Business Aviation Centre SF34 at Lubumbashi on Jul 29th 2013, runway excursion on takeoff

Last Update: April 18, 2020 / 16:38:51 GMT/Zulu time

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Incident Facts

Date of incident
Jul 29, 2013

Classification
Accident

Flight number
UNO-805

Aircraft Registration
UR-ARO

Aircraft Type
SAAB 340

ICAO Type Designator
SF34

A Business Aviation Centre Saab SF-340B on behalf of United Nations, registration UR-ARO performing flight UNO-805 from Lubumbashi to Goma (Democratic Republic of Congo) with 21 people on board, was accelerating for takeoff from Lubumbashi when the aircraft overran the end of the runway at about 06:05L (04:05Z). No injuries occurred, the aircraft received substantial damage.

Ukraine's State Aviation Service reported in their monthly bulletin that the aircraft went beyond the end of the runway during takeoff from Lubumbashi. The aircraft received considerable damage but there were no injuries. The occurrence was rated an accident and is being investigated by the authorities of the Democratic Republic of Congo, Ukraine's State Aviation Service have accredited a representative to the investigation.

Local sources reported the aircraft was accelerating for takeoff when the right hand propeller separated causing the aircraft to veer right off the runway. Takeoff was rejected, the aircraft came to a stop about 200 meters off the runway center line in rough terrain.

No weather data, neither Metars nor local weather station data, are available for the time of the accident.

Sweden's Haverikommission released an interim statement in French only by DR Congo's BPEA dated Jan 30th 2014 and reported that following the interim statement the investigation was closed, no final report was published. The interim report states regarding conclusions of the probable causes:

At this stage of the investigation we decided on two categories of probable factors:

the technical factors:

- asymmetric tyre resistance (asymmetric pull resistance) like malfunctions of bearings, brakes
- nosewheel steering malfunction causing a deflection

the human factors:

- asymmetric tyre resistance due to inadvertent asymmetric braking

The preliminary report does not contain any facts, in particular it does not describe what happened, for example, which runway was used for departure, where and what speed the aircraft went off the runway (overran the end, veered left or right off the runway, ...), where the aircraft ended up, what damage it suffered, how many occupants were on the aircraft, and so on.

The statement contains a section "discussion", which however is telling the same as the conclusions, as does the "analysis" section. The analysis section permits to conclude however, that both FDR and CVR data were available to the investigation.

There is no trace of this investigation on the current BPEA website.
Incident Facts

Date of incident
Jul 29, 2013

Classification
Accident

Flight number
UNO-805

Aircraft Registration
UR-ARO

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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