To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed.
4.2
Flight Operations Briefing Notes
Approach Techniques
Flying Stabilized Approaches
I Introduction Rushed and unstabilized approaches are the largest contributory factor in CFIT and other approach-and-landing accidents.
Rushed approaches result in insufficient time for the flight crew to correctly:
. Plan;
. Prepare; and,
. Execute a safe approach.
This Flight Operations Briefing Note provides an overview and discussion of:
. Criteria defining a stabilized approach; and,
. Factors involved in rushed and unstabilized approaches.
Note: Flying stabilized approaches complying with the stabilization criteria and approach gates defined hereafter, does not preclude flying a Delayed Flaps Approach (also called a Decelerated Approach) as dictated by ATC requirements.
II Statistical Data (Source: Flight Safety Foundation Flight Safety Digest Volume 17 & 18 – November 1998 / February 1999).
Continuing an unstabilized approach is a causal factor in 40 % of all approach-and-landing accidents.
In 75% of the off-runway touchdown, tail strike or runway excursion/overrun accidents, the major cause was an unstable approach.
Table 1 shows the factors involved in rushed and unstabilized approaches.
Factor
% of Events
High and/or fast approach or Low and/or slow approach
66 %
Flight-handling difficulties : - Demanding ATC clearances - Adverse wind conditions
45 %
Table 1
Factors Involved in Unstabilized Approaches
III Stabilization Heights The following minimum stabilization heights are recommended to achieve timely stabilized approaches:
Meteorological Conditions
Height above Airfield Elevation
IMC
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：Approach Techniques Flying Stabilized Approaches
