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.
735 pieces in 263 part and color combinations, plus 8 minifigures.
LEGO counts 760 pieces. This inventory comes from a separate parts catalog and lists 763, including the 28 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 2Black ×5Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×2Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 with HandleBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Tail Shuttle - SmallWhitePart 44661Element 6253365 or 4288960×1
Bars, Ladders and Fences
3 pieces
Fence Spindled 1 x 4 x 2 [2 Top Studs]BlackPart 30055Element 4185652 or 3005526×1
Bar 4L (Lightsaber Blade / Wand)WhitePart 30374Element 6116602 or 4129836×2
Windscreens and Fuselage
3 pieces
Windscreen 7 x 4 x 2 RoundTrans-OrangePart 30384Element 4504623×2
Windscreen 4 x 4 Roll CageWhitePart 47758Element 6311420 or 4506544×1
Flags, Banners and Signs
2 pieces
Flag 2 x 2 Trapezoid with Flat Area between ClipsWhitePart 44676Element 6023099 or 4507191×2
Minifig Shields, Weapons, & Tools
2 pieces
Tool Chainsaw BladeDark Bluish GrayPart 6117Element 6166069 or 4211048×1
Tool Jackhammer / Motor HammerDark Bluish GrayPart 30228Element 4261117 or 4211083×1
Supports, Girders and Cranes
2 pieces
Support Crane Stand Double with Studs on Cross-BraceWhitePart 2635aElement 4562725 or 4225476×2
Tiles Round and Curved
2 pieces
Tile Round 2 x 2 with Bottom CrossBlackPart 4150Element 415076 or 415026×2
Minifig Neckwear
1 piece
Minifig Neckwear Jet Pack with Front StudBlackPart 4736Element 4298653×1
Pneumatics
1 piece
Pneumatic T-Piece (T Bar) [New Style]Light Bluish GrayPart 4697bElement 42115081 spare in the box×1
Stickers
1 piece
Sticker Sheet for Set 7690-1[No Color/Any Color]Part 59624Element 4506057×1
Minifigures
8 figures
MartianMinifigure, checked as a whole figure×4
Mars Astronaut, Cheek LinesMinifigure, checked as a whole figure×1
Mars Astronaut, Orange Sunglasses, StubbleMinifigure, checked as a whole figure×1
Mars Astronaut, Printed HairMinifigure, checked as a whole figure×1
Mars Astronaut, Stubble, Printed Hair over EyesMinifigure, 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.