Kochi, May 12: A 72-year-old woman, travelling by the Jet Airways flight from Chennai, died of cardiac arrest soon after the flight took off today. The passenger, Vimala Nair, hailing from Thrissur, was afflicted with Parkinson's Disease and chronic hypertension. She developed severe back pain immediately after the flight took off from Chennai, airport sources here said. A doctor who as travelling in the flight immediately attended on her, but her life could not be saved. On reaching Kochi, the body was examined by airport medical officer who certified that it was a natural death and that she had died of cardiac arrest. The body was then released to the relatives. The deceased was accompanied by her daughter in the flight. Bureau Report