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.
240 pieces in 93 part and color combinations, plus 3 minifigures.
LEGO counts 258 pieces. This inventory comes from a separate parts catalog and lists 267, including the 27 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.
Tile Round 1 x 1Trans-Light BluePart 98138Element 6514192 or 62747391 spare in the box×2
Windscreen 8 x 4 x 2 Curved with HandleTrans-Light BluePart 23448Element 6301841×1
Blue
2 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×2
Dark Tan
2 pieces
Brick Sloped 45° 2 x 1 with Bottom PinDark TanPart 3040bElement 4530678 or 4251973×2
Trans-Dark Pink
2 pieces
Weapon Sword CrystalizedTrans-Dark PinkPart 79985Element 63656801 spare in the box×1
Weapon Sword Crystalized with Hilt and PinTrans-Dark PinkPart 86146Element 6376231×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 71770-1[No Color/Any Color]Part 10001924Element 6398349×1
Minifigures
3 figures
Zane, Crystalized ArmorMinifigure, checked as a whole figure×1
General VangelisMinifigure, checked as a whole figure×1
Golden Dragon ColeMinifigure, 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.