# Why do different sites list different lengths of the lower deck bulk cargo compartment for the A330-300?

From the following two links for Airbus A330-300, the length of "lower deck bulk cargo compartment" has two different values.

a) Air China lists the value as 511 cm

b) Airbus (see pg. 112) lists the value as 404 cm

Why?

• The Airbus document says: NOTE: APPROXIMATE DIMENSIONS DEPENDING ON AIRCRAFT CONFIGURATION. – fooot Dec 7 '17 at 20:22
• It is interesting they list the same usable volume though. – fooot Dec 7 '17 at 20:31
• fooot, you are right, in Airbus link we are referring about, there is note which declares the dimensions are approximate. But, about "..they list the same usable volume though.", considering only the two links called above, I can see that volumes value is provided only by airchinacargo.com/en/index.php?section=0-0149-0155-0176-0266 and it's not provided by by aircraft.airbus.com/fileadmin/media_gallery/files/tech_data/AC/… – d.pensopositivo Dec 9 '17 at 21:34