What was found
(CAN) LANDING GEAR DID NOT RETRACT ON INITIAL ATTEMPT, GEAR UNLOCK LIGHT ON. LANDING GEAR CONTROL AND INTERFACE UNIT REPLACED, SYSTEM CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) LANDING GEAR DID NOT RETRACT ON INITIAL ATTEMPT, GEAR UNLOCK LIGHT ON. LANDING GEAR CONTROL AND INTERFACE UNIT REPLACED, SYSTEM CHECKED OK.