時間：2011-04-18 00:50來源：藍天飛行翻譯 作者：航空 點擊：次
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NOTE. Code 7500 will never be assigned by ATC without prior notification from the pilot that the aircraft is being subjected to unlawful interference. The pilot should refuse the assignment of Code 7500 in any other situation and inform the controller accordingly. Code 7500 will trigger the special emergency indicator in all radar ATC facilities. c.Air traffic controllers will acknowledge and confirm receipt of transponder Code 7500 by asking the pilot to verify it. If the aircraft is not being subjected to unlawful interference, the pilot should respond to the query by broadcasting in the clear that the aircraft is not being subjected to unlawful interference. Upon receipt of this information, the controller will request the pilot to verify the code selection depicted in the code selector windows in the transponder control panel and change the code to the appropriate setting. If the pilot replies in the affirmative or does not reply, the controller will not ask further questions but will flight follow, respond to pilot requests and notify appropriate authorities. d.If it is possible to do so without jeopardizing the safety of the flight, the pilot of a hijacked passenger aircraft, after departing from the cleared routing over which the aircraft was operating, will attempt to do one or more of the following things, insofar as circumstances may permit: 1.Maintain a true airspeed of no more than 400 knots, and preferably an altitude of between 10,000 and 25,000 feet. 2.Fly a course toward the destination which the hijacker has announced. e. If these procedures result in either radio contact or air intercept, the pilot will attempt to comply with any instructions received which may direct the aircraft to an appropriate landing field or alter the aircraft’s flight path off its current course, away from protected airspace. 6.3.5. Fuel Dumping a. Should it become necessary to dump fuel, the pilot should immediately advise ATC. Upon receipt of information that an aircraft will dump fuel, ATC will broadcast or cause to be broadcast immediately and every 3 minutes thereafter the following on appropriate ATC and FSS radio frequencies: EXAMPLE. Attention all aircraft . fuel dumping in progress over . (location) at (altitude) by (type aircraft) (flight direction). b. Upon receipt of such a broadcast, pilots of aircraft affected, which are not on IFR flight plans or special VFR clearances, should clear the area specified in the advisory. Aircraft on IFR flight plans or special VFR clearances will be provided specific separation by ATC. At the termination of the fuel dumping operation, pilots should advise ATC. Upon receipt of such information, ATC will issue, on the appropriate frequencies, the following: EXAMPLE. ATTENTION ALL AIRCRAFT . FUEL DUMPING BY . (type aircraft) . TERMINATED. Distress and Urgency Procedures 6.3.7 Section 4. Two-way Radio Communications Failure 6.4.1. Two-way Radio Communications Failure a.It is virtually impossible to provide regulations and procedures applicable to all possible situations associated with two-way radio communications failure. During two-way radio communications failure, when confronted by a situation not covered in the regulation, pilots are expected to exercise good judgment in whatever action they elect to take. Should the situation so dictate they should not be reluctant to use the emergency action contained in 14 CFR Section 91.3(b). b.Whether two-way communications failure constitutes an emergency depends on the circum-stances, and in any event, it is a determination made by the pilot. 14 CFR Section 91.3(b) authorizes a pilot to deviate from any rule in Subparts A and B to the extent required to meet an emergency. c.In the event of two-way radio communications failure, ATC service will be provided on the basis that the pilot is operating in accordance with 14 CFR Section 91.185. A pilot experiencing two-way communications failure should (unless emergency authority is exercised) comply with 14 CFR Section 91.185 quoted below: 1.General. Unless otherwise authorized by ATC, each pilot who has two-way radio communica-tions failure when operating under IFR shall comply with the rules of this section. 2.VFR conditions. If the failure occurs in VFR conditions, or if VFR conditions are encoun-tered after the failure, each pilot shall continue the flight under VFR and land as soon as practicable. NOTE. This procedure also applies when two-way radio failure occurs while operating in Class A airspace. The primary objective of this provision in 14 CFR Section 91.185 is to preclude extended IFR operation by these aircraft within the ATC system. Pilots should recognize that operation under these conditions may unnecessarily as well as adversely affect other users of the airspace, since ATC may be required to reroute or delay other users in order to protect the failure aircraft. However, it is not intended that the requirement to “land as soon as practicable” be construed to mean “as soon as possible.” Pilots retain the prerogative of exercising their best judgment and are not required to land at an unauthorized airport, at an airport unsuitable for the type of aircraft flown, or to land only minutes short of their intended destination. 3. IFR conditions. If the failure occurs in IFR conditions, or if subparagraph 2 above cannot be complied with, each pilot shall continue the flight according to the following: (a)Route. (1)By the route assigned in the last ATC clearance received; (2)If being radar vectored, by the direct route from the point of radio failure to the fix, route, or airway specified in the vector clearance; (3)In the absence of an assigned route, by the route that ATC has advised may be expected in a further clearance; or |
