedure which provides for approach to a height above touchdown of not less than 200 feet and with runway visual range of not less than 1,800 feet.
2.
Special Authorization Category I. An ILS approach procedure which provides for approach to a height above touchdown of not less than 150 feet and with runway visual range of not less than 1,400 feet, HUD to DH.
3.
Category II. An ILS approach procedure which provides for approach to a height above touchdown of not less than 100 feet and with runway visual range of not less than 1,200 feet (with autoland or HUD to touchdown and noted on authorization, RVR 1,000 feet).
4.
Special Authorization Category II with Reduced Lighting. An ILS approach procedure which provides for approach to a height above touchdown of not less than 100 feet and with runway visual range of not less than 1,200 feet with autoland or HUD to touch-down and noted on authorization (no touchdown zone and center-line lighting are required).
5.
Category III:
a.
IIIA. An ILS approach procedure which provides for approach without a decision height minimum and with runway visual range of not less than 700 feet.
b.
IIIB. An ILS approach procedure which provides for approach without a decision height minimum and with runway visual range of not less than 150 feet.
c.
IIIC. An ILS approach procedure which provides for approach without a decision height minimum and without runway visual range minimum.
LOCAL AIRPORT ADVISORY (LAA). A service provided by facili-ties, which are located on the landing airport, have a discrete ground-to-air communication frequency or the tower frequency when the tower is closed, automated weather reporting with voice broadcasting, and a continuous ASOS/AWSS/AWOS data display, other continuous direct reading instruments, or manual observations available to the specialist. (See AIRPORT ADVISORY AREA.)
ONE-MINUTE WEATHER. The most recent one minute updated weather broadcast received by a pilot from an uncontrolled airport ASOS/AWSS/AWOS.
REMOTE AIRPORT ADVISORY (RAA). A remote service which may be provided by facilities, which are not located on the landing airport, but have a discrete ground-to-air communication fre-quency or tower frequency when the tower is closed, automated weather reporting with voice available to the pilot at the landing airport, and a continuous ASOS/AWSS/AWOS data display, other direct reading instruments, or manual observation is available to the AFSS specialist.
SAFETY LOGIC SYSTEM ALERTS.
a.
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本文链接地址：ASA’s FAR/AIM and Flight Crew 2010 Update(86)
