Being a member State of ICAO, Sri Lanka is obligated to comply with the Standards and Recommended Practices contained in Annexes to the convention on International Civil Aviation.

ICAO Annex 13 contains Standards and Recommended Practices relating to conduct of Aircraft Accident and Incident Investigations. Civil Aviation Authority Act No. 14 of 2010 and Aircraft Accident and Incident Investigation Rules of Sri Lanka contain the applicable legislation and rules on aircraft accident investigation.

The sole objective of the investigation of an accident or incident shall be the prevention of accidents and incidents due to similar causes in future. It is not the purpose of the investigation to apportion blame or liability. Any judicial or administrative proceedings to apportion blame or liability should be separate. The emphasis of an investigation is on remedial action.

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An accident means, an occurrence associated with the operation of an aircraft which, in the case of a manned aircraft takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, or in the case of an unmanned aircraft, takes place between the time the aircraft is ready to move with the purpose of flight until such time it comes to rest at the end of the flight and the primary propulsion system is shut down, in which;

A- a person is fatally or seriously injured as a result of
i. being in the aircraft;

ii. direct contact with any part of the aircraft, including parts which have become detached from the aircraft; or exposure to jet blast,


B- the aircraft sustains damage or structural failure which:
i. adversely affects the structural strength, performance or flight characteristics of the aircraft; and

ii would normally require major repair or replacement of the affected component, or

C- the aircraft is missing or completely inaccessible.

the above A) excludes the injuries from natural causes, self-inflicted or inflicted by other persons, or the injuries to stowaways hiding outside the areas normally available to the passengers and crew. The above B) excludes engine failure or damage, when the damage is limited to a single engine, (including its cowlings or accessories), propellers, wing tips, antennas, probes, vanes, tires, brakes, wheels, fairings, panels, landing gear doors, windscreens, the aircraft skin (such as small dents or puncture holes), or minor damages to main rotor blades, tail rotor blades, landing gear, and those resulting from hail or bird strike (including holes in the radome)

2010-12-01 15:03:34

"Causes" mean actions, omissions, events, conditions, or a combination thereof, which led to the accident or incident. The identification of causes does not imply the assignment of fault or the determination of administrative, civil or criminal liability.

"Fatal injury" means an injury resulting in death within thirty (30) days of the date of the accident.

"Incident" means an occurrence, associated with the operation of an aircraft other than an accident, which affects or could affect the safety of operation.

"Serious incident" an incident involving circumstances indicating that there was a high probability of an accident and is associated with the operation of an aircraft which, in the case of a manned aircraft, takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, or in the case of an unmanned aircraft, takes place between the time the aircraft is ready to move with the purpose of flight until such time it comes to rest at the end of the flight and the primary propulsion system is shut down.

The following list is not exhaustive and only serves as guidance to the definition of serious incident. 1. Near collisions requiring an avoidance manoeuvre to avoid a collision or an unsafe situation or when an avoidance action would have been appropriate..

2. Controlled flight into terrain only marginally avoided..

3. Aborted take-offs on a closed or engaged runway, on a taxiway* or unassigned runway..

4. Take-offs from a closed or engaged runway, from a taxiway* or unassigned runway..

5. Landings or attempted landings on a closed or engaged runway, on a taxiway* or unassigned runway..

6. Gross failures to achieve predicted performance during take-off or initial climb..

7. Fires and smoke in the passenger compartment, in cargo compartments or engine fires, even though such fires were extinguished by the use of extinguishing agents..

8. Events requiring the emergency use of oxygen by the flight crew..

9. Aircraft structural failures or engine disintegrations, including uncontained turbine engine failures, not classified as an accident..

10. Multiple malfunctions of one or more aircraft systems seriously affecting the operation of the aircraft..

11. Flight crew incapacitation in flight..

12. Fuel quantity requiring the declaration of an emergency by the pilot..

13. Runway incursions classified with severity A. .

14. Take-off or landing incidents. Incidents such as under¬shooting, overrunning or running off the side of runways..

15. System failures, weather phenomena, operations outside the approved flight envelope or other occurrences which could have caused difficulties controlling the aircraft..

