Air India Express — flight safety issues( servicing)

Address:

New Delhi, Delhi

Dear sir one of my colleague was travelling in Flt No - AI 9602, Date of Tavel - 03 Apr 2015, Route - Port Blair to Delhi. he was sitting next to emergency exit and was feeling cold. then he saw frosting occuring on chair in front. the air was entering thru some gap. means door was not airtight or in our lingo... pressurisation seal was not intact. i would like to mention that i am a pilot myself with airforce so i am aghast how did this pass ur checks or if its normal then plz let me know? i am waiting for a satisfactory reply.