B747-400
Maintenance Airframe; Maintenance Powerplant
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Other / Unknown
General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
Part of Number 6 spoiler departed Aircraft X at some point between ZZZ and ZZZZ. Some damage to L/H inboard fore flap; spoiler beyond repair. Discovered upon walk around inspection after landing ZZZZ. Aircraft X went A.O.G.
Maintenance Technician discovered part of spoiler missing on B747-400 during post flight inspection.