One of the Jet Airways flyers, who suffered nose and ear bleeding after the crew "forgot" to turn on a switch that controls cabin air pressure, has been admitted to a hospital here for check-up, an official said. A middle-aged man was brought to Dr Balabhai Nanavati Hospital in suburban Vile Parle by Jet Airways officials. "He has been admitted for audiometry test and the hospital will issue a health statement after some time," a spokesperson of the hospital said. The Mumbai-Jaipur flight was carrying 166 passengers and five crew members on board. "During climb, the crew forgot to select bleed switch due to which cabin pressurisation could not be maintained. As a result, oxygen masks got deployed," the official at aviation regulator, Directorate General of Civil Aviation (DGCA), said. The Boeing 737 aircraft returned to Mumbai due to "loss of cabin pressure" and the pilots have been taken off duty pending investigation, a Jet Airways spokesperson said. Citing initial information, the official said few passengers have nose bleeding. Oxygen masks came out but no one gave us warning or instructions. They announced after 15 minutes that we're landing but didn't even tell where. It was very scary: Passengers of Jet Airways Mumbai-Jaipur flight (that suffered cabin pressure loss today) after landing in Jaipur pic.twitter.com\/R33UZoT5oe— ANI (@ANI) September 20, 2018 Most of them will have mild conductive deafness for some period of time. Till then they've been advised not to fly again: Dr Rajendra Patenkar,Chief Operating Officer, Nanavati Hospital on passengers of the Jet Airways Mumbai-Jaipur flight which suffered cabin pressure loss today pic.twitter.com\/lrJtBmmVUR— ANI (@ANI) September 20, 2018 5 passengers have come here till now. At this point of time they needn't be admitted, consultants are evaluating them. Some of them had nose&ear bleeding. It's called Barotrauma: Dr. Rajendra Patenkar,Nanavati Hospital on passengers of the Jet Airways Mumbai-Jaipur flight #Mumbai pic.twitter.com\/00wwi3YKUM— ANI (@ANI) September 20, 2018 A Jaipur-bound Jet Airways flight was turned back to Mumbai after several passengers suffered ear pain and nose-bleeds, during take-off because of loss in cabin air pressureRead @ANI Story | pic.twitter.com\/DEVsYX9YK7— ANI Digital (@ani_digital) September 20, 2018 "Out of 166 passengers on board, 30 passengers are affected. some have nose bleeding, a few have ear bleeding and some are complaining of headache," he added. The official said all the affected passengers are being attended to by doctors at the airport.