Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for N539JS: 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. 16th percentile
Middle 2.4N539JS15.5+1.8 : 1middle GV 2.4 : 1
Short hops51st percentile
Middle 30%N539JS0%70%+30%middle GV 30%
Leg length40th percentile
Middle 664 nmN539JS0 nm2,500 nm+599 nmmiddle GV 664 nm
How its legs split
Share of N539JS’s legs by length, nm, in the twelve months