As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT T 1165/28 GEAR WOULD NOT RAISE AFTER TAKE OFF IN GEAR POSITION SYSTEM 1. TRIED SYSTEM 2 IAW OPERATION MANUAL VOLUME 1. GEAR WOULD NOT RAISE. RETURNED FOR LANDING, LANDED WITHOUT INCIDENT. REPLACED RT BOGIE SYSTEM 1 AND 2 SENSOR AND REPLACED TARGET ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)