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 XV.  Classification of defects - solid and extended skirt parachute canopies - cargo - Continued.

Classification

No.                  Defect                                                                                 Major/Critical     Minor

18.       Wrinkles and pleats in cross and main seams

Cross seams

1/16 to 1/4 inch and 1 per seam                                                                         216

1/16 to 1/4 inch and more than 1 per seam                                122

1/16 to 1/4 inch and more than 6 per canopy                            123

Over 1/2 inch                                                                             124

Main seams (canopies up to 100 feet in diameter)

19.       Vent and skirt hems improperly formed

Raw edge                                                                                         128

Underfold where edge is caught with 1 row of stitching                                        218

Over 1/4 inch and more than 18 per canopy over 65 feet in

67