Benin Runway Incident Exposes Safety Gaps as NSIB Issues Fresh Recommendations
The Nigerian Safety Investigation Bureau (NSIB) has identified several safety concerns at the Oba Akenzua II Airport in Benin City following its preliminary investigation into the runway excursion involving an Enugu Air aircraft in July.
The bureau said its findings have raised concerns about the runway-end environment, the line of sight from the control tower and the availability of meteorological information at the airport.
The findings were contained in a preliminary report released by the NSIB on Friday, August 21, 2026. The bureau subsequently issued four immediate safety recommendations to the Nigerian Civil Aviation Authority (NCAA), the Federal Airports Authority of Nigeria (FAAN) and the Nigerian Meteorological Agency (NiMet).
What Happened at Benin Airport?
The incident occurred on July 23, 2026, when an Embraer ERJ 170-100LR aircraft operated by Enugu Air as Flight ENU4264 was landing at Benin Airport.
The aircraft, registered as 5N-ENR, was operating from Murtala Muhammed International Airport, Lagos, to Benin.
There were 63 passengers and five crew members on board.
After landing on Runway 05 at about 2:55 p.m., the aircraft continued beyond the end of the runway into an unpaved area. It subsequently struck approach-lighting installations and two fixed concrete structures associated with a decommissioned localiser installation.
All 68 people on board were safely evacuated using the aircraft’s emergency escape slides, and no injuries were reported.
The incident was subsequently classified as a runway excursion, rather than a crash involving casualties.
Weather Conditions Raised Questions
The NSIB’s preliminary findings also highlighted the weather conditions during the aircraft’s approach.
According to the report, the flight crew had raised concerns about rain around Benin Airport during the approach.
The control tower later advised that conditions on the approach to Runway 23 appeared more favourable. However, the crew proceeded with an RNAV approach to Runway 05.
At about 2:48 p.m., the tower informed the crew that visibility was approximately 1,500 metres in moderate rain.
The aircraft was subsequently cleared to land on Runway 05 and the crew was warned that the runway surface was wet.
However, the NSIB stressed that its preliminary report does not establish that any single factor caused the runway excursion.
The investigation remains ongoing, with investigators expected to conduct additional technical analysis before reaching final conclusions.
NSIB Flags Runway-End Environment
One of the major areas of concern identified by the safety bureau is the environment beyond the end of the runway.
The aircraft travelled beyond the paved runway surface and struck approach-lighting equipment and fixed concrete structures connected to an old localiser installation.
The finding has prompted the NSIB to recommend measures aimed at improving safety around the runway-end area.
Runway-end safety is important because aircraft that overrun a runway can travel beyond the paved surface at considerable speed. The presence, location and design of obstacles in such areas can therefore influence the severity of an accident.
The NSIB’s recommendations are intended to address the safety risks identified during its investigation and reduce the possibility of similar occurrences.
Control Tower Visibility Also Under Review
The bureau also raised concerns about the line of sight available from the airport’s control tower.
Effective visibility from an air traffic control tower is important because controllers need to maintain appropriate visual awareness of aircraft movements and conditions around the airport.
The NSIB’s identification of tower visibility as an area requiring attention means aviation authorities will need to examine whether existing infrastructure provides adequate operational visibility under different conditions.
The finding does not, however, establish that inadequate tower visibility caused the Enugu Air incident.
Meteorological Information
Another area highlighted by the investigation is the availability of meteorological information.
Weather conditions can be particularly important during aircraft approaches and landings, especially when rain affects visibility and runway surface conditions.
The NSIB’s recommendation involving meteorological information places attention on the systems used to provide weather data to flight crews and air traffic controllers.
The objective is to ensure that relevant and timely information is available to support safe decision-making during flight operations.
Four Immediate Safety Recommendations
The NSIB issued four immediate recommendations, numbered A-2026-039 to A-2026-042, to relevant aviation agencies.
The recommendations focus on addressing the safety concerns identified around the airport’s runway-end environment, control tower visibility and meteorological information.
The recommendations were directed to the NCAA, FAAN and NiMet, reflecting the different responsibilities of aviation regulators, airport operators and meteorological authorities.
The bureau said the measures are intended to reduce safety risks while the wider investigation continues.
Investigation Is Not About Assigning Blame
The NSIB has emphasised that the preliminary report should not be interpreted as a final determination of responsibility.
According to the bureau, its investigation is being conducted primarily to establish facts and identify measures that can prevent future accidents and serious incidents.
The preliminary findings may therefore change as investigators obtain additional evidence and conduct further technical analysis.
The bureau has urged members of the public and aviation stakeholders to avoid drawing definitive conclusions before the final report is released.
Benin Airport Was Temporarily Closed
The July incident also had wider consequences for air travellers.
Following the occurrence, the Federal Airports Authority of Nigeria temporarily closed the runway to facilitate the recovery of the aircraft and conduct safety assessments.
The closure disrupted scheduled flights to and from Benin, forcing airlines to cancel or adjust some services.
The runway subsequently reopened after 12 days, with flight operations gradually returning to normal.
The reopening, however, did not mean that the NSIB investigation had ended.
Airport operations can resume after authorities establish that the facility is safe for use while an independent investigation continues separately to determine what happened and what lessons can be learned.
Focus Shifts to Airport Safety
The preliminary findings have shifted some attention from the aircraft and flight crew to the wider environment supporting flight operations.
While the incident resulted in no reported injuries, the NSIB’s findings indicate that aviation safety involves more than the condition and operation of an aircraft.
Runway design, runway-end protection, navigation infrastructure, control-tower visibility and accurate weather information can all contribute to the overall safety environment.
For aviation authorities, the recommendations provide an opportunity to review the facilities at Benin Airport and address any identified risks.
The final NSIB report is expected to provide further details after investigators complete their technical work.
Until then, the bureau has cautioned against treating the preliminary findings as the final explanation for the runway excursion.
The Benin incident ultimately ended without fatalities or reported injuries, but the safety concerns identified during the investigation could have wider implications for airport infrastructure and operational standards.
The implementation of the recommendations by the relevant agencies will therefore be closely watched as Nigeria continues efforts to strengthen aviation safety and prevent similar runway incidents in the future.
This report is based on the NSIB’s preliminary findings and publicly reported information. The investigation remains ongoing, and the preliminary observations should not be interpreted as final conclusions on the cause or responsibility for the incident.