What was found
FLT 1519, BOS-SEA. RETURNED BACK TO BOS, EXCESSIVE CAB ALT, WARNING AT 25000FT, EMERGENCY DESCENT. SUPPLEMENTAL INFORMATION TO FOLLOW
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 1519, BOS-SEA. RETURNED BACK TO BOS, EXCESSIVE CAB ALT, WARNING AT 25000FT, EMERGENCY DESCENT. SUPPLEMENTAL INFORMATION TO FOLLOW