HOUSTON – The Houston Fire Department's fleet issues continue to worsen this week after an aging fire truck broke down and caught fire.

The incident happened during Wednesday's massive warehouse fire (link) in Northwest Houston.

"In this instance the fire truck that is used to mitigate emergency was now the emergency," Patrick Lancton, president of the Houston Professional Fire Fighters Association, said.

Nobody appeared to be injured as a result of the breakdown. However, a man was injured in the fire before crews arrived at the scene.

Engine 77, a 2005 model pumper, is at the end of its service life according to Houston Fire Department Assistant Chief Ruy Lozano.

"Anytime an engine quits pumping and we have firefighters inside, that's a danger," Lozano said, speaking generally.

There were no firefighters inside the burning warehouse Wednesday when the truck quit and caught fire.

The exact cause of the fire has not been determined.

Channel 2 Investigates has focused on deficiencies with the Houston Fire Department fleet, a situation made worse by Harvey.

The storm totaled an additional 28 apparatus.

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