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时间:2011-04-19 22:49来源:蓝天飞行翻译 作者:航空
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                                                                                       Getting to Grips with                                            Approach-and-Landing Accidents Reduction

Continuing the approach below the MDA(H) is permitted only if at least one of the visual references is distinctly visible and identifiable by the PF (refer to
Briefing Note 7.3 -Acquisition of Visual References).
The landing following a non-precision approach is a visual and manual landing.
Standard Operating Procedures
The importance of task sharing, standard calls and altitude callouts or parameter excessive-deviation callouts must be emphasized.
Refer also to the following Briefing Notes:
.  
1.1 – Operating Philosophy - SOPs,

.  
1.4 - Standard Calls.


The following overview outlines the actions and standard calls required by SOPs and illustrates the typical phases of the approach and the sequence of decisions involved in a non-precision approach:
Descent / Approach Preparation:
.  
Anticipate and confirm the runway in use and the type of approach to be conducted. 

.  
Define the approach strategy for lateral guidance:


.  Use of selected heading mode and navaid raw data;
or,
.  Use of FMS lateral navigation (NAV mode) with monitoring of raw data, if :
°. the approach is defined in the FMS navigation database; and,
°. the FMS navigation accuracy meets the criteria for approach;
(typically, better than 2 Nm in terminal area and better than 1 Nm for approach).

Flying Constant-Angle Non-Precision Approaches
Page 4

.  Define the approach strategy for vertical guidance:
.  Use of altitude hold and vertical speed mode;
or,
.  Use of FMS vertical navigation mode, down to the FAF (or beyond, as applicable, in accordance with the FCOM);

.  
Insert the desired runway, type of approach and STAR (from the database) in the FMS flight plan;

.  
Enter the descent and surface winds on the appropriate FMS page, as applicable;

.  
Enter the landing configuration and wind correction on the appropriate FMS page, as applicable;

.  
If the use of the vertical navigation mode is authorized after the FAF, enter the MDA(H) on the appropriate FMS page;

.  
Set-up navaids (identify, as required); and,

.  
Plan the descent for reaching the IAF at the prescribed altitude and planned airspeed.


Approach Briefing:
For a detailed overview of the approach briefing, refer to the Briefing Note 1.6 – Approach and Go-around briefing.
.  
Review terrain features, obstacles position and other obstacle clearance awareness items;

.  
Confirm the arrival minimum safe altitude (MSA);

.  
Review the approach procedure (fixes, altitude constraints and speed restrictions, required navaids, etc);

.  
Review the approach vertical profile (step-down altitudes) and MDA (H);

.  
Set/check the MDA (H) on the baro altimeter bug;

.  
Review the expected visual references (approach and runway lighting);
 
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