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An emergency airworthiness directive (EAD) is an airworthiness directive issued when unsafe conditions require immediate action by an aircraft owner or operator. An EAD is published by a responsible authority such as the FOCA, EASA or FAA related to airworthiness and maintenance of aircraft and aircraft parts. It contains measures which must be ...
An airworthiness directive (commonly abbreviated as AD) is a notification to owners and operators of certified aircraft that a known safety deficiency with a particular model of aircraft, engine, avionics or other system exists and must be corrected.
EASA is responsible for new type certificates and other design-related airworthiness approvals for aircraft, engines, propellers and parts. EASA works with the EU member states' civil aviation authorities (CAAs) but has taken over many of their functions in the interest of aviation standardisation across the EU and in the non-EU member Turkey. [12]
One airworthiness regulation is found in ICAO international standard of Annex 8 to Chicago Convention on International Civil Aviation which defines "airworthy" - in respect of an aircraft, engine, propeller or part there of - as "The status of an aircraft, engine, propeller or part when it conforms to its approved design and is in a condition for safe operation".
Minimum equipment lists are issued to specific aircraft and specific operators. In order to use a minimum equipment list, that specific company must receive a letter of authorization from the civil aviation authorities of the countries where the aircraft will operate.
The engine manufacturer estimated the new directive affected 352 engines in the US and 681 engines worldwide. [ 24 ] On April 23, 2018, Southwest Airlines announced that it was voluntarily going beyond the FAA EAD requirement and performing ultrasonic inspections on all CFM engines in its fleet, including two each on around 700 Boeing 737-700 ...
On 2 June 2016, following the crash of an H225 in Norway which revealed a potential safety issue with the main rotor assembly, the EASA issued an emergency airworthiness directive that grounded the H225 fleet; [39] by July 2016, 80 per cent of the worldwide fleet had been grounded as a result, while some operators such as the French military ...
An Airbus A321 from Iberia having its CFM56 changed. Aircraft maintenance is the performance of tasks required to ensure the continuing airworthiness of an aircraft or aircraft part, including overhaul, inspection, replacement, defect rectification, and the embodiment of modifications, compliance with airworthiness directives and repair.