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.
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.
Tile Round 1 x 1 Half CircleRed ×16Trans-Red ×2Trans-Red is see-through: hold the piece up to a light.
Brick Curved 2 x 1 No Studs [1/2 Bow]Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 1Black ×5Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 12Black ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×2Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Plate 1 x 5Black ×6Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
2 more look-alike pairs
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Black ×5Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 8 with GrooveBlack ×4Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
LEGO's request form asks for the set number (11380) and each piece's element ID, both listed above.
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Clear every mark for this set?
Piece checklist
Red
339 pieces
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]RedPart 3484Element 6439048×3
Bar 3LRedPart 87994Element 62750801 spare in the box×13
Bracket 1 x 1 - 1 x 2RedPart 79389Element 6435047×2
Bracket 1 x 2 - 2 x 2 InvertedRedPart 99207Element 6001806×1
Brick 1 x 6RedPart 3009Element 300921×2
Brick Curved 1 x 1 x 2/3 Double Curved Top, No StudsRedPart 49307Element 6278441×6
Brick Curved 1 x 4 x 2/3 Double, No StudsRedPart 79756Element 6534946×6
Brick Curved 2 x 1 No Studs [1/2 Bow]RedPart 11477Element 6029946×4
Brick Curved 2 x 2 x 2/3RedPart 15068Element 6105976×30
Brick Curved Inverted 2 x 1RedPart 24201Element 6186398×2
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)RedPart 54200Element 5074621 or 45043791 spare in the box×2
Brick Wedged 3 x 3 FacetRedPart 2462Element 6598628 or 246221×4
Brick Wedged, Curved 2 x 1 with Stud Notch LeftRedPart 29120Element 6177505×1
Brick Wedged, Curved 2 x 1 with Stud Notch RightRedPart 29119Element 6177507×1
Brick Wedged, Curved 2 x 2 with Stud Notch LeftRedPart 5095Element 6507845 or 6477762×1
Brick Wedged, Curved 2 x 2 with Stud Notch RightRedPart 5093Element 6513907 or 6477758×1
Plate 1 x 1RedPart 3024Element 3024211 spare in the box×4
Plate 1 x 1 x 2/3 with Open StudRedPart 86996Element 6397571×1
Plate 1 x 10RedPart 4477Element 447721×10
Plate 1 x 3RedPart 3623Element 362321×5
Plate 1 x 5RedPart 78329Element 6371582×3
Plate 1 x 8RedPart 3460Element 346021×4
Plate 2 x 2RedPart 3022Element 4613974 or 302221×2
Plate 2 x 3RedPart 3021Element 302121×2
Plate Round 1 x 1 with Open StudRedPart 85861Element 62234271 spare in the box×4
Plate Special 1 x 2 Rounded with 2 Open StudsRedPart 35480Element 6210269×22
Plate Special 1 x 2 with Handle on End [Closed Ends]RedPart 60478Element 4515365×3
Plate Special 1 x 3 Rounded with 3 Open StudsRedPart 77850Element 6598629×21
Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper)RedPart 34103Element 6251410×2
Plate Special 1 x 4 Rounded with 2 Open StudsRedPart 77845Element 6480856×2
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]RedPart 41740Element 6256923×4
Plate 1 x 1BluePart 3024Element 3024231 spare in the box×1
Plate 1 x 2BluePart 3023Element 302323×3
Plate 1 x 4BluePart 3710Element 371023×2
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×2
Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotBluePart 42924Element 6299413×2
White
9 pieces
Bar 2L with Stop in CenterWhitePart 78258Element 63576801 spare in the box×1
Plate 1 x 12WhitePart 60479Element 6552130 or 6548269×3
Technic Brick 1 x 8 [7 Pin Holes]WhitePart 3702Element 4582543 or 370201×1
Technic Pin 1/2 without Friction RidgesWhitePart 4274Element 6552190 or 63880181 spare in the box×4
Tan
5 pieces
Technic Axle 4 with Centre StopTanPart 99008Element 4666999×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×2
Technic Pin 3/4TanPart 32002Element 6663097 or 60139381 spare in the box×1
Trans-Red
3 pieces
Tile 1 x 1 with GrooveTrans-RedPart 3070bElement 6581817 or 62542481 spare in the box×1
Tile Round 1 x 1 Half CircleTrans-RedPart 24246Element 6507960 or 62640331 spare in the boxAlso in Red×2
Dark Red
1 piece
Bracket 1 x 2 - 2 x 2Dark RedPart 44728Element 6267486×1
Orange
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Trans-Light Blue
1 piece
Brick Round 2 x 2 with Axle HoleTrans-Light BluePart 3941Element 6514282 or 6273153×1
Yellow
1 piece
Technic Axle 7YellowPart 44294Element 6130009×1
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.