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Critical Characteristic.

Critical Characteristic – Any feature throughout the life cycle of a flight safety-critical aircraft
part (FSCAP) which, if nonconforming, missing, or degraded, could cause a catastrophic failure
resulting in loss or serious damage to the aircraft or an uncommanded engine shutdown resulting in an
unsafe condition. A characteristic can be critical in terms of dimension, tolerance, finish, or material; an
assembly, manufacturing, or inspection process; or an operation, field maintenance, or depot overhaul
requirement. A manufacturing-critical characteristic is produced during the manufacturing process.
An installation-critical characteristic, such as torque, is critical in terms of assembly or installation.

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