What was found
SFO - LANDING GEAR WILL NOT RETRACT. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. MAINTENANCE RESET LANDING GEAR RELEASE VALVE. AIRCRAFT RETURNED TO SERVICE. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SFO - LANDING GEAR WILL NOT RETRACT. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. MAINTENANCE RESET LANDING GEAR RELEASE VALVE. AIRCRAFT RETURNED TO SERVICE. (M)