As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3818 - ATB/LND GEAR - RETURNED DUE TO LANDING GEAR WOULD NOT RETRACT. CORRECTIVE ACTION: JACKED AIRCRAFT PER B737 AMM. PERFORMED MLG OPERATIONAL AND MANUAL EXTENSION SYSTEM TEST. OPS CHECK GOOD. PERFORMED MANUAL EXTENSION ACCESS DOOR SWITCH ADJUSTMENT CK. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (6567994).