What was found
ON DEPARTURE, NOSE GEAR WOULD NOT RETRACT, AIR TURNBACK; CHECK VALVE BYPASSING NOSE WHEEL STEERING SYSTEM. REMOVED AND REPLACED CHECK VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON DEPARTURE, NOSE GEAR WOULD NOT RETRACT, AIR TURNBACK; CHECK VALVE BYPASSING NOSE WHEEL STEERING SYSTEM. REMOVED AND REPLACED CHECK VALVE.