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.
4,080 pieces in 516 part and color combinations, plus 11 minifigures.
The official piece count includes the 44 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.
Plate 1 x 2Red ×6Trans-Red ×6Trans-Red is see-through: hold the piece up to a light.
Plate 1 x 2Yellow ×12Trans-Yellow ×2Trans-Yellow is see-through: hold the piece up to a light.
Brick 1 x 1Tan ×4Dark Tan ×8Tan is lighter than Dark Tan.
Plate 2 x 3Tan ×3Dark Tan ×9Tan is lighter than Dark Tan.
Tile 1 x 2 with GrooveTan ×1Dark Tan ×10Tan is lighter than Dark Tan.
Plate 1 x 1Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
12 more look-alike pairs
Plate 1 x 2Black ×12Dark Blue ×8Black is yellower and darker than Dark Blue.
Plate 1 x 4Black ×1Dark Blue ×8Black is yellower and darker than Dark Blue.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate Special 1 x 4 with 2 Studs, 3 Bottom TubesBlack ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Tile 1 x 3Black ×2Dark Blue ×8Black is yellower and darker than Dark Blue.
Tile 1 x 6 with GrooveBlack ×3Dark Blue ×10Black is yellower and darker than Dark Blue.
Brick 1 x 2Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 2Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 1Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Window 1 x 2 x 2 CastleLight Bluish GrayPart 90195Element 4642934 or 4583689×2
Door 1 x 3 x 1 LeftWhitePart 3822Element 4527637 or 4161547×2
Door 1 x 3 x 1 RightWhitePart 3821Element 4537987 or 4527638×2
String, Bands and Reels
4 pieces
Rubber Belt Small [15mm ID] [Round Cross Section]WhitePart 85543Element 6699001 or 4580665×4
Minifig Heads
3 pieces
Minifig Head [Plain] [Hollow Stud]Bright PinkPart 3626cElement 6229128×2
Minifig Head [Plain] [Hollow Stud]RedPart 3626cElement 4173441×1
Animals / Creatures
2 pieces
Animal, FrogGreenPart 33320Element 6171101 or 4157270×1
Animal, Bird, Seagull with Bright Light Orange Beak and Black and Light Bluish Gray Wings PrintWhitePart 12891pr0002Element 6217369 or 6208794×1
Containers
2 pieces
Container Box 2 x 2 x 2 - Top OpeningReddish BrownPart 61780Element 4520638×2
Supports, Girders and Cranes
2 pieces
Support Round 2 x 2 x 2 Stand with Reinforced UndersideDark Bluish GrayPart 19798Element 6106283×2
Technic Beams Special
2 pieces
Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-ReducedBlackPart 33299bElement 4563044×2
Tubes and Hoses
2 pieces
Hose Rigid 3mm D. 7L / 5.6cmBlackPart 75c07Element 6429334 or 6039885×2
Minifig Headwear
1 piece
Hat / Cap Short Curved PeakOrangePart 86035Element 4583147×1
Minifig Shields, Weapons, & Tools
1 piece
Weapon LanceFlat SilverPart 3849Element 4611884×1
Rock
1 piece
Rock 1 1/3 x 1 1/3 x 1Pearl GoldPart 35646Element 6207259×1
Stickers
1 piece
Sticker Sheet for Set 10261-1[No Color/Any Color]Part 39356Element 6234010×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Windscreens and Fuselage
1 piece
Windscreen 4 x 4 x 1 2/3 Canopy Half Sphere with HandleTrans-ClearPart 18990Element 6514145 or 6244781×1
Minifigures
11 figures
Bright Light Blue Torso, Dark Purple Legs, Dark Orange HairMinifigure, checked as a whole figure×1
Green Torso, Dark Tan Legs, Tan HairMinifigure, checked as a whole figure×1
Tan Torso Sweater, Sand Blue Legs, Light Bluish Grey HairMinifigure, checked as a whole figure×1
Bright Pink, Medium Azure, White HairMinifigure, checked as a whole figure×1
Kid - White Torso, Medium Blue Legs, Black HairMinifigure, checked as a whole figure×1
White Torso, Dark Blue Legs, Black HairMinifigure, checked as a whole figure×1
Yellow Torso, Blue Legs, Reddish Brown HairMinifigure, checked as a whole figure×1
Yellow Torso, Blue Legs, Dark Brown HairMinifigure, checked as a whole figure×1
Dark Azure Torso, White Legs, Medium Nougat HairMinifigure, checked as a whole figure×1
White Torso, Medium Azure Legs, Tan HairMinifigure, checked as a whole figure×1
Light Bluish Grey Torso, Dark Orange Legs, Dark Brown HairMinifigure, 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.