AD 2010-10-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Raytheon | Various | Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate No. A00010WI Previously Held by Raytheon Aircraft Company) Model 390 Airplanes |
| aircraft | Beechcraft | Corporation Model 390 | Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate No. A00010WI Previously Held by Raytheon Aircraft Company) Model 390 Airplanes |
Unsafe Condition
Improper installation of the metal oxide varistor (MOV) and spark gap wiring of the essential bus lightning strike protection, which could result in overload of the MOV in a lightning strike and allow electrical energy to continue to the essential bus, disabling equipment such as the autopilot, anti-skid system, hydraulic indicator, spoiler system, pilot primary flight display, audio panel, or the air data computer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the essential bus lightning strike protection for proper installation of MOV and spark gap wiring. Where improper wiring is found, rework the essential bus lightning strike wiring installation for the MOV and spark gap.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 200 hours time-in-service after June 21, 2010, or within the next 12 months after June 21, 2010, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Beechcraft Corporation Model 390 airplanes, serial numbers RB-4 through RB-248, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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