MIL-STD-849 Inspection Requirements, Definitions And Classification Of Defects For ParachutesThis standard establishes the inspection requirements and a standard classification of manufacturing and final assembly defects for parachutes.

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MIL-STD-849B

TABLE III.  Classification of defects - solid and extended skirt parachute canopies - personnel - Continued.

   Classification         No.                  Defect                                                                                 Major/Critical     Minor

1/4 to 1/2 inch and 1 per gore                                                                                  225

Over 1/2 inch and more than 1 per gore                                          139

Over 1/2 inch and more than 12 per canopy up to 35 feet              140

Over 1/2 inch and more than 14 per canopy over 35 feet

and up to 65 feet                                                                        141

Over 1/2 inch and more than 18 per canopy over 65 feet               142

23.        Wrinkles, pleats, or folds in skirt and vent hems extending into the gore fabric

1/16 to 1/8 inch and 1 per gore                                                                                226

Over 1/16 inch and more than 1 per gore                                        143

Over 1/16 inch and more than 6 per canopy up to 35 feet in

diameter                                                                                     144

Over 1/16 inch and more than 12 per canopy over 35 feet

and up to 65 feet in diameter                                                     145

Over 1/16 inch and more than 18 per canopy over 65 feet

in diameter                                                                                 146

Over 1/8 inch                                                                                   147

24.       Skirt hem outside stitching margin from edge of webbing

1/16 to 3/16 inch                                                                                                      227

Over 3/16 inch                                                                                 148

Any row of stitching not through skirt band webbing                    149

25.       Fold over of main seam around skirt webbing not straight                                           228

26.       Matching of centerline of seams when folded

1/8 inch to 1/4 inch                                                                                                  229

Over 1/4 inch                                                                                   150

27.       Skirt hem formed by more than 2 pieces of tape or webbing

unless otherwise specified on the applicable drawing                          151

28.       Tape or webbing used to form skirt hem does not extend across

a minimum of 4 gores                                                                            152

29.        Tucks, where section of gore fabric caught in stitching of seams or hems

Up to 1/4 inch wide and up to 1/2 inch long                                                           230

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