As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LT ENGINE UPPER COWL OPENED IN FLIGHT. AIRCRAFT LANDED WITHOUT INCIDENT. AIRCRAFT WAS FLYING THROUGH TURBULENCE WHEN THE COWL OPENED. DURING THE INSPECTION OF THE COWL, IT WAS FOUND THAT ALL 3 LATCHES WERE LOOSE. THE LATCHES WERE RE-ADJUSTED. (TC NR 20070321006)