16. Failures of more than one system in a redundancy system mandatory for flight guidance and navigation..

17. Air traffic services related incidents; such as ATM-specific occurrences, ATC Navigation and Communications significant malfunction or deterioration of service, ATC overload, failure or unplanned shutdown of a major operational ATC computer system.

18. Decompression.

19. Bomd onboard aircraft on ground or inflight.

20. Biological / Chemical threats onground or inflight.

21. Highjacking inflight or onground.

22. Any disruptive passenger incident. (any pssenger who became disruptive during flight time any incident/accident occured pertaining to any passenger behave)..

23. Any other incident on ground or in air or in and around operational airport which requires further investigations by CAASL as per the evaluation of Accountable Manager of the Responsible Organization.


(a) the owner, operator, hirer, lessor, agent or the pilot-in- command of the aircraft at the time the accident or incident as the case may be, occurred;

(b) where the accident or incident occurs on or adjacent to an aerodrome in Sri Lanka, the owner or operator of such aerodrome or the Air Traffic Service Provider ;

(c) where the accident or incident occurs in Sri Lankan airspace, the ATS provider;

(d) where the accident or incident occurs during a flying display or festival being held within Sri Lanka, the organizer of such flying display or festival; or

(e) where the accident or incident occurs during a demonstration flight in Sri Lanka, the handler or organizer of such demonstration flight.

(f) Police or Security Forces

(g) Any other Local Authority/ Eyewitness or general public

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1.Conduct the investigation

2.Issue a report

3. Implement measures

4. Safety Recommendations

The CAASL would recommend to the appropriate authorities, including those in other States, any preventive action which it considers necessary to be taken promptly to enhance aviation safety at any stage of an accident or incident investigation.

The CAASL will address, when appropriate, any safety recommendations arising out of its investigations, to the accident investigation authorities of other State(s) concerned and, when ICAO documents are involved, to ICAO.

Action on Safety Recommendation

The CAASL as the State receiving safety recommendations from another State, consequent to an Accident Incident Investigation carried out by that State will inform that state of the preventive action taken or under consideration, or the reasons as to why no action will be taken.

Report format >>
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Aircraft Accident/Incident Investigation Reports >>
2010-06-17 01:58:12

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• the identification of the person providing information

• the nature of the occurrence

• the date and local time of the occurrence

• location

• name of the owner, operator and hirer of the aircraft involved

• the manufacturer, model, nationality and registration marks and serial number of the aircraft

• the time and last point of departure and the next point of intended landing

• the Qualification of the pilot-in-command and the nationality of the crew and passengers;

• the number of crew members and passengers on board the aircraft at the time of the occurrence;

• the number of fatalities of crew members, passengers or other persons respectively or seriously injured

• the extent of damage

• the position of the aircraft with reference to some easily identified geographical point

• the latitude and longitude and topographical characteristics;

• the presence and description of dangerous goods on board the aircraft.

When notifying the CAASL, notifying person should provide whatever information he is able to gather as soon as possible without waiting for all the information to become available. Details omitted from the notification may be provided later, when they become available.

2010-12-01 15:28:14

Aircraft Accident Incident Reporting Form>>
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Mandatory (During office hours)

CAASL - Accident Investigation Unit (AIU) - +94-11-2358820

CAASL - General - +94-11-2304632, +94-11-2304606

24 hours

DGCA +94 -777 352 081

Senior Director +94 -777 352 083

Director Flight Safety +94 -777 751 826

Director Aeronautical Servicers +94 -773 596 210

Fax: +94 – 11 – 2304699; +94 – 11 – 2304706; +94-11-2304644

2012-06-14 16:16:44

2012-06-14 16:18:31

Arrangement between CAA, Sri Lanka and BEA, France
2012-07-25 10:33:04
Arrangement between CAA, Sri Lanka and AAIB, Singapore

View agreement
2012-05-12 19:23:39

Contact information of Aircraft Accident Investigation Authorities in other States
2013-02-13 10:04:02
©2010 Civil Aviation Authority of Sri Lanka