Airworthiness Directive · Amendment 39-14250 · Boeing Model 777-200 and -300 Series Airplanes
Boeing Model 777-200 and -300 Series Airplanes
This AD applies to Boeing Model 777-200 and -300 series airplanes, certificated in any category; as identified in Boeing Special Attention Service Bulletin 777-53-0042, dated April 15, 2004.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 777-200 and -300 series airplanes. This AD requires modification of the splice plate assemblies installed under the floor panels at the forward and aft edges of the cabin aisle. This AD results from reports of cracking of the aluminum splice plates under the floor panels in the cabin aisle. We are issuing this AD to prevent loss of the capability of the cabin floor and seat track structure to support the airplane interior inertia loads under emergency landing conditions. Loss of this support could lead to galley or seat separation from attached restraints, which could result in blocking of the emergency exits and consequent injury to passengers and crew.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 60 months after the effective date of this AD: Except as provided by paragraph (g) of this AD, modify the splice plate assemblies installed under the floor panels at the forward and aft edges of the cabin aisle (including replacement of damaged fasteners with new fasteners) in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-53-0042, dated April 15, 2004.
(g) The referenced service bulletin recommends marking the service bulletin number on the top of the floor panel assembly, but this AD does not require that action.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
