Back to home pageEW-290PA 737-500 Runway Excursion Landing in Fog

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The National Bureau of Air Accidents Investigation of Ukraine (NBAAI) have released their final report (in Russian) into the damage sustained during landing in fog of Belavia B737-500 at Kiev Boryspil (UKBB) on Dec 9th 2018.

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*** Updated 18 Apr 2019 ***

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The aircraft was performing a Cat I ILS approach onto Runway 18L at Kiev. The captain (52, ATPL, 14,800 hrs total, 8,100 hrs on type) was PF, the F/O (21, CPL, 286 hrs total, 286 hrs on type) was PM.

UKBB 091600Z 20003MPS 0600 0450NW R18L/0750 R18R/0550 FG VV002 01/01 Q1004 R88/611040 NOSIG=

The crew extended the landing gear and extended the flaps to 40 degrees on approach, autothrust maintained a speed of 130 KIAS after the flaps reached 40 degrees. Autothrust was disconnected at 119 feet AGL, after disconnecting the autothrottle the aircraft drifted slightly to the left. At 76 feet AGL the captain disengaged the autopilot, the slight drift to the left remained, the speed was 131 KIAS, the aircraft was within all landing criteria and fully stabilized.

During the radio altimeter calls 50, 40, 30... there was a call "Уходим влево!" (Deviating to the left!) on the CVR. Descending through 16 feet AGL steering input was provided to roll the aircraft to the left, the left bank angle increased to about 8 degrees. The aircraft touched down 517 meters past the runway threshold and 25.4 meters to the left of the runway center line. Within a second after touchdown the left main gear went off the paved surface of the runway. Subsequently full right rudder input was provided and the aircraft returned onto the runway again.

The probable cause was that the captain had seen "a stable visual illusion in the fog" and formed a mental model that the left hand runway edge lights were the center-line lights. He only realized the error after touchdown by which time a balked landing was no longer possible.

Photos from final report.

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