AD 2009-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Raytheon | Various | Airworthiness Directives; Hawker Beechcraft Corporation Model MU-300-10 Airplanes and Model 400 and 400A Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes |
| aircraft | Beechcraft | Corporation Model MU-300-10 | Airworthiness Directives; Hawker Beechcraft Corporation Model MU-300-10 Airplanes and Model 400 and 400A Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes |
| aircraft | Mitsubishi | Various | Airworthiness Directives; Hawker Beechcraft Corporation Model MU-300-10 Airplanes and Model 400 and 400A Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes |
Unsafe Condition
Incomplete latching of the existing adjustment mechanism and cracked reinforcement assemblies, which could result in sudden shifting of a flightcrew seat.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an improved adjustment mechanism on the flightcrew seats and replace the existing aluminum seat reinforcement assemblies with steel assemblies, in accordance with specified service bulletins.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 200 hours time-in-service after March 13, 1996, for Hawker Beechcraft Model MU-300-10, Model 400, and Model 400A series airplanes. For Raytheon (Mitsubishi) Model MU-300 airplanes, within 200 flight hours or 12 months after the effective date of this AD, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Beechcraft Corporation Model 400 series airplanes (RJ-1 through RJ-65 inclusive), Model 400A series airplanes (RK-1 through RK-93 inclusive), Model MU-300-10 airplanes (A1001SA through A1011SA inclusive), and Raytheon (Mitsubishi) Model MU-300 airplanes (A003SA through A091SA inclusive).
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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