How to Detect Damaged Jack Screws In Aircraft

Letter From the Author – Jack Screws Off the coast of California, in January 31, 2000, flight 261 experienced a catastrophic loss of pitch control which was caused by a damaged jack screws threads.  All 88 on board died instantly upon impact.  It was a very sad day.  The...
Residual Magnetism Test

Residual Magnetism Test on Electrically Operated Solenoid Valves

Residual Magnetism Test on Electrical Solenoid Valves   A residual magnetism test on electrically operated solenoid valves can be critical. We recommend a residual magnetism test should be conducted before installation in all manufacturing operations.  The minimum...