Squat Switches

Editorial Staff

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

Verified

Key Takeaways:

Landing gear squat/weight-on-wheels switches are susceptible to failures ranging from internal shorts and environmental interference (e.g., icy slush) to broken wiring.
Malfunctions of these switches can lead to critical operational issues, including incomplete landing gear retraction, false gear unsafe indications, and pressurization failures.
A recurring issue, particularly with Piper PA-44-180 squat switches, involves wires breaking near the switch body, often obscured and exacerbated by thick shrink wrap.

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Beech 1900C

Internal Short

Editorial Staff