Heli-Expo 2018: Airwolf solve Enstrom grounding dilemma
Enstrom helicopter operators who have been recently grounded by an FAA spindle Airworthiness Directive (AD) will be capable of resuming aircraft flight after Airwolf Aerospace received a tension-torsion (TT) Straps STC.
Under current arrangements the FAA AD grounds all piston Enstrom helicopters which have over 1500 hours on the spindles ...
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