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.
822 pieces in 222 part and color combinations, plus 4 minifigures.
The official piece count includes the 17 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.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)White ×2Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Brick 1 x 8Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 4 x 6Black ×2Dark Bluish Gray ×7Black is darker than Dark Bluish Gray.
Hook with TowballDark Bluish GrayPart 30395Element 30395199 or 6347464×1
Support Crane Stand Double without Studs on Cross-Brace, with Axle Holes on TopGreenPart 92086Element 4594722×2
Flags, Banners and Signs
2 pieces
Road Sign Clip-on 2 x 2 SquareBlackPart 30258Element 4547041 or 4210585×2
Technic Connectors
2 pieces
Technic Pin Connector Round [Slotted]OrangePart 62462Element 6173129 or 4538144×2
Stickers
1 piece
Sticker Sheet for Set 7939-1[No Color/Any Color]Part 91144Element 4586574×1
Transportation - Sea and Air
1 piece
Cockpit 6 x 6 x 2 Cabin Base with Technic HolesDark Bluish GrayPart 47507Element 4209726×1
Minifigures
4 figures
Worker - Orange Safety Vest, Blue Legs, Red Helmet, GlassesMinifigure, checked as a whole figure×1
Worker - Orange Safety Vest, Blue Legs, Red Helmet, Silver GlassesMinifigure, checked as a whole figure×1
Train Machinist - White Torso, Blue Overall, Blue HatMinifigure, checked as a whole figure×1
Worker - Medium Blue Torso, Blue Overall, GlassesMinifigure, 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.