The Manila International Airport Authority (MIAA) provided reassurance to the public on Sunday that the maintenance work for improving the electrical systems of NAIA Terminal 3 was carefully planned to ensure uninterrupted operations, especially during peak hours.

Flight operations won't be disrupted in any way by the electrical upgrade work which is taking place between 2 April and 28 May 2024, nor will it hamper the processing of passengers and baggage.

During the day, most areas of the terminal building will have air conditioning and light, GM Eric Ines said.

The airport chief also explained that these electrical upgrade activities generally involve the replacement of parts or components of the medium circuit breakers across eight different electrical substations at NAIA Terminal 3.

The schedule of electrical upgrades has been timed after the last flight and away from peak hours of operations. Based on the schedule, replacement activities will only take a short 15 minutes up to a maximum of three hours but will not extend into the departure or arrival times of the first flight of the day. The window hours for maintenance work will be from 12:01 a.m. to 3 a.m.

The southern portion of the terminal will be affected. There will be an observable reduction in air conditioning and lighting in the first through fourth floor hallways and lobbies, stairwells, some second and third floor offices, surface parking, and multi-level parking. The escalators and elevators on this side of the terminal can stop working during maintenance hours.

Ines added that all Terminal 3 gensets are on standby for any contingency during the conduct of maintenance works.