Assertion: yaw damper | /r/HasProperty | inoperable
Facets:
value: per the minimum equipment list
type: OTHER
Source sentences:
text: It is required equipment (link is to FAA certification regs but similar regs apply elsewhere) in many (most?) transport aircraft, which tend to suffer Dutch roll instability, but flights can sometimes still be made if the yaw damper is inoperable per the minimum equipment list (MEL), with restrictions.