Troubleshooting Airframe Vibrations
As moveable structural components such as control surfaces and landing gear doors age, wear of hinges and actuators can sometimes lead to airframe vibrations. These vibrations can cause noise and physical discomfort in the passenger cabin.To prevent further deterioration of components, the cause of vibration should be quickly identified and removed. For this, maintenance personnel require Flight Crew to make observations of the vibration using a Vibration Reporting Sheet (VRS).A clear understanding of how to complete the VRS is important before starting the observations. Some parts of the VRS require manual control inputs with Autopilot OFF and therefore cannot be performed in RVSM airspace.
Preparing Flight Crews to Face Unexpected Events
During an approach at night-time into Glasgow Airport, the crew of an easyJet A319 experienced a strong cross-wind and turbulent conditions, which created a WINDSHEAR alert and led them to perform a go-around.As they did this, PFD information including Flight Modes Annunciator, Flight Director bars, and characteristic speeds all disappeared from both PFDs. In addition, the rudder travel limiter function became unavailable, and the auto-thrust disconnected. The crew was facing a very challenging situation, and needed to use their training in back-to-basics flying and efficient Crew Resource Management.
Hard Landing, a Case Study for Crews and Maintenance Personnel
In this article, Airbus would like to take you through a case study and use it to learn some lessons and share our safety first culture. The article is split into three distinct parts:The first will describe the eventThe second, targeted at flight crews, will discuss and develop the stabilization criteria and present a prevention strategy against unstable approaches. It will also insist on the need to use the appropriate level of automation at all times.The third part, targeted at maintenance personnel, will illustrate the need to always use the Aircraft Maintenance Manual (AMM) as the source document for maintenance operations.