The Airplane's Low Pressure Warning

It's also unclear if the tires were checked for the pressure gauge after that date. The plane was 23 years old, which means that it would have been manufactured in 1968. When maintenance personnel told the flight coordinator that he needed to inflate a tire, he was taken to a support facility at the airport to get some nitrogen. But when he got there, he was told that all the nitrogen tanks were empty. It seems like something that would be more likely to exist now versus back then.