4.11.4 Transmission of ADS-C reports The U.S. has not yet published ATS procedures for the use of Automatic Dependent Surveillance- Contract (ADS-C).
4.12.2 Contents of The U.S. does not normally use the term “air-report.” Pilot weather reports (PIREPs),
routine air-reports position, and operational reports are used. PIREPs include reports of strong frontal activity,
4.12.3 Contents of squall lines, thunderstorms, light to severe icing, wind shear and turbulence (including clear
special air-reports air turbulence) of moderate or greater intensity, volcanic eruptions and volcanic ash clouds, and other conditions pertinent to flight safety. They may include information on ceilings, visibility, thunderstorms, icing of light degree or greater, wind shear and its effect on airspeed, or volcanic ash clouds, but do not usually include air temperature.
4.13.4 Flight Progress Strips shall be retained for at least 15 days. (7110.3 3-4-4b)
4.15 DATA LINK COMMUNICATION S INITIATION PROCEDURES The U.S. has not yet published ATS procedures for the use of Datalink
CHAPTER 5 SEPARATION METHODS AND MINIMA
5.2.1 General In U.S. airspace, only conflict resolution (not separation) is provided between IFR and VFR operations. Separation is provided between IFR and Special VFR (SVFR) aircraft only within the lateral boundaries of Class B, C, D, or E control zones (the U.S. term is surface areas) below 10,000 feet MSL.
5.2.1 General In U.S. Class A and B airspace, separation is provided for all aircraft. In U.S. Class C airspace, separation is provided between IFR and SVFR aircraft; conflict resolution is provided between IFR and VFR operations.
5.3.1 Vertical separation application 5.3.4 Vertical separation during climb or descent U.S. rules allow assignment of altitude to second aircraft after first aircraft has been issued climb/descent and is observed or reports leaving that altitude. 7110.65 6-6-1. APPLICATION 6-6-2. EXCEPTIONS
5.4.2.2.1c/ d The U.S. uses 22 kt instead of 20 kt and 44 kt instead of 40 kt.
5.4.2.1.5 The U.S. uses the term “course” instead of “track.” “Reciprocal” courses are sometimes referred to as “opposite” courses. The wording of the definitions for U.S. same, crossing, or opposite/reciprocal courses differs from the ICAO worded definitions, but the intent appears to be the same.
5.4.2.6.4.3.3 U. S. 3. When an ADS-C periodic or waypoint change event report is overdue by 3 minutes,
Conflict is resolved the controller shall take action to obtain an ADS-C report.
within a further 7 1/2 4. If no report is received within 6 minutes of the time the original report was due, the
minutes. controller shall take action to apply another form of separation. 7110.65 8-9-3. LONGITUDINAL SEPARATION
CHAPTER 6 SEPARATION IN THE VICINITY OF AERODROMES
6.3.2.5 COMMUNICATION FAILURE 8.8.3.2 COMPLETE AIRCRAFT COMMUNICATION FAILURE 15.3 AIR-GROUND COMMUNICATION S FAILURE In the U.S., if the communications failure occurs in IFR conditions, or if VFR cannot be complied with, each pilot shall continue the flight according to the following requirements: Route a) By the route assigned in the last ATC clearance received; b) If being radar vectored, by the direct route from the point of failure to the fix, route, or airway specified in the vector clearance; c) In the absence of an assigned route, by the route that ATC has advised may be expected in a further clearance; or d) In the absence of an assigned route or a route that ATC has advised may be expected in a further clearance, by the route filed in the flight plan. Altitude - At the highest of the following altitudes or flight levels for the route segment being flown: a) The altitude or flight level assigned in the last ATC clearance received; b) The minimum altitude as prescribed in 14 CFR Part 91 (Section 91.121(c)) for IFR operations; or c) The altitude or flight level ATC has advised may be expected in a further clearance.
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