The reports includes the Nigerian College of Aviation Technology (NCAT) Tampico TB9 aircraft with registration 5N-CBC, which occurred at Zaria Aerodrome, Kaduna, Nigeria on the October 6, 2008 and accident involving Nigeria Police Force (NPF) Bell 427 helicopter with registration 5N-POL at Kabong, Jos South LGA, Plateau State, Nigeria on  March 14, 2012 and an organisational bulletin on the ground collision incident involving two aircraft belonging to Air Peace Airlines  B737-500 with registration 5N-BQR and B737-300 with registration 5N-BQP, which occurred close to Bay 4 of the Domestic Terminal 1, Murtala Muhammed Airport(MMA),Lagos, Nigeria on April 20, 2017.

The NCAT Tampico TB9 aircraft accident report is coming nine years after the accident happened in Zaria Aerodrome, Kaduna,

Speaking at a media briefing organised by the agency to release the reports, the AIB Commissioner, Engr. Akin Olateru, said that the probable causal factor of the NCAT Tampico aircraft in 2008 according to the agency’s investigation was inability of the student pilot to maintain directional control of the aircraft after touchdown.

The report read by Olateru said that the contributory factors are that the student pilot lost concentration while retracting the flap and trimming the aircraft during the landing roll preparatory to the next take-off,the student was fatigued as he had done six landings with the instructor and four solo landings and the increased workload due to the “un-gated” flap control knob assembly.

On the safety recommendations  made by the agency in its report, Olateru said that the agency recommended that BEA (Bureau d’Enquêtes et d’Analyses pour la sécurité de lavation civile),France investigation agency should propose to the aircraft manufacturer;SOCATA of France to incorporate a “gate detent” position in the flap control knob assembly, as this will make proper flap selections easier during aircraft operations.

He said that the agency also recommended that NCAT should ensure that Flying Instructors checking out students on solo flight must at all times be at the Control Tower to monitor the progress of the flight and that NCAT should procure equipment and train relevant personnel to conduct toxicological examination in its Aero Medical facility.

The report added that the Nigerian Civil Aviation Authority(NCAA) accepted the recommendation.

On the accident involving Nigeria Police Force (NPF) Bell 427 helicopter with registration 5N-POL at Kabong, Jos South LGA, Plateau State, Nigeria on March 14, 2012, Bolster stated that the investigation probable causal factors could not be conclusively decided but the investigation revealed series of discrepancies and non-compliance with Nigerian Civil Aviation Regulation(NCARs).

He posited that investigation showed that the pilot’s medical had expired as at the time of accident, simulator re-currency had expired as at the time of accident.

The report also said that the co-pilot was not type rated on the helicopter (Bell 427) and that the engineer that released the aircraft prior to the flight had no type training and type rating on the aircraft type.

Olateru said that the agency made  three the safety recommendations, which include that  NPF Air-Wing should provide the proper funding, conducive working environment, develop and implement a robust training programme for its technical/operational personnel, with adequate supervision and approved equipment to enhance safety, that NCAA should ensure that NPF Air-Wing complies with its Approved Maintenance Organisation(AMO)requirements and that NCAA and Department of Petroleum Resources (DPR) should launch an independent inquiry into aviation fuel quality in Nigeria.

The agency’s final report added that the resulting report should focus on the vulnerability and risk of each step in the distribution process, adding that this should yield firmer regulatory oversight mechanism that ensures international quality of aviation fuels used in Nigeria.

NPF, the AIB stated had accepted the report, adding that on training, “The Police pilots and engineers have been type-rated on the police fleet despite the inadequate funding from the government appropriation while many are still on the waiting list to be type-rated.”

On AMO, Olateru stated that the Police Air-Wing accepted the safety recommendation and that the Police Air-Wing had been able to obtain from the NCAA a valid AMO in compliance with the regulation.”

He also said that NCAA’s accepted the safety recommendation of the agency

Recalled that in 2012, the Deputy Inspector General of Police (DIG) in-charge of Operations, Mr. John Haruna and three others were killed, when a police helicopter, crashed into buildings in Kabong area of Jos, the state capital, minutes after take-off.

Speaking on the ground collision between two Air Peace aircraft, the agency’s bulletin stated that B737-500 with registration 5N-BQR and a stationary Boeing 737-300 with registration 5N-BQP. 5N-BQR was attempting to taxi between 5N-BQPand a Boeing 737-700 aircraft with registration 5N-MJJ belonging to Arik Airlines Nigeria Limited, which was boarding passengers at Bay 5 of the “Domestic Terminal 1 (DT1)” apron at the time of the incident.

According to the report, “Various factors contributed to the incident: the decision of the Captain to reposition the aircraft without requesting for a push-back, maneuvering the aircraft without the aid of Marshallers and instead relying on the company’s engineers who are inexperienced wing walkers; the decision of the crew to taxi the aircraft without properly assessing the maneuverability of the aircraft at the parking bay; the non-availability of proper apron markings and Marshallers; the presence of cautionary cones at strategic areas where repair work on the apron was awaiting cure. The limited maneuvering space between 5N-BQP and 5N-MJJalso contributed to the incident.

The report recommended that FAAN should engage more Marshallers, and ensure adequate training and retraining, establish a quasi Apron Control Room at the Domestic Terminal and  provide all necessary Personal Protective Equipment and spares for Marshallers and other relevant personnel.

The agency in its bulletin recommendation that NCAA should ensure that proper regulatory oversight is carried out on operators using the General Aviation Terminal (GAT).