GLOSSARY (Continued)
Definition
S (Continued)
Serviceable . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment or parts that are in a condition which allows
them to be returned to operational statuson an aircraft.
Subassembly . . . . . . . . . . . . . . . . . . . . . . . . . A self-contained unit of an assembly that can be removed,
replaced and repaired separately; turbine nozzles and com-
bustion liners are typical subassemblies.
T
Tear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A forcible, somewhat crude pulling or wrenching awayof
material so that ragged or irregular edges result.
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Testing of equipment to determine that the unit functions
properly within specified limits.
Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . Therange of variation allowed in maintaining a specified
dimension in making part.
. . . . . . . . . . . . . . . . . To tighten a nut, bolt, or fitting, using a torque wrench, to
Torque
a specified torque value expressed as inch-pounds or as foot-
pounds.
U
Undershooting . . . . . . . . . . . . . . . . . . . . . . . When theexpected Nl or N2 speed isnotreached and then
creeps up to the expected level.
Underspeed . . . . . . . . . . . . . . . . . . . . . . . . . When the expected N1 or N2 speed is not reached.
v
Void . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A continuous lack of braze material through a braze joint
cross-section caused by improper repair.
W
Wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relatively slow removal of parent material from any cause,
frequently not visible to the naked eye.
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