Plain bearing journal boxes with the following defects shall be removed from service immediately and repaired:

1. (a) A box that does not contain visible free oil;
2. (b) A box lid that is missing, broken, or open except to receive servicing;
3. (c) A box containing foreign matter, such as dirt, sand, or coal dust that can reasonably be expected to damage the bearing; or have a detrimental effect on the lubrication of the journal and bearing;

4. (d) A lubricating pad that:

   1. (1) Is missing;
   2. (2) Is not in contact with the journal;
   3. (3) Has a tear extending half the length or width of the pad, or more, except by design;
   4. (4) Shows evidence of having been scorched, burned, or glazed;
   5. (5) Contains decaying or deteriorated fabric that impairs proper lubrication of the pad;
   6. (6) Has an exposed center core (except by design); or
   7. (7) Has metal parts contacting the journal;

5. (e) A plain bearing that:

   1. (1) Is missing, cracked, broken;
   2. (2) Has a bearing liner loose;
   3. (3) Has a broken out piece; or

   4. (4) Has indications of having been overheated, as evidenced by:

      1. (i) Melted babbitt:
      2. (ii) Smoke from hot oil; or
      3. (iii) Journal surface damage; or

6. (f) A plain bearing wedge that:

   1. (1) Is missing, cracked or broken; or
   2. (2) Is not located in its design position.