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...

Relay Test for Cockpit Lighting on Airbus 321

Relay Test for Cockpit Lighting on Airbus 321 The video below shows a relay test for the cockpit lighting on an Airbus 321 Relays on aircraft are typically bolted down to panels.  This makes it difficult to conduct a test.  In many cases the relay is removed from the panel and a...
Boeing 767

Mag-Probe Test Keeps Boeing 767 from Being Grounded for Good

On August 19, 2015 a problem occurred with one of the relays on a Boeing 767 Flight Idle and the Approach Idle control relay.   This problem was causing one of the Boeing 767 engines to run at different rpm’s when they were supposed to be running at the same rpm.   Aircraft...
Bartol Mag-Probe Applications Separated by Industry

MagProbe Testing a Leach Relay on a Boeing 767-300

MagProbe Testing a Leach Relay on a Boeing 767-300 Boeing 767-300 Leach Relay Here is another test using the Bartol Mag-Probe to test a Leach Relay on a Boeing 767-300. For over 10 years many of the Major Airlines have adopted using the Mag-Probe to separate mechanical from...

Testing Boeing Aircraft Solenoid Valves & Relays

Boeing Aircraft Solenoid Valves and Relays Hi Gents Hope your are well, I have used this Mag-Probe for few years now with a good result. If you have a fuel valve, lets say on a Boeing Aircraft B737 that will not open, you have to start by taking the connector off and measure the...

Solution to Boeing 787 Aircraft Lithium Batteries

Solution to Boeing 787 Aircraft Lithium Batteries   Over the years, I’ve discovered problems with aircraft circuit breakers and lithium batteries.  The Follow Post Goes into the Possible Cause of Damage to the Lithium Batteries on the Boeing 787 Aircraft As a result, I...
Leach Relays

Shielded Leach Relays on Boeing Aircraft

Leach Relays Play an Essential Part in Keeping a Plane Up and Running This post talks about the Bartol Mag-Probe Making quick tests on Boeing Aircraft Leach Relays  The Bartol Mag-Probe is Used in Aircraft Maintenance to Check the Coils of Electro-Mechanical Relays.  In order to...

Delta Airlines Reduce Flight Cancellations

Delta Airlines Reduce Flight Cancellations Due to a Consistently Better Maintenance Management Program   Flight delays cost $32.9 billion, passengers foot half the bill By Ann Brody Guy, College of Natural Resources | October 18, 2010 BERKELEY —The cost of domestic flight...
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