- IndiGo flight six-E seven-twenty-three declared a full emergency landing at Chennai Airport due to an engine failure.
- The aircraft landed safely with two hundred twenty-four people on board on August eleventh, twenty twenty-six.
- Investigators are probing an oil leak and the mechanical failure of the left engine on the Airbus A-three-twenty-neo.
IndiGo flight 6E-723 landed safely at Chennai Airport late Tuesday after its pilot reported a left-engine snag and an oil leak during the approach, triggering a full emergency for the aircraft’s arrival.
The Kolkata-to-Chennai service declared the emergency at 11:29 p.m. IST on August 11, 2026. It touched down on Runway 25 at 11:37 p.m., seven minutes after its scheduled 11:30 p.m. arrival.
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All 224 people aboard were safe. The airport withdrew the emergency at 11:47 p.m., 10 minutes after the landing.
Fire tenders, medical teams and rescue personnel were deployed as a precaution. Normal airport operations resumed shortly afterward.
The aircraft was later declared unairworthy and moved to a remote parking bay for inspection. The Directorate General of Civil Aviation ordered a detailed probe into the engine failure and reported oil leak.
The Airports Authority of India said the aircraft had an inoperative left engine and that emergency arrangements were activated before its arrival.
"A Full Emergency was declared at 2329 IST for flight 6E-723, operating from Kolkata (CCU) to Chennai (MAA), due to a left engine inoperative condition. The aircraft was expected to arrive at 2337 HRS, with the scheduled time of arrival being 2330 HRS. Following the declaration of the Full Emergency, the necessary emergency response arrangements were initiated to facilitate the safe arrival of the aircraft."
The airport authority’s statement listed 2337 HRS as the aircraft’s expected arrival and 2330 HRS as its scheduled time. The plane reached the runway at 11:37 p.m.
The A320neo remains grounded for a root-cause examination
Engineers found the left engine “inoperative” after landing, with visible evidence of an oil leak. The aircraft entered an aircraft-on-ground status at approximately 12:00 a.m. and was towed to a remote parking bay.
The aircraft is an Airbus A320neo. It remained grounded on August 12 while engineers began a root cause analysis.
The DGCA review will examine the aircraft’s maintenance history and the crew’s adherence to emergency protocols. Investigators are also focusing on the pylon interface and internal engine components.
The examination will assess whether the failure points to a wider problem associated with the Neo engine series. The aircraft has not returned to service.
The carrier said the technical problem developed shortly before landing and that the pilots followed established procedures.
“IndiGo flight 6E 723, operating from Kolkata to Chennai on August 11, 2026, experienced a technical snag shortly before landing in Chennai. Following standard operating procedures, all relevant authorities were immediately informed, and the pilots made a priority landing at the Chennai International Airport.”
The service originated at Netaji Subhas Chandra Bose International Airport in Kolkata, identified by the code CCU, and was bound for Chennai International Airport, identified as MAA.
| Flight detail | Information |
|---|---|
| Flight | 6E-723 |
| Route | Kolkata to Chennai |
| Aircraft | Airbus A320neo |
| Emergency declared | 11:29 p.m. IST, August 11, 2026 |
| Scheduled arrival | 11:30 p.m. |
| Landing | 11:37 p.m. on Runway 25 |
| Emergency withdrawn | 11:47 p.m. |
| People aboard | 224 |
The airport account put the number aboard at 224, including passengers and crew. One report cited a total of 229 people, but the airport-related account used for the emergency timeline cited 224.
Fire crews and medical teams lined the runway
Passengers and crew disembarked safely after the aircraft reached the runway. Fire tenders, rescue vehicles and medical teams had been positioned to respond if the landing deteriorated.
Passengers reported anxiety as the emergency vehicles met the aircraft. No injuries or casualties were reported.
V. Muruganandam, the Airports Authority of India’s Regional Executive Director for the Southern Region, assumed that role on June 17, 2026. M. Raja Kishore, Director of Chennai International Airport, provided the initial confirmation that emergency response arrangements had been activated.
Kishore was appointed airport director in September 2025. The response remained precautionary after the aircraft landed safely, and the emergency was withdrawn at 11:47 p.m.
The regulator is examining the incident amid wider scrutiny
The investigation follows a period of increased attention to technical reports involving Indian private airlines. Ministry of Civil Aviation data recorded 268 technical instances during the 13 months leading up to early 2025, with the carrier accounting for 118.
Ram Mohan Naidu Kinjarapu, the Union Aviation Minister, is monitoring the rise in technical snags among Indian carriers through his office.
A separate IndiGo flight from Dubai to Mumbai made an unscheduled landing in Rajkot in July 2026 after a smoke alert in the cargo hold. That incident involved a different aircraft and route.
The current investigation is focused on the engine failure and oil leak reported during the Kolkata service’s descent. It will also review maintenance records and whether the crew followed emergency procedures.
The plane’s remote parking position keeps it out of passenger service while the technical examination continues. The aircraft remained grounded on August 12, with the pylon interface and internal engine components among the areas under review.
