[ken5050]

True..also, these planes do lots of short hops...many take-offs and landings..where stress/load is the greatest..Remember the Hawaiian Airlines plane that lost the top of the fuselage because of metal fatigue....That airlien does short interisland hops, so that airframe had nearly three times the number of evolutions as most other planes of the same hours of flight. It ( metal fatigue) was the contributing cause of the incident.

[Thermalseeker]

True..also, these planes do lots of short hops...many take-offs and landings..where stress/load is the greatest..Remember the Hawaiian Airlines plane that lost the top of the fuselage because of metal fatigue....

Utter nonsense. First of all, there isn't enough known about what happened to the Mallard to make any comparisons with any other crash of any other airplane. Second, the Mallard is nonpressurized. The Hawaiian Airlines 737 was pressurized. The failure of the Mallard, whatever the cause, clearly was not caused by repeated pressurization and depressurization cycles, as with the HA 737.

[Ninian Dryhope]

"Remember the Hawaiian Airlines plane that lost the top of the fuselage because of metal fatigue"

Yes, but these planes don't get high enough to even be pressurized. It is not like the Hawaiian plane where it is being pressurized while six miles up in the sky and then coming back down to sea level. At least back when I flew on one of these planes, back when it had radial piston engines, the plane hardly got off the ground.