“How long did you say the engine sat idle?”  What should be done to an engine to return it to service after it has sat idle for years? Answering that question requires answering several other questions: Was the engine preserved before it was stored? Was it stored in a climate-controlled facility? No? Out in the … Continued

If you are looking at changing aircraft from one PT6A powered aircraft to another or want the PT6A for the first time, view a list of aircraft and the type of PT6A.

Since 1972, Covington Aircraft has been a leader in aircraft engine repair. Join us as we look back over this long and storied history.  

This article originally appeared on the P&WC Airtime Blog. Jim Celentano, Director of Maintenance at Columbia Air Services with 39 years of experience with PT6As tells Airtime what he appreciates most about the engines.

An Airworthiness Directive (A.D.) is a directive issued when the FAA realizes that a perilous condition exists in a product (aircraft engine, airframe, appliance or propeller).  They notify aircraft operators and owners of potentially unsafe conditions requiring special inspections, alterations, or repairs. A Service Bulletin (S.B.) is a notice to an aircraft operator from a … Continued

From time to time, I would like to talk about unscheduled events on the PT6A engine. Unscheduled events are the incidents that none of us want or need, but they do happen despite our best efforts. There is a pretty big list in the maintenance manual of events that Pratt & Whitney Canada describe as … Continued

For over 50 years, operators of various PT6 engine models have endured Hot Starts.  In this article, we will talk about what a Hot Start is, how they occur, and the best practices to prevent Hot Starts from happening.  Exceeding temperature limits during a turbine start can cause severe engine damage and cost over $100,000 … Continued

PT6… Craymer’s Counsel I have received questions and heard many discussions about oil recently, so this month, let’s dive into oil. When it comes to engine oil there are several choices and your experience has helped you determine the correct type of oil for your operation.  Just for knowledge, Pratt and Whiney Canada provides lists … Continued

PT6… Craymer’s Counsel In 2021, we celebrated the 100th year of agricultural aviation and I celebrated my 25th year with Covington Aircraft. Many achievements in life are marked by time. “Let every man be master of his time.” ― William Shakespeare.  Now many of you are wondering, Craymer how are you going to talk about engine … Continued