Chapter 1
Fatigue
Typical for its type
How short were its legs?
Utilization isn’t graded for N459SF: 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.
It lands about as often for its hours as most of the fleet, so cycles have built up at a normal pace.
Hours per landingLead measure. 35th percentile
Middle 1.4N459SF0.53+1.3 : 1middle Learjet 60 1.4 : 1
Short hops60th percentile
Middle 38%N459SF0%90%+41%middle Learjet 60 38%
Leg length57th percentile
Middle 436 nmN459SF100 nm1,000 nm+465 nmmiddle Learjet 60 436 nm