As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3897 -ATB- DUE TO LEFT ENGINE NOSE COWL T12 BLEED OVERPRESSURE DOOR OPEN. CORRECTIVE ACTION: PERFORMED LEFT ENGINE NOSE COWL ANTI-ICE DUCT BORESCOPE INSP. NO RUPTURED DUCTS. PERFORMED T12 ACCESS DOOR LATCH RELEASE TEST. LEFT ENGINE RELEASE TESTS ARE WITHIN AMM LIMITS. OPS CHECKS GOOD.