The BRICS TimesA Major technical flaw has been discovered in Airbus A320 aircraft, causing them to be grounded for crucial software and hardware upgrades. The malfunction occurred during the switching of the ELAC flight control computer.
Airbus A320 family aircraft worldwide are suddenly being grounded for major software and hardware upgrades. A severe technical flaw is the reason behind this, directly impacting the safety of these planes. A recent incident involving an Airbus A320 flight alarmed the entire aviation sector.
What Happened to the Airbus A320? How Was the Threat Revealed?
The problem emerged on a private airline’s A320 flight from Cancún to New York. The aircraft suddenly pitched downwards while flying at thousands of feet. The pilot had not given any such command. However, a sharp jolt hit the cabin, and passengers were thrown from their seats. Several people were injured, and the flight was diverted to Tampa in an emergency. The investigation revealed the fault happened during the switching of the ELAC Flight Control Computer. This process resulted in the computer reading incorrect pitch data.
EASA issued an Emergency Airworthiness Directive on November 28. It mandates the immediate removal of older ELAC computers (Model B L104). These must be replaced with the new, safer Model (B L103+). Aircraft with the old system will not be permitted to fly. Limited ‘ferry flights’ will be allowed only if absolutely necessary.
Significant Impact Across India
This issue has a major impact in India as well. The country is the world’s largest operator of the A320. Approximately 200 IndiGo and 100–125 Air India aircraft are currently grounded or operating with limitations. This is due to the upgrade and inspection process. Air India has warned passengers about potential flight delays. They also mentioned possible impacts on the flight schedule.
What Did the Airbus and EASA Joint Investigation Find?
The joint investigation by Airbus and EASA uncovered the root cause. Increased solar radiation at high altitudes caused ‘bit-flip’ or data corruption in the ELAC computer’s chip. This led the computer to read incorrect signals. Consequently, the aircraft pitched downwards, even while in autopilot mode.
Airbus A320 is Among the World’s Safest Aircraft
The Airbus A320 is considered one of the world’s safest aircraft. It features an advanced fly-by-wire system. Nevertheless, this incident exposed a vulnerability in its critical ELAC computer component. Globally, around 6,000 aircraft are undergoing this upgrade process. New A320neo models only require a 30-minute software update. However, older models may need 2–3 days for both hardware and software replacement.
