Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for N540JL: 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. 6th percentile
Middle 1.1N540JL0.52.5+0.8 : 1middle CitationJet 1.1 : 1
Short hops91st percentile
Middle 56%N540JL0%100%+82%middle CitationJet 56%
Leg length1st percentile
Middle 272 nmN540JL100 nm800 nm+91 nmmiddle CitationJet 272 nm
How its legs split
Share of N540JL’s legs by length, nm, in the twelve months