Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for JA680N: too few of its flights were tracked to count its use fairly, in the full report too. So its free chapter here is Fatigue, which doesn’t depend on catching every flight.
Short legs put more pressurization cycles on the structure for the same time in the air. Worth checking its cycle-based inspection limits before a pre-buy.
Hours per landingLead measure. 5th percentile
Middle 1.5JA680N0.52.5+0.9 : 1middle Citation Sovereign 1.5 : 1
Short hops98th percentile
Middle 38%JA680N0%90%+87%middle Citation Sovereign 38%
Leg length11th percentile
Middle 419 nmJA680N100 nm1,000 nm+230 nmmiddle Citation Sovereign 419 nm
How its legs split
Share of JA680N’s legs by length, nm, in the twelve months