As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE-OFF AND GEAR RETRACTION, GEAR UNLOCK ANNUNCIATOR REMAINED ON, AS DID HYDRAULIC PRESSURE. IAW CHECKLIST CYCLED HYDRAULIC CONTROL CIRCUIT BREAKER. BOTH ANNUNCIATORS WENT OUT AND GEAR EXTENDED NORMALLY. MAINTENANCE REPLACED THE HYDRAULIC MANIFOLD. A SUCCESSFUL OPS CHECK WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVCICE.