2 configurations on record at United Airlines. The same aircraft name can fly in more than one layout, so the config code is the truth: check the code on your booking rather than the aircraft name.
| 77G28J 336M | 77M28J 336M | |
|---|---|---|
| Business | 28rows 1-4 | 28rows 1-4 |
| Economy | 336rows 16-53 | 336rows 16-53 |
| Extra legroom | not stated | not stated |
| Total | 364 | 364 |
Only the rows that differ are marked. A figure the source never stated reads as not stated, never as zero.
Every figure on the linked pages was read at a named source with the read date shown.