What was found
ON FINAL APPROACH, TRIED TO DEPLOY LANDING GEAR., LOST LGCIU 1 AND 2. GEAR WOULD NOT EXTEND, CREW MANUALLY DEPLOYED GEAR AND GEAR EXTENDED. AIRCRAFT LANDED WITHOUT INCIDENT. ACCOMPLISHED LANDING GEAR EXTENSION AND RETRACTION TEST PER AMM 32-31-00-720-002-A, NO FAULTS FOUND. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECKS. AIRCRAFT WAS GROUNDED.