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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.
The EASA adopted the directive, and others are expected to follow. [102] The engines involved in the July and September incidents had 154 and 230 cycles, respectively, while the October failure occurred to an engine with 1,654 cycles since new but within 300 cycles after an electronic engine-control update. Pratt & Whitney recommends ...
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".
Aircraft continuous airworthiness monitoring ACARS Aircraft Communications Addressing and Reporting System: ACAS Airborne collision avoidance system: ACC Area control centre [1] ACC Active clearance control: Turbine engine system ACC Accessory In gas turbine engine ACE Actuator control electronics ACFT Aircraft [3] ACI Airports Council ...
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 ...
Emergency Airworthiness Directive 2022-0267-E was issued by EASA on 27 December 2022. [2] This EAD was reviewed by EASA following submission of data that showed that all the wing spars exceeded their design specification. The Airworthiness Directive was finally cancelled on 12 June 2024. [3]