USA Air tanker crash highlights age of California's firefighting aircraft (+video)

The S2-T tankers, like the one that crashed Tuesday, are valued as firefighting workhorses. But they have come under scrutiny in recent years because they are 50 years old – and in some cases, older.

By , Staff writer

Noah Berger/Reuters/FILE

[Editor's note: This story has been updated to reflect the correct source of a study, which was done by EcoWest.org.]