TM 5-826-6/AFR 93-5
(2) Severity levels. Severity levels are defined by the difference in elevation across the fault and the associated
decrease in ride quality and safety as severity increases.
Difference in Elevation
Runways/Taxiways
Aprons
L < 1/4 inch
1/8 - 1/2 inch
M 1/4 - 1/2 inch
(figs. A-111 and A-112)
H >1/2 inch
1/2 -1 inch
(figs. A-114 and A-115)
(fig. A-113)
> 1 inch
Figure A-111. Low severity settlement on apron, case 1.
Figure A-112. Low seventy settlement on apron, case 2.
A-63
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