Emmanuel Rodriguez, the terminals duty manager, said duty manager for engineering Manuel Wong noticed smoke and immediately called for firefighters.
Very little of the smoke reached the lower floors where the terminal counters were located but did not cause concern among travelers. Two flights that were boarding that time left on schedule.
Firefighters said the smoke originated from the fans insulation, which overheated. The ventilation fan is one of several that are part of the terminals air conditioning system that recycles air in the building.
"The firemen found the smoldering ember and put it out. But otherwise there was no major damage or panic among the passengers below," Rodriguez said. Rainier Allan Ronda