Wired

During a routine inspection, the technician noted the strobe lights would remain on after the switch was selected off. Troubleshooting revealed the switch to be defective. Removing and disassembling the switch revealed the solder joint holding the braided wire had broken and welded itself to the line post. Switch was replaced IAW AD 2008-13-17 in May 2009.

Editorial Staff

Monday, November 21, 2016 at 12:00 AM ET

Verified

Key Takeaways:

A frequent cause of aircraft malfunctions, including avionics, engine, and lighting systems, is damaged electrical wiring due to chafing or abrasion.
Improperly secured or installed wiring, such as poor crimping or failed solder joints, frequently leads to broken connections and system failures.
These wiring integrity issues can manifest as diverse problems, ranging from persistent lights and intermittent power to complete component failures and misleading indicator readings.