The Accident Investigation Bureau (AIB) yesterday released the final report of the accidents involving Dana Airlines, Bristow Helicopters, OAS Helicopters (Nig) Limited and the Presidential Implementation Committee on Maritime Safety and Security (PICOMSS).
The reports were revealed by the Commissioner of the Accident Investigation Bureau, AIB, Engr Akin Olateru at the agency’s headquarters at Murtala Muhammed International Airport Ikeja, Lagos.
Unearthing the possible issues on the accident involving Dana Airlines, Boeing MD-83 Aircraft with registration 5N-RAM on 3rd June 2012 at Iju-Ishaga, Lagos State, at about 1545:00hrs, Engr Olateru stated that the possible causal factors includes: “engine number 1 lost power seventeen minutes into the flight, and thereafter on final approach, engine number 2 lost power and failed to respond to throttle movement on demand for increased power to sustain the aircraft in its flight configuration”.
Other possible causal factors as identified by the AIB include “the inappropriate omission of the use of the checklist, and the crew’s inability to appreciate the severity of the power-related problem; their subsequent failure to land at the nearest suitable airfield and lack of situation awareness, inappropriate decision making, and poor airmanship”.
On OAS Helicopters accident involving Ecuruiel A350B2 Helicopter with Registration 5N-BKA at Oke-Oba Hill, Ikonifin, Osun State on 29th July, 2011, the AIB boss stated that “non-adherence of the Pilot to Visual Flight Rules of clear-of cloud and obstacles while maintaining ground contact at all times led to Controlled Flight into Terrain (CFIT) are the major causal factor.
On the serious incident that involved Presidential Implementation Committee on Maritime Safety and Security (PICOMSS) with registration 5N-BKA at Benin Airport, Edo State on 5th July, 2012, the aviation agency stated that the casual factor has to do with “the decision of the crew to continue the glide approach despite repeated landing gear warnings with the power lever below 25% rather than initiating a Go-around” .
Contributory factor to the PICOMSS incident, according to AIB, include “the failure of the crew to recognize the landing gear warnings; no Standard Operating Procedure/Training Policy in place; the crew low hours and experience, coupled with the rostering of two pilots with same capability on a training flight and lack of Crew Resource Management (CRM) training.
On the incident involving Bristow Sikorsky S-92 with registration 5N-BKA at MMA Lagos, on 27th February, 2013, AIB attributed the ugly incident to the fact that “115v cable loom chafed and arced with hydraulic pipeline, puncturing it and causing a high pressure leak which ignited on contact with hot surface of the Right Hand heat exchanger, resulting in fire on the Upper Deck”.
It added other contributing factors to the Bristow’s incident, stressing that “the affectivity of the aircraft was excluded in the Alert Service Bulletin ASB No. 92-20-002A issued by the manufacturer; and that the Technical Directive TD-S92A-29-99 did not include Check/Inspection of the right hand side of the Upper Deck”.
AIB further gave recommendations on each of incidents. In the case of Dana Air, eight safety recommendations were made to forestall future occurrences.
The safety recommendations previously made in the Preliminary Report published on 5th September 2012 were four in number, wherein three were targeted to Dana Airlines and all were accepted and closed. One was to NCAA, accepted and closed.
However, Bristow Helicopters Nigeria Limited issued a Technical Directive, TD-S92A-29-104 following the incident with the subject: “Inspect LH and RH MGB, and Upper Deck Heat Exchanger Area, All 1, 2, and 3 system Hydraulic lines, Clamping all Components, and wiring Looms for any damage, chafing, or wear”.
In his closing remarks, Engr Olateru who pointed out the cost of investigating an accident or serious incident is very huge, advised stakeholders to come up with a seminar that will involve the entire members to discuss these issues.
Meanwhile, Dana Air has reassured its numerous passengers that the airline is fully committed to safety and comfort at all times.
Following the release of the final report of the June 3, 2012 Accident, Dana Airline in an official statement issued yesterday and signed by the Media/Communications Manager, Kingsley Ezenwa stated: “We wish to reassure our guests of our total commitment to their safety and comfort onboard our flights” .