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Definition A level bust is defined by EUROCONTROL as: Any unauthorised vertical deviation of more than 300 feet from an ATC flight clearance. Description A level bust occurs when an aircraft fails to fly at the level to which it has been cleared, regardless of whether actual loss of separation from other aircraft or the ground results. Level busts are also known as Altitude Deviations. For further information read the lead article about Level Bust.

Description Airworthiness may be defined as the fitness of an aircraft for flight in all the environments and circumstances for which it has been designed and to which it may therefore be exposed. An Airworthy aeroplane is one which is fit to fly. For further information read the entry article about Airworthiness.

Description Ground Operations involves all aspects of aircraft handling at the airport, as well as aircraft movement around the aerodrome except on active runways. The safety challenges of ground operations are partly associated directly with those operations; for example, ensuring that aircraft are not involved in collisions and that the jet efflux from large aircraft does not endanger small ones. Even more important, ground operations are about preparing aircraft for departure in such a way that the subsequent flight will be safe; for example, correct loading of cargo and baggage, sufficient and verified fuel of adequate quantity and quality and the correct use of ground deicing and anti-icing facilities, where appropriate. For further, general information about the safety challenges associated with ground operaitons read the entry article Ground Operations.

Description The effect of fire, smoke or fumes on an aircraft, its passengers and crew can range from inconsequential to catastrophic depending upon the type and the severity of the event, crew actions and the degree of their success, and, in the event of an uncontrollable in-flight fire, the time lapse between discovery of the fire and an on or off airfield landing. A general overview of the topic is given in the article "Fire, Smoke and Fumes". Within this risk category, the hazards associated with fire, smoke and fumes are discussed in articles grouped under the following sub-categories: Operational Fires, Post Crash Fires, Combustion Related Smoke, Non Combustion Related Fumes and Fire Protection. To select a sub-category use the filter in the right data block. Because of their nature, some articles may be listed in more than one sub-category.

Description Controlled Flight into Terrain (CFIT) occurs when an airworthy aircraft under the complete control of the pilot is inadvertently flown into terrain, water, or an obstacle. The pilots are generally unaware of the danger until it is too late. Most CFIT accidents occur in the approach and landing phase of flight and are often associated with non-precision approaches. Many CFIT accidents occur because of loss of situational awareness, particularly in the vertical plane, and many crash sites are on the centreline of an approach to an airfield. Lack of familiarity with the approach or misreading of the approach plate are common causal factors, particularly where the approach features steps down in altitude from the initial approach fix to the final approach fix. For further information read the lead article about Controlled Flight Into Terrain.

On this page you will find articles on the subject: Wildlife Strike. Description A wildlife strike is a collision between an animal (most often a bird, but sometimes another species) and a man made vehicle, especially aircraft. Wildlife strikes constitute a serious hazard to aircraft safety and have caused a number of fatal accidents. For further information read the lead article about Wildlife Strike.

Description Airspace infringement occurs when an aircraft penetrates an area into which special clearance is required without having such clearance. For further information read the lead article about Airspace Infringement.

Description "The passage of voice and/or data between an aircraft and a ground station such as air traffic control or aircraft operating agency." ICAO Annex 10 – Aeronautical Communications defines air ground communication as “Two-way communication between aircraft and stations or locations on the surface of the earth.” For further information read the lead article about Air Ground Communication.

SKYbrary supports improved safety risk awareness and mitigation by offering insight into the main safety hazards, such as loss of control, CFIT, loss of separation and mid-air collision, runway excursion, runway collision, in-flight fire, airspace infringement, air-ground communication failures, drones and ground collision. SKYbrary articles describe the aviation safety hazards in terms of causal and contributory factors, effects on safety aircraft operations and humans, safety barriers and risk mitigation solutions. Primary focus is the operational safety improvement in the domains of air traffic management, flight operations and human performance. However, safety management, safety promotion and sharing of safety knowledge, safety improvement tools and safety regulation have been addressed, too.

SKYbrary supports improved safety risk awareness and mitigation by offering insight into the main safety hazards, such as loss of control, CFIT, loss of separation and mid-air collision, runway excursion, runway collision, in-flight fire, airspace infringement, air-ground communication failures, drones and ground collision. SKYbrary articles describe the aviation safety hazards in terms of causal and contributory factors, effects on safety aircraft operations and humans, safety barriers and risk mitigation solutions. Primary focus is the operational safety improvement in the domains of air traffic management, flight operations and human performance. However, safety management, safety promotion and sharing of safety knowledge, safety improvement tools and safety regulation have been addressed, too.

Before you sell, give away, or trade in your iPad, delete your content and settings.

If you believe you’re being targeted by a sophisticated cyberattack, Lockdown Mode helps protect your iPad.

On iPad, use iCloud Private Relay to hide your IP address and web browsing activity from network providers and websites.

iCloud allows you to bypass many sign-in challenges by automatically and privately verifying your iPad and account.

On iPad, use iCloud Keychain to keep website passkeys, passwords, credit card information, and other account information up to date across your other devices.

On iPad, use AirDrop to securely share passkeys and passwords with someone’s iPhone, iPad, or Mac.

On iPad, use passkeys to securely and easily sign in without passwords to websites and apps.

On iPad, see live captions so you can more easily follow the audio in any app, such as FaceTime or Podcasts, and in live conversations around you.

On iPad, Hover Text can help you read input fields, menu items, button labels, and other text.

After you connect your iPad and computer using the Finder or iTunes, you can sync many types of data and transfer many types of files.

Share files between your iPad and computer with a cloud storage provider like Box or Dropbox.

Use a file server to share files between the Files app on iPad and your computer.

Use an external device, such as a USB drive or SD card, to transfer files between your iPad and computer.

On iPad and your computer, use iCloud to keep your files up to date on both devices.

Transfer files wirelessly between your iPad and computer with email, messages, or AirDrop.

There are multiple ways to make files on your iPad appear on your Mac or Windows PC, and vice versa.