Bird or Hail Strikes on the Radome
Abnormal events such as bird strikes and hail strikes can occur at any time. When the aircraft is struck by birds or Foreign Object Debris (FOD), the correct inspection process must be followed, before the next flight, to determine if the aircraft is safe to fly.This article focuses on the effect that a bird or […]
Closing MEL Items: Why Sooner is Better
It is not always possible to repair a system failure before the next flight. The MEL permits the dispatch of an aircraft with inoperative equipment or functions for a limited period of time, and under specific conditions, while maintaining an acceptable level of safety. Current in-service data shows an increase in the number of requests […]
Wake Vortices
All aircraft generate wake vortices, also known as wake turbulence, which continue to be evident far behind the generating aircraft. Another aircraft crossing this wake may feel a sharp and brief turbulence which can be strong under some circumstances. Let’s review the specific characteristics of wake vortices’ and how pilots should react in case of […]
Is it a Loss of Braking?
The LOSS OF BRAKING procedure memory items have to be applied in the extremely remote case of a failure of the braking system. In-service experience shows that inappropriate application of the LOSS OF BRAKING procedure may contribute to a risk of runway excursion. This article recalls the conditions to apply the LOSS OF BRAKING procedure […]
Inappropriate V/S Target during Autoflight Mode Reversion
Two cases of inappropriate V/S target during an autoflight reversion to V/S mode after a go-around were recently reported to Airbus. In both cases, the inappropriate V/S target resulted in a pitch down command of the autopilot with high thrust. The flight guidance used the previously selected V/S value set during the preceding ILS glide […]
Look out for Ice Ridges on the Lower Nose Fuselage
With the start of the winter season in the northern hemisphere, it is a timely reminder to re-publish this article, initially published in 2018. Ice ridges on the lower nose fuselage can cause Computed Airspeed (CAS) values delivered by the ADRs to be lower than the actual airspeed which may lead to unreliable airspeed events. This […]
Lightning Strikes
Each in-service aircraft is struck by lightning at least once per year, on average. Even if the level of energy of lightning strikes is high, their effects on an aircraft are limited.This article explains the lightning phenomenon and why aircraft are prone to lightning strikes. It describes how aircraft are designed to limit the effects […]
Cockpit Control Confusion
Inadvertent use of the wrong cockpit control instead of the intended control is a potential situation that pilots may encounter on any aircraft type. This kind of error can occur with even the most experienced pilots and this article explores what factors can influence and lead to this type of occurrence. The resilience of the […]
Inadvertent Autopilot Engagement during Takeoff on A220 Aircraft
Several in-service events were reported to Airbus where the flight crew inadvertently selected the autopilot while attempting to engage the autothrottle during the takeoff roll. Inadvertent autopilot engagement may result in early rotation that can lead to a tail strike, inability to climb, runway overrun, or even loss of control. The purpose of this article […]
Thrust Reverser Selection is a Decision to Stop
The SOP for landing requests that the flight crew perform a full stop landing after thrust reversers selection. However, in-service flight data analysis revealed that the equivalent of one go-around per month is performed after selection of thrust reversers. This article describes an event where the flight crew performed a go-around after they had selected […]