The UAE General Civil Aviation Authority (GCAA) revealed a new details regarding the UPS Boeing 747 - 400 Cargo crash on 3rd of September.
The GCAA investigation team announced that 100% of the flight recorders from the Digital Flight Data Recorder (DFDR) and the Cockpit Voice Recorder (CRV)(known as black boxes) was successfully downloaded in the USA National Transportation Safety Board (NTSB) laboratories .
Analysis of the data is still in progress by the UAE GCAA, Investigation Section with the assistance of international experts. The investigation is continuing and the teams are focusing on understanding the issues involved around the cargo carried and the associated risks.
Furthermore and based on the information gathered to date, specific areas of the investigation are cantered around several aircraft systems and the standard operational procedures, which are reviewed.
The new records show that after the aircraft departure and approached the top of climb, at approximately 19:12 hrs, a Main Deck Fire Warning alarm sounded. The crew initiated the check-list and requested from Bahrain ATC, the nearest airport. They were offered Doha, but the flight crew elected returning to Dubai.
There were sequential systems in the flight deck indicating fire or smoke in the Main Deck and the lower aft Cargo compartment.
The records also shows that during their descent there is an evidence that the crew had difficulties seeing the cockpit primary flight instrument displays due to the thick smoke, There is also evidence to indicate that there was some level of difficulty in the communication process.
The accident aircraft overflew the Dubai runway at approximately 4000 feet, shortly after that performed a right hand turn and in approximately five minutes later the control centre alerted the Emergency Services that there had been an accident at the Nad Al Sheba area .
The GCAA revealed that the investigations involves Agencies, Entities and Authorities in the Middle East, Europe, USA and Asia and will continue for another several months.
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