An IndiGo flight travelling from Agartala to Delhi was diverted to Lucknow on Tuesday evening, September 15, after a smoke warning was triggered in the aircraft’s cargo area. Flight 6E6504, carrying 103 passengers and six crew members, landed safely at Chaudhary Charan Singh International Airport at 6:29 pm.
Lucknow airport immediately activated its emergency response protocols, deploying fire and rescue teams, ambulances, medical personnel, security staff and terminal support teams. All 109 people on board deboarded safely, with no injuries or untoward incident reported.
The airport spokesperson said, “Full fire and rescue, ambulance, medical, security and terminal support were deployed to ensure a safe and smooth handling of the aircraft, passengers and crew.”
The aircraft was subsequently taken for technical checks, while the passengers continued their journey to Delhi on an alternate IndiGo flight that departed Lucknow at around 9:45 pm. Initial checks reportedly found no signs of smoke or fire, although the exact reason for the warning remains under examination.
Smoke Alert Triggers Precautionary Diversion
The incident unfolded after IndiGo flight 6E6504, operating from Agartala to Delhi, received a smoke warning indication in its cargo area while airborne. The cockpit crew treated the warning as a potential safety issue and diverted the aircraft to Lucknow rather than continuing towards Delhi.
Flight-tracking data reported by The Times of India showed that the aircraft temporarily transmitted squawk 7700, the internationally recognised transponder code indicating a general emergency. The aircraft landed safely at 6:29 pm with all 103 passengers and six crew members on board.
Lucknow airport had already activated its emergency preparedness measures before the aircraft arrived, positioning fire and rescue personnel, ambulances, medical teams and security staff. Importantly, there was no confirmed fire on board.
Initial technical checks reportedly found no evidence of smoke or fire in the cargo area, while a more detailed examination was being carried out to determine what triggered the warning. Reports describing the alert as a “false alarm” should therefore be treated cautiously until the technical investigation establishes the precise cause.
Aircraft Grounded, Passengers Continue Journey
Following the safe landing, passengers and crew were deboarded and the aircraft was taken for technical inspection. The aircraft has been identified as an Airbus A320neo registered VT-ISY, according to flight-tracking information cited by The Times of India.
The aircraft was reportedly grounded while checks were carried out. An alternate IndiGo aircraft was subsequently arranged for the passengers, with Hindustan Times reporting that the replacement flight departed Lucknow for Delhi at around 9:45 pm.
The incident comes less than two weeks after another Delhi-bound flight made a precautionary landing at Lucknow following a similar cargo smoke warning. On September 3, Air India Express flight IX1253, operating from Varanasi to Delhi with 155 passengers, diverted to Lucknow after its cargo-hold smoke alarm activated shortly after take-off.
That aircraft also landed safely, and preliminary checks found no evidence of smoke or fire. In both cases, however, the similarity in the warnings does not by itself establish a common technical cause.
The Logical Indian’s Perspective
For passengers, a smoke warning mid-flight can understandably be frightening, even when subsequent checks do not establish an actual fire. The response in this case highlights why aviation safety procedures rely on precaution rather than waiting for a potential danger to become visible. The crew diverted the aircraft, Lucknow airport prepared emergency services, and all 109 people were brought safely to the ground before the aircraft underwent further checks.
At the same time, the distinction between a warning and a confirmed fire matters, particularly in an age when incomplete information can quickly spread online. The priority now should be a transparent technical assessment of what triggered the alert and whether any corrective action is required before the aircraft returns to service.
Also read: Swatantra Bhardwaj Gets 3-Week Interim Bail In Jantar Mantar Assault Case: Reports
