India, June 24 -- Five passengers and two cabin crew reported nausea and dizziness on a London Heathrow to Mumbai flight on Monday even as the aviation regulator started an annual audit of the airline amid increased scrutiny following the fatal crash of AI 171 in Ahmedabad on 12 June.

Air India confirmed the incident on flight AI 130 from London Heathrow to Mumbai but did not specify the cause. An airline official familiar with the matter, on condition of anonymity, said the passengers and crew fell sick due to slow decompression, or a gradual decrease in cabin pressure. "A few of them were taken to the medical room (at Mumbai's Terminal 2 ) on wheelchairs," an airport official, also on condition of anonymity, added.

"... five passenger...