New Delhi: The British Airways aircraft was grounded in Chennai last week following lightning strike. According to sources, the London-Chennai flight was hit by a lightning soon after take off from London. As the crew did not notice any malfunction, they decided to continue the almost 10-hour flight to Chennai. The aircraft reached its destination and landed there safely. But after landing when it was inspected, the plane was found to have suffered significant damage,” said a source. Following the grounding of the plane, the return flight was cancelled.