Free tool

LEGO Missing Piece Checker

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.

Skybound Plane

Checking

30421 Skybound Plane

26 pieces in 18 part and color combinations, plus 1 minifigure.

The piece count includes the 4 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.

Show

Piece checklist

Dark Bluish Gray 7 pieces

  • Brick Special 2 x 4 x 1 1/3 with Pin Holes and 2 x 2 Recessed Dark Bluish Gray Part 18975 Element 6150297 or 6105731 ×1
  • Handlebars Dark Bluish Gray Part 30031 Element 4261908 or 4210644 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×4
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×1

Black 5 pieces

  • Boat, Anchor - Two Top Holes Black Part 95354 Element 6170707 or 4620400 ×1
  • Mudguard 2 x 4 with 2 x 2 Studs and Flared Wings Black Part 41854 Element 4184813 or 4163939 ×1
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×1
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Black Part 21459 Element 6557678 or 6116592 ×2

Reddish Brown 5 pieces

  • Boat / Ship Wheel / Helm with Slotted Pin Reddish Brown Part 4790b Element 6278548 or 4548857 ×1
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Reddish Brown Part 4871 Element 6039192 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Reddish Brown Part 15573 Element 6092590 ×1
  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Reddish Brown Part 32124 Element 6280388 or 6035580 ×1
  • Weapon Gun / Pistol Flintlock Reddish Brown Part 2562 Element 4536847 1 spare in the box ×1

Dark Orange 3 pieces

  • Brick Curved 2 x 2 x 2/3 Dark Orange Part 15068 Element 6104344 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Orange Part 61409 Element 6061592 ×1

Dark Brown 2 pieces

  • Plate 2 x 6 Dark Brown Part 3795 Element 4518687 ×2

Orange 2 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Orange Part 15573 Element 6092599 ×2

Trans-Brown 2 pieces

  • Equipment Bottle Trans-Brown Part 95228 Element 6507877 or 6247372 ×2

Minifigures 1 figure

  • Bucko Minifigure, 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.

Request a replacement from LEGO

Buy the piece

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.