Preliminary Report and Public Notice on serious incident of Boeing B747-400F freighter released

The Air Accident Investigation Authority (AAIA) today (July 16) released the Preliminary Report and Public Notice PLR-2024-01 on a serious incident concerning a multiple hydraulic system failure of a Boeing B747-400F freighter (registration mark N406KZ) operated by Atlas Air at Hong Kong International Airport on June 17, 2024.

A spokesperson for the AAIA said that the Preliminary Report has been published to provide factual information established in the investigation's early-evidence collection phase to both the aviation industry and general public in a timely manner, and should be regarded as tentative. The full report is available for download from the AAIA webpage (www.tlb.gov.hk/aaia/eng/investigation_reports/index.html).

"The investigation team is conducting a detailed analysis of the data and information collected in order to determine the circumstances and causes of this occurrence with a view to preventing a recurrence in conjunction with identifying areas for further investigation or lines of inquiry to follow up," the spokesperson said.

The AAIA, an independent investigation authority formed under the Transport and Logistics Bureau, is responsible for the investigation of civil aircraft accidents and incidents in accordance with the Hong Kong Civil Aviation (Investigation of Accidents) Regulations (Cap. 448B) and with reference to the International Civil Aviation Organization's standards.