TM 5-826-6/AFR 93-5
- Joint is moderately frayed with some loose or missing material (some FOD potential).
- Spall less than 2 feet long: spall is broken into pieces or fragmented with some of the pieces loose or absent, causing
considerable FOD or tire damage potential (figs. A-126 and A-127).
Figure A-126. Medium severity joint spay case 1.
Figure A-127. Medium severity joint spay case 2
(c) High severity level (H). For spall over 2 feet long.
- Spall is broken into more than three pieces defined by one or more high severity cracks with possibility of the
pieces becoming dislodged (high FOD potential).
- Joint is severely frayed with a large amount of loose or missing particles (high FOD potential (figs. A-128 and A-
129). If less than 2 feet of the joint is lightly frayed, the spall should not be counted.