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.
534 pieces in 199 part and color combinations, plus 4 minifigures.
The official piece count includes the 19 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 Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBlack ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studDark RedPart 28192Element 6267498×2
Pearl Titanium
2 pieces
Launcher, Plate Special 1 x 2 with Mini Blaster SquarePearl TitaniumPart 69754Element 6345952×2
Trans-Dark Blue
2 pieces
Projectile, ArrowTrans-Dark BluePart 80437Element 6514448 or 64178471 spare in the box×2
Bright Pink
1 piece
Plant, Leaves 4 x 3Bright PinkPart 2423Element 6329957×1
Dark Azure
1 piece
Tile Special Round 1 x 1 with Hollow BarDark AzurePart 20482Element 62237331 spare in the box×1
Sand Blue
1 piece
Animal, Stingray with Dark Purple Markings Spots PrintSand BluePart 67337pr0003Element 6430960×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 75577-1[No Color/Any Color]Part 10101665Element 6421614×1
Minifigures
4 figures
NeteyamMinifigure, checked as a whole figure×1
Ao'nungMinifigure, checked as a whole figure×1
SpiderMinifigure, checked as a whole figure×1
RDA 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.