Drainage failure floods MMIA temporary terminal, shuts power grid

Nigeria’s aviation gateway on Sunday suffered infrastructural breach after heavy downpour exposed engineering vulnerabilities at the Murtala Muhammed International Airport (MMIA), flooding the temporary international terminal.

The situation escalated when rising floodwaters breached the facility’s central utilities zone.

To prevent an electrical fire or grid failure, airport engineers executed an emergency power shutdown. The blackout plaunged the departure halls, check-in zones, and boarding gates into darkness, leaving airport authorities with no choice but to evacuate operations entirely.

The sudden shutdown forced the Federal Airports Authority of Nigeria (FAAN) to involve it emergency contingency protocols.

Airlines actively processing passengers including Air France-KLM, Ethiopian Airlines, and Fly Gabon had to be leave the flooded facility for another terminal.

FAAN managed to avert widespread flight cancellations by emergency-routing all displaced operations to Terminal Two (MMIA T2), the facility built with Chinese concession funding.

Speaking on the terminal’s collapse, Henry Agbebire, FAAN spokesperson shifted the blame away from the intensity of the rain, pointing instead to systemic blockages caused by the state-led airport remodeling works nearby.

“It was the ongoing construction works that compromised the drainage system around the terminal. For urgent operational reasons, we shifted the affected airlines to Terminal 2, and thankfully, the development did not lead to flight cancellations. We have mobilized engineering teams to correct the drainage flow immediately so this does not repeat itself,” Henry Agbebire, Spokesperson, FAAN said.

Industry observers note that the temporary facility’s drainage grid became bottlenecked by construction silt, old tires, and unmanaged runoff from the ongoing airport upgrade.

“When a single afternoon storm can compromise the electrical core of a nation’s flagship airport, it highlights a deep-seated issue with project coordination and facility maintenance. For an aviation sector currently trying to attract foreign public-private partnerships, Sunday’s terminal evacuation shows that the country’s airport infrastructure remains incredibly fragile,” a stakeholder who would not want his name mentioned said.