Archive · 9 Nov 2025
Delhi Airport Glitch Resolved, Flights Return to Normal
The computers that help air traffic controllers plan flights at Delhi's airport had a problem on Friday.
This issue caused over 800 flights to be delayed.
The problem lasted for more than 15 hours.
The people in charge of the airport's systems worked hard to fix it.
By Friday evening, they had fixed the computer glitch.
By Saturday, all the flights were back to normal, and everything was running smoothly again.
Flight operations at Delhi airport have returned to normal.
A technical glitch in the Automatic Message Switching System (AMSS) caused over 800 flight delays.
The disruption lasted for over 15 hours, starting Friday morning.
The Airports Authority of India (AAI) resolved the issue by Friday evening.
Airport operator DIAL confirmed normal operations on Saturday.
- Who
- Airports Authority of India (AAI), Delhi International Airport Limited (DIAL)
- What
- A technical glitch in the Automatic Message Switching System (AMSS) caused over 800 flight delays. The issue has since been resolved, and operations have returned to normal.
- When
- The glitch occurred on Friday, lasting over 15 hours from approximately 5:45 am, with resolution by 9 pm the same day. Normal operations were confirmed on Saturday.
- Where
- Indira Gandhi International Airport (IGIA), Delhi
- Why
- A technical problem with the Automatic Message Switching System (AMSS), which supports air traffic control's flight planning process.
Concerns about System Aging and Previous Warnings
Official Statement on System Resolution and Normal Operations
System Vulnerability and Disruption
Concerns about System Aging and Previous Warnings
The Air Traffic Controllers' Guild of India had reportedly warned about aging technology and the need for system upgrades. A parliamentary committee also highlighted issues of performance degradation and system lag in air traffic management systems.
Official Statement on System Resolution and Normal Operations
A technical glitch in the Automatic Message Switching System (AMSS) disrupted flight planning operations for over 15 hours, causing significant delays.
Resolution and Impact
Concerns about System Aging and Previous Warnings
Despite prior warnings, the system experienced a prolonged outage.
Official Statement on System Resolution and Normal Operations
Airport operator DIAL confirmed that flight operations at Delhi airport returned to normal on Saturday, after the Airports Authority of India (AAI) addressed the issue with the AMSS by approximately 9 pm on Friday.
- Affected System
- Automatic Message Switching System (AMSS)
- Location
- Indira Gandhi International Airport (IGIA), Delhi
- Disruption Start
- Approximately 5:45 am on Friday
- Disruption Duration
- Over 15 hours
- Resolution Time
- Approximately 9 pm on Friday
- Impact
- Over 800 flights delayed
- Current Status
- Flight operations are normal as of Saturday
Sources
Delhi Airport Flights Returning to Normal: DIAL
Delhi Airport Chaos Ends: Flight Operations Back to Normal After Technical Glitch; Check Passenger Advisory
Normalcy returns at Delhi airport after massive technical snag delays 800 flights
Mumbai-London Air India Flight AI129 Delayed by Nearly 7 Hours - What We Know So Far
Flights slowly resume at Delhi airport after 15-hour tech glitch disrupts over 800 operations
Air India Mumbai-London Flight Delayed By Over 6 Hours Due To Tech Glitch
Delhi IGI Airport Resumes Flight Operations After AMSS Glitch Delays Over 200 Flights
Delhi Airport issues fresh advisory for fliers day after technical glitch hits over 800 flights: ‘All operations are normal’
Air India's Mumbai-London flight delayed due to technical issues
Flight operations at Delhi airport back to normal: DIAL
Air India’s Mumbai–London flight delayed by seven hours due to technical snag - Telegraph India
Flight operations at Delhi airport returning to normal
24 hours after massive ATC glitch, Delhi airport flight ops finally return to normal
ATC Guild warned of automation gaps months before major Delhi airport glitch
What is GPS spoofing? After 800+ flight disruptions at Delhi airport, is it time for ATC overhaul?
Delhi To Jammu Flight Cancelled Amid Ongoing Congestion At IGI Airport After Tech Glitch
Air India Flight AI129 Mumbai-London Delayed By 7 Hours, Passengers Stranded At Airport
Air Traffic Controllers' Body Sought Upgrades For Smooth Airport Ops In July
Aviation Minister Visits Delhi ATC Tower, Reviews Operations After Glitch Disrupted 800 Flights
Minister Reviews, Orders System Upgrade After Delhi Airport Glitch
Delhi airport's ATC glitch: Flight operations normal; govt directs officials to conduct detailed root-cause analysis
Delhi airport returns to normal after 15-hour ATC system glitch, civil aviation ministry orders root-cause analysis
Delhi Airport Update: IndiGo Says Flight Operations Stabilising After AMSS Glitch At IGI Airport
Civil Aviation Minister Ram Mohan Naidu Visits Delhi ATC Tower, Reviews Operations After Technical Glitch
Naidu directs manpower boost, root-cause probe after Delhi Airport ATC glitch hits flight schedules
Glitch hits hundreds of flights at Delhi airport: Aviation minister visits ATC to review ops
Ignored Warnings, Grounded Flights: How Delhi Airport’s System Crash Was a Crisis Foretold
Could technical snag at Delhi airport have been prevented? Report claims air traffic controllers flagged issue in July
Aviation minister Naidu directs root cause analysis of Delhi airport's ATC glitch; calls for tech advancements
