Aircraft Accident Investigation Bureau (AAIB)
Why in News?
- Preliminary report released by AAIB on the Air India AI 171 crash (Ahmedabad) where 241 of 242 onboard died.
- Found both engine fuel control switches moved to ‘CUTOFF’ seconds after takeoff.
- Raised suspicions, leading to detailed investigation using CVR (Cockpit Voice Recorder) and FDR (Flight Data Recorder).
Relevance
GS Paper 2 – Governance & International Institutions:
GS Paper 3 – Infrastructure, Science & Tech:
Aircraft Crash Investigation: Global Norms
- Governed by the 1944 Chicago Convention (ICAO – UN aviation body).
- ‘State of Occurrence’ leads the investigation.
- Other stakeholders:
- State of Registry – country where aircraft is registered.
- State of the Operator – which operated the flight.
- State of Design – responsible for design approval.
- State of Manufacture – responsible for final aircraft assembly.
- Rules outlined in Annex 13 of the Convention.
About AAIB: India’s Independent Crash Investigation Body
- Established: 2012, post-ICAO directive to separate regulation from investigation.
- Works under the Ministry of Civil Aviation as an Attached Office.
- Ensures impartial, independent investigations, distinct from DGCA (regulatory body).
Legal Framework
- Section 7 of the Aircraft Act, 1934 empowers rules for accident investigation.
- Initially, handled by DGCA’s Air Safety Directorate under Aircraft Rules, 1937.
- Current governing rules:
- Aircraft (Investigation of Accidents and Incidents) Rules, 2012
- Amended in 2017 and 2021
Functions of AAIB
- Investigates:
- All accidents and serious incidents involving:
- Aircraft over 2,250 kg All-Up Weight
- Turbojet aircraft
- Classification of events:
- Accident
- Serious Incident
- Incident
- All accidents and serious incidents involving:
Key Powers
- Unrestricted access to:
- Crash site, black boxes, records, operators, regulator data
- Can collaborate with:
- HAL, DGCA labs, and other experts
Investigation Focus
- Only prevention-focused: No blame or liability is assigned (Rule 3 of 2017 Rules)
- Steps:
- Immediate site inspection
- Evidence preservation
- Technical and expert analysis
- Draft and final report published, submitted to ICAO and stakeholders
Additional Roles
- Conducting safety studies
- Issuing safety recommendations to:
- DGCA
- International aviation regulators
Conclusion
- The AAIB plays a critical role in aviation safety.
- The AI 171 crash highlights the need for transparent, independent, and quick investigations.
- Strengthening AAIB with modern forensics, AI tools, expert manpower, and global partnerships is vital for India’s fast-growing aviation sector.
