Search & investigation archive
A dated entry in the MH370 record.
The date below is the event date recorded in the earlier archive. Background reports are provided for context; they do not independently verify every detail in this entry. Read the original source before relying on a specific claim.
Recorded event date:
Authorities conclude the intensive surface search and concentrate planning on underwater operations in the southern Indian Ocean.
Officials describe the challenge of locating an aircraft in deep, remote waters and emphasize that underwater search methods and target areas are refined using available satellite and engineering analysis.
Search coordination continues as assets transition toward longer-duration survey work.
Check the record
Official account of the investigation and search history.
Government investigation documents and supporting records.