What was found
AFTER GEAR RETRACTION, UNUSUAL NOISE HEARD, ECAM DISPLAYED LANDING GEAR DOOR UNLOCKED, LGCIU 1 AND 2 FAIL. GRAVITY EXTENDED GEAR SUCCESFULLY, UNEVENTFUL LANDING KLAS. EMERGENCY WAS DECLARED. REPLACED MISSING ACTUATOR BOLT AND WASHER PER AMM 32-31-16. DOOR OPS CHECK GOOD.