Aviation regulator DGCA had in November, 2014, mandated the airlines to apply restraining devices to tackle an unruly passenger when all conciliatory approaches had been exhausted, including verbal communication.
It had also asked the carriers to properly train their flight and cabin crew as well as ground staff to handle such cases.
"We at IndiGo carry a restraint device on all our domestic flights. IndiGo complies with the government guidelines and we have a standard operating procedure (restricted) to restrain passengers only when all the conciliatory approaches have been exhausted," IndiGo said.
IndiGo also said that prior to employing the restraining technique, a very useful industry-developed procedure is used by it for determining the seriousness of an unruly or assaultive-passenger incident, and the responses thereby warranted. It said the procedure pertains to a four-tiered scheme of threat levels.
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IndiGo had last week offloaded 70 passengers from a Raipur -bound flight from Hyderabad alleging "unruly behaviour". The passengers have in turn filed a police complaint alleging "harassment" by the airline's staff.
Airlines from around the world had announced they would
"SpiceJet has been following the DGCA guidelines, including on keeping restraint devices to deal with unruly passengers on board since 2014 itself," an airline official said.
According to the DGCA guidelines issued on November 18, 2014, unruly behaviour could be the result of unsatisfactory service/condition or effect of a series of such events that build up.
Besides, crew members must attempt to defuse a critical situation until it becomes clear that there is no way to resolve the same through verbal communication and written notice to passenger, the guidelines state, adding that "restraining devices should be used when all conciliatory approaches have been exhausted".