Squat Switches

Editorial Staff

Monday, September 21, 2020 at 02:08 PM ET

Verified

Key Takeaways:

Landing gear squat switches are a common source of various aircraft malfunctions, primarily affecting gear retraction/extension and generating false warning indications.
Frequent causes of failure include internal electrical shorts and broken or separated wiring, often at the switch body where wires flex.
Environmental factors, such as icy slush accumulation on the squat switches, can also disrupt aircraft systems like pressurization.
Some switch designs, featuring thick shrink wrap over wiring harnesses, can obscure damage and make pre-flight inspection and troubleshooting difficult.

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Beech 1900C

Internal Short

Editorial Staff