Pilots in India are calling for inspections of Boeing’s 787 planes after a backup power system deployed on a recent Air India flight, a sign there may have been a problem with the plane’s hydraulic or electric systems.

The backup power system — called the ram air turbine, or RAT — is the same one that deployed just before an Air India 787 crashed in Ahmedabad, India, in June, killing 241 of the 242 people on board and 19 people on the ground.

India’s civil aviation authority is still investigating the deadly crash, but said in a July preliminary report that it did not recommend any actions related to Boeing’s 787 Dreamliner or the GE Aerospace engines that power it.

Still, some pilots’ organizations and safety advocates have called for more inspections to ensure there is not a problem w

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