Accident Investigation Bureau (AIB), has released reports for four accidents and incidents, which occurred between 2009 and 2015 in the Nigerian aviation industry, making 10 reports released by the agency in 2017.
This is as the agency said that plans have reached an advanced stage to release other 17 accidents and serious incidents report by 2018.
Engr. Akin Olateru the Commissioner, AIB, released the reports of the accidents and serious incidents yesterday at its headquarters at the Murtala Muhammed International Airport (MMIA), Lagos.
AIB also released 12 safety recommendations to the civil aviation authority for the sub-sector’s improvement.
Among the reports released were that of the Boeing 737-500 aircraft with the registration number 5N-BLE belonging to Aero Contractors and a trainee aircraft of the Nigerian College of Aviation Technology (NCAT), Zaria with the registration number 5N-BZA.
Others were Gitto Construczioni Generalli Bell Helicopter, 5N-BLC and Diamond 42 aircraft of the International Aviation College (IAC) with the registration number 5N-BNH. The aircraft before the serious incident had 108 passengers and five crewmembers on-board.
The Aero Contractors serious incident, which occurred on June 5, 2015 he, said was revealed to the agency through media reports.
He said: “AIB was not officially notified of the incident, but we came to know of the serious incident through the reports in the media. On 5th June, 2015, Aero Contractors Company of Nigeria Ltd. scheduled commercial flight NIG181, a Boeing 737-500 aircraft with registration number 5N-BLE from Lagos to Kaduna, took off at 1828hrs with 108 passengers and five crew on board. The First Officer was the pilot flying. The flight operated on an Instrument Flight Rules (IFR).
“The Air Traffic Control (ATC) cleared the aircraft for take-off and to climb and maintain Flight Level (FL) 350. Normal cabin rate of climb (300ft/min) was observed during the initial climb. During climb at approximately 23 minutes, the cabin altitude warning horn sounded and the cabin altitude warning light came on.”
On the NCAT trainee aircraft, which occurred on May 21, 2013, Olateru explained that the bureau was only informed of the incident almost a month later, June 16, 2013.
He explained that on hearing of the incident, investigators were dispatched to carry out a preliminary investigation on the occurrence.
He declared that the incident occurred at t5he Nnamdi Azikiwe International Airport (NAIA) as the trainee aircraft departed the airport to Zaria aerodrome with two persons on-board; pilot and observer.
“The occupants of the aircraft sustained minor injuries. Instrument Meteorological Conditions (IMC) prevailed at the time of the occurrence and the flight was operating on an Instrument Flight Rules (IFR) flight plan.”
Olateru also reeled out the accident involving Gitto Construczioni Generali Nigeria Limited Bell 407 helicopter with registration 5N-BIC at Uyo Airport, Akwa Ibom State, Nigeria on October 21, 2009.
AIB he said was notified by the Nigerian Civil Aviation Authority (NCAA) of the accident, the next day at about 1200hrs.
According to the report, the helicopter had departed Calabar to Port Harcourt at about 1230hrs on a Visual Flight Rules (VFR) positioning flight with the pilot and an engineer on board.
According to the pilot, a few minutes after departing Calabar for Port Harcourt, the transmission chip detector indication was noticed at a location close to Gitto Uyo State.
He maintained that the pilot made a radio call to Eket of the intention to divert to Uyo due technical and on landing at Gitto site, Uyo, the Maintenance Engineer reported that maintenance inspection was carried out on the transmission oil system.
The three chip detector plugs on the transmission were checked and found satisfactory, stressing that an engine ground run was carried out and all indications were found normal.