MS804
Plane crash investigation
Deep ready
DOS was able to offer a solution to investigators where a single support vessel would deploy a fully integrated 6000m depth rated spread.
A spread able to cover the seabed with long range side scan sonar, which would be equipped with several flight recorder pinger locator systems, and be able to recover debris with an ultra-deep ROV. The full spread was permanently fitted on board our vessel SV John Lethbridge, which eliminated long mob/demob times and/or long calibration periods.
- 6000 msw side scan sonar
- 6000 msw ROV
- 6000 msw salvage capacity
- 10 km range USBL
- INS based positioning systems
- Flight recorder locators
INTEGRATED SYSTEM
Quickly operational on site
Flight Egyptair MS804
The search
THE SEARCH
Located by MAK iX
This means that emissions from flight recorders will also make periodical acoustic marks on sonar profiles, allowing detecting/confirming the target within or outside the imagery range!
Illustration below is a generic side scan imagery and is not related to MS804.
Integrated system
From survey to ROV operations in a minute.
Having achieved this, operations were switched from sonar to ROV work without the need for an extra port call, involving demobilisation and remobilization, as all the systems were permanently operational on the SV John Lethbridge and the survey personnel can operate both at will.
- No mobilisation/demobilisation
- No port call required
- Vehicles swap in a minute
Flight Egyptair MS804
ROV operations
THE SEARCH
4 days later
The close cooperation between the Egyptian authorities (the CEA), the French aircraft accident investigation department (the BEA), Airbus and the legal, forensic and medical authorities and their representatives allowed for fast and efficient operations covering all aspects of the project and were instrumental in the rapid and successful conclusion of the mission.
DOS were particularly impressed by the quality of personnel from all the above cited organisations which we worked with and by the spirit of cooperation and comradeship which permeated this team during this difficult operation.
