AD 2020-04-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Honda | Various | Airworthiness Directives; Honda Aircraft Company LLC |
Unsafe Condition
Damage to the wiring harness due to excessive slack in the wiring harness assembly that allows contact with the main landing gear tire, resulting in loss of normal braking and unavailability of the normal brakes is not annunciated to the pilot, because WST signal loss does not trigger the NORMAL BRAKE FAIL red crew alerting system (CAS) message.
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Required Actions
Inspecting the condition of the WST wiring harness, replacing the wiring harness if necessary, installing wiring hardware, and rerouting the WST wiring harness on both the left and right brake assemblies, and revising the Abnormal Procedures section of the airplane flight manual (AFM) and quick reference handbook (QRH).
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Compliance Time
Before further flight
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Affected Aircraft
Honda Aircraft Company LLC, Model HA-420 airplanes, serial numbers 42000012 through 42000125.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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