AUSTIN (KXAN) — Tina Cunningham waited in her car Tuesday, as she does everyday, to pick her kids up from Connally High School. But Monday she saw something unusual.

“Big cloud of black smoke and fire trucks and  other emergency vehicles were going that way towards the back of the school,” said Cunningham.

That smoke was billowing from the front of a Pflugerville ISD school bus that had burst into flames. A driver and a student were able to escape without being injured.

Cunningham now wants all of the district’s school buses to be inspected.

“I think they need to do that. And I also think they need to have seat belts,” said Cunningham.

The district referred KXAN to the company they contract bus services out to, Durham School Services. Questions on specifics on maintenance procedures and protocols were not answered, other than stating they exceed federal standards. Durham School Services said in a statement to KXAN their drivers also do a multi-point inspection every day, before and after each route.

The cause of the fire is currently under investigation and Durham School Services says the bus manufacturer is helping them investigate the cause.

With little details coming from Pflugerville ISD and Durham School Services, we reached out to Central Texas’ largest school district, Austin ISD. The Head of the transportation department said they follow a rigorous preventative maintenance schedule.

The district checks the buses every 3,000 miles. Maintenance crews look at the tires, oil and the engine. Each school bus covers between 10,000 and 20,000 miles a year. The district also retires the buses after 14 years or 250,000 miles.

“We have digital cameras, G.P.S, we have sophisticated transportation scheduling software and maintenance software to make sure our routes are created safely and efficiently,” said AISD Director of Transportation Kris Hafezi.

There are currently 507 school buses in AISD’s fleet, which has an average age of 7.6 years old.