As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLT 540 - AIRCRAFT WAS CLIMBING TO FL250 OUT OF PIT WHEN A BLEED FAULT 1 LIGHT ILLUMINATED. CAPTAIN DESCENDED TO FL240 AND TRIED TO RESET WITHOUT SUCCESS. FLIGHT RETURNED TO PIT WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED BLEED SYSTEM CHECKOUT AND FOUND NO DISCREPANCIES. (M)