October 2015 Issue

“Best case” overhauls are rare

As part of its business plan to expand opportunistically, Continental Motors got into the PT-6 business in 2015 by purchasing United Turbine, a Miami-area shop with 24 years of turbine overhaul experience.

Like other shops of its type, United is a Swiss Army knife of sorts, taking on virtually all models of the PT-6A and the Twin-Pac PT-6T. Shop manager D.J. Davant ran us through the workflow on a recent visit.

As with piston overhauls, engines are brought in, stripped, cleaned and inspected for damage and out-of-spec parts. A good deal of that inspection involves non-destructive analysis to detect hidden cracks. United, as per FAA requirements, strictly follows the P&WC overhaul manual, but unlike the factory, it can rely on less expensive PMA parts or FAA-approved repairs that the factory might or might not use. (As noted, P&WC isn’t forthcoming about the details of its overhauls and won’t quote even price ranges until it sees an engine.)

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