Air India expands pilot screening after A320 altitude drop

Air India will drug-test more than 5,000 pilots after a Phuket-Delhi flight dropped 300 feet and injured 24 people, an internal email said.

The directive takes effect August 13 and applies across Air India and Air India Express, according to the email sent to pilots. The carrier said the screening will cover substances and medications not permitted under current aviation rules.

Aug. 13 testing order

The group described the screening as a mandatory, one-time exercise for its pilot workforce. The move follows an alleged positive drug finding involving the captain of the August 4 Phuket-Delhi service, according to the source material.

Air India did not specify in the email what disciplinary steps would follow a failed test. The company also did not provide further comment on the universal screening plan in response to a request described in the source material.

A320 drop and toxicology checks

The testing order follows an incident in which an Air India Airbus A320 lost 300 feet of altitude during cruise on August 4. The event injured 24 passengers and cabin crew members, placing the flight under post-incident safety procedures.

Both pilots underwent mandatory toxicology checks after landing in Delhi under Directorate General of Civil Aviation protocols. The rapid test for the pilot in command initially returned a "non-negative" result, while a later laboratory report was described as confirming marijuana in the captain's urine sample.

Both pilots were removed from duty pending an inquiry by India's Aircraft Accident Investigation Bureau. The investigation is being assisted by the French air accident investigation regulator and Airbus SE, according to the account provided.

License penalties shape response

Under Directorate General of Civil Aviation rules, an employee who tests positive for a psychoactive substance for the first time is referred to a rehabilitation program. The person must test negative before returning to safety-sensitive work.

A second confirmed positive result leads to a three-year license suspension, while a third confirmation results in permanent cancellation of the permit. Those penalties make the testing outcome material for individual pilots as well as for crew planning at the airline.

The scope is unusual for Air India, whose ownership includes a more than 25% stake held by Singapore Airlines. By extending screening across both its full-service and low-cost fleets, the group is moving beyond post-incident checks toward a wider compliance review.

If the tests produce few positive results, the operational effect may be limited to individual roster changes and follow-up medical procedures. If more cases emerge, Air India could face tighter crew availability, more retesting, and additional scheduling pressure across domestic and international routes.

If regulators treat the Air India order as a template, other Indian carriers may face higher compliance costs and closer scrutiny of safety-sensitive staff. The global macro effect would be indirect: passenger confidence, insurance pricing, and airline labor availability are the channels through which such controls would matter.

If investigators separate the toxicology finding from the A320 altitude drop, the industry's focus could shift back to aircraft systems, crew procedures, training, or maintenance. The main open questions are the final status of the laboratory finding, the cause of the 300-foot descent, and whether the August 13 screening leads to license action.