Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for N631TS: 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. 20th percentile
Middle 1.3N631TS0.52.5+1.0 : 1middle Citation SII 1.3 : 1
Short hops77th percentile
Middle 53%N631TS0%100%+68%middle Citation SII 53%
Leg length50th percentile
Middle 284 nmN631TS100 nm900 nm+284 nmmiddle Citation SII 284 nm