Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
551 pieces in 192 part and color combinations, plus 2 minifigures.
The official piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Brick Curved Inverted 2 x 2 x 2/3Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Wedged, Curved 2 x 1 with Stud Notch LeftBlack ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Wedged, Curved 2 x 1 with Stud Notch RightBlack ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick 2 x 2BlackPart 3003Element 4103587 or 300326×1
Brick 1 x 1Dark Bluish GrayPart 3005Element 4211098×1
Minifig Shields, Weapons, & Tools
2 pieces
Weapon Sword (Uruk-hai)Pearl TitaniumPart 10050Element 6264145 or 6002758×1
Weapon Bow and Arrow LongReddish BrownPart 93231Element 6444488 or 4610041×1
Minifig Accessories
1 piece
Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3BlackPart 64644Element 4538456×1
Panels
1 piece
Panel 1 x 2 x 1 [Rounded Corners]Trans-Light BluePart 4865bElement 6514122 or 6246890×1
Stickers
1 piece
Sticker Sheet for Set 75571-1[No Color/Any Color]Part 10100688Element 6409126×1
Windscreens and Fuselage
1 piece
Windscreen 4 x 4 x 4 2/3 with HandleTrans-BrownPart 11289Element 6514340 or 6280337×1
Minifigures
2 figures
Neytiri - War PaintMinifigure, checked as a whole figure×1
Miles QuaritchMinifigure, checked as a whole figure×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.