| ERROR | inner ring not on the same plane as its outer ring |
| CAUSE | An inner ring was not on the same plane as its outer ring. |
| ACTION | Ensure that each inner ring is on the same plane as its outer ring. |
| ERROR | inner ring not on the same plane as its outer ring |
| CAUSE | An inner ring was not on the same plane as its outer ring. |
| ACTION | Ensure that each inner ring is on the same plane as its outer ring. |