Nearly three-fourths of the Air India Group's 267 planes that were analysed for repetitive defects have been identified as having recurring defects, the data presented in the Lok Sabha on Thursday showed. Of the 166 Air India aircraft analysed, 137 planes were identified for repetitive defects, while 54 Air India Express aircraft were identified for repetitive defects of the 101 aircraft analysed, the data showed. Taken together, a total of 267 aircraft of Air India Group (Air India and Air India Express) were analysed, of which 191 or nearly 72 per cent were identified for repetitive defects. Speaking on the data, an Air India spokesperson said, "We have, out of abundance caution, carried out checks across our fleet. Also Read UK seeks answer from Air India over Boeing 787 Dreamliner fuel switch incidentA senior Air India executive said there are different types of equipment which are checked on planes.