Airworthiness Directive E9-6227
one-timeAirworthiness Directives; Hawker Beechcraft Corporation Model MU-300-10 Airplanes and Model 400 and 400A Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes
What this AD requires
The FAA is superseding an existing airworthiness directive (AD), which applies to certain BEECH Model 400, 400A, and MU-300-10 airplanes. That AD currently requires installation of an improved adjustment mechanism on the flightcrew seats and replacement of the existing aluminum seat reinforcement assemblies with steel assemblies. This new AD would add airplanes to the applicability of the existing AD. This AD results from reports of incomplete latching of the existing adjustment mechanism and cracked reinforcement assemblies, which could result in sudden shifting of a flightcrew seat. We are issuing this AD to prevent sudden shifting of a flightcrew seat, which could impair the flightcrew's ability to control the airplane.
Which aircraft AD E9-6227 applies to
Table 1 ties each serial range to a specific model: RJ-1-RJ-65 = Model 400 series; RK-1-RK-93 = Model 400A series; A1001SA-A1011SA = Model MU-300-10; A003SA-A091SA = Model MU-300. Concerns flightcrew seat adjustment mechanism/reinforcement assemblies.
Whether AD E9-6227 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
Supersession
Supersedes AD 96-03-07.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.