This read-write Integer32 sets the 15-minute corrected-FEC level at which a threshold trap should be generated, defaulting to 0, which disables the threshold. Setting this lets an admin get proactively alerted while FEC is still successfully masking errors, rather than waiting until the errors become uncorrectable and service-affecting. For example, an operator wanting early warning of plant degradation would set stuFecCorrectThreshold to a modest nonzero value so a rising trend triggers a trap well before service quality actually suffers.