What was found
ON APPROACH INTO YYZ RECEIVED FLAPS FAIL CAUTION MSG AT 20 DEG. EMERGENCY DECLARED, A/C LANDED SAFELY. REMOVED AND REPLACED LEFT BPSU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON APPROACH INTO YYZ RECEIVED FLAPS FAIL CAUTION MSG AT 20 DEG. EMERGENCY DECLARED, A/C LANDED SAFELY. REMOVED AND REPLACED LEFT BPSU.