Exceeding of flight parameters
What this relates to:
Pilots or external influences such as weather-induced turbulence or wind shear can cause the flight parameters to be exceeded. This includes excessively rapid changes in airspeed, direction or attitude, and exceeding the technical limits of aircraft systems.
Example:
On approach to an airport, a passenger aircraft encounters severe turbulence. The pilot corrects for this using the elevator inputs. This is not sufficient. The alarm for excessive banking of the aircraft sounds. As a consequence, the pilot decides to abort the approach. The second approach is successful and the aircraft lands safely.
Remarks on the 2024 figures:
The number of incidents per 10,000 aircraft movements has again decreased slightly over the last four years. 95% of reports were received from commercial air transport flight crews, who report flight parameter exceedances.
Of the cases in which parameters were exceeded, 58% occurred during the approach or landing phase, 35% en route and 7% during the take-off phase. Severe weather conditions such as turbulence or wind shears were the main causal factor for these deviations. Other factors were induced by the flight crews during configuration of flaps/slats right at the speed limits without any safety effect. Exceeding of parameters includes overspeed or underspeed (79%), exceeding the banking angle (16%) and small aircraft pitch deviations (5%) during landing.
