Urga SF34 at Timbuktu on Jun 1st 2023, temporary runway excursion on landing
Last Update: May 22, 2024 / 14:59:03 GMT/Zulu time
Incident Facts
Date of incident
Jun 1, 2023
Classification
Incident
Airline
Air Urga
Flight number
UN-50
Departure
Bamako, Mali
Destination
Timbuktu, Mali
Aircraft Registration
UR-ELZ
Aircraft Type
SAAB 340
ICAO Type Designator
SF34
Ukraine's NBAAI is investigating the occurrence and reported, the crew saw a flock of birds cross the runway from right to left and wanted to avoid the birds, hence tried to steer to the right, at the same time the crew tried to engage Beta on the engines. When the right beta activated the crew felt additional deviation to the right and could not keep the aircraft on the runway.
In May 2024 the NBAAI released their final report in Ukrainian only (Editorial note: to serve the purpose of global prevention of the repeat of causes leading to an occurrence an additional timely release of all occurrence reports in the only world spanning aviation language English would be necessary, an Ukrainian only release does not achieve this purpose as set by ICAO annex 13 and just forces many aviators to waste much more time and effort each in trying to understand the circumstances leading to the occurrence. Aviators operating internationally are required to read/speak English besides their local language, investigators need to be able to read/write/speak English to communicate with their counterparts all around the globe).
The final report concludes the probable causes of the incident were:
the cause of the incident, the aircraft rolling off the runway during landing, was the movement of the engine control levers to revers before the beta light was activated and insufficient actions to keep the aircraft on the runway.
Contributing was the non-synchron installation of the engine control levers leaving a difference of about 6 degrees between the levers.
The NBAAI summarized the sequence of events:
After touchdown the captain, pilot flying, pulled the engine control levers to idle, the first officer called out that the left engine reverse indication had not illuminated, only the right hand reverse indication had activated. The captain however moved both engine control levers into the beta range. The aircraft subsequently departed the runway despite attempts by the crew to keep the aircraft on the runway. There were no injuries, the aircraft did not sustain any damage.
The NBAAI stated that the crew did not report a bird strike to Air Traffic Control, when ATC queried them their only reply "someone saw something". A bird strike was not being discussed between the crew.
Incident Facts
Date of incident
Jun 1, 2023
Classification
Incident
Airline
Air Urga
Flight number
UN-50
Departure
Bamako, Mali
Destination
Timbuktu, Mali
Aircraft Registration
UR-ELZ
Aircraft Type
SAAB 340
ICAO Type Designator
SF34
This article is published under license from Avherald.com. © of text by Avherald.com.
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