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.
370 pieces in 138 part and color combinations, plus 4 minifigures.
LEGO counts 384 pieces. This inventory comes from a separate parts catalog and lists 395, including the 25 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.
Weapon Sword Crystalized with Hilt and PinTrans-Dark PinkPart 86146Element 6376231×1
Green
1 piece
Plate 2 x 4GreenPart 3020Element 302028×1
Pearl Titanium
1 piece
Bar 1L with Top Stud and Two Side StudsPearl TitaniumPart 92690Element 6158415×1
Trans-Red
1 piece
Tile Special 1 x 2 Grille with Bottom GrooveTrans-RedPart 2412bElement 6250158 or 4190187×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 71769-1[No Color/Any Color]Part 10001923Element 6398348×1
Minifigures
4 figures
Vengestone BruteMinifigure, checked as a whole figure×1
Cole, Crystalized ArmorMinifigure, checked as a whole figure×1
General AspheeraMinifigure, checked as a whole figure×1
Golden Dragon KaiMinifigure, 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.