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.
1,132 pieces in 404 part and color combinations, plus 8 minifigures.
LEGO counts 1,171 pieces. This inventory comes from a separate parts catalog and lists 1,181, including the 49 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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 2Orange ×4Trans-Orange ×6Trans-Orange is see-through: hold the piece up to a light.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Reddish Brown ×1Dark Brown ×2Reddish Brown is redder and lighter than Dark Brown.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Black ×6Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]Black ×10Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Brick 1 x 2 [1 Pin Hole]LimePart 3700Element 6132372×1
Yellowish Green
2 pieces
Animal, Fish [Hollow Stud Mouth]Yellowish GreenPart 64648Element 6291414×1
Minifig Head Special, Skull with Black Eyes, Mouth with White FangsYellowish GreenPart 43693pr0005Element 6290493×1
[No Color/Any Color]
2 pieces
Game Board, Ninjago: Master of the Mountain[No Color/Any Color]Part 6325698Element 6325698×1
Sticker Sheet for Set 71722-1[No Color/Any Color]Part 67961Element 6300567×1
Trans-Dark Pink
1 piece
Equipment Magic WandTrans-Dark PinkPart 6124Element 6245512 or 44997101 spare in the box×1
Trans-Green
1 piece
Rock 1 x 1 Jewel / Gem 24 FacetTrans-GreenPart 30153Element 6513970 or 62477881 spare in the box×1
Trans-Light Blue
1 piece
Brick 1 x 1Trans-Light BluePart 3005Element 6514210 or 6240551×1
Minifigures
8 figures
Lloyd / Hero LloydMinifigure, checked as a whole figure×1
MurtMinifigure, checked as a whole figure×1
Awakened WarriorMinifigure, checked as a whole figure×1
GinkleMinifigure, checked as a whole figure×1
Princess VaniaMinifigure, checked as a whole figure×1
Skull SorcererMinifigure, checked as a whole figure×1
Cole / Hero Cole - Clip on BackMinifigure, checked as a whole figure×1
Zane / Hero Zane - Clip on BackMinifigure, 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.