On February
2, 2019, a chartered helicopter belonging to Caverton Helicopters conveying Osinbajo
and his team for a campaign in Kogi State suddenly crashed in Kabba, but all 12
people on board escaped unhurt.
The Accident
and Investigation Bureau (AIB) on Tuesday explained in details what led to the
crash of the helicopter conveying Vice President Yemi Osinbajo to a political
campaign in Kabba, Kogi State last year.
After over
one year of investigation, the AIB came up with its findings, saying that the
flight crew lost visual contact with the ground and external surroundings,
which led to the crash.
According to
the Commissioner of AIB, Akin Olateru, Onboard were 12 persons, including the
Vice President of the Federal Republic of Nigeria, his entourage, and three
crew members (Pilot, Co-pilot, and an Engineer).
He said the
flight crew stated that they sighted the intended landing area as a result of
the cloud of residual dust generated by the downwash of a Police helicopter,
saying that after sighting the football field, the flight crew approached with
the speed of 20ft to about a 100ft, and entered a hover to land.
“At about
50ft above ground level, a brownout set in. The flight crew lost visual contact
with the ground and external surroundings.
“The co-pilot
began radio altitude callouts “35, 30, 25, 20 and 15”. At about 14:34h, the
helicopter experienced a hard landing on the right main landing gear and rolled
over onto its right side. All persons on board were evacuated uninjured,” he
stated.
Olateru added
that the flight crew encountered a brownout condition during the hover to land,
which led to the loss of external visual references, spatial disorientation,
and loss of situational awareness, resulting in a mis-judgment of distance and
ground clearance, as the flight, the crew tried to control the helicopter’s
movements for landing.
He said the helicopter
landed hard and rolled over on its right side, stressing that inappropriate
landing technique used, non-adherence to company procedures for known or
anticipated brownout condition during landing and lack of risk assessment,
limited landing site preparation, and planning prior to commencement of the
flight.
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