Submitted by Curt Campbell, avionics tech rep
There have been many articles and videos in the Duncan Intelligence over the years, written and produced by tech reps and technicians at Duncan Aviation about the proper care and maintenance of an aircraft gyro.
However, it wasn't long ago that I got a call from an operator who was having precession errors and failures to erect on his gyro. It didn't take long for me to figure out that the cause of his issue was the result of the gyro not being allowed enough time (20 minutes) to spool-down before the aircraft was moved.
He stated his crew wasn't aware of this required spool-down time. This oversight unfortunately required a complete overhaul of the gyro, costing several thousand dollars.
Time for another reminder..
I encourage you to share this information with all personnel tasked with aircraft movement/maintenance in your company. Below are links for your use. You can bookmark them for future reference.
Gyro Handling Care
(VIDEO) How To Care For Your Aircraft Gyro: Proper Spool-Down Time
(VIDEO) How to Care for Your Aircraft Gyro: Handle Like Eggs
Proper Handling of Your Gyroscope
Gyro Shipping Procedures
Critical Shipping Procedures When Transporting An Aircraft Gyroscope
Gyro Maintenance
What are Electrolytic Leveling Switches and Why Should You Care?
What Happens During an L-3 Vertical Gyro Overhaul?
Recommended Service Bulletins for L-3 Vertical Gyros
Recommended Service Bulletins for Honeywell Vertical and Directional Gyros
What Happens During an L-3 Vertical Gyro Overhaul?
Gyro Exchange Units
Honeywell Aerospace VG14A Gyro SPEX Exchanges
Duncan Intelligence
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