![]() ![]() One or both of the equipment cooling warning lights came on to indicate low airflow through the cooling fans (a result of the decreased air density), accompanied by the master caution light. In the next few minutes, several warning lights on the overhead panel in the cockpit illuminated. The warning should have prompted the crew to stop climbing, but it was misidentified by the crew as a take-off configuration warning, which signals that the aircraft is not ready for take-off, and can only sound on the ground. As it passed through an altitude of 12,040 feet (3,670 m), the cabin altitude warning horn sounded. The aircraft took off at 9:07 with the pressurisation system still set to "manual", and the aft outflow valve partially open.Īs the aircraft climbed, the pressure inside the cabin gradually decreased. During these checks, no one in the flight crew noticed the incorrect setting. However, the engineer failed to reset it to "auto" on completion of the test.Īfter the aircraft was returned into service, the flight crew overlooked the pressurisation system state on three separate occasions: during the pre-flight procedure, the after-start check, and the after take-off check. In order to carry out this check without requiring the aircraft's engines, the pressurisation system was set to "manual". The inspection was carried out by a ground engineer who then performed a pressurization leak check. They requested a full inspection of the door. When the aircraft arrived from London Heathrow earlier that morning, the previous flight crew had reported a frozen door seal and abnormal noises coming from the right aft service door. Louisa Vouteri, a 32-year-old Greek national living in Cyprus, replaced a sick colleague as the chief purser. Charalambous had accrued 7,549 flight hours throughout his career. Pampos Charalambous, 51, a Cypriot who flew for Helios, served as the first officer and had worked exclusively for Helios for the last five years. He had been flying for 35 years (including for Interflug before 1990) and had accrued 16,900 flight hours. Hans-Jürgen Merten, a 58-year-old German contract pilot hired by Helios for the holiday flights, was the captain. The scheduled arrival time in Athens was 10:45 am. The flight was scheduled to leave Larnaca, Cyprus, at 09:00 am local time, and fly to Prague via Athens. The aircraft had arrived in Larnaca from London Heathrow at 01:25 that morning. Aside from the downed aircraft, the Helios fleet consisted of two leased Boeing 737-800s and an Airbus A319-100 delivered on. The aircraft involved in this incident was first flown on 29 December 1997 and had been operated by DBA in 1998 until it was leased by Helios Airways on 16 April 2004 and nicknamed Olympia, with registration 5B-DBY. ![]()
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