B190, vicinity Bebi south eastern Nigeria, 2008

B190, vicinity Bebi south eastern Nigeria, 2008

Summary

On 15 March 2008, a Beech 1900D on a non-revenue positioning flight to a private airstrip in mountainous terrain flown by an inadequately-briefed crew without sufficient guidance or previous relevant experience impacted terrain under power whilst trying to locate the destination visually after failing to respond to a series of GPWS Alerts and a final PULL UP Warning. Whilst attributing the accident to the crew, the Investigation also found a range of contributory deficiencies in respect of the Operator, official charting and ATS provision and additional deficiencies in the conduct of the unsuccessful SAR activity after the aircraft became overdue.

Description

On 15 March 2008, a BEECH 1900D (5N-JAH) being operated by Wings Aviation on a revenue positioning flight from Lagos to Bebi as TWD8300 went missing in mountainous terrain near to its intended destination in daylight hours. SAR activity began the same day and continued for a week but when it failed to locate the aircraft, it was called off. The wreckage was eventually discovered by chance six months later in the vicinity of the destination airstrip. It was apparent that the impact had been non survivable for the three occupants and that there had been a post-crash fire.

Investigation

An Investigation was carried out by the Nigerian Accident Investigation Bureau (AIB).

Progress was limited until the airplane wreckage was eventually found by local hunters on 30 August 2008 about 5nm south west of Bebi airstrip in hilly terrain at an altitude of approximately 3200 feet. It was spread over a sizeable area in a wooded valley. Investigators visited the site and recovered both the FDR and CVR which were taken to the UK AAIB and successfully downloaded. Since both recorders had sustained impact and severe fire damage, data could not be extracted from either in the normal manner and alternative techniques were employed.

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